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Mar. Drugs 2016, 14(5), 84;

Ergosterols from the Culture Broth of Marine Streptomyces anandii H41-59

College of Pharmacy, Jinan University, Guangzhou 510632, China
Institute of Plant Protection, Guangdong Academy of Agricultural Sciences, Guangzhou 510632, China
Author to whom correspondence should be addressed.
Academic Editor: Vassilios Roussis
Received: 22 February 2016 / Revised: 19 April 2016 / Accepted: 21 April 2016 / Published: 4 May 2016
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An actinomycete strain, H41-59, isolated from sea sediment in a mangrove district, was identified as Streptomyces anandii on the basis of 16S rDNA gene sequence analysis as well as the investigation of its morphological, physiological and biochemical characteristics. Three new ergosterols, ananstreps A–C (1–3), along with ten known ones (4–13), were isolated from the culture broth of this strain. The gross structures of these new compounds were elucidated on the basis of extensive analysis of spectroscopic data, including HR-ESI-MS, and NMR. The cytotoxicities of these isolates against human breast adenocarcinoma cell line MCF-7, human glioblastoma cell line SF-268, and human lung cancer cell line NCI-H460 and their antibacterial activities in inhibiting the growth of Candida albicans and some other pathogenic microorganisms were tested. Compounds 3–8, 10 and 11 displayed cytotoxicity with IC50 values in a range from 13.0 to 27.8 μg/mL. However, all the tested compounds showed no activity on C. albicans and other bacteria at the test concentration of 1 mg/mL with the paper disc diffusion method. View Full-Text
Keywords: Streptomyces anandii; ergosterols; strain identification; ananstreps A–C; cytotoxicity Streptomyces anandii; ergosterols; strain identification; ananstreps A–C; cytotoxicity

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Zhang, Y.-M.; Li, H.-Y.; Hu, C.; Sheng, H.-F.; Zhang, Y.; Lin, B.-R.; Zhou, G.-X. Ergosterols from the Culture Broth of Marine Streptomyces anandii H41-59. Mar. Drugs 2016, 14, 84.

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