【摘要】 原始型茶树与进化型茶树叶绿体结构的主要区别在于原始型茶树类囊体较大，排列较整齐，基粒片层、基质片层较疏松，膜纹较粗且排列整齐，结构单一．因此茶树叶绿体结构的演化基本上是由简单到复杂。更多还原

【Abstract】 The chloroplast ultra structures of tea cultivars with different evolutionary grades were compared The results showed that the primitive type tea had bigger thylakoid arrayed in more regular forms than the evolved type tea And also the layers of grana and stroma of the former were looser, the ornamentation of chloroplast envelopes looded more coarse and its arrangement more uniform The results indicated that the evolution of tea chloroplast ultra structure was from simplicity to complexity更多还原