Bizionia argentinensis sp. nov., isolated from surface marine waters, Antarctica

BERCOVICH A; VAZQUEZ SC; YANKILEVICH P; CORIA SH; FOTI M; HERNÁNDEZ E; VIDAL A; RUBERTO L; MELO C; CRISCUOLO M; MARENSSI S; MEMOLI M; ARGUELLES M,; MAC CORMACK WP

INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY.

Society for General Microbiology

Año: 2008 p. 2363 - 2367

1466-5026

One marine bacterial strain (JUB59T) isolated from surface sea water in Antarctica, was characterized. Cells were Gram-negative non-motile rods forming butyrous, shiny, yellowish-orange colonies on marine agar. Growth occurred at 2-28 ¨¬C but not at 30¨¬C (optimum 22-25 ¨¬C) and required Na+ ions, but 9% NaCl was not tolerated. According to the phylogenetic analysis based on the comparison of the complete 16S rRNA gene sequence with sequences from closely related strains, strain JUB59T belonged to the family Flavobacteriaceae and represented a novel species of the genus Bizionia. It shared higher level of sequence similarity with Bizionia myxarmorum ADA-4T (97.4 %) and Bizionia algoritergicola APA-1T (97.1 %). However, the DNA-DNA relatedness of JUB59T with these two strains was low (15¡¤9-17¡¤3 % and 19¡¤3-22¡¤1 %, respectively). The dominant fatty acids of strain JUB59T were iso-15:1 ¥ø10c (18¡¤1%), iso-15:0 (17¡¤3%), anteiso-15:0 (13¡¤9%), iso-17:0 3-OH (9¡¤2%), 15:0 (6¡¤0%) and iso-16:0 3-OH (5¡¤3%). The main polar lipids were phosphatidylethanolamine, one amino lipid, one amino positive phospholipid and two unidentified lipids. MK-6 was the major respiratory quinone (>90%) and the DNA G+C content was 34 mol%. On the basis of our data, strain JUB59T (=DSMZ 19628 = CCM-A-29 1259) should be classified as the type strain of a novel species in the genus Bizionia, for which the name Bizionia argentinensis sp. nov. is propos