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中国农学通报

中国农学通报 ›› 2010, Vol. 26 ›› Issue (8): 207-211.

• 植物保护 农药 • 上一篇    下一篇

从拮抗枯萎病的香蕉植株中分离内生细菌的研究初报

王宇光1,孙建波1,夏启玉1,罗冠勇1,卢雪华1,张欣2   

  • 收稿日期:2009-11-17 修回日期:2009-12-13 出版日期:2010-04-20 发布日期:2010-04-20
  • 基金资助:

    中央级公益性科研院所基本科研业务费专项

A primary study on isolating endogenetic microorganism from banana against Fusarium wilt

Wang Yuguang1, Sun Jianbo1, Xia Qiyu1, Luo Guanyong1, Lu Xuehua1, Zhang Xin2   

  • Received:2009-11-17 Revised:2009-12-13 Online:2010-04-20 Published:2010-04-20

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摘要：

香蕉枯萎病已成为香蕉产业的毁灭性病害，近年在我国的香蕉主要区迅速蔓延，目前还未找到有效的解决措施。在海南枯萎病严重发病多年的香蕉园中，我们发现在严重感病致死的植株包围中，存在着能正常挂果并成熟的植株。由于它们在品种上的相同性，因此从品种的差异上难以解释该现象。我们分离了其中的内生微生物，发现其中的内生微生物主要以细菌为主，一部分细菌能分泌几丁质酶，对病原菌有一定的拮抗性，尤其在香蕉杆浸出汁培养基中对病原菌的生长有一定抑制作用。这为香蕉枯萎病的生物防治提供了一条较好的思路。

关键词: 农业上市公司, 农业上市公司, 多元化经营, Herfindahl指数, 生产效率

Abstract:

Fusarium wilt is a fatal disease in banana’s growth. In recent years, the disease spread very quickly in banana’s main growth zone, however, there were no effective measures to deal with it. In this research, we find some normal growth banana trees in perennial banana garden which have been infected seriously with fusarium wilt.We don’t know the reason because of the same breed in this garden. Thus, we separate the endogenetic microorganism from banana tree, and we find bacteria are dominating in these microorganism. In these bacterias, some secrete chitinase which can restrain the pathogen’s growth especially in culture medium made of banana lixivium. The phenomenon provide an good idea for biocontrol against Fusarium wilt.