J Integr Plant Biol. ›› 2001, Vol. 43 ›› Issue (7): 766-768.

• Research Articles • Previous Articles    

Short Communication Involvement of Calcium-calmodulin in the Expression of hsp26 Gene in Wheat

LIU Hong-Tao, ZHAO He, LI Bing, SUN Da-Ye and ZHOU Ren-Gang   

Abstract:

The treatment of wheat ( Triticum aestivum L.) seedlings with CaCl2 increased mRNA levels of hsp26 gene at 37 ℃ for 1 h, while that with Ca2+ chelator EGTA decreased the expression of the hsp26 gene. The expression of the wheat calmodulin gene CaM1-2 is rapidly up-regulated in wheat seedlings by heat shock at 37 ℃. The heat-induced up-regulation of CaM1-2 occurred earlier than that of the hsp26 gene did. Calmodulin antagonist N-(6-aminohexyl)-5-chloro-1-naphthalenesulfonamid (W7) inhibited the expression of the hsp26 gene in wheat seedlings at 37 ℃ for 1 h. These results implied that the calcium-calmodulin is probably involved in the signal transduction of the hsp26 gene expression induced by heat shock.

钙-钙调素对小麦hsp26基因表达的影响
刘宏涛1,2  赵和 李冰1,2  孙大业2 周人纲1*

(1.  河北省农林科学院农业物理生理生化研究所,石家庄050051;
2.  河北师范大学生命科学学院,石家庄050016)
关键词: 热激蛋白;钙’钙调素;基因表达;小麦

Key words: heat shock protein, calcium-calmodulin, gene expression, wheat

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