In this research, the co-culture of the host plant Dendrobium officinale, the endophyte Irpex lacteus, and the pathogenic Nigrospora oryzae was examined to study the interaction of host and endophytes by the production of metabolite. A rare butenolide, named nigrolactin (1), was isolated and its structure determined by spectral analysis. Compound 1 showed significant antifungal activity against Aspergillus fumigate with MIC of 1 μg/mL. The results showed that the interaction of host-endophyte-phytopathogen in co-culture can induce the production of new antifungal metabolites.
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ACKNOWLEDGMENT
This project was supported by the National Natural Science Foundation of China (81960640, 81660582, and 81560571), projects of the Yunling Scholars of Yunnan Province and Donglu Scholars of Yunnan University, the Program for Changjiang Scholars and Innovative Research Team in University (IRT-17R94), and the Yunnan University′s Research Innovation Fund for Graduate Students (2019z047, 2019188). The NMR and MS spectra were measured at the Advance Analysis and Measurement Center of Yunnan University.
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Published in Khimiya Prirodnykh Soedinenii, No. 3, May–June, 2022, pp. 350–351.
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Yang, S., Su, S., Cen, RH. et al. A New Butenolide from the Co-Culture of the Endophyte Irpex lacteus, the Phytopathogenic Nigrospora oryzae, and the Host Dendrobium officinale. Chem Nat Compd 58, 404–406 (2022). https://doi.org/10.1007/s10600-022-03693-y
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DOI: https://doi.org/10.1007/s10600-022-03693-y