生物技术通报 ›› 2013, Vol. 0 ›› Issue (8): 124-129.

• 研究报告 • 上一篇    下一篇

香蕉枯萎病拮抗放线菌1-g-59的筛选与鉴定

刘小玉1, 2, 周登博1, 2, 谭昕2, 高祝芬2, 陈波1, 2, 黄霄1, 2, 张锡炎2   

  1. (1.海南大学园艺园林学院,海口 571737;2.中国热带农业科学院生物技术研究所,海口 571101)
  • 收稿日期:2013-02-25 修回日期:2013-08-11 出版日期:2013-08-11 发布日期:2013-09-02
  • 作者简介:刘小玉,女,硕士研究生,研究方向:香蕉枯萎病防控;E-mail:liuxiaoyu06120210@163.com
  • 基金资助:

    现代农业产业技术体系建设专项资金(CARS-32)

Screening and Identification of Antagonistic Actinomyces 1-g-59 Against Fusarium oxysporium f. sp. cubense

Liu Xiaoyu1, 2 Zhou Dengbo1, 2 Tan Xin2 Gao Zhufen2 Chen Bo1, 2 Huang Xiao1, 2 Zhang Xiyan2   

  1. (1. College of Horticulture and Landscape,Hainan University,Haikou 571737;2. Institute of Tropical Bioscience and Biotechnology,Chinese Academy of Tropical Agricultural Sciences, Haikou 571101)
  • Received:2013-02-25 Revised:2013-08-11 Published:2013-08-11 Online:2013-09-02

摘要:

通过对海南美台、南宝蕉园香蕉根际土壤的分离和筛选,获得5株对FOC 4具有拮抗作用的放线菌,其中以菌株1-g-59活性最强。根据进行形态特征、培养特征、生理生化特征、细胞壁化学成分分析、16S rDNA序列和系统发育分析等研究,鉴定菌株1-g-59为Streptomyces lunalinharesii。盆栽试验结果表明,菌株1-g-59发酵液对香蕉枯萎病具有较强的防治作用,防治效果达64.9%。

关键词: 香蕉枯萎病, 拮抗放线菌, 筛选, 鉴定

Abstract:

Five antagonistic strains against Fusarium oxysporum f. sp. cubense were isolated and screened from the rhizosphere soil of the banana garden in Meitai and Nanbao, strain 1-g-59 possessed the most prominent bioactivity. By studying the morphology, cultural, physiological and biochemical properties, cell wall components analysis, 16S rDNA and phylogenetic tree, the results showed that strain 1-g-59 was identified as Streptomyces lunalinharesii. Pot experiment showed that control effects of the fermentation filtrate of strain 1-g-59 on banana fusarium wilt disease was 64.9%.

Key words: Banana, Fusarium wilt disease, Antagonistic actinomyces, Screening , Identification