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Marinobacterium coralli sp. nov., isolated from mucus of coral (Mussismilia hispida)
Chimetto, L.; Cleenwerck, I.; Brocchi, M.; Willems, A.; De Vos, P.; Thompson, F. (2011). Marinobacterium coralli sp. nov., isolated from mucus of coral (Mussismilia hispida). Int. J. Syst. Evol. Microbiol. 61: 60-64. dx.doi.org/10.1099/ijs.0.021105-0
In: International Journal of Systematic and Evolutionary Microbiology. Society for General Microbiology: Reading. ISSN 1466-5026; e-ISSN 1466-5034, meer
Peer reviewed article  

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  • Chimetto, L., meer
  • Cleenwerck, I., meer
  • Brocchi, M.
  • Willems, A., meer
  • De Vos, P., meer
  • Thompson, F.

Abstract
    A Gram-negative, aerobic bacterium, designated R-40509T, was isolated from mucus of the reef builder coral (Mussismilia hispida) located in the São Sebastião Channel, São Paulo, Brazil. The strain was oxidase-positive and catalase-negative, and required Na+ for growth. Its phylogenetic position was in the genus Marinobacterium and the closest related species were Marinobacterium sediminicola, Marinobacterium maritimum and Marinobacterium stanieri; the isolate exhibited 16S rRNA gene sequence similarities of 97.5–98.0?% with the type strains of these species. 16S rRNA gene sequence similarities with other type strains of the genus Marinobacterium were below 96?%. DNA–DNA hybridizations between strain R-40509T and the type strains of the phylogenetically closest species of the genus Marinobacterium revealed less than 70?% DNA–DNA relatedness, supporting the novel species status of the strain. Phenotypic characterization revealed that the strain was able to grow at 15–42 °C and in medium containing up to 9?% NaCl. The isolate could be differentiated from phenotypically related species by several features, including its ability to utilize d-alanine, l-alanine, bromosuccinic acid, ß-hydroxybutyric acid and a-ketovaleric acid, but not acetate or l-arabinose. It produced acetoin (Voges–Proskauer), but did not have esterase lipase (C8) or catalase activities. It possessed C18?:?1?7c (35?%), summed feature 3 (iso-C15?:?0 2-OH and/or C16?:?1?7c; 25?%) and C16?:?0 (22?%) as major cellular fatty acids. The DNA G+C content was 58.5 mol%. The name Marinobacterium coralli sp. nov. is proposed to accommodate this novel isolate; the type strain is R-40509T (=LMG 25435T =CAIM 1449T).

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