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

/ N.E. Sudachkova, I.L. Milyutina, L.I. Romanova, G.P. Semenova // Eurasian Journal of Forest Research. - 2004. - Vol. 7-1. - С. 1-10

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

Доп.точки доступа:
Sudachkova, Nina Yevgen'yevna; Судачкова, Нина Евгеньевна; Milyutina, Inna Leonidovna; Милютина, Инна Леонидовна; Romanova, Lyudmila Ivanovna; Романова, Людмила Ивановна; Semenova, Galina Pavlovna; Семенова, Галина Павловна

[Текст] = Ecological and biochemical aspect of enzime activities of glutamic acid in cambial zone of pinus sylvestris under phytocenotic stress : материалы временных коллективов / К. О. Дейч // Исследование компонентов лесных экосистем Сибири: Материалы конференции молодых ученых, 5-6 апреля 2012 г. , Красноярск. - Красноярск : Институт леса им. В.Н. Сукачева СО РАН , 2012. - Вып.13. - С. 9-11. - Библиогр.: 4 назв.
Аннотация: The 6-7 aged biogroups of pine trees (Pinus sylvestris L.) with density 1, 10 and 40 tree*m-2 were investigated. It was shown that an increase in density causes a decrease in the linear and radial sizes of trees and changes dynamic and level of enzymes activity of y-aminobutyric and glutamic acids metabolism. The revealed specific change of dynamic of y-aminobutyric acid can be used as biochemical indicator of phytocenotic stress.

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

Доп.точки доступа:
Deych K.O.

/ N. D. Sorokin, E. N. Afanasova // Biol. Bull. - 2012. - Vol. 39, Is. 1. - P85-92, DOI 10.1134/S1062359012010086. - Cited References: 22. - This work was supported by the Russian Academy of Sciences, integrational project SO RAS no. 27.3 "Successional changes of the biodiversity in technogenically disturbed ecosystems of Siberia." . - 8. - ISSN 1062-3590РУБ Biology

Аннотация: It is shown that the diagnostics of the stage of woodland soils affected by wildfires and forest cuts can be determined by the evaluation indexes of the range of the scale of abundance of typical ecologic-and-trophic groups of microorganisms (ECTGM), microbiological activity coefficients, reserve and abundance fluctuations, and metabolism. The degree of impact of the technogenic emissions on the forest cover, soil, and phyllosphere according to ECTGM abundance on the diagnostic environments and their fermentative activity is expressed with the help of an advisability functional relation.

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Держатели документа:
[Sorokin, N. D.] Russian Acad Sci, Siberian Branch, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
[Afanasova, E. N.] Siberian Fed Univ, Krasnoyarsk 660074, Russia

Доп.точки доступа:
Sorokin, N.D.; Afanasova, E.N.

[Text] / G. F. Antonova, T. V. Zheleznichenko, V. V. Stasova // Russ. J. Dev. Biol. - 2011. - Vol. 42, Is. 4. - P238-246, DOI 10.1134/S1062360411020032. - Cited References: 48. - This work was supported by the Russian Foundation for Basic Research, project no. 06-04-49501. . - 9. - ISSN 1062-3604РУБ Developmental Biology

Аннотация: The content and composition of alcohol soluble phenolic acids (PhAs) were studied during cell xylem growth in course of wood annual increment formation in the trunks of Scots pine. Cells of the cambium zone, two stages of expansion growth, and outset of secondary thickening zone (before lignification) within the period of formation of early wood xylem were subsequently isolated from trunk segments of 25-year-old trees with constant anatomical and histochemical control. The amount of free and bound forms of phenolic acids extracted from tissues by 80% ethanol, as well as their ethers and esters, were calculated both per dry weight and per cells. The substantial alteration in content, proportion of fractions and composition of acids has been found between the cambium zone and the outset of secondary thickening of tracheids, and the character of variation depended on the calculation method. The amount of free and bound PhAs and esters and especially ethers calculated per cell had increased at the first stage of extension growth, reduced at the second, and increased in the outset of secondary wall deposition. The pool of bound acids was more than acids by 2-5 times depending on the stage of development of the cells. Sinapic and ferulic acids dominate among free hydroxycinnamic acids. The composition and the content of hydroxycinnamic acids in esters and ethers also depended on the stage of development of the cells. p-Coumaric and sinapic acids were the main aglycons in ethers in the cambium and sinapic and caffeic acids were in the other stages. The esters from cambium included mostly p-coumaric acid and those at other stages of development were sinapic and ferulic acids. The esters included benzoic acid at the first stages of growth. The pool of these esters decreased from the first phase of growth until the outset of cell wall thickening. The level of free benzoic acid increased respectively.

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

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

[Text] / S. . Mori [et al.] // Proc. Natl. Acad. Sci. U. S. A. - 2010. - Vol. 107, Is. 4. - P1447-1451, DOI 10.1073/pnas.0902554107. - Cited References: 48. - We thank K. Kikuzawa, K. Hozumi, J. H. Brown, and two anonymous reviewers for helpful comments and discussions regarding the manuscript, and the Forestry Technology Center of the Tohoku Regional Forest Office of the Japan Forestry Agency for field support. This research was partially supported by the Japan Ministry of Education, Culture, Sports, Science and Technology (MEXT) Grant-in-Aid Scientific Research (B) 18380098 (FY2006-2008), the Japan Ministry of Environment Project B-2 (FY1997-2000), and the Japan Forestry and Forest Products Research Institute Research Grant 200608 (FY1996-2010). . - 5. - ISSN 0027-8424РУБ Multidisciplinary Sciences

Аннотация: The scaling of respiratory metabolism with body mass is one of the most pervasive phenomena in biology. Using a single allometric equation to characterize empirical scaling relationships and to evaluate alternative hypotheses about mechanisms has been controversial. We developed a method to directly measure respiration of 271 whole plants, spanning nine orders of magnitude in body mass, from small seedlings to large trees, and from tropical to boreal ecosystems. Our measurements include the roots, which have often been ignored. Rather than a single power-law relationship, our data are fit by a biphasic, mixed-power function. The allometric exponent varies continuously from 1 in the smallest plants to 3/4 in larger saplings and trees. Therefore, our findings support the recent findings of Reich et al. [Reich PB, Tjoelker MG, Machado JL, Oleksyn J (2006) Universal scaling of respiratory metabolism, size, and nitrogen in plants. Nature 439: 457-461] and West, Brown, and Enquist [West GB, Brown JH, Enquist BJ (1997) A general model for the origin of allometric scaling laws in biology. Science 276: 122 - 126.]. The transition from linear to 3/4-power scaling may indicate fundamental physical and physiological constraints on the allocation of plant biomass between photosynthetic and nonphotosynthetic organs over the course of ontogenetic plant growth.

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Держатели документа:
[Mori, Shigeta
Ishida, Atsushi
Nishizono, Tomohiro
Kajimoto, Takuya
Matsuura, Yojiro
Toma, Takeshi
Awaya, Yoshio
Araki, Masatake G.
Kawasaki, Tatsuro
Chiba, Yukihiro] Forestry & Forest Prod Res Inst, Tsukuba, Ibaraki 3058687, Japan
[Yamaji, Keiko] Univ Tsukuba, Tsukuba, Ibaraki 3058571, Japan
[Prokushkin, Stanislav G.
Masyagina, Oxana V.] VN Sukachev Inst Forest SB RAS, Krasnoyarsk 660036, Russia
[Hagihara, Akio
Hoque, A. T. M. Rafiqul
Suwa, Rempei
Zyryanova, Olga A.
Abaimov, Anatoly P.] Univ Ryukyus, Nishihara, Okinawa 9030213, Japan
[Osawa, Akira] Kyoto Univ, Kyoto 6068502, Japan
[Ueda, Tatsushiro] Dalton Co Ltd, Sapporo, Hokkaido 0600808, Japan
[Kinjo, Masaru
Miyagi, Tsuyoshi] Okinawa Prefectural Forest Resources Res Ctr, Nago 9050017, Japan
[Koike, Takayoshi] Hokkaido Univ, Sapporo, Hokkaido 0608689, Japan
[Umari, Marjnah] Mulawarman Univ, Kota Samarinda 75119, Indonesia

Доп.точки доступа:
Mori, S...; Yamaji, K...; Ishida, A...; Prokushkin, S.G.; Masyagina, O.V.; Hagihara, A...; Hoque, ATMR; Suwa, R...; Osawa, A...; Nishizono, T...; Ueda, T...; Kinjo, M...; Miyagi, T...; Kajimoto, T...; Koike, T...; Matsuura, Y...; Toma, T...; Zyryanova, O.A.; Abaimov, A.P.; Абаимов Анатолий Платонович; Awaya, Y...; Araki, M.G.; Kawasaki, T...; Chiba, Y...; Umari, M...

[Text] / C. . Blodau [et al.] // J. Geophys. Res.-Biogeosci. - 2008. - Vol. 113, Is. G3. - Ст. G03023, DOI 10.1029/2007JG000652. - Cited References: 45. - The support of the Deutsche Forschungsgemeinschaft (DFG) and of the German Ministry of Science and Education (BMBF) to H. Flessa, G. Guggenberger, and C. Blodau is gratefully acknowledged. We thank Martina Heider for laboratory assistance, Pjotr Karas and Alexander Tiunov for all their help with field work, and Swetlana Poljuhova (Field Station Igarka of the Permafrost Institute Yakutsk) for excellent laboratory analyses and help with respect to logistics. . - 8. - ISSN 0148-0227РУБ Environmental Sciences + Geosciences, Multidisciplinary

Аннотация: Thermokarst wetlands and ponds in the subarctic, which are located in land surface depressions resulting from permafrost melt, are strong sources of CH4, but little is known about respiration processes supporting these emissions. We determined CH4 fluxes and concentration profiles of dissolved gases and anions and some delta C-13 ratios of CO2 and CH4 in a thermokarst pond and adjacent smaller thermokarst depressions in the forest tundra near Igarka, northern Siberia in August 2006. Methane was emitted at 110-170 mg m(-2) d(-1) and produced mostly by CO2 reduction, which also provided high Gibbs free energies on the order of 50-70 KJ mol(-1) H-2 due to high H-2 concentrations. The diffusive flux calculated from CH4 gradients in the floating mat contributed 2% to emissions. CH4 was apparently not oxidized deeper than 20 cm into the floating mat and the water body below. Anaerobic respiration required to reproduce nonsteady state CO2 concentration maxima in the floating mat above the water body was 30-80 nmol cm(-3) d(-1) or 250 mg m(-2) d(-1) and thus on a similar order of magnitude as CH4 fluxes. The results suggest that floating mat-covered thermokarst ponds located in northern Siberian bogs effectively convert recently fixed carbon into CH4 and thus allow for emissions independently from the finite, bog-derived carbon source. The relative contribution of recently fixed and old bog-derived carbon to C fluxes requires further investigation, however.

Держатели документа:
[Blodau, Christian
Rees, Rainer
Knorr, Klaus-Holger] Univ Bayreuth, Limnol Res Stn, D-95440 Bayreuth, Germany
[Blodau, Christian
Rees, Rainer
Knorr, Klaus-Holger] Univ Bayreuth, Dept Hydrol, D-95440 Bayreuth, Germany
[Flessa, Heiner] Univ Gottingen, Buesgeninst, D-37077 Gottingen, Germany
[Rodionov, Andrej
Guggenberger, Georg] Univ Halle Wittenberg, Inst Agr & Nutr Sci, D-06108 Halle, Germany
[Shibistova, Olga
Zrazhevskaya, Galina
Mikheeva, Natalia] SB RAS, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia
[Kasansky, Oleg A.] SB RAS, Permafrost Inst Yakutsk, Field Stn Igarka, Igarka 663200, Russia

Доп.точки доступа:
Blodau, C...; Rees, R...; Flessa, H...; Rodionov, A...; Guggenberger, G...; Knorr, K.H.; Shibistova, O...; Zrazhevskaya, G...; Mikheeva, N...; Kasansky, O.A.

[Text] / I. D. Grodnitskaya, N. D. Sorokin // Eurasian Soil Sci. - 2004. - Vol. 37, Is. 8. - P824-829. - Cited References: 21 . - 6. - ISSN 1064-2293РУБ Soil Science

Аннотация: New data on the structure, dynamics, and functioning of microbiological complexes in deep peat soils of Western Siberia are obtained. The highest population densities of microorganisms are registered in the zone of active peat accumulation with oxidizing conditions (I-Ox, 0-10 cm), in the zone with alternating reducing and oxidizing conditions (IIOx-Red, 50-100 cm), in the zone with permanently reducing conditions (IIIRed1, 250-350 cm), and in the zone with sharply reducing conditions (IVRed2, 550-675 cm). The oxidative type of microbial metabolism initiated by aerobic and facultative anaerobic microorganisms of the heterotrophic cycle is typical of the studied low-moor peat soils.

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Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Grodnitskaya, I.D.; Sorokin, N.D.

[Text] / I. N. Tretyakova, N. V. Novoselova, Y. A. Cherepovskii // Russ. J. Plant Physiol. - 2004. - Vol. 51, Is. 1. - P120-126, DOI 10.1023/B:RUPP.0000011312.64979.0d. - Cited References: 12 . - 7. - ISSN 1021-4437РУБ Plant Sciences

Аннотация: Morphological and cytoembryological studies of unique forms of Siberian pine (Pinus sibirica Du Tour) with the annual cycle of ovulate cone development were carried out. The morphogenesis of female shoots in these anomalous trees with the annual cycle of development was shown to provide for an accelerated development and very rapid growth of megastrobili and accelerated formation of reproductive structures. Cytoembryological studies of ovules in these trees showed significant shortening of the free-nuclear stage of gametophyte development (up to 3 weeks instead of one year) and ultra-early formation of archegonia and egg cells. However, no fertilization of egg cells and the development of embryos occur in the anomalous forms; the egg-cell nucleus divides in the haploid state. Developing seeds are formed without embryo. The author hypothesizes that the acceleration of embryo development in the anomalous pine trees is caused by enhanced hormonal, carbohydrate, and nitrogen metabolism in ovule tissues.

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Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Tretyakova, I.N.; Novoselova, N.V.; Cherepovskii, Y.A.

[Text] / T. A. Vshivkova // Biol. Bull. - 2003. - Vol. 30, Is. 5. - P476-481, DOI 10.1023/A:1025846502636. - Cited References: 27 . - 6. - ISSN 1062-3590РУБ Biology

Аннотация: Food energy expenditures by gypsy moth at different developmental stages under conditions of feeding on larch needles are described. The distribution of total food energy (%) for metabolism, the formation of exuvia (throughout ontogeny), and the formation of an adult insect is assessed. The proportion of food energy lost with excrements over the entire period of feeding is the same (58%) in females and males. The assimilated part of food energy is distributed differently: energy expenditures for the formation of exuvia and adult insects are greater in females than in males. The proportion of food energy expended for metabolism throughout the insect life span is approximately 30% in both females and males.

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Держатели документа:
Russian Acad Sci, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Vshivkova, T.A.

[Text] / I. V. Shein [et al.] // Russ. J. Plant Physiol. - 2003. - Vol. 50, Is. 5. - P634-639, DOI 10.1023/A:1025688023862. - Cited References: 27 . - 6. - ISSN 1021-4437РУБ Plant Sciences

Аннотация: Pine (Pinus sylvestris L.) callus culture was treated with the mycelium extracts from six Fusarium strains. Previously, pine seedlings were infected with a spore suspension in order to test the pathogenicity of the used strains. Callus culture infection resulted in a decrease in the free proanthocyanidin (PA) and an increase in bound PA content. After treating the calli with all strains except F. oxysporum var. orthoceras, the lignin content became lower than the control one. The most considerable changes involved the p-hydroxybenzoic acid (HBA) content, and its greatest change was observed after treating the calli with F. nivale, when the HBA concentration (1229 mug/g, dry wt) exceeded fourfold the control one. There was a positive correlation (R = 0.81) between the HBA content in the callus culture cells treated with a fungal extract and the virulence of Fusarium strains. At the same time, there was an inverse correlation (R = -0.80) between the lignin content in a callus culture and the fungal virulence; the latter did not affect the contents of both free and bound PA.

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Держатели документа:
Russian Acad Sci, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia
Ctr Forest Def Krasnoyarsk Krai, Krasnoyarsk, Russia

Доп.точки доступа:
Shein, I.V.; Andreeva, O.N.; Polyakova, G.G.; Zrazhevskaya, G.K.

[Text] / I. V. Shein [et al.] // Russ. J. Plant Physiol. - 2003. - Vol. 50, Is. 4. - P516-521, DOI 10.1023/A:1024776924788. - Cited References: 24 . - 6. - ISSN 1021-4437РУБ Plant Sciences

Аннотация: Twelve-day-old seedlings of Scots pine (Pinus sylvestris L.) were infected with a virulent spore suspension of the fungus Fusarium sporotrichiella var. sporotrichioides Bilai. 72 h after infection, the seedlings were divided into infection-susceptible and infection-resistant ones, and phenolic compounds in the seedling hypocotyls were analyzed. Susceptible seedlings contained 4.3-fold less lignins, 1.4-fold less free and bound proanthocyanidins, 12.7-fold less free hydroxybenzoic acids, 56.6-fold less bound hydroxybenzoic acids, 2-fold less quinic acid, and 5.1-fold less shikimic acid as compared to the resistant seedlings. At the same time, L-phenylalanine content was increased 3-fold and that of L-tyrosine, 1.3-fold. The activity of quinate:NAD(P)(+) oxidoreductase and L-phenylalanine ammonia-lyase in the hypocotyls of susceptible seedlings was 2.3-fold and 1.4-fold lower, respectively, whereas the activity of shikimate:NAD(P)(+) oxidoreductase remained unchanged.

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Держатели документа:
Russian Acad Sci, Siberian Div, Sukachev Inst Forestry, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Shein, I.V.; Shibistova, O.B.; Zrazhevskaya, G.K.; Astrakhantseva, N.G.; Polyakova, G.G.

[Text] / I. N. Tret'yakova [et al.] // Russ. J. Plant Physiol. - 2009. - Vol. 56, Is. 5. - P647-653, DOI 10.1134/S1021443709050100. - Cited References: 35. - This work was supported by the Russian Foundation for Basic Research, project no. 06-04-08040-ofi. . - 7. - ISSN 1021-4437РУБ Plant Sciences

Аннотация: Androgenesis in vitro in plants is a phenomenon of developmental switching of male generative cells, microspores, from their normal gametophytic to sporophytic pathway. We obtained androgenic callus and embryoids (embryo-like structures derived from microspores) of the conifer plant, Siberian larch (Larix sibirica Ledeb.) in the in vitro culture. The immune-enzyme analysis of the hormonal balance of larch androgenic cultures showed a substantial increase in the content of all phytohormones, especially cytokinins and ABA, as compared with initial explants (microstrobiles). This was evidently related to active cell divisions and embryoid formation. A comparison of androgenic cultures derived from trees nonifested and infested with larch gall midges (Dasineura rozhkovi Main. et Nik.) revealed a cytokinin content increase (by two times) and an ABA content decrease (by two times), which indicates more intense growth of cultures derived from healthy trees. Phytohormone content in the androgenic callus was compared with their accumulation in the embryos of larch seeds harvested from noninfested trees. We concluded that successful growth of androgenic cultures and embryoid formation demand an additional medium supplement with auxins (not more than 0.5 mg/l).

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[Tret'yakova, I. N.
Ivanitskaya, A. C.
Barsukova, A. V.] Russian Acad Sci, Sukachev Inst Forestry, Siberian Div, Krasnoyarsk 660036, Russia
[Ivanova, A. N.] Siberian Fed Univ, Krasnoyarsk, Russia

Доп.точки доступа:
Tret'yakova, I.N.; Ivanitskaya, A.C.; Ivanova, A.N.; Barsukova, A.V.; Russian Foundation for Basic Research [06-04-08040-ofi]

[Text] / G. F. Antonova, V. V. Stasova, T. N. Varaksina // Russ. J. Plant Physiol. - 2009. - Vol. 56, Is. 2. - P190-199, DOI 10.1134/S1021443709020071. - Cited References: 30. - This work was supported by the Russian Foundation for Basic Research, project no. 06-04-49501. . - 10. - ISSN 1021-4437РУБ Plant Sciences

Аннотация: Changes in the levels of ascorbic acid (AA), its oxidized form, dehydroascorbic acid (DHA), and uronic acids as initial precursors for the AA synthesis were studied as related to the degree of xylem and phloem cell development in the course of early and late wood formation in the trunks of Scots pine (Pinus sylvestris L.). The cells of mature and conducting phloem, cambial zone, differently developed cells in the zones of cell enlargement and maturation were obtained by successive scraping tissue layers from trunk segments of 20-25-year-old trees; tissue identification was checked anatomically and histochemically. The contents of compounds tested were calculated per dry weight and per cell basis. We found great differences in the contents of AA and DHA and also in their ratio in dependence of the wood type developing in the pine trunks during growth period and on the stage of differentiation of xylem and phloem cells. Changes in the AA content during xylem cell differentiation were accompanied by changes in the content of uronic acids. The amounts of AA, DHA, and uronic acids were the highest at the stage of early lignification and reduced with tracheid maturation. The AA to DHA ratio changed differently in the course of early and late xylem lignification. It reduced from the start of lignification to the formation of early mature xylem and, in contrast, increased in mature late wood; this indicates a difference in the level of redox processes in these tissues.

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Держатели документа:
[Antonova, G. F.
Stasova, V. V.
Varaksina, T. N.] Russian Acad Sci, Sukachev Inst Forest, Siberian Div, Akad Gorodok, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Antonova, G.F.; Stasova, V.V.; Varaksina, T.N.; Russian Foundation for Basic Research [06-04-49501]

[Text] / K. Y. Biel [et al.] // Protoplasma. - 2010. - Vol. 245, Is. 01.04.2013. - P49-73, DOI 10.1007/s00709-010-0135-7. - Cited References: 136. - Supported in part by the Competitive Research Grants Office, U.S. Department of Agriculture (Grant Nos. 96-35100-3167 and 98-35100-6106 to JNN). IRF and GNN were supported by Sr. Fulbright Scholar Awards. Thanks to Professors Andrew A. Benson (Scripps Institute of Oceanography, La Jolla, California, USA), Edwin A. Cossins (University of Alberta, Edmonton, Canada), and William H. Outlaw, Jr. (Florida State University, Tallahassee, Florida, USA) for the valuable comments on the manuscript, and to Vincent R. Franceschi (Electron Microscopy Center, Washington State University, Pullman, Washington, USA; deceased) for useful discussions about calcium oxalate. Portions of the work were preliminarily reported (Bil' et al. 2003a, b) . - 25. - ISSN 0033-183XРУБ Plant Sciences + Cell Biology

Аннотация: The localization of the key photoreductive and oxidative processes and some stress-protective reactions within leaves of mesophytic C(3) plants were investigated. The role of light in determining the profile of Rubisco, glutamate oxaloacetate transaminase, catalase, fumarase, and cytochrome-c-oxidase across spinach leaves was examined by exposing leaves to illumination on either the adaxial or abaxial leaf surfaces. Oxygen evolution in fresh paradermal leaf sections and CO(2) gas exchange in whole leaves under adaxial or abaxial illumination was also examined. The results showed that the palisade mesophyll is responsible for the midday depression of photosynthesis in spinach leaves. The photosynthetic apparatus was more sensitive to the light environment than the respiratory apparatus. Additionally, examination of the paradermal leaf sections by optical microscopy allowed us to describe two new types of parenchyma in spinach-pirum mesophyll and pillow spongy mesophyll. A hypothesis that oxaloacetate may protect the upper leaf tissue from the destructive influence of active oxygen is presented. The application of mathematical modeling shows that the pattern of enzymatic distribution across leaves abides by the principle of maximal ecological utility. Light regulation of carbon metabolism across leaves is discussed.

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[Nishio, John N.] Calif State Univ Chico, Biocompatible Plant Res Inst, Coll Nat Sci, Chico, CA 95929 USA
[Biel, Karl Y.
Fomina, Irina R.
Nazarova, Galina N.] Russian Acad Sci, Inst Basic Biol Problems, Pushchino 142290, Moscow Region, Russia
[Biel, Karl Y.
Fomina, Irina R.] Biosphere Syst Int Fdn, Oro Valley, AZ 85755 USA
[Soukhovolsky, Vladislav G.
Khlebopros, Rem G.] Russian Acad Sci, Int Sci Ctr Organism Extreme States Res, Krasnoyarsk Sci Ctr, Siberian Branch, Krasnoyarsk 660036, Russia
[Soukhovolsky, Vladislav G.] Russian Acad Sci, Inst Forest, Siberian Branch, Krasnoyarsk 660036, Russia
[Khlebopros, Rem G.] Russian Acad Sci, Inst Biophys, Siberian Branch, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Biel, K.Y.; Fomina, I.R.; Nazarova, G.N.; Soukhovolsky, V.G.; Khlebopros, R.G.; Nishio, J.N.

[Text] / V. . OSSIPOV [et al.] // Trees-Struct. Funct. - 1995. - Vol. 10, Is. 1. - P46-51. - Cited References: 0 . - 6. - ISSN 0931-1890РУБ Forestry

Аннотация: Quinate:NAP(P)(+)-oxidoreductase (QORase, EC 1.1.1.24), which catalyzes the interconversion of quinic and 3-dehydroquinic acids, was purified from the needles and developing xylem cells of Larix sibirica. The enzymes from these two tissues were partially characterized and compared. QORase from needles had optimum pH at 9.0 and apparent K-m values of 1.84 mM for quinic acid and 0.19 mM for NADP(+). The enzyme was activated by phosphoenolpyruvate. Gallic and protocatechuic acids were formed in a reaction mixture of purified enzyme from needles as final products of quinic acid transformation. QORase from developing xylem cells showed pH optimum at 10.0 and had apparent K-m values of 0.70 mM for quinic acid and 0.05 mM for NADP(+). The enzyme was not affected by PEP. The divalent cations Co2+ and Mn2+ at least doubled activity of QORase from both sources but Mg2+ affected the enzyme from needles only. The spatial organization and regulation of quinic acid metabolism in the autotrophic and heterotrophic cells of conifers and the role of QORase in this process are discussed.

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INST FORESTRY,ECOL BIOCHEM WOODY PLANTS LAB,KRASNOYARSK 660036,RUSSIA

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OSSIPOV, V...; CHERNOV, A...; ZRAZHEVSKAYA, G...; SHEIN, I...

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Держатели документа:
Sukachev Institute of Forest, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Moscow State University, Moscow, Russian Federation
Max Planck Institute for Terrestrial Microbiology, Marburg, Germany

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Держатели документа:
Institute of Biophysics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Forestry, Siberian Branch, Russian Academy of Sciences, Kransnoyarsk, Russian Federation

Доп.точки доступа:
Volova, T.G.; Voinova, O.N.; Kalacheva, G.S.; Grodnitskaya, I.D.

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Держатели документа:
Sukachev Institute of Forest, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036 Russia.

Доп.точки доступа:
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Держатели документа:
Sukachev Institute of Forest, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036 Russia.

Доп.точки доступа:
Shibistova, O.B.; Lloyd, J.; Kolle, O.; Arneth, A.; Tchebakova, N.M.; Zolotukhin, D.A.; Zrazhevskaya, G.K.; Schulze, E.D.

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Держатели документа:
Institute of Forest, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk, 660036 Russia.

Доп.точки доступа:
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