期刊
CURRENT MICROBIOLOGY
卷 78, 期 8, 页码 3124-3132出版社
SPRINGER
DOI: 10.1007/s00284-021-02578-7
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- Ministry of Education and Science of the Russian Federation [AAAA-A18-118031390148-1, 121021600147-1, FMEG-2021-0003]
Bacillus mojavensis PS17 shows antifungal properties and produces various hydrolytic enzymes that inhibit the growth of multiple phytopathogenic fungi. Additionally, the strain demonstrates drought tolerance and moderate halotolerance, with the potential to reduce lesions on tomato seedlings, making it a promising biocontrol agent for agricultural use.
Plant-protecting Bacillus sp. strains used as biocontrol agents frequently produce metabolites inhibiting phytopathogenic fungi. Recently, the search for a novel biocontrol agent with a wide spectrum of disease control drew attention to Bacillus subtilis and their related species, including Bacillus mojavensis. In this study, we determined the antifungal properties of the endophytic B. mojavensis PS17 isolated from wheat seeds. Metabolites produced by B. mojavensis PS-17 inhibit the growth of Fusarium graminearum, Fusarium oxysporum, Fusarium chlamydosporum, Ascochyta pisi, Alternaria alternate, Sclerotinia sclerotiorum, Verticillium dahliaee, and Epicoccum nigrum strains. B. mojavensis strain PS17 produces several hydrolytic enzymes, such as chitinase, beta-glucanase, cellulase, lipase, and protease. Additionally, strain B. mojavensis PS17 demonstrates drought tolerance under osmotic pressure of -2.2 MPa and a moderate halotolerance in 5% (w/v) of NaCl. B. mojavensis PS17 on tomato seedlings was able to reduce lesions of Forl ZUM2407 by 48.11% +/- 1.07, showing the potentials of B. mojavensis PS17 to be adapted as a biocontrol agent for agricultural use.
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