Adaptive Responses of Morphological Forms of Pine (Pinus Sylvestris L.) under Stressful Conditions of the Northern Taiga (in the Northen Dvina Basin)
S. N. TARKHANOV, E. A. PINAEVSKAYA, Y. E. AGANINA
N. Р. Laverov Federal Center for Integrated Arctic Research, 163000, Arkhangelsk, Severnаya Dvinа, emb. 23
Keywords: Pinus sylvestris, форма, стрессовые условия, изменчивость, биохимические показатели, радиальный прирост, адаптация, Северо-Двинской бассейн, Pinus sylvestris, form, stress conditions, variability, biochemical indicators, radial growth, adaptation, Northern Dvina basin
Abstract
Variability of physiological and biochemical indicators and radial growth of different forms of Pinus sylvestris L. (f. (var.) sulfuranthera Kozubow and f. (var.) erythranthera Sanio) under flooding conditions was investigated. It was shown that the dynamics of the content of some biochemical characteristics such as photosynthetic pigments (chlorophylls and carotenoids), proline, proteins, ascorbic acid, peroxidase activity and light harvesting complex in the pine needles depended on meteorological factors and phenophase. Forms with different color of anthers differ in the seasonal dynamics of the content of stressful metabolites and age variability of radial growth of wood. Our results indicate that different forms of Pinus sylvestris L. have nuances in adaptation to stress conditions.
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