The Structure of Qingjingmycin A Novel Peptide-Type Metabolite of a Hybrid Strain FM3–32 Derived from<i>Streptomyces qingfengmyceticus</i>and<i>S. hydroscopicus Var. jinggangensis</i>

Wu, Hou‐Ming; Tao, Xiaowan; Lao, Xia-Fei; Ma, Ke; Zhou, Hongmin; Dai, Li‐Xin; Zheng, Youxia; Xu, Xiaoxue; Zhang, Tinglan

doi:10.1080/10575639408044040

Cited by 2 publications

(1 citation statement)

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“…Actinomycetes are an important microbial resource and are widely distributed in nature (Sharma et al, 2014). To date, among the active compounds identified from microbial sources, about two-thirds are produced by actinomycetes, including validamycin (Yu et al, 2005), kasugamycin (Ikeno et al, 2002), and qingfengmycin (Wu et al, 1994), which are commonly used in agriculture (Bérdy, 2005). Many secondary metabolites in actinomycetes can be classified into different groups, such as polyketones, non-ribosomal peptides, terpenes, and aldehydes.…”

Section: Introductionmentioning

confidence: 99%

Identification of a novel strain, Streptomyces blastmyceticus JZB130180, and evaluation of its biocontrol efficacy against Monilinia fructicola

Wu²,

Wang³

et al. 2019

J. Zhejiang Univ. Sci. B

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Peach brown rot, caused by Monilinia fructicola, is one of the most serious peach diseases. A strain belonging to the Actinomycetales, named Streptomyces blastmyceticus JZB130180, was found to have a strong inhibitory effect on M. fructicola in confrontation culture. Following the inoculation of peaches in vitro, it was revealed that the fermentation broth of S. blastmyceticus JZB130180 had a significant inhibitory effect on disease development by M. fructicola. The fermentation broth of S. blastmyceticus JZB130180 had an EC 50 (concentration for 50% of maximal effect) of 38.3 µg/mL against M. fructicola, as determined in an indoor toxicity test. Analysis of the physicochemical properties of the fermentation broth revealed that it was tolerant of acid and alkaline conditions, temperature, and ultraviolet radiation. In addition, chitinase, cellulase, and protease were also found to be secreted by the strain. The results of this study suggest that S. blastmyceticus JZB130180 may be used for the biocontrol of peach brown rot.

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