Bacillus safensis LS01 provides biological control of potato common scab with potential effects from secondary metabolites
文献类型： 外文期刊
作者： Wang, Lixue 1 ; Liu, Song 1 ; Liu, Lihe 1 ; Wang, Lichun 2 ; Pan, Yang 2 ; Fu, Xuepeng 1 ;
作者机构： 1.Qiqihar Univ, Dept Life Sci & Agroforestry, Qiqihar 161000, Peoples R China
2.Heilongjiang Acad Agr Sci, Keshan Branch, Qiqihar 161000, Peoples R China
3.Minist Agr & Rural Affairs, Key Lab Potato Biol & Genet, Qiqihar 161000, Peoples R China
4.Agr Microbial Preparat Industrializat Technol Inno, Qiqihar 161000, Peoples R China
关键词： Bacillus safensis LS01; Streptomyces scabies; antibacterial properties; biological control
期刊名称：JOURNAL OF APPLIED MICROBIOLOGY （ 影响因子：3.2； 五年影响因子：3.8 ）
ISSN： 1364-5072
年卷期： 2025 年 135 卷 12 期
页码：
收录情况： SCI
摘要： Aims Potato common scab (CS), caused by pathogenic Streptomyces, is a devastating disease affecting potato crops worldwide. Antagonistic microorganisms have been used as biological control agents to inhibit Streptomyces scabies and reduce the use of synthetic pesticides. However, identifying beneficial microorganisms for controlling CS remains undetermined.Methods and Results Strain LS01 was isolated from the geocaulosphere soils of healthy potato tubers. In vitro and pot experiments demonstrated that strain LS01 significantly inhibited the mycelial growth and sporulation of S. scabies, thereby reducing the severity of CS. Sequencing of the 16S rRNA of LS01 indicated that the strain belonged to the species Bacillus safensis. Whole-genome sequencing, metabolomic analysis with liquid chromatograph mass spectrometer, and uultra-high performance liquid chromatography with quadrupole time-of-flight mass spectrometry analyses indicated that hygromycin B and plantazolicin may be the active secondary metabolites by which B. safensis LS01 inhibits S. scabies.Conclusions Bacillus safensis LS01 is a potential biocontrol agent for CS, with its secondary metabolites exerting effective inhibitory effects.
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