1887

Abstract

A Gram-negative, heterotrophic, marine bacterium, designated strain SW-11, was isolated from the reef-building coral in Kenting, Taiwan. Cells were rods and were motile by a single polar flagellum. The strain grew at 10–45 °C (optimum, 30–35 °C), at pH 7.0–8.0 (optimum, pH 7.5) and with 2.0–4.0 % NaCl (optimum, 2.5–3.0 %). The polar lipids comprised phosphatidylethanolamine, phosphatidylglycerol, phosphatidylserine, diphosphatidylglycerol and four unknown phospholipids. Isoprenoid quinones consisted of ubiquinone 9 (78.8 %) and ubiquinone 8 (21.1 %). Major cellular fatty acids were summed feature 3 (Cω7 and/or Cω6; 22.3 %), Cω8 (13.4 %), summed feature 8 (Cω6 and/or Cω7; 13.1 %), C (10.3 %) and anteiso-Cω9 (10.0 %). The DNA GC content was 51.6 mol%. 16S rRNA gene sequence analysis indicated that strain SW-11 belongs to the class and is a member of the order . Strain SW-11 shared 93.2 % 16S rRNA gene sequence similarity with T7902 and 92.1 % with 2-40, and can be further distinguished from these two related strains by distinct patterns of fatty acid content and differences in the polar lipid profile, the ability to utilize different compounds as carbon sources, the ability to degrade various compounds and differences in enzyme activities. The phylogenetic data and those from physiological, morphological and chemotaxonomic characterizations indicate that strain SW-11 represents a novel species and genus, for which the name gen. nov., sp. nov. is proposed. The type strain of is SW-11 ( = BCRC 17935  = LMG 25246).

Funding
This study was supported by the:
  • Academia Sinica (Award Thematic Grant 20082010)
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2011-08-01
2024-03-29
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