转玉米pepc基因水稻的某些光合特性  

Some Photosynthetic Characteristics in Transgenic Rice with Maize Phospho-enolpyruvate Carboxylase Gene (pepc)

作　　者：何立斌[1] 李平[1] 向珣朝[1] 李季航[1] 张楷正[1] 

机构地区：[1]四川农业大学水稻研究所

出　　处：《植物生理学通讯》2005年第4期461-463,共3页Plant Physiology Communications

基　　金：国家"863"计划(2003AA212030)。

摘　　要：测定转玉米pepc基因水稻和未转化粳稻品种Kitaake在分蘖初期、分蘖盛期、拔节期、始穗期、齐穗期、成熟期和剑叶不同生长时期的光合特性动态变化的结果表明:转玉米pepc基因水稻的磷酸烯醇式丙酮酸羧化酶(PEPCase)活性和净光合速率(Pn)在不同时期各不相同,相对于Kitaake而言,均有不同程度的提高;剑叶完全展开时的PEPCase活性和Pn提高最明显。The dynamics of photosynthetic characteristics in leaves of transgenic rice plants with maize phosphoenolpyruvate carboxylase gene （pepc） and untransformed rice cv. “Kitaake” were determined at initialtillering stage, full-tillering stage, jointing stage, begin-heading stage, heading stage, maturing stage and six different growing stages of flag leaves. The results indicated that the levels of PEPCase activity and the net photosynthesis rate （Pn） of transgenic rice increased to some extent as compared with untransformed rice at during whole development stages. It proved that the maize pepc in transgenic rice had been expressed. The PEPCase activity and the Pn of transgenic rice expressed highest at flag leaf complete outspreading.

关 键 词：水稻 玉米PEPC基因 高光效育种 光合生理特性 动态研究 光合特性 磷酸烯醇式丙酮酸羧化酶 分蘖盛期 净光合速率 粳稻品种 

分 类 号：S511[农业科学—作物学] S511.062