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Structure and Arrangement of Flagella in Species of the Genus Beneckea and Photobacterium fischeri

By Richard D. Allen and Paul Baumann


Species of marine bacteria belonging to the genus Beneckea and strains of Photobacterium fischeri were negatively stained and examined by means of the electron microscope to determine the structure and arrangement of their flagella. All of the species of the genus Beneckea had single, polar, sheathed flagella when grown in liquid medium. When grown on solid medium, most strains of B. campbellii and B. neptuna and all strains of B. alginolytica and B. parahaemolytica had unsheathed, peritrichous flagella in addition to the single, sheathed, polar flagellum. The remaining species, B. nereida, B. pelagia, and B. natriegens, had a single, polar, sheathed flagellum when grown on solid medium. Strains of P. fischeri had sheathed flagella arranged in polar tufts. Only one group (B-2) of marine bacteria included in this study was found to have polar, unsheathed flagella

Topics: Taxonomy and Ecology
Year: 1971
OAI identifier: oai:pubmedcentral.nih.gov:246915
Provided by: PubMed Central
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