Abstract
The jadomycins are a unique family of benzoxazolophenanthridine antibiotics produced by Streptomyces venezuelae ISP5230 following heat or ethanol shock or phage infection. We have modified the culture conditions by altering the carbon source, buffer, inoculum size, and timing of ethanol shock, thereby reducing growing times and improving jadomycin B production. Our optimized conditions use glucose as the carbon source, MOPS as buffer, low concentrations of phosphate, a defined inoculum concentration and an immediate ethanol shock to induce jadomycin B production; results that contrast previous studies. The altered media will facilitate the isolation of related jadomycin B congeners.
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Acknowledgements
We thank the Atlantic Chapter of the Canadian Breast Cancer Foundation, the Pharmacy Endowment Fund at Dalhousie University, the Canadian Institutes for Health Research and the Canada Foundation for Innovation for financial support.
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Jakeman, D.L., Graham, C.L., Young, W. et al. Culture conditions improving the production of jadomycin B. J IND MICROBIOL BIOTECHNOL 33, 767–772 (2006). https://doi.org/10.1007/s10295-006-0113-4
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DOI: https://doi.org/10.1007/s10295-006-0113-4