Biological control of peanut southern blight (Sclerotium rolfsii) by the strain Bacillus pumilus LX11

Biological control of peanut southern blight (Sclerotium rolfsii) by the strain Bacillus pumilus LX11
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短小芽孢杆菌 LX11 菌株对花生白疫病(Sclerotium rolfsii)的生物防治

DOI:
10.1080/09583157.2020.1725441
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发表时间:
2020-02
影响因子:
1.4
通讯作者:
Wan Shubo
Wan Shubo
中科院分区:
农林科学4区
文献类型:
--
作者:
Xu Manlin;Zhang Xia;Yu Jing;Guo Zhiqing;Wu Juxiang;Li Xinguo;Chi Yucheng;Wan Shubo

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摘要由罗尔夫菌核菌(Sclerotium rolfsii)引起的花生南枯萎病对全世界的花生生产造成了重大的经济损失。根据花生根际分离菌株LX11的表型特征、16S核糖体RNA和DNA旋切酶(gyrB)序列的β-亚基鉴定为矮芽孢杆菌(Bacillus pumilus)。LX11对罗氏葡萄球菌具有显著的抑菌活性。田间试验表明,LX11对罗氏弧菌的防治效果达到65%以上。LX11可作为花生南枯病的潜在生物防治品系。
ABSTRACT Peanut southern blight caused by Sclerotium rolfsii is known to cause significant economic losses to peanut production worldwide. The bacterial strain LX11 isolated from the peanut (Arachis hypogaea) rhizosphere was identified as Bacillus pumilus based on its phenotypic features, 16S ribosomal RNA and β-subunit of DNA gyrase (gyrB) sequence. LX11 showed significant antimicrobial activities against S. rolfsii. The treatment application of LX11 against S. rolfsii was shown to reach over 65% in field trials. LX11 may be useful as a potential biocontrol strain for southern blight of peanut.
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