植物研究2012，Vol.32Issue(3)：279-283,5.
不同光温条件下紫背浮萍叶肉细胞和叶绿体超微结构的研究
Ultrastructure of Mesophyllic Cells and Chloroplasts of Spirodela polyrrhiza under Different Light Intensities and Temperatures
摘要
Abstract
The ultrastructure of Spirodela polyrrhiza, which belongs to the family of Lemnacea, was investigated using transmission electron microscope. We have discovered that; when supplied with strong light intensity, the chloroplasts in mesophyll cells of S. polyrrhiza increased. Though the number of chloroplasts decreased with weak light intensity, the grana lamella of chloroplasts thickened to increase its photosynthesis reaction area. In terms of temperature effects, S.polyrrhiza was under stress to a certain degree in 10℃ and 35℃ treatments, as shown by shriveled chloroplasts and large cell cavity at 10℃, and dissolved chloroplast envelope, exuded stroma and increased plastoglobulus at 35℃. S. polyrrhiza transformed its internal structure inside the cell morphology in order to adapt to different light intensity and temperature conditions, making it be a certain tolerant to light and temperature stress.关键词
紫背浮萍/叶肉细胞/叶绿体/超微结构Key words
duckweed/ mesophyllic cell/ chloroplast/ ultrastructure分类
农业科技引用本文复制引用
蔡树美,单玉华,钱晓晴..不同光温条件下紫背浮萍叶肉细胞和叶绿体超微结构的研究[J].植物研究,2012,32(3):279-283,5.基金项目
国家科技支撑计划项目(2010BAK69B18) （2010BAK69B18）
上海市科委崇明科技攻关专项(10DZ1960100) （10DZ1960100）
