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核农学报  2013 

NO和H2O2依赖Ca2+/CaM信号调控马铃薯花青素积累

DOI: 10.11869/hnxb.2013.06.0848, PP. 848-853

Keywords: 彩色马铃薯,NO,H2O2,Ca2+/CaM信号,花青素

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Abstract:

以不同块茎颜色马铃薯品种陇薯8号、陇薯7号、LC310-2和山东彩肉为材料,研究外源NO、H2O2、NO+H2O2处理对马铃薯块茎花青素合成及其信号物质Ca2+-ATPase和CaM的影响。结果表明:外源NO和H2O2处理后,4个基因型马铃薯薯皮和薯肉花青素积累,Ca2+-ATPase活性升高,CaM含量增加,其效果为NO+H2O2>H2O2>NO>水(CK),并且花青素的积累量与Ca2+-ATPase活性和CaM含量均呈正相关,其平均决定系数达0.9194和0.8859。说明NO和H2O2对马铃薯花青素合成具有一定的促进作用,而细胞Ca2+/CaM信号发挥了NO和H2O2对马铃薯花青素合成诱导的信号调节。

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