首页|期刊导航|中国农业科学（英文版）|The Changes of Photosynthetic Properties and Cell Microstructure in Peanut Leaves during Leaf Senescence
中国农业科学（英文版）2002，Vol.1Issue(4)：410-416,7.
The Changes of Photosynthetic Properties and Cell Microstructure in Peanut Leaves during Leaf Senescence
The Changes of Photosynthetic Properties and Cell Microstructure in Peanut Leaves during Leaf Senescence
摘要
Abstract
The changes of photosynthetic properties and cell microstructure in peanut leaves during leaf senescence were studied with two high-yielding peanut cultivars (cv. Luhua11 and Fu8707). The main results showed that during the whole process of leaf growth and senescence, changes in the photosynthesis rate (Pn)and contents of chlorophyll in leaves, could be described with a parabolic function, y = A + Bx + Cx2 (where y refers to the values of the above parameters and x to the days after leaf unfolding). During peanut leaf senescence, the shape of chloroplast changed gradually from long ellipses to circles. The starch globule in chloroplast altered gradually from more and larger sizes to fewer and smaller, but the oil globule from fewer and smaller to more and larger. The grana lamellae varied progressively: from thinness and length to thickness and shortness; from ranking along the long axle direction of chloroplast to disorderly arrangment and finally blurring.At last, the membrane envelope of chloroplast broke, so the inclusion seeped out to the cell and the chloroplast broke up.关键词
Peanut/Leaf senescence/Photosynthetic properties/Cell microstructureKey words
Peanut/Leaf senescence/Photosynthetic properties/Cell microstructure引用本文复制引用
LI Xiang-dong,WANG Xiao-yun,YU Song-lie,ZHANG Gao-ying,WAN Yong-shan,LI Jun..The Changes of Photosynthetic Properties and Cell Microstructure in Peanut Leaves during Leaf Senescence[J].中国农业科学（英文版）,2002,1(4):410-416,7.基金项目
The project was supported by the Reward Fund of Outstanding Youth and Middle Age Scientist of Shandong Province (9908), and the Doctor Fund of Shandong Agricultural University. （9908）
