Труды сотрудников ИЛ им. В.Н. Сукачева СО РАН

: материалы временных коллективов / G. F. Antonova, T. N. Varaksina, V. V. Stasova // Eurasian Journal of Forest Research. - 2007. - Vol. 10-2. - С. 149-161. - Библиогр. в конце ст.
Аннотация: The rate of lignin deposition, its content and composition, and molecular weight distribution of different stages of secondary wall thickening during tracheid development of both earlywood and latewood in Siberian larch (Larix sibirica Ldb.) were studied in the stems of 25-year-old trees. The cells of early and late xylem at different stages of secondary wall development were obtaint in late June and early in August, respectively. Lignification of the two types of wood was found to involve different dynamics. The intensity of lignin synthesis during earlywood formation increases gradually, reaching the maximum at the last stage of tracheid maturation. In contrast, lignin deposition in the course of latewood development is the highest only in the first stage of lignification and declines by the end of tracheid maturation. There were differences in the composition of alkaline oxidation products of lignin preparations at different development stages of early and late xylem. The amount of cell wall substances deposited before lignification in earlywood is larger than that in latewood.

Держатели документа:
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок, 50, стр., 28

Доп.точки доступа:
Varaksina, Tamara Nikonorovna; Вараксина, Тамара Никоноровна; Stasova, Victoria Victorovna; Стасова, Виктория Викторовна; Антонова, Галина Феодосиевна
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/ P. . Fonti [et al.] // Am. J. Bot. - 2013. - Vol. 100, Is. 7. - P1332-1343, DOI 10.3732/ajb.1200484. - Cited References: 53. - The authors thank N. S. van Doorn for editing the English. This work has been supported by the Russian Foundation for Basic Research (Project Number 11-04-91153_a) and the Swiss National Science Foundation projects "Identifying seasonal climatic signals from water conducting cells in tree rings" (Nr. IZK0Z3_131408), "Tree growth and forest ecosystem functioning in Eurasia under changing climate" (Nr. IZ73Z0_128035), and "INtra-seasonal Tree growth along Elevational GRAdients in the European Alps" (INTEGRAL, Nr 200021_121859), and the Ministry of Education and Science of the Russian Federation (Scientific School 5327.2012.4). . - 12. - ISSN 0002-9122РУБ Plant Sciences

Аннотация: Premise of the study: Xylem structure determines the hydraulic and mechanical properties of a stem, and its plasticity is fundamental for maintaining tree performance under changing conditions. Unveiling the mechanism and the range of xylem adjustment is thus necessary to anticipate climate change impacts on vegetation. Methods: To understand the mechanistic process and the functional impact of xylem responses to warming in a cold-limited environment, we investigated the relationship between temperature and tracheid anatomy along a 312-yr tree-ring chronology of Larix sibirica trees from the Altay Mountains in Russia. Key results: Climate-growth analyses indicated that warming favors wider earlywood cell lumen, thicker laewood walls, denser maximum latewood, and wider rings. The temperature signal of the latewood was stronger (r > 0.7) and covered a longer and more stable period (from June to August) than that of earlywood and tree-ring width. Long-term analyses indicated a diverging trend between lumen and cell wall of early-and latewood. Conclusions: Xylem anatomy appears to respond to warming temperatures. A warmer early-growing season raises water conduction capacity by increasing the number and size of earlywood tracheids. The higher-performing earlywood tracheids promote more carbon fixation of the latewood cells by incrementing the rate of assimilation when summer conditions are favorable for growth. The diverging long-term variation of lumen and cell wall in earlywood vs. latewood suggests that xylem adjustments in latewood increase mechanical integrity and support increasing tree size under the ameliorated growing conditions.

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Держатели документа:
[Fonti, Patrick] WSL Swiss Fed Res Inst, CH-8903 Birmensdorf, Switzerland
[Bryukhanova, Marina V.
Kirdyanov, Alexander V.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia
[Myglan, Vladimir S.
Naumova, Oksana V.
Vaganov, Eugene A.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
Институт леса им. В.Н. Сукачева Сибирского отделения Российской академии наук : 660036, Красноярск, Академгородок 50/28

Доп.точки доступа:
Fonti, P...; Bryukhanova, M.V.; Myglan, V.S.; Kirdyanov, A.V.; Naumova, O.V.; Vaganov, E.A.

/ M. . Bryukhanova, P. . Fonti // Trees-Struct. Funct. - 2013. - Vol. 27, Is. 3. - P485-496, DOI 10.1007/s00468-012-0802-8. - Cited References: 45. - This study was supported by Swiss National Foundation through an International short visit (Grant number: #131408) and through the cooperation on the project INTEGRAL (#121859). We would like to thank David Frank and Georg von Arx for their assistance and critical discussion of an earlier version of the manuscript, and Kathlene English and Gregory King for the English review. . - 12. - ISSN 0931-1890РУБ Forestry

Аннотация: Thanks to acclimation, trees overcome environmental changes and endure for centuries. The anatomy of water conducting cells is an important factor determining plant success. Forming cells are coupled with the environment and their properties are naturally archived in the wood. Its variability across tree rings can thus provide a retrospective of plant's hydraulic adjustments. In this work, we measured lumen and wall thickness of tracheids along tree-rings to explore how trees regulate their conducting system under variable plant-water conditions. Tracheids were measured along 51 dated rings of five mature Larix decidua and Picea abies trees from a low elevation site. Anatomical-based chronologies of annual growth performance, hydraulic conductance and safety, and construction costs were built. Similarities among chronologies and the relation to monthly climate data were analyzed. Most parameters displayed high annual plasticity which was partly coherent among trees and mostly associated with radial growth. In general, summer drought reduced growth and potential hydraulic conductivity of the forming ring, and increased hydraulic safety and construction costs. To evaluate the functional relevance of the annual acclimation, the conductivity of the forming ring relative to the entire sapwood needs to be assessed.

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Держатели документа:
[Bryukhanova, Marina] VN Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia
[Fonti, Patrick] WSL Swiss Fed Res Inst, CH-8903 Zurich, Switzerland

Доп.точки доступа:
Bryukhanova, M...; Fonti, P...

/ G. F. Antonova [et al.] // Russ. J. Dev. Biol. - 2012. - Vol. 43, Is. 4. - P199-208, DOI 10.1134/S1062360412040029. - Cited References: 51. - This work was supported by the Russian Foundation for Basic Research, project no. 06-04-49501. . - 10. - ISSN 1062-3604РУБ Developmental Biology

Аннотация: The content and fractional composition of alcohol soluble phenolic acids (PhA) in cells with different degree maturation and lignification in the course of early and late wood formation in the pine (Pinus sylvestris L.) stem during vegetation were studied. Phenolic compounds (PhC), extracted by 80% ethanol, were divided into free and bound fractions of PhA. In turn, the esters and ethers were isolated from bound PhA. The contents of all substances were calculated per dry weight and per cell. Considerable differences have been found to exist in both the contents and the composition of the fractions PhA on successive stages of tracheid maturation of early and late xylem. Early wood tracheids at all secondary wall thickening steps contained PhC less and free PhA more than late wood tracheids. Throughout earlywood tracheid maturation, the pool of free PhA per cell declined at the beginning of lignification and then increased gradually while that of bound PhA decreased. The maturation of late wood tracheids were accompanied by the rise of free PhA pool and the diminution of bound PhA pool. In the composition of bound PhA, the ethers were always dominant, and the amount of that in earlywood cells was less than in latewood cells. The cells of early xylem at all steps of maturation contained more of esters. The sum total of free hydroxycinnamic acids, precursors of monolignols, gradually decreased during early xylem lignification as the result of the reduction of the pools of p-coumaric, caffeic, ferulic and synapic acids, while that of their esters rised. In the course of late xylem lignification, the pools of free p-coumaric, ferulic and, especially, synapic acids increased. Simultaneously, the amount of ferulic acid ester and synapic acid ether increased too. According to the data, lignin biosynthesis in early xylem and late xylem occurs with different dynamics and the structure of lignins of two xylem types might be different too.

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[Antonova, G. F.
Varaksina, T. N.
Zheleznichenko, T. V.
Stasova, V. V.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forest, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Antonova, G.F.; Varaksina, T.N.; Zheleznichenko, T.V.; Stasova, V.V.

[Text] / E. A. Vaganov [et al.] // Astrobiology. - 2004. - Vol. 4, Is. 3. - P391-399, DOI 10.1089/ast.2004.4.391. - Cited References: 34 . - 9. - ISSN 1531-1074РУБ Astronomy & Astrophysics + Biology + Geosciences, Multidisciplinary

Аннотация: We analyzed tree rings in wood samples collected from some of the few surviving trees found close to the epicenter (within 4-5 km) of the Tunguska event that occurred on the last day of June 1908. Tree-ring growth shows a depression starting in the year after the event and continuing during a 4-5-year period. The most remarkable traces of the event were found in the rings' anatomical structure: (1) formation of "light" rings and a reduction of maximum density in 1908; (2) non-thickened tracheids (the cells that make up most of the wood volume) in the transition and latewood zones (the middle and last-formed parts of the ring, respectively); and (3) deformed tracheids, which are located on the 1908 annual ring outer boundary. In the majority of samples, normal earlywood and latewood tracheids were formed in all annual rings after 1908. The observed anomalies in wood anatomy suggest two main impacts of the Tunguska event on surviving trees-M defoliation and (2) direct mechanical stress on active xylem tissue. The mechanical stress needed to fell trees is less than the stress needed to cause the deformation of differentiating tracheids observed in trees close to the epicenter. In order to resolve this apparent contradiction, work is suggested on possible topographic modification of the overpressure experienced by these trees, as is an experimental test of the effects of such stresses on precisely analogous growing trees.

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Держатели документа:
Univ Arizona, Tree Ring Res Lab, Tucson, AZ 85721 USA
Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk, Russia
Russian Acad Sci, Inst Monitoring Climat & Ecol Syst, Siberian Branch, Tomsk, Russia

Доп.точки доступа:
Vaganov, E.A.; Hughes, M.K.; Silkin, P.P.; Nesvetailo, V.D.

[Text] / G. F. Antonova, I. A. Chapligina ; ed.: R Lagana, S Kurjatko, , S Kurjat // WOOD STRUCTURE AND PROPERTIES' 06 : ARBORA PUBLISHERS, 2006. - 5th International Symposium Wood Structure and Properties (SEP 03-06, 2006, Sliac Siehnica, SLOVAKIA). - P25-31. - Cited References: 22 . - 7. - ISBN 978-80-968869-4-4РУБ Materials Science, Paper & Wood

Аннотация: The deposition of cellulose, matrix polysaccharides and lignin during secondary cell wall development of early- and latewood in larch (Larix sibirica Ldb.) were studied using biochemical and histochemical methods. Active tissues at successive stages of secondary cell wall development were sampled from larch trunk and characterized by morphological parameters and the content of cellulose, lignin and matrix hemicelluloses, being the structural base for lignification. Matrix polysaccharides were divided by their solubility in 4 % and 24 % KOH and neutral medium. All data were accounted per dry weight and per cell. The amount of biomass (as cell wall cross-section area) deposited before lignification was more in earlywood tracheids than in latewood ones. In contrast. the amount of cellulose at this stage was more in latewood tracheids. The intensity of cellulose synthesis was the highest at the initial stage of lignin deposition in both earlywood and latewood and then declined towards to mature xylem. The intensity of lignin deposition was the highest at the last stage of secondary cell wall development during earlywood formation and from the outset of latewood lignification, dropping towards mature xylem. The contents of A and B hemicellulose fractions linked or not with cellulose, before and after beginning of lignification were different during earlywood and latewood formation. Before lignin deposition, the content of B-4 fraction in both earlywood and latewood was practically equal as well as of B-24, while the amount of A-4 fraction before lignification of early xylem was two times more than that of latewood. This shows different matrix base for the beginning of lignification. All together can be the reason for different physicochemical properties of two types of wood in larch.

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Держатели документа:
Russian Acad Siences, SB, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Antonova, G.F.; Chapligina, I.A.; Lagana, R \ed.\; Kurjatko, S \ed.\; Kurjat, , S \ed.\

[Text] / P. P. Silkin, A. V. Kirdyanov // Holzforschung. - 2003. - Vol. 57, Is. 1. - P1-7, DOI 10.1515/HF.2003.001. - Cited References: 15 . - 7. - ISSN 0018-3830РУБ Forestry + Materials Science, Paper & Wood

Аннотация: Mass accumulation dynamics in earlywood and latewood cell walls of larch from northern regions of Central Siberia are investigated and correlations among cell mass of different tree-ring zones, radial tracheid sizes and tree-ring width are found. A linear relationship exists between cell wall mass and radial cell size. The deviation of cell mass from the regression line (index of mass deviation) and the mean density of the respective tree-ring zone are similarly functionally dependent on the radial cell size and reflect the realization of the potential determined during the period of cell formation. There is a critical value of larch tree-ring width in relation to cell mass. For the tree-rings with width less than this critical value the difference in the mass of earlywood and latewood cells increases with decreasing tree-ring width. The cell wall mass correlates with the monthly temperatures of June and July. Under favorable growing conditions tracheids with similar mass of cell walls are formed in earlywood and latewood, while under unfavorable conditions cell wall mass accumulation in latewood is severly limited. A comparative analysis of the cell wall mass in earlywood and latewood indicates that mass accumulation is independent of the switching processes from earlywood production to the production of latewood.

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Держатели документа:
RAS, Inst Forest SB, Krasnoyarsk, Russia

Доп.точки доступа:
Silkin, P.P.; Kirdyanov, A.V.

[Text] / Y. V. Savva [et al.] // Silvae Genet. - 2002. - Vol. 51, Is. 02.03.2013. - P49-55. - Cited References: 40 . - 7. - ISSN 0037-5349РУБ Forestry + Genetics & Heredity

Аннотация: Eight tree-ring characteristics (tree ring width, latewood and earlywood widths and densities, maximum and minimum densities and latewood percentage) were measured densitometrically in 16 Scots pine provenances in the southern taiga, Central Siberia. Age trends were excluded by standardization. It was found that the sensitivity coefficient of latewood width, latewood and maximum densities and latewood percentage has a tendency to decrease in relation to the increasing latitude of seed sources. Northern provenances utilise only the energy resources (heat and light) during the first half of the growing season effectively. The correlation of tree ring series between the local provenance and the other provenances decreases in relation to the increasing latitude difference between seed origins. As a whole, the values of the normalized Euclidean distance, correlation and synchronicity coefficients between the local provenance and the other provenances prove that, for most of the provenances, the interannual variability of the chosen tree ring characteristics reflects the prevailing influence of weather conditions (even for the populations from the northern taiga and forest-tundra zone). The variability of weather conditions determines up to 85% the variability of radial growth and wood density.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Inst Forests, Krasnoyarsk, Russia
Swiss Fed Inst Forest Snow & Landscape Res, CH-8903 Birmensdorf, Switzerland

Доп.точки доступа:
Savva, Y.V.; Schweingruber, F.H.; Kuzmina, N.A.; Vaganov, E.A.

/ G. F. Antonova [et al.] // Wood Sci Technol. - 2014. - Vol. 48, Is. 5. - P. 919-936, DOI 10.1007/s00226-014-0650-3 . - ISSN 0043-7719
Аннотация: Lignin deposition at consecutive secondary wall thickening stages of early and late xylem cells during annual ring wood formation in Scots pine (Pinus sylvestris L.) stems was studied. Lignin patterns, isolated by thioglycolic acid method, consisted of alcohol-soluble (LTGA-I) and alkali-soluble (LTGA-II) fractions. The sum of two fractions, being the total lignin content, gradually increased in the course of lignification. However, the increments of lignin amount at each development stage of early and late tracheids were different. The intensity of lignin deposition increased in the course of earlywood tracheid maturation and decreased toward the end of latewood cell differentiation. The deposition of two lignin fractions in each layer of forming wood also occurred oppositely. The increment of LTGA-I descended, whereas that of LTGA-II increased from the beginning to the end of early xylem lignification. In contrast, LTGA-I increment dropped, whereas LTGA-II rose during late xylem lignification. Gel permeation chromatography showed that the lignins, formed at the beginning of lignification, were more homogeneous and had higher molecular weight compared with the lignins at the end of cell differentiation. Besides, the content of cellulose, estimated as the residue after lignin isolation, and of cell wall substances, presented as cell wall cross-section areas, at consecutive maturation stages of early and late xylem cells have been found to be different. The data show that lignin deposition occurred in different conditions and with opposite dynamics during early and late xylem formation. © 2014 Springer-Verlag Berlin Heidelberg.

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Держатели документа:
V.N. Sukachev Institute of Forest SB RAS, Akademgorodok, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Antonova, G.F.; Varaksina, T.N.; Zheleznichenko, T.V.; Stasova, V.V.

/ G. F. Antonova // : Nova Science Publishers, Inc., 2016. - P1-30 . -
Аннотация: The content and fractional composition of alcohol soluble phenolic acids (PhAs), in particular of hydroxycinnamic acids (HCAs), at consecutive stages of cell differentiation during earlywood and latewood formation in Pinus sylvestris L. stems were studied. Phenolic acids were divided into free and bound fractions. In turn, the esters and ethers were isolated from bound PhAs. The bound acids dominated in PhAs but the amounts of the ethers and esters were different at the stages of growth and maturation of early- and latewood cells. The content of free fraction changed also during cell differentiation. The content coffeic, p-coumaric, ferulic and sinapic acids into the each of the fractions were assessed. Individual HCAs and benzoic acid changed in dependence on the stages of growth expansion and maturation/lignification and the type of forming wood. The data were discussed in the relation to cell growth and xylem lignification during annual ring wood formation. © 2017 by Nova Science Publishers, Inc. All rights reserved.

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Держатели документа:
VN Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Antonova, G. F.

[Text] : научное издание / G.F. Antonova, V.V. Stasova, N.V. Astrakhantseva // Сибирский лесной журнал. - 2017. - № : 1. - P25-36 : табл., DOI 10.15372/SJFS20170103. - Библиогр. в конце ст. . - ISSN 2311-1410

УДК

581.176

581.19

577.164.2

Аннотация: The contents of ascorbate (AsA) and dehydroascorbate (DHA) and their ratio, showing cellular redox state of AsA, were studied in the cells of the separate tissues at different levels of <i>Pinus sylvestris</i> L. stem during early- and latewood formation. Morphological status of the cells in the tissues and the content of soluble carbohydrates were also estimated. The cellular redox potential of AsA has been found to depend on the type of tissue, cell development degree, the level of stem and the type of forming wood. The content of AsA and AsA/DHA ratio in the cells of non-conducting phloem along the stem were higher than in mature xylem and less during earlywood than latewood formation. The cells of conducting phloem and forming xylem, as the principal tissues taking part in annual ring wood formation, differed in the content of acids in the course of early and late xylem formation. Along the stem, the content of AsA decreased in conducting phloem cells and increased in the cells of forming xylem during both early- and latewood formation. The AsA/DHA of conducting phloem during earlywood formation was greatest below the stem and diminished to the top of the tree, while in the course of latewood development it was similar at all levels. In forming xylem AsA/DHA increased to the top of tree during the early xylem formation and decreased in late xylem that indicates the differences in oxidation-reduction reactions into the cells of two type of forming wood. The data are discussed according to morphological development of cells and the content of carbohydrates.
The contents of ascorbate (AsA) and dehydroascorbate (DHA) and their ratio, showing cellular redox state of AsA, were studied in the cells of the separate tissues at different levels of <i>Pinus sylvestris</i> L. stem during early- and latewood formation. Morphological status of the cells in the tissues and the content of soluble carbohydrates were also estimated. The cellular redox potential of AsA has been found to depend on the type of tissue, cell development degree, the level of stem and the type of forming wood. The content of AsA and AsA/DHA ratio in the cells of non-conducting phloem along the stem were higher than in mature xylem and less during earlywood than latewood formation. The cells of conducting phloem and forming xylem, as the principal tissues taking part in annual ring wood formation, differed in the content of acids in the course of early and late xylem formation. Along the stem, the content of AsA decreased in conducting phloem cells and increased in the cells of forming xylem during both early- and latewood formation. The AsA/DHA of conducting phloem during earlywood formation was greatest below the stem and diminished to the top of the tree, while in the course of latewood development it was similar at all levels. In forming xylem AsA/DHA increased to the top of tree during the early xylem formation and decreased in late xylem that indicates the differences in oxidation-reduction reactions into the cells of two type of forming wood. The data are discussed according to morphological development of cells and the content of carbohydrates.

РИНЦ

Держатели документа:
Solitary Unit V. N. Sukachev Institute of Forest, Russian Academy of Sciences, Siberian Branch

Доп.точки доступа:
Antonova, Galina Feodosiyevna; Stasova, Victoria Victorovna; Стасова, Виктория Викторовна; Astrakhantseva, Natalia Vladimirovna; Астраханцева, Наталья Владимировна; Антонова, Галина Феодосиевна

/ J. Camarero [et al.] // Trees-Struct. Funct. - 2017. - Vol. 31, Is. 5. - P1423-1437, DOI 10.1007/s00468-017-1559-x. - Cited References:74. - We acknowledge the support of Spanish Ministry of Economy Projects (Fundiver, CGL2015-69186-C2-1-R). Tree-ring density data were obtained and analysed under support of Russian Science Foundation (Project 14-14-00295). . - ISSN 0931-1890. - ISSN 1432-2285РУБ Forestry

Аннотация: Minimum wood density exhibits strong responses to precipitation and, thus, it is a robust proxy of early season water availability. Tracheids fulfil most wood functions in conifers (mechanical support and water transport) and earlywood tracheids account for most hydraulic conductivity within the annual tree ring. Dry conditions during the early growing season, when earlywood is formed, could lead to the formation of narrow tracheid lumens and a dense earlywood. Here, we assessed if there is a negative association between minimum wood density and early growing-season (spring) precipitation. Using dendrochronology, we studied growth and density data at nine forest stands of three Pinaceae species (Larix sibirica, Pinus nigra, and Pinus sylvestris) widely distributed in three cool-dry Eurasian regions from the forest-steppe (Russia, Mongolia) and Mediterranean (Spain) biomes. We measured for each annual tree ring and the common 1950-2002 period the following variables: earlywood and latewood width, and minimum and maximum wood density. As expected, dry early growing season (spring) conditions were associated with low earlywood production but, most importantly, to high minimum density in the three conifer species. The associations between minimum density and spring precipitation were stronger (r = -0.65) than those observed with earlywood width (r = 0.57). We interpret the relationship between spring water availability and high minimum density as a drought-induced reduction in lumen diameter, hydraulic conductivity, and growth. Consequently, forecasted growing-season drier conditions would translate into increased minimum wood density and reflect a reduction in hydraulic conductivity, radial growth, and wood formation. Given the case-study-like nature of this work, more research on other cold-dry sites with additional conifer species is needed to test if minimum wood density is a robust proxy of early season water availability.

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CSIC, IPE, Avda Montanana 1005, Zaragoza 50059, Spain.
Univ Alcala De Henares, Dept Life Sci, Forest Ecol & Restorat Grp, Madrid 28802, Spain.
Sukachev Inst Forest SB RAS, Akademgorodok 50-28, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Inst Ecol & Geog, Pr Svobodny 82, Krasnoyarsk 660041, Russia.
Univ Barcelona, Dept Evolutionary Biol Ecol & Environm Sci, E-08028 Barcelona, Spain.
Siberian Fed Univ, Dept Forestry, Krasnoyarsk 660041, Russia.
Inst Plant & Anim Ecol SD RAS, 8 Marta Str 202, Ekaterinburg, Russia.
Univ Lleida, Dept Crop & Forest Sci, AGROTECNIO Ctr, Rovira Roure 191, Lleida 25198, Spain.

Доп.точки доступа:
Camarero, J.; Fernandez-Perez, Laura; Kirdyanov, Alexander V.; Shestakova, Tatiana A.; Knorre, Anastasia A.; Kukarskih, Vladimir V.; Voltas, Jordi; Spanish Ministry of Economy Projects (Fundiver) [CGL2015-69186-C2-1-R]; Russian Science Foundation [14-14-00295]

/ E. A. Tyutkova [et al.] // J. Therm. Anal. Calorim. - 2017. - Vol. 130, Is. 3. - P1391-1397, DOI 10.1007/s10973-017-6550-7. - Cited References:33 . - ISSN 1388-6150. - ISSN 1588-2926РУБ Thermodynamics + Chemistry, Analytical + Chemistry, Physical

Аннотация: This paper deals with the results of a study of the thermodestruction of the earlywood and latewood in the 1988-1998 growth rings of Gmelin larch (Larix gmelinii (Rupr.) Rupr.) trees growing along the polar tree line (70(A)52'53aEuro(3)N, 102A degrees 58'26aEuro(3)E, Taimyr Peninsula). The study used methods of thermogravimetry (TG/DTG) and differential scanning calorimetry (DSC). Thermogravimetric data obtained were analyzed by Ozawa-Flynn-Wall kinetic model. We determined macrokinetic parameters of thermodestruction. Earlywood and latewood showed no significant difference in cellulose/hemicellulose/lignin ratio, whereas they differed significantly in destruction average value of activation energy (197.55 and 55.90 kJ mol(-1), respectively). Our analysis of the correlation of thermodestruction values with mean monthly air temperature and precipitation revealed that component composition of both earlywood and latewood was influenced more by the weather conditions at the beginning of the growing season (April-June). Air temperature had markable influence on the wood component composition during cell wall synthesis only in latewood, whereas precipitation influenced the composition in both latewood and earlywood. TG/DTG and DSC methods were found to be promising for developing information on biochemical composition of early and latewood tracheids in stems and for identifying the extent of the influence of climatic changes on cell wall synthesis.

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Держатели документа:
Russian Acad Sci, Siberian Branch, Forest Inst, Lab Phys & Chem Biol Woody Plants, Akad Dorodork 50-28, Krasnoyarsk 660036, Russia.
Russian Acad Sci, Siberian Branch, Forest Inst, Dendroecol Dept,Lab Tree Ring Struct, Krasnoyarsk, Russia.

Доп.точки доступа:
Tyutkova, E. A.; Loskutov, S. R.; Shashkin, A. V.; Benkova, V. E.

/ J. Bjorklund [et al.] // New Phytol. - 2017. - Vol. 216, Is. 3. - P728-740, DOI 10.1111/nph.14639. - Cited References:59. - This work was mainly funded by the Swiss National Science Foundation (grants iTREE CRSII3_136295 and P300P2_154543). M.V.B. was supported by the Russian Science Foundation (project no. 14-14-00219-p). H.E.C. was supported by the Swiss National Science Foundation (grant no. 160077, CLIMWOOD). P.F. was supported by the Swiss National Science Foundation (grant no. 150205, LOTFOR). G.v.A. was supported by a grant from the Swiss State Secretariat for Education, Research and Innovation SERI (SBFI C14.0104). We thank two anonymous referees for their thoughtful and constructive critiques, and also the numerous researchers who have contributed their tree-ring data to the International Tree-Ring Data Bank, IGBP PAGES/World Data Center for Paleoclimatology, NOAA/ NCDC Paleoclimatology Program; Boulder, Colorado. . - ISSN 0028-646X. - ISSN 1469-8137РУБ Plant Sciences

Аннотация: Interannual variability of wood density - an important plant functional trait and environmental proxy - in conifers is poorly understood. We therefore explored the anatomical basis of density. We hypothesized that earlywood density is determined by tracheid size and latewood density by wall dimensions, reflecting their different functional tasks. To determine general patterns of variability, density parameters from 27 species and 349 sites across the Northern Hemisphere were correlated to tree-ring width parameters and local climate. We performed the same analyses with density and width derived from anatomical data comprising two species and eight sites. The contributions of tracheid size and wall dimensions to density were disentangled with sensitivity analyses. Notably, correlations between density and width shifted from negative to positive moving from earlywood to latewood. Temperature responses of density varied intraseasonally in strength and sign. The sensitivity analyses revealed tracheid size as the main determinant of earlywood density, while wall dimensions become more influential for latewood density. Our novel approach of integrating detailed anatomical data with large-scale tree-ring data allowed us to contribute to an improved understanding of interannual variations of conifer growth and to illustrate how conifers balance investments in the competing xylem functions of hydraulics and mechanical support.

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Swiss Fed Inst Forest Snow & Landscape Res WSL, Zuercherstr 111, CH-8903 Birmensdorf, Switzerland.
Univ Gothenburg, Dept Earth Sci, Gothenburg Univ, Lab Dendrochronol, Guldhedsgatan 5a, S-40530 Gothenburg, Sweden.
Catholic Univ Louvain, Georges Lemaitre Ctr Earth & Climate Res, Earth & Life Inst, Pl Louis Pasteur, B-1348 Louvain La Neuve, Belgium.
Inst Environm Sci, Climat Change & Climate Impacts, 66 Blvd Carl Vogt, CH-1205 Geneva, Switzerland.
VN Sukachev Inst Forest SB RAS, Akad Gorodok 50,Bld 28, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Svobodny Pr 79, Krasnoyarsk 660041, Russia.
Univ Padua, Dept TeSAF, Via Univ 16, I-35020 Legnaro, PD, Italy.
Univ Arizona, Tree Ring Res Lab, 1215 E Lowell St, Tucson, AZ 85721 USA.

Доп.точки доступа:
Bjorklund, Jesper; Seftigen, Kristina; Schweingruber, Fritz; Fonti, Patrick; von Arx, Georg; Bryukhanova, Marina V.; Cuny, Henri E.; Carrer, Marco; Castagneri, Daniele; Frank, David C.; von, Georg; Swiss National Science Foundation [iTREE CRSII3_136295, P300P2_154543]; Russian Science Foundation [14-14-00219-p]; Swiss National Science Foundation (CLIMWOOD) [160077]; Swiss National Science Foundation (LOTFOR) [150205]; Swiss State Secretariat for Education, Research and Innovation SERI [SBFI C14.0104]

/ E. A. Tyutkova, O. A. Shapchenkova, S. R. Loskutov // Khimiya Rastitel'nogo Syr'ya. - 2017. - Is. 2. - С. 89-100, DOI 10.14258/jcprm.2017021389 . - ISSN 1029-5151
Аннотация: The thermal decomposition of tree rings (separately, latewood and earlywood) of Larix gmelinii (Rupr.) Rupr.) during the period from 1988 to 1998 was studied using thermogravimetric analysis (TG / DTG) and differential scanning calorimetry (DSC). Thermal analysis was performed in oxidizing (air) condition. The stages of thermal decomposition of wood were analyzed by heating the sample from 30 to 700 °C at the heating rates of 10, 20, 40 °C/min for TG / DTG and from 30 to 590 °C at the heating rates of 10, 40 °C/min for DSC. The temperature ranges, mass loss, mass loss rate, temperature DTG / DSC peaks, thermal evaporation effects of moisture and the processes of thermal decomposition for each annual layer were studied. The result of thermogravimetry measurements were carried out using the Broido and Ozawa – Flynn – Wall methods. Tree rings of larch wood on the basis of the analysis of the activation energy values of the individual stages of thermal decomposition and activation energy dependency on the degree of conversion of wood material different tree rings; and based on the comparison of the mass loss for corresponding stages of thermal destruction, thermal effects, and other parameters of TG / DSC and DTG were characterized. The material presented in the study would, in our view, to study the impact of growing conditions on wood physical properties and chemical composition of wood, which are the basis for determining the direction of ways to use it, as well as indicators of the reaction of wood plants on endogenous and exogenous conditions.

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V.N. Sukachev Institute of Forest, Russian Academy of Sciences, Siberian Branch, ul. Akademgorodok, 50/28, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Tyutkova, E. A.; Shapchenkova, O. A.; Loskutov, S. R.

/ V. V. Fakhrutdinova, V. E. Benkova, A. V. Shashkin // BIOLOGY BULLETIN. - 2017. - Vol. 44, Is. 6. - С. 634-642, DOI 10.1134/S1062359017050089 . - ISSN 1062-3590. - ISSN 1026-3470
Аннотация: The results of comparative analysis of tree-ring anatomical structure in the trunk of Larix gmelinii (Rupr.) Rupr. growing in the forest-tundra ecotone in the north of Middle Siberia in contrasting hydrothermal conditions of permafrost soils are discussed. It is found that the best soil hydrothermal conditions affected the formation of relatively large tracheids in earlywood and latewood during the whole period investigated. Current climate warming has caused a positive trend in annual changes in the cellular characteristics in trees growing in relatively favorable soil conditions and has not caused observable changes in trees growing in adverse conditions. The wood anatomy structure of the water-conducting (earlywood) zone in the tree ring in favorable conditions is determined by the weather of late May and June, and in adverse conditions it is determined by the weather in late April and May.

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Russian Acad Sci, Sukachev Inst Forest, West Siberian Branch,Siberian Branch, Dept Fed Res Ctr,Krasnoyarsk Sci Ctr, Novosibirsk 630082, Russia
Russian Acad Sci, Sukachev Inst Forest, Krasnoyarsk Sci Ctr, Siberian Branch,Fed Res Ctr, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Fakhrutdinova, V. V.; Benkova, V. E.; Shashkin, A. V.

/ A. Arzac [et al.] // Dendrochronologia. - 2018. - Vol. 49. - P1-8, DOI 10.1016/j.dendro.2018.02.007 . - ISSN 1125-7865
Аннотация: Climate affects wood formation with consequences for the functioning and survival of trees. Since tree-rings tissues (i.e., earlywood and latewood) are formed at different time in the season, the impact of climate change might differently affect their functions. In this study, we combine quantitative tracheid anatomy with the Vaganov-Shashkin growth model (VS-model) to investigate how summer drought affected the annual ring structure of Pinus sylvestris L. from a forest-steppe zone in Southern Siberia. In particular, we used climate-growth relationships over a 50-year period to identify the timing of climatic signal of early-, transition-, and late-wood tracheid's diameters (DEW, DTW and DLW). Corresponding daily growth rates (Gr) obtained by the VS-model were applied to calculate the changes in the width of the relative tree-ring sectors considering different levels of aridity. Results indicate that tracheid size is sensitive to drought with temporal shifts among the climatic signal of DEW (in May), DTW (June) and DLW (July). A comparison of modeled daily-growth rate cumulated over the climatic window of each ring sector and grouped by years with different level of aridity, indicated that a release of summer drought mostly affected the widths of the transition (+28.1%) and (+48.6%) latewood sectors, thus matching observations performed on the same cores. These results suggest that current changes in climate seasonality, as occurring in the selected area, are positively impacting both the hydraulic efficiency (by increasing the diameter of the earlywood cells) and the latewood width of the wood produced in the area. © 2018 Elsevier GmbH

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Держатели документа:
Siberian Federal University, 79 Svobodny pr., Krasnoyarsk, Russian Federation
Khakass Technical Institute, Siberian Federal University, 27 Shchetinkina St., Abakan, Russian Federation
Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Zuercherstrasse 111, Birmensdorf, Switzerland
V. N. Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences, Akademgorodok 50/28, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Arzac, A.; Babushkina, E. A.; Fonti, P.; Slobodchikova, V.; Sviderskaya, I. V.; Vaganov, E. A.

/ E. A. Babushkina [et al.] // Dendrochronologia. - 2019. - Vol. 53. - P114-124, DOI 10.1016/j.dendro.2018.12.003 . - ISSN 1125-7865
Аннотация: Wood anatomy was offered as spatiotemporal proxy record for tracheid differentiation kinetics due to its advantages in terms of much longer cover period and less demanding measurements. In this study, external and internal regulation of earlywood-to-latewood transition and properties of latewood of Picea obovata Ledeb were considered. The values and interrelations between cell number, tree ring width, maximal and mean radial cell diameter, maximal cell wall thickness and position of the transition to thick-walled tracheids were investigated within site and along the altitudinal gradient. Correlations with moving 21-day climatic series were used to estimate high-resolutional external influences. Relationships between tree ring traits are spatially stable and close within one stage of differentiation and between cells production and expansion. Relationships between sites differ in upper and lower parts of the gradient. Most of traits respond to the primary limiting factors near summer solstice; however, maximal cell wall thickness responds positively to the temperatures at the + 10 °C threshold. Altitudinal anatomical patterns revealed interaction of intrinsic and external factors in the regulation of tracheid differentiation. Timing of climatic response highlighted role of photoperiod as a trigger in the earlywood-to-latewood transition, and crucial role of the growth season ending for latewood development. © 2018 Elsevier GmbH

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Держатели документа:
Khakass Technical Institute, Siberian Federal University, 27 Shchetinkina, Abakan, 655017, Russian Federation
Siberian Federal University, 79 Svobodny, Krasnoyarsk, 660041, Russian Federation
Sukachev Institute of Forest, Siberian Branch of the Russian Academy of Sciences, 50/28 Akademgorodok, Krasnoyarsk, 660036, Russian Federation

Доп.точки доступа:
Babushkina, E. A.; Belokopytova, L. V.; Zhirnova, D. F.; Vaganov, E. A.

/ E. A. Tyutkova, S. R. Loskutov, N. P. Shestakov // Wood Mater. Sci. Eng. - 2019, DOI 10.1080/17480272.2018.1562495 . - Article in press. - ISSN 1748-0272
Аннотация: This paper presents the results of FTIR spectroscopy of the 1988–1998 annual ring early and latewood of Larix gmelinii (Rupr.) Rupr.) found along the polar treeline (Taimyr Peninsula, 70°52?53? N, 102°58?26? E). We analyzed samples of early and latewood to identify absorption bands of groups of wood components, as well as the bands that characterized the interactions among the components. We studied bound water spectral characteristics for wood formed in different years. An analysis of the correlation between the values of spectral absorption bands and mean monthly air temperature and precipitation showed that May-August weather had the greatest influence on the synthesis of the main polymeric components of early and latewood. Air temperature had a considerable effect on polymer composition of cell walls forming in early and latewood, whereas precipitation influenced only earlywood. FTIR spectroscopy is a promising tool to develop information on the biochemical composition of the walls of early and late tracheids of annual rings and on weather and climate influences on cell wall synthesis. © 2018, © 2019 Informa UK Limited, trading as Taylor & Francis Group.

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V.N. Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Tyutkova, E. A.; Loskutov, S. R.; Shestakov, N. P.

/ G. F. Antonova [et al.] // Wood Sci Technol. - 2019. - Vol. 53, Is. 4. - P927-952, DOI 10.1007/s00226-019-01108-w . - ISSN 0043-7719
Аннотация: Lignification of earlywood and latewood during annual ring formation in Scots pine stem in the season occurs with opposite dynamics. The subject of this study was to examine the structure of lignin deposited at successive stages of secondary cell wall maturation of these two wood types. Lignin specimens derived from developing cells by the thioglycolic acid were analyzed by the methods of alkaline oxidation, alkaline and acid hydrolysis and IR Fourier spectroscopy. The composition of lignin structural subunits was found to change at each stage of lignification in dependence of the forming wood type. The molar ratio of p-hydroxyphenyl, guaiacyl and syringyl subunits in polymer was modified in earlywood and latewood oppositely. In the course of earlywood cell maturation, syringyl subunits in lignin increased in parallel with p-hydroxyphenyl units. During latewood lignification, syringyl and p-hydroxyphenyl subunits in lignin structure decreased, whereas guaiacyl subunits increased as secondary cell wall maturation. In lignin isolated from both wood types, the ether-bound carbohydrates were more than by an order of magnitude of ester-bound carbohydrates. In early xylem, the content of ether-bound carbohydrates practically did not change during lignin deposition, whereas carbohydrates with ester linkages gradually decreased toward mature xylem. Lignification in latewood was accompanied by the decline of both ester-linked and ether-linked carbohydrates with a sharp increase in the latter in mature xylem. Hemicelluloses, included in such bonds, contained mainly the residues of xylose and arabinose. The composition and the content of hydroxycinnamic acids, taking part in these linkages, also changed in dependence of lignification steps and wood type. The data received are in agreement with the alterations in absorption IR spectra of lignins isolated from the cells at the beginning of lignification and mature xylem. The reasons for the differences in the lignin structure during earlywood and latewood development are discussed. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.

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Держатели документа:
VN Sukachev Institute of Forest, SB RAS Akademgorodok, Krasnoyarsk, 660036, Russian Federation
Institute of Solid State Physics RAS, 2 Academician Ossipyan Str., Chernogolovka, Moscow District, 142432, Russian Federation

Доп.точки доступа:
Antonova, G. F.; Varaksina, T. N.; Zheleznichenko, T. V.; Bazhenov, A. V.