南黄大麦叶绿体的超微结构与分裂

ULTRASTRUCTURL AND DIVISION OF CHLOROPLAST ON NANCHONG YELLOWISH BARLEY

南黄大麦是一个新的稳定的突变体。其叶绿体为近似的椭圆形，有双层外被膜，其基质的电子密度低，含有大小不等的嗜锇颗粒、淀粉粒等，基质片层和基粒不发达，并有一个随个体发育而逐渐复杂化的过程，是个体发育重演系统发育在亚显微结构水平上的新证据之一，对叶绿体发育的条件等进行了分析。南黄大麦叶绿体分裂有两种方式：即痕缢法和切割法。对叶绿体分裂的方式、时间、同步性、子叶绿体大小等进行讨论。本文首次全面系统地对叶绿体的分裂过程进行了介绍，并获得了一批亚显微结构方面的电镜照片。

Nanchong yellowish berley is a new and steady mutant. It has been observed that there are bilayer out-envelope of chlorpoplast.The electron dense is low,there are asmiophiljc globules and starch grain in the stroma. The lameest system isnot develops. The ultrustructure is a evidence on ontogeny rwepitulation phylopny.The chloropha divison by Contriction Method and Creaking on nanchong yellowish barley. In this paper we have discussed the chloroplast divisional mode, time, divisional synchronism nd size of the daughterchloroplasts.