RRC ID 15614
著者 Takaki K, Fushinobu S, Kim SW, Miyahara M, Wakagi T, Shoun H.
タイトル Streptomyces griseus enhances denitrification by Ralstonia pickettii K50, which is possibly mediated by histidine produced during co-culture.
ジャーナル Biosci Biotechnol Biochem
Abstract Ralstonia pickettii K50 (strain K50) is a denitrifying bacterium that produces low levels of N(2)O under aerobic conditions. In this study, we found that co-culturing of strain K50 with Streptomyces griseus significantly enhanced the denitrification activity of strain K50 in an artificial wastewater (AWW) system. Most factors that enhance denitrification activity were in the high molecular weight fraction of the cell-free broth of S. griseus, and were suggested to be extracellular proteases. Further investigation revealed that the cultivation of strain K50 in protease-treated AWW medium fully enhanced denitrification, and that a shortage of amino acids in the medium limited it. Among the 20 standard amino acids tested, only histidine had a significant effect in inducing denitrification by strain K50. Our results indicate that histidine is a novel inducer of bacterial denitrification.
巻・号 72(1)
ページ 163-70
公開日 2008-1-1
DOI 10.1271/bbb.70528
PII JST.JSTAGE/bbb/70528
PMID 18175905
MeSH Bacteriological Techniques / methods* Culture Media Histidine / pharmacology* Kinetics Medical Waste Disposal* Nitrates / metabolism* Nitrites / metabolism Nitrous Oxide / metabolism Ralstonia pickettii / drug effects Ralstonia pickettii / growth & development Ralstonia pickettii / metabolism* Sewage Streptomyces griseus / drug effects Streptomyces griseus / growth & development Streptomyces griseus / metabolism*
IF 1.516
引用数 3
WOS 分野 FOOD SCIENCE & TECHNOLOGY CHEMISTRY, APPLIED BIOTECHNOLOGY & APPLIED MICROBIOLOGY BIOCHEMISTRY & MOLECULAR BIOLOGY
リソース情報
一般微生物 JCM 4783 JCM 5078