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

[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] / 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.

/ I. N. Tretyakova, A. V. Lukina // Russ. J. Dev. Biol. - 2017. - Vol. 48, Is. 5. - P340-346, DOI 10.1134/S1062360417050083. - Cited References:19. - I thank D.SC. Med. Sci. Prof. S.N. Goroshkevich for providing samples of hybrid cones of Pinus sibirica. The study was supported by the Russian Foundation for Basic Research, project no. 15-04-01427, and the Government of Krasnoyarskii krai, Krasnoyarsk Regional Fund for Support of Scientific and Scientific-Technical Activities, project no. 16-44-240509. . - ISSN 1062-3604. - ISSN 1608-3326РУБ Developmental Biology

Аннотация: Cytoembryological research of the ovules in experiments with interspecific hybridization of Pinus sibirica (pollination be the pollen of P. koraiensis, P. armandii, P. parviflora, P. strobus, P. hokkaidensis, P. wallichiana, P. monticola, and P. Nembra) revealed that the development of megagametophytes occurred in them by the usual scenario and resulted in the formation of mature archegonia. Pollen successfully germinated on the nucellus of ovules. However, disturbances were observed in the process of male gametophyte development, and pollen tubes on the nucellus were not visible by the period of archegonia maturation. Fertilization was usually absent. The development of embryonic channel is determined by egg cell maturity. The only exception was the variant of the controlled pollination of Pinus sibirica x P. Nembra, in which the embryo has been formed.

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Держатели документа:
Russian Acad Sci, Special Dept Forest Inst, Krasnoyarsk Sci Ctr, Fed Res Ctr,Siberian Branch, Krasnoyarsk 660036, Russia.

Доп.точки доступа:
Tretyakova, I. N.; Lukina, A. V.; Russian Foundation for Basic Research [15-04-01427]; Government of Krasnoyarskii krai, Krasnoyarsk Regional Fund for Support of Scientific and Scientific-Technical Activities [16-44-240509]