title: Bifid Shape Is Intrinsic toBifidobacterium adolescentis.
abstract: Although the genusBifidobacteriumwas originally named for its bifid morphology, not all bifidobacterial species have a similar structure, and very few of them adopt a bifid shape under stress conditions. The exposure of respective bifidobacterial species to various conditions, such as different pH, temperatures, medium components,in vivogrowth inCaenorhabditis elegans, and subculture, did not affect their diverse morphologies. Extensive scanning electron microscopy studies suggested that the bifid shape ofB. adolescentisare maintained irrespective of the conditions. Hence, we conclude that the bifid morphology is intrinsic toB. adolescentis. Most bifidobacterial species are anaerobic and rod-shaped, whereas, after the first generation, they become microaerophilic or aerophilic. CaCl2(treatment ofB. animalis) signaling triggered a change from the rod shape to the bifid shape and vice versa inB. adolescentis.
authors.affiliation: Department of Protein Chemistry and Technology, Council of Scientific and Industrial Research - Central Food Technological Research Institute, Mysore India.
authors.lastname: Dhanashree
authors.affiliation: Department of Biotechnology, Alagappa Univeristy, Karaikudi India.
authors.forename: Sharika
authors.initials: S
authors.lastname: Rajashekharan
authors.affiliation: Department of Biotechnology, Alagappa Univeristy, Karaikudi India.
authors.forename: Balamurugan
authors.initials: B
authors.lastname: Krishnaswamy
authors.affiliation: Department of Protein Chemistry and Technology, Council of Scientific and Industrial Research - Central Food Technological Research Institute, Mysore India.
authors.forename: Rajagopal
authors.initials: R
authors.lastname: Kammara
keywords: Bifidobacterium; aerophilic; bifid; intrinsic; microaerophilic; polymorphic