In chloroplasts thylakoid membranes became loose gradually, whereas the number and size of osmiophilic granule increased till the chloroplasts disappeared.

 
  • 叶片衰老过程中叶绿体类囊体膜片层逐渐松散,直至膜结构逐渐解体,叶绿体内油脂颗粒增大增多,最终解体。
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