Comparison of Changes in the Content of Plasma Membrane and Tonoplast Sterols under Oxidative and Osmotic Stress

被引：1
|
作者：
Ozolina, N. V. [1 ]
Gurina, V. V. [1 ]
Kapustina, I. S. [1 ]
Spiridonova, E. V. [1 ]
Nurminsky, V. N. [1 ]
机构：
[1] Russian Acad Sci, Siberian Inst Plant Physiol & Biochem, Siberian Branch, Irkutsk 664033, Russia
来源：
BIOCHEMISTRY MOSCOW SUPPLEMENT SERIES A-MEMBRANE AND CELL BIOLOGY | 2023年 / 17卷 / 02期
基金：
俄罗斯基础研究基金会;
关键词：
tonoplast; plasmalemma; sterols; stress;
D O I：
10.1134/S1990747823020058
中图分类号：
Q2 [细胞生物学];
学科分类号：
071009 ; 090102 ;
摘要：
-We compared oxidative and osmotic stress-induced changes in sterol content in plasma membranes and tonoplasts isolated from stored beet (Betavulgaris L.) roots. The most significant differences between the membranes under all studied stresses were observed in the cholesterol content: it decreased in the plasmalemma, but increased 4-6 times in the tonoplast. Similar changes were observed for other sterols, but in different ways under different types of stress. Particularly noticeable differences were noted under hyperosmotic stress. The increase in the content of sterols was much more pronounced in the vacuolar membrane compared to the plasmalemma. This observation allows us to conclude that tonoplast plays a more significant role in protection of the plant cell from stress compared to plasmalemma.
引用
收藏
页码：180 / 182
页数：3
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