| 珙桐叶肉细胞中的核内含体 |
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| 引用本文： | 黄金生,姜力.珙桐叶肉细胞中的核内含体[J].Acta Botanica Sinica,1996,38(6):495-496. |
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| 作者姓名： | 黄金生 姜力 |
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| 作者单位： | 南京林业大学电镜室!南京210037 |
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| 摘 要： | 对植物细胞核内含体的超微结构已有过广泛的研究1]。Bigazzi仅对玄参科就研究了290种植物,发现其中242种具有核内含体2]。根据超微结构特征,可以把这类无膜的已证明主要是蛋白质成分的核内含体分为5种类型。即片状型(L-type)、纤丝状型(F-type)、管状型(T-type)、晶体型(C-type)及无定形型(A-type)3]。此前除F-type外陆续发现了与基本类型略有差异的4种亚型,即C2亚型、T2亚型、A2亚型和L2亚型2,3]。尽管目前还不清楚核内含体的功能,但是研究发现,它在成熟细胞中的结构是稳定的。许多学者认为核内含体作为超微结构特征,在系统学和分…
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| 关 键 词： | 珙桐 核内含体 超微结构 |
INTRANUCLEAR INCLUSIONS IN LEAF MESOPHYLL CELLS OF DAVIDIA INVOLUCRATA |
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| Authors: | Huang Jin sheng Jang Li Gan Xi hua and Zhu Wei hua [WTBZ] |
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| Institution: | Huang Jin sheng,Jang Li,Gan Xi hua and Zhu Wei hua [WT6BZ] |
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| Abstract: | The ultrastructure of intranuclear inclusions in leaf mesophyll cells of Davidia involucrata was investigated with electron microscopy.Intranuclear inclusions occur generally in the cells of young and mature leaves.They consist of numerous bundles aggregated by several fibres (diameter about 10 nm),sometimes a few of bundles turn to tubules enveloped by fibres.Authors suggested that it is a new subtype (F2) of intranuclear fibrillar inclusion. |
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| Keywords: | Davidia involucrata Intranuclear inclusion Ultrastructure |
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