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

journal contribution
posted on 2023-05-16, 17:56 authored by Green, DH, John BowmanJohn Bowman, Smith, EA, Gutierrez, T, Christopher BolchChristopher Bolch
Phylogenetic and phenotypic analysis of cultivable marine bacteria isolated from laboratory cultures of two paralytic shellfish toxin-producing dinoflagellates, Gymnodinium catenatum and Alexandrium tamarense, showed the presence of a novel group of Gram-negative, aerobic, moderately halophilic and hydrocarbon-degrading bacteria, related to the genus Marinobacter. The strains, designated DG893 T, DG1136 and ATAM407-13, grew optimally in media with 3-6 % NaCl and at 25-30 °C, and all could utilize n-hexadecane and n-tetradecane as the sole carbon source. The strains had a 16S RNA gene sequence similarity of 94.2-94.3% to Marinobacter hydrocarbonoclasticus ATCC 27132, and a similarity of 97.5-97.8% to the closest phylogenetically related type strain, Marinobacter flavimaris DSM 16070 T. DNA-DNA hybridization levels to M. flavimaris and other Marinobacter type strains were ≤42 %, while DNA-DNA reassociation values among DG893 T, DG1136 and ATAM407-13 were ≥83%. The DNA G+C content was 54-55 mol% and the major isoprenoid quinone was ubiquinone-9. On the basis of phenotypic, chemotaxonomic, DNA-DNA hybridization and phylogenetic analysis, it is proposed that these three strains represent a novel species, Marinobacter algicola sp. nov. The type strain is DG893 T (=DSM 16394 T=NCIMB 14009 T). © 2006 IUMS.


Publication title

International Journal of Systematic and Evolutionary Microbiology








Tasmanian Institute of Agriculture (TIA)


Society for General Microbiology

Place of publication

United Kingdom

Repository Status

  • Restricted

Socio-economic Objectives

Fisheries - aquaculture not elsewhere classified

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