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	Salicylic acid or heat acclimation pre-treatment enhances the plasma membrane-associated ATPase activities in young grape plants under heat shock
	Liu Y. P. ; Zhang J. H. ; Liu H. T. ; Huang W. D.
	2008
关键词	Heat acclimation Salicylic acid H(+)-ATPase Ca(2+)-ATPase Young grape plants h+-atpase oxidative stress chilling stress winter-wheat calcium cells seedlings ca2+-atpase thermotolerance enzyme
英文摘要	Proton pumps play an important role in the physiological activities of plants. Changes in membrane-associated H(+)- and Ca(2+)-ATPase activities in heat-shocked plants after heat acclimation (HA) or salicylic acid (SA) pre-treatment in annual young grape plants (Vitis vinifera L. cv. Jingxiu) were investigated. ATPase activity was assayed through biochemical analysis in which two-phase partitioning was used to purify plasma membranes and cerium trichloride was precipitated with an electromicroscopic cytochemical method. The plasmalemma H(+)- and Ca(2+)-ATPase activities were higher in HA- or SA-pre-treated plants than in controls. The stability of H(+)- and Ca(2+)-ATPase activities in pre-treated plants always remained at higher levels during subsequent heat shock treatment, which was consistent with the observations made using an electromicroscope. A number of cerium phosphate grains representing enzyme activity in HA- or SA-pre-treated plants were observed 6 h following heat shock, whereas no grains were found in control plants under the same conditions. These results suggest that the changes in the activities of plasma membrane H(+)- and Ca(2+)-ATPase contributed to the thermotolerance induced by either HA or SA pre-treatment in young grape plants and the two pre-treatments may have had the some same regulatory mechanism. (C) 2008 Elsevier B.V. All rights reserved.
出处	Scientia Horticulturae
卷	119
期	1
页	21-27
收录类别	SCI
语种	英语
ISSN号	0304-4238
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/23394]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Liu Y. P.,Zhang J. H.,Liu H. T.,et al. Salicylic acid or heat acclimation pre-treatment enhances the plasma membrane-associated ATPase activities in young grape plants under heat shock. 2008.

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