Response of the Microaerophilic Bifidobacterium Species, B. boum and B. thermophilum , to Oxygen | Zendy

Shinji Kawasaki | Zendy; Tsuyoshi Mimura | Zendy; Takumi Satoh | Zendy; Kouji Takeda | Zendy; Youichi Niimura | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Response of the Microaerophilic Bifidobacterium Species, B. boum and B. thermophilum , to Oxygen

Author(s) -

Shinji Kawasaki,

Tsuyoshi Mimura,

Takumi Satoh,

Kouji Takeda,

Youichi Niimura

Publication year - 2006

Publication title -

applied and environmental microbiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.552

H-Index - 324

eISSN - 1070-6291

pISSN - 0099-2240

DOI - 10.1128/aem.01216-06

Subject(s) - microaerophile , catalase , actinomycetaceae , biology , bifidobacterium , bifidobacterium bifidum , microbiology and biotechnology , oxygen , bacteria , biochemistry , chemistry , enzyme , fermentation , lactobacillus , genetics , organic chemistry

We investigated the effects of O2 on Bifidobacterium species using liquid shaking cultures under various O2 concentrations. Although most of the Bifidobacterium species we selected showed O2 sensitivity, two species, B. boum and B. thermophilum, demonstrated microaerophilic profiles. The growth of B. bifidum and B. longum was inhibited under high-O2 conditions accompanied by the accumulation of H2O2 in the medium, and growth was restored by adding catalase to the medium. B. boum and B. thermophilum grew well even under 20% O2 conditions without H2O2 accumulation, and growth was stimulated compared to anoxic growth. H2O-forming NADH oxidase activities were detected dominantly in cell extracts of B. boum and B. thermophilum under acidic reaction conditions (pH 5.0 to 6.0).

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research