Polymorphobacter multimanifer gen. nov., sp. nov., a polymorphic bacterium isolated from antarctic white rock
Strain (injury)
DOI:
10.1099/ijs.0.050005-0
Publication Date:
2014-03-21T03:12:38Z
AUTHORS (8)
ABSTRACT
A Gram-stain-negative, non-spore-forming, aerobic, oligotrophic bacterium (strain 262-7 T ) was isolated from a crack of white rock collected in the Skallen region Antarctica. Strain grew at temperatures between −4 and 30 °C, with optimal growth 25 °C. The pH range for 6.0 9.0, approximately 7.0. NaCl concentration allowing 0.0 1.0 %, an optimum 0.5 %. showed unprecedented morphological diversity response to conditions. Cells grown liquid medium were circular or ovoid smooth surfaces lag phase. In exponential phase, cells short projections observed. stationary phase possessed long tentacle-like intertwined intricately. By contrast, on agar plate media containing organic compounds low exhibited short- long-rod-shaped morphology. These variations clearly differ those previously described bacteria. Ubiquinone 10 major respiratory quinone. fatty acids C 17 : 1 ω6 c (28.2 %), 16 ω7 (22.6 18 (12.9 %) 15 0 2-OH (12.3 %). G+C content genomic DNA 68.0 mol%. Carotenoids detected cells. Comparative analyses 16S rRNA gene sequences indicated that strain belongs family Sphingomonadaceae , should be distinguished known genera . According phylogenetic position, physiological characteristics unique morphology variations, classified as representative novel genus Here, species name Polymorphobacter multimanifer gen. nov., sp. nov. is proposed (type = JCM 18140 ATCC BAA-2413 ). named after its formation projections.
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