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

[Text] / Y. A. Darikova [et al.] // Trees-Struct. Funct. - 2013. - Vol. 27, Is. 6. - P1621-1631, DOI 10.1007/s00468-013-0909-6. - Cited References: 42. - This work was supported in part by the program of the Russian Federation Ministry of Education and Science "Development of the scientific potential of institutions of higher education" (Siberian Federal University grant "Analysis of the main mechanisms of coordination of growth processes of primary and secondary meristems in the morphogenesis of trees" awarded to E. A. Vaganov). We thank Prof. V.V. Shishov for providing a computer program based on the algorithm described in (Vaganov et al. 1985, 2006) that was used to perform the normalization procedure. We are very grateful to the two Anonymous Reviewers for the thorough reviews that helped to greatly improve the manuscript. Special thanks are due to the Communicating Editor, who provided numerous helpful critical comments as well as guidance on improving the scientific presentation and clarity of the manuscript. . - 11. - ISSN 0931-1890РУБ Forestry

Аннотация: The analysis of the anatomical characteristics of tree rings of the Pinus sibirica scions and Pinus sylvestris rootstocks is presented. The main anatomical features maintain the seasonal dynamics characteristic of the reference (ungrafted) trees of scion and rootstock, pointing to the stability of the genetic control of the xylem differentiation. However, various anatomical characteristics are reduced for rootstocks and increased for scions relative to the reference trees. A mechanism consistent with our results is that the graft union zone creates a barrier for the ascending and descending transport of substances, including phytohormones. The reaction of the scion and rootstock to climatic factors is weakened relative to the reaction of the reference trees. Thus, the presumed shift towards phytohormone disbalance reduces the influence of external factors on xylem differentiation. The interannual variation of the individual characteristics of the scions and rootstocks is increased relative to the reference trees, reflecting either the influence of the graft partners on each other or the non-uniform distribution of the growth regulators across the graft union. Thus, heterografts can be used to evaluate the interaction of the internal and external mechanisms of xylem differentiation.

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Держатели документа:
[Darikova, Yulia A.
Vaganov, Eugene A.
Grachev, Alexi M.] Siberian Fed Univ, Krasnoyarsk 660041, Russia
[Vaganov, Eugene A.
Kuznetsova, Galina V.] Russian Acad Sci, Siberian Branch, VN Sukachev Inst Forest, Krasnoyarsk 660036, Russia

Доп.точки доступа:
Darikova, Y.A.; Vaganov, E.A.; Kuznetsova, G.V.; Grachev, A.M.; Russian Federation Ministry of Education and Science (Siberian Federal University)