Abstract
The metabolic profile of Streptomyces sp. strain C34, isolated from the Chilean hyper-arid Atacama Desert soil, is dependent on the culture media used for its growth. The application of an OSMAC approach on this strain using a range of cultivation media resulted in the isolation and identification of three new compounds from the rare class of 22-membered macrolactone polyketides, named chaxalactins A–C (1–3). In addition, the known compounds deferroxamine E (4), hygromycin A (5), and 5″-dihydrohygromycin A (6) were detected. The isolated compounds were characterized by NMR spectroscopy and accurate mass spectrometric analysis. Compounds 1–3 displayed strong activity against Gram-positive but weak activity Gram-negative strains tested.
Original language | English |
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Pages (from-to) | 1965-1971 |
Number of pages | 7 |
Journal | Journal of Natural Products |
Volume | 74 |
Issue number | 9 |
DOIs | |
Publication status | Published - 31 Aug 2011 |
Externally published | Yes |