One new macrolide myxotrilactone A (1), along with six known compounds (2–7), were isolated from the extract of solid-substrate cultures of the endolichenic fungus Myxotrichum sp. by various chromatography methods. The planar structure of compound 1 was determined by HR-ESI-MS and NMR data, and its relative and absolute configurations were established by NOESY experiment and comparison with the known compound 2. Selected isolates were evaluated for their allelopathic activities, and compounds 1 and 2 significantly retarded shoot elongation of Arabidopsis thaliana.
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Acknowledgment
This work was financially supported by the National Natural Science Foundation of China (No. 31400110), the PUMC Youth Fund and the Fundamental Research Funds for the Central Universities (No. 3332015146), the Program for Innovative Research Team in IMPLAD (IT1305), and the Special Fund for Basic Scientific Research from Yunnan Branch of IMPLAD at CAMS & PUMC (YZYN-15-03).
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Published in Khimiya Prirodnykh Soedinenii, No. 4, July–August, 2018, pp. 542–544.
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Yuan, C., Ding, G., Wang, H. et al. Phytotoxic Secondary Metabolites from the Endolichenic Fungus Myxotrichum sp.. Chem Nat Compd 54, 638–641 (2018). https://doi.org/10.1007/s10600-018-2435-7
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DOI: https://doi.org/10.1007/s10600-018-2435-7