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Publication Type J
Authors Soto-Ramirez, N., C. Sanchez-Porro, S. Rosas, W. Gonzalez, M. Quinones, A. Ventosa and R. Montalvo-Rodriguez
Title Halomonas avicenniae sp nov., isolated from the salty leaves of the black mangrove Avicennia germinans in Puerto Rico
Source International Journal of Systematic and Evolutionary Microbiology
Abstract A Gram-negative, short rod to oval-shaped bacterium (strain MW2a(T)) was isolated from the surface of leaves of the black mangrove Avicennia germinans and subjected to a polyphasic taxonomic study. Strain MW2a(T) was moderately halophilic, growing at NaCl concentrations in the range 0-25% (w/v) with optimum growth at 5% (w/v) NaCl. Growth occurred at 12-40 degrees C (optimum, 30-35 degrees C) and at pH 5.0-9.0 (optimum, pH 7.0-8.0). Strain MW2a(T) was strictly aerobic. Phylogenetic analysis based on the 16S rRNA gene showed that the strain belongs to the genus Halomonas. The closest relative was Halomonas marisflavi, with 98.6 % 16S rRNA gene sequence similarity. The DNA G + C content of strain MW2a(T) was 61.5 mol%, which is in the range of values for Halomonas species. DNA-DNA hybridization with H. marisflavi showed a related ness of 42 % and lower values were obtained with respect to other related Halomonas species. The major fatty acids were C-16:0, C-19:0 cyclo omega 8c, C(18:1 omega)7c and C-12:0 3-OH. Overall, the phenotypic, genotypic and phylogenetic results presented in this study demonstrate that strain MW2a(T) represents a novel species within the genus Halomonas. The name Halomonas avicenniae sp. nov. is proposed, with strain MW2a(T) (=CECT 7193(T) =CCM 7396(T)) as the type strain.
ISSN 1466-5026
ISBN 1466-5026
Publication Date May
Year Published 2007
Volume 57
Beginning Page 900-905
Digital Object Identifier (DOI) 10.1099/ijs.0.64818-0
Unique Article Identifier WOS:000246824800001
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