Zopfiellasins A–D,Two Pairs of Epimeric Cytochalasins from Kiwi-Associated Fungus Zopfiella sp. and Their Antibacterial Assessment |
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| Authors: | Jie-Yu Zhang Juan He Zheng-Hui Li Tao Feng Ji-Kai Liu |
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| Affiliation: | 1.School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China; (J.-Y.Z.); (J.H.); (Z.-H.L.);2.National Demonstration Center for Experimental Ethnopharmacology Education, South-Central University for Nationalities, Wuhan 430074, China |
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| Abstract: | In our continuous search for antibacterial agents against Pseudomonas syringae pv. actinidiae (Psa) from kiwi-associated fungi, two pairs of epimeric cytochalasins, zopfiellasins A–D (1–4), were characterized from the fungus Zopfiella sp. The structures were established on the basis of spectroscopic data analysis, while the absolute configurations were determined by single-crystal X-ray diffraction. Compounds 1 and 3 exhibited antibacterial activity against Psa with MIC values of 25 and 50 μg/mL, respectively. This is the first report of anti-Psa activity of cytochalasin derivatives. |
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| Keywords: | Zopfiella sp. cytochalasins Pseudomonas syringae pv. actinidiae antibacterial |
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