Isolation of a fosfomycin-hypersensitive mutant and production of α-d-glucose-l-phosphate from Bacillus sp. BA-3796 screened by its use

Autor: Masaaki Takano, Takashi Kamogashira, Michiharu Sugawara
Rok vydání: 1988
Předmět:
Zdroj: Journal of Fermentation Technology. 66:649-655
ISSN: 0385-6380
DOI: 10.1016/0385-6380(88)90069-6
Popis: The development of a very sensitive and highly specific screening method for detection of new cell wall inhibitors of the fosfomycin type is described. A fosfomycin-hypersensitive mutant, f-360, was isolated from Staphylococcus aureus Newman by selection with fosfomycin, an antibiotic that inhibits synthesis of the bacterial cell wall. The mutant f-360 was 50-fold more sensitive than the parent strain to fosfomycin. The mutant was constitutive for the hexose phosphate transport system. Using the organism in screening, BA-3796, which had an antibacterial activity against mutant f-360 was found to be produced by a bacterium designated Bacillus sp. BA-3796. Starch and beef extract were the most suitable carbon and nitrogen sources for BA-3796 production and the amount of BA-3796 reached 3 g/ l at a maximum level. The purified BA-3796 was identified as α- d -glucose-l-phosphate by its various physiochemical properties. α- d -Glucose-1-phosphate showes an antibacterial activity against Staphylococci in the presence of a slight amount pf α- d -glucose-6-phosphate.
Databáze: OpenAIRE