Chinoketides A and B, Two New Antimicrobial Polyketides from the Endophytes of Distylium chinense with the “Black-Box” Co-culture Method
10.20307/nps.2018.24.3.159
- Author:
Meng Meng LV
1
;
Ming Hui TAN
;
Li Wen LU
;
Rong Hua ZHANG
;
Zhi Yong GUO
;
Cheng Xiong LIU
;
Jin YANG
;
Kun ZOU
;
Peter PROKSCH
Author Information
1. Hubei Key Laboratory of Natural Product Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, 443002, People's of Republic China. zhyguoctgu@foxmail.com
- Publication Type:Original Article
- Keywords:
Polyketides;
“black-box” Co-culture;
Distylium chinense;
Antimicrobial activity;
Structural elucidation
- MeSH:
Coculture Techniques;
Endophytes;
Methods;
Pectobacterium carotovorum;
Plants;
Polyketides
- From:Natural Product Sciences
2018;24(3):159-163
- CountryRepublic of Korea
- Language:English
-
Abstract:
Two new polyketides, chinoketides A and B (1 – 2) with a known compound xylarphthalide A (3), were isolated from the solid medium of the endophytes from the leaves of the relic plant Distylium chinense with the “black-box” co-culture method, and the structures of two new compounds were elucidated by NMR, MS and CD spectra. And the absolute configurations of chinoketides A (1) and B (2) were determined as 2R,3R,8S and 5R,6S by calculating their ECD spectra to compare with the experimental CD spectra. Finally, the antimicrobial activities were evaluated to Erwinia carotovora sub sp. Carotovora (Jones) Bersey et al, and the results showed that compounds 1 – 3 displayed the antimicrobial activities with MIC value at 20.5, 30.4 and 10.2 µg/mL.
