Furuya A, Abe S, Kinoshita S. Production of nucleic acid-related substances by fermentative processes. XIX. Accumulation of 5'-inosinic acid by a mutant of Brevibacterium ammoniagenes.
Appl Microbiol 1968;
16:981-7. [PMID:
5664127 PMCID:
PMC547573 DOI:
10.1128/am.16.7.981-987.1968]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The accumulation of 5'-inosinic acid (IMP) by a mutant, KY 13102, induced from Brevibacterium ammoniagenes ATCC 6872 by ultraviolet light irradiation, was examined. Although growth was stimulated by adenine or adenosine, the microorganism showed fair growth in the medium containing amino acids but no adenine. Among six kinds of natural nutrients tested, meat extract and Casamino Acids were suitable for the accumulation of IMP. Manganese ion strongly affected growth, the accumulation of IMP and hypoxanthine, and cell morphology. Among amino acids tested, L-methionine, L-proline, and L-valine stimulated IMP accumulation. In the medium containing 1.0 g of L-proline per liter, 12.8 mg of IMP per ml was accumulated. The mechanism of IMP accumulation by the mutant is discussed.
Collapse