首页|A New Chlorinated Tetralone from Co-Culture of Insect-Pathogenic Beauveria bassiana and Phytopathogenic Nigrospora oryzae

A New Chlorinated Tetralone from Co-Culture of Insect-Pathogenic Beauveria bassiana and Phytopathogenic Nigrospora oryzae

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In this study, the co-culture of Nigrospora oryzae and Beauveria bassiana, the pathogenic endophytes in the seeds of Dendrobium officinale, were examined for their antagonistic relationship by the production of metabolite. One new chlorotetralone (1) and five known compounds, murranoic acid A (2), 9,12,13-trihydroxy-10-octadecenoic acid (3), 3,3 '-methylenebis(4-hydroxy-6-methyl-2H-pyran-2-one) (4), sclerin (5), and (4S)-4,6,8-trihydroxy-3,4-dihydro-1(2H)-naphthalen-1-one (6), were isolated. Compounds 1-5 showed antifungal activity against B. bassiana with MICs of 256, 128, 2, 32, and 64 mu g/mL, and N. oryzae with MICs of 64, 256, 256, 256, and 64 mu g/mL. Compound 4 showed significant antifungal activity against co-culture of B. bassiana and N. oryzae with MIC at 1 mu g/mL.

Nigrospora oryzaeBeauveria bassianacocultureantifungal metaboliteinteraction

Ding, Zhong-Tao、Zhang, Zhuo-Xi、Yin, Hai-Yue、Yang, Ya-Bin、Wang, Dai-Li、Zhao, Tong-De、Wang, Cui-Fang、Yang, Xue-Qiong

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Yunnan Univ, Funct Mol Anal & Biotransformat Key Lab Univ Yunn, Sch Chem Sci & Technol,Minist Educ & Yunnan Prov, Key Lab Med Chem Nat Resource, Kunming 650091, Yunnan, Peoples R China

2021

Chemistry of Natural Compounds

Chemistry of Natural Compounds

CCR
ISSN:0009-3130
年,卷(期):2021.57(2)
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