利用电镜对杉木叶片在无光照条件下叶绿体超微结构进行观察,结果表明:杉木叶片在无光照条件下,叶绿体基质片层断裂,基粒类囊体数目减少,部分基质片层排列紊乱,并且随无光照时间的延长,类囊体膜受到破坏,叶绿体开始降解。该研究对于进行杉木光合作用的研究,以及指导杉木林的经营有现实意义。 The ultrastructure of chloroplast of Chinese fir (Cunninghamia lanceolata) was observed by electron microscopy. The results showed that under the condition of no light, the chloroplast lamella ruptured, the number of grana was reduced and some stroma lamella arranged disorderly With the extension of no light time, the thylakoid membranes were destroyed and chloroplasts began to degrade. The research is of great significance to the research on the photosynthesis of Chinese fir and to the management of the Chinese fir plantation.