转玉米PEPC基因水稻的农艺性状及生理特性  

Agronomic Performance and Physiological Characteristics of PEPC Transgenic Rice

作　　者：李霞[1] 焦德茂[1] 刘蔚[1] 周月兰[1] 

机构地区：[1]江苏省农业科学院农业生物技术研究所,江苏南京210014

出　　处：《江苏农业学报》2007年第2期87-92,共6页Jiangsu Journal of Agricultural Sciences

基　　金：江苏省自然科学基金项目(BK2004429);教育部2006年留学基金项目;江苏省人事厅2006年留学择优项目;江苏省农业科学院基金项目(6110419)

摘　　要：以稳定的转PEPC基因水稻和未转基因野生型水稻为供试材料,测定稻株开花期间地上部干物质的累积量及籽粒中可溶性糖、淀粉和蛋白质含量。结果表明:与未转基因野生型水稻相比,转PEPC基因水稻叶片、茎鞘和穗干重都有部分增加,但以穗增重为主;开花后14 d,与未转基因野生型水稻相比,转PEPC基因水稻籽粒中可溶性糖含量和蛋白质含量显著增加,但其淀粉含量没有增加,推测转PEPC基因水稻籽粒中较多的可溶性糖可能会更多地转化为蛋白质。Dry matter accumulation, contents of soluble sugar and starch as well as protein in the aerial part during flowering stage were determined in PEPC transgenic rice and untransformed wild type rice. Relative to untransformed wild type rice, dry matter weights in the leaf, stem and sheath as well as panicle of PEPC transgenic rice were increased, with the most in panicle. Fourteen days after flowering, soluble sugar content and protein content in the grains of PEPC transgenic rice were raised significantly, with no change in starch content. The high level of soluble sugar in the grains of PEPC transgenic rice might have converted to protein.

关 键 词：水稻 高光效生理育种 PEPC基因 物质累积 

分 类 号：S511.032[农业科学—作物学]