| 黄瓜PGPR菌株根部定殖的扫描电镜研究 |
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| 引用本文： | 陈晓斌,顾振芳,周杭英.黄瓜PGPR菌株根部定殖的扫描电镜研究[J].上海交通大学学报(农业科学版),2004,22(2):153-156. |
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| 作者姓名： | 陈晓斌 顾振芳 周杭英 |
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| 作者单位： | 1. 上海交通大学,资源环境科学系,上海201101
2. 上海市七宝中学,生物教研组,上海201101 |
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| 基金项目： | 上海市高等学校青年科学基金 |
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| 摘 要： | 扫描电镜观察植物根际促生细菌(PGPR)菌株在限菌状况下黄瓜根部的定殖，结果显示根部定殖具宏观不均匀性，只在根面的少部分能够定殖，即存在有利于PGPR生长繁殖的生态位点；供试PGPR菌株在根部的扩展方式主要有2种：由根尖的被动携带和随根表水膜转移。
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| 关 键 词： | 黄瓜 PGPR菌株 根部定殖 植物根际促生细菌 扩展方式 限菌系统 生态位竞争优势 作用机制 |
| 文章编号： | 1671-9964(2004)02-0153-04 |
| 修稿时间： | 2003年10月15 |
Sanning Electron Microscopy Observations on Root Colonization of Plant Growth-promoting Rhizobacteria in Cucumber (Cucumis sativas L.) |
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| CHEN Xiao bin,GU Zhen fang,ZHOU Hang ying.Sanning Electron Microscopy Observations on Root Colonization of Plant Growth-promoting Rhizobacteria in Cucumber (Cucumis sativas L.)[J].Journal of Shanghai Jiaotong University (Agricultural Science),2004,22(2):153-156. |
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| Authors: | CHEN Xiao bin GU Zhen fang ZHOU Hang ying |
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| Institution: | CHEN Xiao bin1,GU Zhen fang1,ZHOU Hang ying2 |
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| Abstract: | Scanning electron microscopy (SEM) observations on root colonization of plant growth-promoting rhizobacteria in cucumber (Cucumis sativas L.) showed that not the entire root surface, but only those niche sites beneficial to the growth and multiplication of bacterial cells could be colonized under gnotobiotic conditions. There were two dispersal patterns of introduced PGPR on the root in which PGPR were carried passively by growing root tip and transferred with water membrane. |
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| Keywords: | cucumber (Cucumis sativas L ) plant growth-promoting rhizobacteria (PGPR) root colonization SEM (scanning electron microscopy) gnotobiotic system |
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