Effect of Growing Conditions on the Composition of Lipids and Fatty Acids in Dwarf and Tall Forms of Siberian Apple (Malus baccata L.)
A. V. RUDIKOVSKY1, L. V. DUDAREVA1, A. V. STOLBIKOVA1, E. G. RUDIKOVSKAYA1, O. N. POTEMKIN2
1Siberian Institute of Plant Physiology and Biochemistry SB RAS, 664033, Irkutsk, Lermontov str., 132
prod@sifibr.irk.ru
2Central Siberian Botanical Garden SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
1964o@mail.ru
Keywords: Siberian apple (Malus baccata L. Borkh), dwarfism, water supply, lipids, fatty acids
Abstract
Results of the comparative analysis of lipid and fatty acid composition of the roots, leaves and fruit of the dwarf and tall forms of Siberian apple growing under the conditions of different water supply are described. It was discovered that adaptation to decreased water supply in different ecological forms of apple within the same species involves biochemical changes in the amount and quality of total lipids and phospholipids. Noticeable differences in the chemical composition of the two forms of apple were demonstrated in the level of unsaturation of fatty acids and phospholipids. The most significant differences in the fatty acid composition were detected between the root tissues of the two apple forms. It is assumed that these differences are caused by differences in water supply, which can be one of the reasons of the formation of the dwarf status of Siberian apple; possible participation of the lipid pool in this process is also assimed.
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