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Endophyte Bacillus vallismortis BL01 to Control Fungal and Bacterial Phytopathogens of Tomato (Solanum lycopersicum L.) Plants

文献类型： 外文期刊

作者： Chebotar, Vladimir K. 1 ; Gancheva, Maria S. 1 ; Chizhevskaya, Elena P. 1 ; Erofeeva, Anastasia V. 1 ; Khiutti, Alexander V. 3 ; Lazarev, Alexander M. 3 ; Zhang, Xiuhai 4 ; Xue, Jing 4 ; Yang, Chunhong 4 ; Tikhonovich, Igor A. 1 ;

作者机构： 1.All Russian Res Inst Agr Microbiol, Podbelskogo Hwy,3,Pushkin, St Petersburg 196608, Russia

2.St Petersburg State Univ, Fac Biol, Dept Genet & Biotechnol, Univ Skaya Embankment 9, St Petersburg 199034, Russia

3.All Russian Res Inst Plant Protect, Podbelskogo Hwy,3,Pushkin, St Petersburg 196608, Russia

4.Beijing Acad Agr & Forestry Sci, Inst Grassland Flowers & Ecol, 9 Shuguang Garden Middle Rd, Beijing 100097, Peoples R China

5.Chinese Acad Sci, Inst Bot, 20 Nanxincun, Beijing 100093, Peoples R China

关键词： Bacillus vallismortis; colonization ability; in vitro biocontrol activity; field tests; bacterial leaf spot; late blight; genome analysis

期刊名称：HORTICULTURAE （ 影响因子：3.0； 五年影响因子：3.2 ）

ISSN：

年卷期： 2024 年 10 卷 10 期

页码：

收录情况： SCI

摘要： Some strains of Bacillus vallismortis have been reported to be efficient biocontrol agents against tomato pathogens. The aim of our study was to assess the biocontrol ability of the endophytic strain BL01 Bacillus vallismortis through in vitro and field trials, as well as to verify its plant colonization ability and analyze the bacterial genome in order to find genes responsible for the biocontrol activity. We demonstrated in a gnotobiotic system and by confocal laser microscopy that the endophytic strain BL01 was able to colonize the endosphere and rhizosphere of tomato, winter wheat and oilseed rape. In vitro experiments demonstrated the inhibition activity of BL01 against a wide range of phytopathogenic fungi and bacteria. BL01 showed biological efficacy in two-year field experiments with tomato plants against black bacterial spotting by 40-70.8% and against late blight by 47.1% and increased tomato harvest by 24.9% or 10.9 tons per hectare compared to the control. Genome analysis revealed the presence of genes that are responsible for the synthesis of biologically active secondary metabolites, which could be responsible for the biocontrol action. Strain BL01 B. vallismortis can be considered an effective biocontrol agent to control both fungal and bacterial diseases in tomato plants.

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