小麦B染色体组双端体光合性能的初步研究  

PRELIMINARY STUDIES ON THE PHOTOSYNTHETIC CHARACTERISTICS OF DIFFERENT DITELOSOMIC LINES OF B GENOME

作　　者：李小娟[1] 赵玉新[1] 肖凯[1] 李雁鸣[1] 

机构地区：[1]河北农业大学农学院

出　　处：《河南科学》1999年第A06期35-38,共4页Henan Science

摘　　要：与对照ＣＫ相比，各供试Ｂ染色体组双端体材料的旗叶光合性能表现不同，多数Ｂ染色体长臂、２ＢＳ、７ＢＳ对叶绿素含量具有正效应，３ＢＬ、４ＢＳ、５ＢＳ具有负效应，在光合功能上，３ＢＬ、１ＢＳ、４ＢＳ、５ＢＳ表现为负效应，５ＢＬ、６ＢＬ、７ＢＬ、２ＢＳ、３ＢＳ、７ＢＳ则表现为正效应，不同部位染色体臂缺失对叶绿素含量和光合速率的不同效应，可能是由于染色体臂缺失后，光合机构和光合功能相关的基因结构与表达发生改变所致。Compared to CK, the photosynthesis characteristics of the ditelosomic lines of B genome are different. Most of the long arms, 2BS and 7BS have positive effect on the chlorophyll content, while ditelosomic lines 3BL, 4BS and 5BS have negative effect on it. By comparing the photosynthetic functions, we find the ditelosomic lines 5BL, 6BL, 7BL, 2BS, 3BS and 7BS have positive effect on it, 3BL, 1BS, 4BS and 5BS have negative effect on it. The loss of different chrosome arms in B genome can bring different effects, this is probably because it can make the genes′ structure and expression that relate to the photosynthetic orgnaization and photosynthetic function change.

关 键 词：小麦 B染色体组 双端体 光合性能 

分 类 号：S512.101[农业科学—作物学]