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叶绿体是由前质体发育而成,不同植物的叶绿体有着不同的结构並具有遗传性。因而叶绿体机能已成为确定品种的重要性状。通过电子显微镜观察查明;叶绿体具有片层结构,在片层结构中又分基粒片层和基质片层。叶绿素集中分布于片层之间,特别是基粒片层最为稠密。基粒片层是30—50埃厚的一对膜,其两端闭合为扁平中空的盘状类囊体,圆盘直径0.3
Chloroplasts are formed by the development of precursors, and chloroplasts of different plants have different structures and are inherited. Thus chloroplast function has become an important trait to determine the variety. Observed by electron microscopy; chloroplast has a lamellar structure, in the lamellar structure is divided into grana lamellar and matrix lamellae. Chlorophyll concentrated in the lamellae, especially the grana lamellae most dense. The grana layer is a pair of membranes 30-50 angstroms thick, closed at both ends by a flat, hollow disc-shaped thylakoid with a disc diameter of 0.3