| 非洲狼尾草珠心细胞核穿壁运动超微结构研究 |
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| 引用本文： | 刘林,李淑兰.非洲狼尾草珠心细胞核穿壁运动超微结构研究[J].植物学报,2003,20(5):585-588. |
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| 作者姓名： | 刘林 李淑兰 |
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| 作者单位： | (临沂师范学院植物发育与无融合生殖研究室 临沂 276005） |
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| 摘 要： | 用透射电子显微镜观察了非洲狼尾草珠心组织中细胞核穿壁运动。一个细胞核向相邻细胞转移时，可以进入一个或多个孔道：孔道直径0.33～0.68 μm。处于穿壁状态的细胞核染色质不正常地浓缩，电子密度大。
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| 关 键 词： | 非洲狼尾草 细胞核穿壁运动 |
| 收稿时间： | 2002-11-12 |
| 修稿时间： | 2003-03-13 |
Ultrastructural Study of Nucleus Transfer in Nucellus of Pennisetum squamulatum |
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| LIU Lin,LI Shu-Lan.Ultrastructural Study of Nucleus Transfer in Nucellus of Pennisetum squamulatum[J].Bulletin of Botany,2003,20(5):585-588. |
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| Authors: | LIU Lin LI Shu-Lan |
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| Institution: | (Laboratory of Plant Development and Apomixis, Linyi Teachers University, Linyi 276005) |
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| Abstract: | Transmission electron microscopy was used to characterize the nucleus transfer across cell wall in nucellus of Pennisetum squamulatum．It was observed that a nucleus can move across cell wall through one or more than one channel with 0.33 to 0.68 μm in diameter,about 10 times of the plasmodesma width．The transferring nucleus is characteristic of condensed chromatin． |
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