Psychromonas profunda sp. nov., a psychropiezophilic bacterium from deep Atlantic sediments
Ying Xu1, Yuichi Nogi2, Chiaki Kato2
1J. M. Wiame Research Institute for Microbiology, Free University of Brussels (VUB), and Flanders Inter-University Institute for Biotechnology, 1 ave E. Gryson, B-1070 Brussels, Belgium.
Abstract:
A psychropiezophilic bacterium, strain 2825T (=LMG 21260T =JCM 11437T), isolated from deep Atlantic sediments at a depth of 2770 m and a temperature of 2 degrees C, was found by polyphasic analysis to represent a novel species of the genus Psychromonas, Psychromonas profunda sp. nov. It is a strict psychrophile and a moderate piezophile, whose degree of piezophily is increased markedly when the temperature is raised to 10 degrees C. The piezophily of P. profunda is intermediate between that of the type species, Psychromonas antarctica, which is not piezophilic, and that of Psychromonas kaikoae, which is an obligate piezophile.
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