Presence of Ecophysiologically Diverse Populations within Cobetia marina Strains Isolated from Marine Invertebrate, Algae and the Environments

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概要

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• Over the last decade, taxonomic surveys have recovered sixteen strains of Halomonas-like marine heterotrophic bacteria from different ecological habitats. The sixteen strains were isolated from three N.W. Pacific Ocean habitats: seawater, the mussel Crenomytilus grayanus and the degraded thallus of brown alga Fucus evanescens. These strains were subjected to a taxonomic investigation of their phenotypic/physiological, genetic, and phylogenetic features. Analysis indicates these bacteria belong to Cobetia marina. The study found all strains tolerated CdCl2 concentrations up to 875 mM. Taxonomically, the sixteen strains belong to the same species, nevertheless, their physiological features revealed distinguishing characteristics. For instance, strain KMM 296, recovered from the mussel Crenomytilus grayanus, was distinct from other C. marina strains by its ability to produce highly active alkaline phosphatase. The majority of C. marina strains that were isolated from degraded alga thallus appeared to have a particular metabolic specialisation by utilizing a range of easily assimilable monosaccharides. Notably, despite a high level of genetic similarity (80% of DNA relatedness), the phenotypic features of the strains isolated from degraded alga thallus differed with the type strain C. marina LMG 2217T. These differences suggest an ecologically adapted population of C. marina at a subspecies level.

• 日本微生物生態学会の論文

著者

• Christen Richard

  Univ. De Nice Et Cnrs Umr 6543 Lab. De Biologie Virtuelle Cente De Biochimie Parc Valrose Fac. Des S

• SAWABE Tomoo

  Laboratory of Microbiology, Faculty of Fisheries, Hokkaido University

• MIKHAILOV VALERY

  Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch, Russian Academy of Sciences

• Ivanova Elena

  Swinburne Univ. Of Technol.

• Sawabe Tomoo

  Lab. Of Microbiology Fac. Of Fisheries Sciences Hokkaido Univ.

• Sawabe Tomoo

  Laboratory Of Microbiology Faculty Of Fisheries Hokkaido University

• CHRISTEN RICHARD

  UMR6543 CNRS-Universite de Nice Sophia Antipolis, Centre de Biochimie, Parc Valrose

• ALEXEEVA YULIA

  Swinburne University of Technology

• LYSENKO ANATOLY

  Institute of Microbiology of the Russian Academy of Sciences

• CHELOMIN VICTOR

  Pacific Oceanological Institute of the Far-Eastern Branch of the Russian Academy of Sciences

• Mikhailov Valery

  Pacific Inst. Of Bioorganic Chemistry Far-eastern Branch Russian Acad. Of Sciences

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