Administration of isothiocyanates enhances heat tolerance in Arabidopsis thaliana

被引：51

作者：

Hara, Masakazu ^{[1
]}

Harazaki, Akino ^{[1
]}

Tabata, Kyoko ^{[1
]}

机构：

[1] Shizuoka Univ, Fac Agr, Shizuoka 4228529, Japan

来源：

PLANT GROWTH REGULATION | 2013年 / 69卷 / 01期

关键词：

Arabidopsis thaliana; Heat shock protein; Heat tolerance; Isothiocyanate; GLUCOSINOLATE-MYROSINASE SYSTEM; MULTIPLE STRESS TOLERANCE; SALICYLIC-ACID; PLANTS; INDUCTION; THERMOTOLERANCE; METABOLISM;

D O I：

10.1007/s10725-012-9748-5

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Although it has been documented that plants generate isothiocyanates (ITCs) through the glucosinolate-myrosinase system to defend against biotic stresses, the roles of ITCs in defending against abiotic stresses have scarcely been studied. Here, we report that exogenously applied ITCs enhance the heat tolerance of Arabidopsis thaliana. Pre-administration of phenethyl ITC to Arabidopsis plants mitigated growth inhibition after heat stress at 55 A degrees C for 1 h. Although methyl ITC and allyl ITC also tended to reduce the growth inhibition that the same heat treatment caused, the reduction effects were weaker. The expression levels of heat shock protein 70 genes in Arabidopsis were elevated after phenethyl ITC treatment. These results suggest that ITCs may act as heat-tolerance enhancers in plants.

引用

页码：71 / 77

页数：7

共 25 条

[1] Enhancement of the tolerance of Arabidopsis to high temperatures by genetic engineering of the synthesis of glycinebetaine [J].