Marinobacter algicola sp. nov., isolated from laboratory cultures of paralytic shellfish toxin-producing dinoflagellates

• DOI: 10.1099/ijs.0.63447-0
• Publication Date: 2006-03-02T20:23:34Z
• Authors: David H. Green; John P. Bowman; Elizabeth A. Smith; Tony Gutierrez; Christopher J. S....
• Keywords: Alexandrium tamarense; Marine bacteriophage

Phylogenetic and phenotypic analysis of cultivable marine bacteria isolated from laboratory cultures two paralytic shellfish toxin-producing dinoflagellates, Gymnodinium catenatum Alexandrium tamarense , showed the presence a novel group Gram-negative, aerobic, moderately halophilic hydrocarbon-degrading bacteria, related to genus Marinobacter . The strains, designated DG893 T DG1136 ATAM407-13, grew optimally in media with 3–6 % NaCl at 25–30 °C, all could utilize n-hexadecane n-tetradecane as sole carbon source. strains had 16S rRNA gene sequence similarity 94·2–94·3 hydrocarbonoclasticus ATCC 27132, 97·5–97·8 closest phylogenetically type strain, flavimaris DSM 16070 DNA–DNA hybridization levels M. other were ⩽42 %, while reassociation values among ATAM407-13 ⩾83 %. DNA G+C content was 54–55 mol% major isoprenoid quinone ubiquinone-9. On basis phenotypic, chemotaxonomic, phylogenetic analysis, it is proposed that these three represent species, algicola sp. nov. strain (=DSM 16394 =NCIMB 14009 ).