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从……分离出的根际芽孢杆菌对……的抗真菌活性

Antifungal Activity of Rhizosphere Bacillus Isolated from Against .

作者信息

Zou Qiang, Zhang Yumeng, Niu Xinxiang, Yang Hongmei, Chu Min, Wang Ning, Bao Huifang, Zhan Faqiang, Yang Rong, Lou Kai, Shi Yingwu

机构信息

Institute of Microbiology, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China.

College of Life and Science and Technology, Xinjiang University, Urumqi 830046, China.

出版信息

Microorganisms. 2024 Oct 30;12(11):2189. doi: 10.3390/microorganisms12112189.

DOI:10.3390/microorganisms12112189
PMID:39597579
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11596436/
Abstract

The serious impact of on jujube black spot disease has seriously affected the quality and yield of jujube, constraining the sustainable development of the jujube industry. The purpose of this study was to isolate and screen highly effective biocontrol strains of jujube black spot disease from jujube rhizosphere soil. Thirty-three soil samples were collected from four regions in southern Xinjiang. The strains with antagonistic effects were isolated and screened by the dilution spread method and plate confrontation method and identified by morphological, physiological, and biochemical characteristics, as well as 16S rDNA, gyrB, and rpoB gene sequences. Indoor and field efficacy experiments were conducted to determine their biocontrol effect. A total of 110 strains with antibacterial activity were selected, and one strain, Bacillus velezensis 26-8, with a stable antagonistic effect was further tested. Biological characteristic experiments showed that strain 26-8 could grow at NaCl concentrations of 0.5-10% and pH 4.0-9.0. The biocontrol experiment results showed that Bacillus velezensis 26-8 could achieve an 89.83% control effect against black spot disease. In conclusion, strain 26-8 has good salt and alkali tolerance, exerts a good control effect on jujube black spot disease, and is worthy of further study.

摘要

对枣黑斑病的严重影响已严重影响枣的品质和产量，制约了枣产业的可持续发展。本研究的目的是从枣根际土壤中分离和筛选对枣黑斑病高效的生防菌株。从新疆南部四个地区采集了33份土壤样品。采用稀释涂布法和平板对峙法分离筛选具有拮抗作用的菌株，并通过形态学、生理生化特征以及16S rDNA、gyrB和rpoB基因序列进行鉴定。进行室内和田间药效试验以确定其生防效果。共筛选出110株具有抗菌活性的菌株，进一步对一株拮抗作用稳定的菌株贝莱斯芽孢杆菌26-8进行了测试。生物学特性试验表明，菌株26-8能在NaCl浓度为0.5-10%、pH值为4.0-9.0的条件下生长。生防试验结果表明，贝莱斯芽孢杆菌26-8对黑斑病的防效可达89.83%。综上所述，菌株26-8具有良好的耐盐碱能力，对枣黑斑病防治效果良好，值得进一步研究。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/bd88967977fb/microorganisms-12-02189-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/f52bc9643682/microorganisms-12-02189-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/f853a25fc626/microorganisms-12-02189-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/9bf6da2774dc/microorganisms-12-02189-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/c07ec0718781/microorganisms-12-02189-g004a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/8984fc0e9e61/microorganisms-12-02189-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/183e89bbf67b/microorganisms-12-02189-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/2f7fe1bbcf92/microorganisms-12-02189-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/961c47febd62/microorganisms-12-02189-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/2dcd246f92f0/microorganisms-12-02189-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/bd88967977fb/microorganisms-12-02189-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/f52bc9643682/microorganisms-12-02189-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/f853a25fc626/microorganisms-12-02189-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/9bf6da2774dc/microorganisms-12-02189-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/c07ec0718781/microorganisms-12-02189-g004a.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/8984fc0e9e61/microorganisms-12-02189-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/183e89bbf67b/microorganisms-12-02189-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/2f7fe1bbcf92/microorganisms-12-02189-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/961c47febd62/microorganisms-12-02189-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/2dcd246f92f0/microorganisms-12-02189-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1b42/11596436/bd88967977fb/microorganisms-12-02189-g010.jpg

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