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作 者 ：陈刚;刘巧泉;王忠;顾蕴洁;利佳

期 刊 ：作物学报 2005年 31卷 09期 页码：1192-1197

关键词：水稻；颖果；剑叶；Wx蛋白；转基因；生理活性；

Keywords:Rice, Caryopsis, Flag leaf, Wx protein, Transgene, Physiological activity,

摘 要 ：以转反义Wx基因粳稻和籼稻为材料的研究结果表明，直链淀粉含量降低后的转基因水稻颖果的光合和呼吸活性在发育前期显著高于亲本，但下降较快，到了发育中期(花后15~18 d)以后，就低于同期的亲本。但其SOD和CAT活性比其亲本下降得慢，从花后9 d开始一直保持着比亲本高的水平。花后转基因水稻剑叶的叶绿素含量、光合速率和SOD

Abstract:The content of amylose in rice caryopsis is determined by Wx protein, one kind of granule-bound starch synthetase which is encoded by Wx gene. Different rice types and species have different levels of Wx gene expression and have different content of amylose in their caryopsis. Wuyunjing 7(2200), the

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