| Autor: |
Technikova-Dobrova, Zuzana, Damiano, Fabrizio, Tredici, Salvatore M., Vigliotta, Giovanni, Di Summa, Roberta, Palese, Luigi, Abbrescia, Anna, Labonia, Nestor, Gnoni, Gabriele V., Alifano, Pietro |
| Předmět: |
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| Zdroj: |
Applied Microbiology & Biotechnology; Oct2004, Vol. 65 Issue 6, p671-677, 7p, 1 Diagram, 2 Charts, 3 Graphs |
| Abstrakt: |
Actinomadurasp. ATCC 39727 produces the glycopeptide antibiotic A40926, structurally similar to teicoplanin, with significant activity againstNeisseria gonorrhoeaeand precursor of the semi-synthetic antibiotic dalbavancin. In this study the production of A40926 byActinomaduraunder a variety of growth conditions was investigated. The use of chemically defined mineral media allowed us to analyze the influence of carbon and nitrogen sources, phosphate, ammonium and calcium on the growth and the antibiotic productivity ofActinomadura. We confirm recent data [Gunnarsson et al. (2003) J Ind Microbiol Biotechnol 30:150-156] that low initial concentrations of phosphate and ammonium are beneficial for growth and A40926 production, and we provide new evidence that the production of A40926 is depressed by calcium, but promoted whenl-glutamine orl-asparagine are used as nitrogen sources instead of ammonium salts. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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