The plant dehydrins: Structure and putative functions

被引：228

作者：

Allagulova, CR ^{[1
]}

Gimalov, FR ^{[1
]}

Shakirova, FM ^{[1
]}

Vakhitov, VA ^{[1
]}

机构：

[1] Russian Acad Sci, Ufa Sci Ctr, Inst Biochem & Genet, Ufa 450054, Russia

来源：

BIOCHEMISTRY-MOSCOW | 2003年 / 68卷 / 09期

关键词：

dehydrins; desiccation; stress factors; abscisic acid;

D O I：

10.1023/A:1026077825584

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

This review deals with recent data on the structure and biochemical properties of dehydrins, proteins that are normally synthesized in maturating seeds during their desiccation, and also in vegetative tissues of plants treated with abscisic acid or exposed to environmental stress factors that result in cellular dehydration. The dehydrins are considered as stress proteins involved in formation of plant protective reactions against dehydration. The generally accepted classification of dehydrins is based on their structural features, such as the presence of conserved sequences, designated as Y-, S-, and K-segments. The K-segment representing a highly conserved 15 amino acid motif (EKKGIMDKIKEKLPG) fori-ning amphiphilic (alpha-helix has been found in all dehydrins. The pathways of regulation of dehydrin gene expression, putative functions of dehydrins, and molecular mechanisms of their actions are discussed.

引用

页码：945 / 951

页数：7

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