Streptomyces tamarix sp. nov.: antagonism against Alternaria gaisen producing streptochlorin, isolated from Tamarix root soil

• Published in: Frontiers in microbiology 2023, Vol.14, p.1273842-1273842
• Main Authors: Chen, Yi-Huang, Wu, Yi Zheng, Liu, Qin, Xia, Zhanfeng, Wang, JianMing, Luo, Xiao-Xia
• Format: Article
• Language: English
• Subjects: Alternaria gaisen; antagonistic; antibacterial mechanism; streptochlorin; Streptomyces
• ISSN: 1664-302X; 1664-302X
• DOI: 10.3389/fmicb.2023.1273842

By the end of 2021, the pear yield in Xinjiang reached 1,795,900 tons, accounting for 1/9 of the country. Pear black spot, caused by disease, has had a significant impact on the pear industry. can infect nearly all pear plants, resulting in black spots on the fruit that negatively affect both yield and quality. This study focused on the TRM76323 strain of Streptomyces, which was isolated from the soil of in Xinjiang Province. Through a multiphase classification and identification method, the genetic classification status of the antagonistic strains was determined. The study also identified the antibacterial active components of streptochlorin using modern isolation and purification techniques. The antagonistic activity of Streptomyces against was analyzed through and experiments. This research not only expanded the resource bank of antagonistic microorganisms in extreme environments in Xinjiang, but also identified active components that could contribute to the development of new drug lead compounds. Additionally, this study presents a novel approach for the prevention and control of pear black spot disease.