Isolation of endophytic actinomycetes from roots and leaves of banana (Musa acuminata) plants and their activities against Fusarium oxysporum f. sp cubense
Isolation of endophytic actinomycetes from roots and leaves of banana (Musa acuminata) plants and their activities against Fusarium oxysporum f. sp cubense
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DOI：
10.1023/b:wibi.0000040406.30495.48
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发表时间：
2004-07-01
影响因子：
4.1
通讯作者：
Zhou, SN
中科院分区：
文献类型：
--
作者：
Cao, LX;Qiu, ZQ;Zhou, SN
从健康和萎蔫香蕉植株的叶片和根部分离到242株放线菌。其中以链霉菌为主，类灰红链霉菌是最常见的分离菌株。群落分析表明，萎蔫叶片中放线菌多样性高于健康叶片，萎蔫根和健康根中放线菌群落相似。拮抗西瓜枯萎病菌的菌株筛选。结果表明，健康根中拮抗链霉菌的比例显著高于萎蔫根（P < 0.01），而健康叶和萎蔫叶中拮抗链霉菌的比例无显著差异。探讨了内生链霉菌特别是类灰红链霉菌对香蕉巴拿马病的生物防治潜力。
Two hundred and forty-two actinomycete strains were isolated from the interior of leaves and roots of healthy and wilting banana plants. Most of them were streptomycetes, Streptomyces griseorubiginosus-like strains were the most frequently isolated strains. Community analysis demonstrated increased actinomycete diversity in wilting leaves compared to that in healthy leaves, similar actinomycete communities were found in wilting and healthy roots. Screening of the isolates for antagonistic activity against Fusarium oxysporum f. sp. cubense revealed that the proportion of antagonistic streptomycetes in healthy roots was higher than that in wilting roots (P < 0.01), but no difference was found between antagonistic strains isolated from healthy and wilting leaves. The potential biological control of Panama disease of banana by endophytic streptomycetes, especially Streptomyces griseorubiginosus-like strains was discussed.