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植物研究  2015 

过表达ThVHAc1对拟南芥V-ATPase各亚基表达的影响

DOI: 10.7525/j.issn.1673-5102.2015.05.009, PP. 692-695

Keywords: 刚毛柽柳,表达分析,c亚基,V-ATPase,ThVHAc1

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Abstract:

?V-ATPase是多亚基复合蛋白,其c亚基负责V-ATPase的组装及质子通道的形成。本研究拟分析盐胁迫下过表达ThVHAc1基因拟南芥V-ATPase各亚基的表达,探讨过表达外源c亚基对拟南芥V-ATPase全酶响应盐胁迫表达模式的影响。实时荧光定量PCR结果显示,盐胁迫下,过表达外源ThVHAc1拟南芥V-ATPase28个亚基的表达发生了明显改变,且拟南芥5个c亚基的表达均不同程度的被抑制。表明外源ThVHAc1基因能影响拟南芥V-ATPase各亚基的表达以调节V-ATPase全酶的活性,但各亚基的表达模式与V-ATPase活性非简单对应关系,各亚基互相协调决定V-ATPase活性。

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