title: Design of mineral medium for growth of Actinomadura sp. ATCC 39727, producer of the glycopeptide A40926: effects of calcium ions and nitrogen sources.
abstract: Actinomadura sp. ATCC 39727 produces the glycopeptide antibiotic A40926, structurally similar to teicoplanin, with significant activity against Neisseria gonorrhoeae and precursor of the semi-synthetic antibiotic dalbavancin. In this study the production of A40926 by Actinomadura under 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 of Actinomadura. 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 when L-glutamine or L-asparagine are used as nitrogen sources instead of ammonium salts.
authors.affiliation: Institute of Microbiology, Czech Academy of Science, Prague, Czech Republic.
authors.forename: Zuzana
authors.initials: Z
authors.lastname: Technikova-Dobrova
authors.forename: Fabrizio
authors.initials: F
authors.lastname: Damiano
authors.forename: Salvatore M
authors.initials: SM
authors.lastname: Tredici
authors.forename: Giovanni
authors.initials: G
authors.lastname: Vigliotta
authors.forename: Roberta
authors.initials: R
authors.lastname: di Summa
authors.forename: Luigi
authors.initials: L
authors.lastname: Palese
authors.forename: Anna
authors.initials: A
authors.lastname: Abbrescia
authors.forename: Nestor
authors.initials: N
authors.lastname: Labonia
authors.forename: Gabriele V
authors.initials: GV
authors.lastname: Gnoni
authors.forename: Pietro
authors.initials: P
authors.lastname: Alifano
mesh_terms: D000192:Actinomycetales / Q000166:cytology / Q000254:growth & development* / Q000378:metabolism*; D000900:Anti-Bacterial Agents / Q000096:biosynthesis*; D001216:Asparagine / Q000378:metabolism; D018533:Biomass; D001709:Biotechnology / Q000379:methods; D002118:Calcium / Q000378:metabolism*; D003470:Culture Media / Q000737:chemistry*; D005285:Fermentation; D005947:Glucose / Q000378:metabolism; D005973:Glutamine / Q000378:metabolism; D006020:Glycopeptides; D008856:Microscopy, Fluorescence; D009584:Nitrogen / Q000378:metabolism*; D010710:Phosphates / Q000378:metabolism; D000644:Quaternary Ammonium Compounds / Q000378:metabolism; D017334:Teicoplanin / Q000031:analogs & derivatives
chemical_list: C054981:A 40926; D000900:Anti-Bacterial Agents; D003470:Culture Media; D006020:Glycopeptides; D010710:Phosphates; D000644:Quaternary Ammonium Compounds; D005973:Glutamine; D017334:Teicoplanin; D001216:Asparagine; D005947:Glucose; D009584:Nitrogen; D002118:Calcium