RRC ID 29329
著者 Mujahid M, Sasikala Ch, Ramana ChV.
タイトル Carbon catabolite repression-independent and pH-dependent production of indoles by Rubrivivax benzoatilyticus JA2.
ジャーナル Curr Microbiol
Abstract Rubrivivax benzoatilyticus JA2 produces indole derivatives (indoles) from aniline, anthranilate or L-tryptophan. Glucose repressed indole production in R. benzoatilyticus JA2, while malate had no effect. Growth of R. benzoatilyticus JA2 on glucose resulted in decrease in culture pH (6.4) compared with malate (8.4). Growth of R. benzoatilyticus JA2 on sugar carbon sources decreased culture pH (6.4-6.6) and indole production. Further, culture pH of 6.4 repressed the indole production, and pH 8.4 promoted the production irrespective of carbon sources used for growth. Moreover, correlation between indole production and culture pH was observed, where acidic pH inhibited indole production, while alkaline pH promoted the production, suggesting the role of pH in indole production. Tryptophan-catabolizing enzyme activities are significantly high in malate-grown cultures (pH 8.4) compared with that of the glucose (pH 6.4)-grown cultures and corroborated well with indole production, indicating their role in indole production. These results confirm that indole production in R. benzoatilyticus JA2 is pH dependent rather than carbon catabolite repression.
巻・号 67(4)
ページ 399-405
公開日 2013-10-1
DOI 10.1007/s00284-013-0378-6
PMID 23666086
MeSH Betaproteobacteria / chemistry Betaproteobacteria / metabolism* Carbon / metabolism* Catabolite Repression Culture Media / chemistry Culture Media / metabolism Hydrogen-Ion Concentration Indoles / metabolism* Tryptophan / metabolism
IF 1.746
引用数 1
WOS 分野 MICROBIOLOGY
リソース情報
一般微生物 JCM 13220