摘要
蛋白质丧失是叶片衰老的一个早期表现 ,降解的蛋白主要是可溶性蛋白中部分 蛋白。随衰老加深 ,叶绿素含量、光合速率下降 ,保护酶活性降低。叶片这些衰老的表现是体内活性氧。
The loss of protein is an earlier symbol of leaf senescence.Degradation protein is mainly fraction Ⅰ protein in soluble of protein.With further senescence,both the contents of chlorophyll and the photosynthesis rate decrease.The protective enzyme activity also decreases.The presence of leaf senescence is a result of metabolism disadjustment in active oxygen and free radicals inside the body.
出处
《西北植物学报》
CAS
CSCD
2001年第6期1271-1277,共7页
Acta Botanica Boreali-Occidentalia Sinica
基金
国家自然科学基金资助项目 ( 396 70 4 36 )
关键词
叶片衰老
蛋白质
光合保护酶
高等植物
leaf senescence
protein
photosynthesis
protective enzyme
