crista

1.The uniformity of chloroplast grana lamellae,, the numbers and cristae of mitochondria, and the concentration of nucleus karyolymph were different among different mature grade leaves.

不同成熟度叶超微结构变化显，主要表现在叶绿结构整齐程度、线粒个数嵴数以及细胞核核液浓度。