转Bt基因水稻生长期几种重要成分含量的变化研究  

Changes of Several Important Materials in Transgenic Bt Rice

作　　者：贾乾涛[1] 石尚柏 杨长举[1] 彭于发[3] 

机构地区：[1]华中农业大学植物科学技术学院,武汉430070 [2]湖北省植物保护总站,武汉430070 [3]中国农业科学院植物保护研究所,北京100094

出　　处：《中国农业科学》2005年第10期2002-2006,共5页Scientia Agricultura Sinica

基　　金：国家"973"重点基础发展规划项目(001CB109004)

摘　　要：对Bt水稻汕优63及其非转基因亲本汕优63不同生长期几种重要成分的含量进行了分析,以期为转Bt基因水稻的生态学和安全性评价提供基础代谢方面的依据。结果表明,在抽穗期,Bt水稻和非Bt水稻茎秆和叶片中大部分氨基酸的含量差异显著或极显著;在大部分生长期,Bt水稻和非Bt水稻氮、磷和硅的含量差异显著或极显著,但它们的变化趋势基本一致,氮和磷的含量在拔节期之后均呈下降趋势,而硅的含量则随水稻的生长发育呈上升趋势;在水稻生长前期,Bt水稻可溶性糖和还原糖的含量比非Bt水稻低,但在后期比非Bt水稻高,且差异均显著或极显著。In order to provide metabolism evidence for ecology and safety assessment of transgenic Bt rice, several important materials in transgenic Bt rice “Shanyou 63” with cry1Ab/cry1Ac genes and non-transgenic “Shanyou 63” without cry1Ab/cry1Ac genes were analyzed, Results showed that the contents of most amino acids in stems and leaves of transgenic Bt rice “Shanyou 63” and in non-transgenic rice “Shanyou 63” had significant or highly significant differences at heading stage. And during the majority growth stages, the contents of N, P and Si in two rice lines had significant or very significant difference, but their trends of change with time were basically accordant： The contents of N and P gradually decreased after stem-drawing stage, while the contents of Si gradually increased with the growth of rice. In the early growth stage, water-soluble sugar and reducing sugar contents in transgenic Bt rice “Shanyou 63” were significantly lower than those of non-transgenic “Shanyou 63”, but in late growth stage, were significantly higher than those of non-transgenic “Shanyou 63”.

关 键 词：转BT基因水稻 氨基酸 氮 磷 硅 可溶性糖 还原糖 成分含量 生长期 BT水稻 

分 类 号：S511[农业科学—作物学]