1887

Abstract

A Gram-stain-negative, strictly aerobic, rod- or oval-shaped, motile, non-spore-forming bacterium, designated strain CC-AMHB-3, was isolated from coastal surface seawater off Hualien, Taiwan. The novel strain showed high pairwise 16S rRNA gene sequence similarities to NBRC 101030 (96.5 %), LMG 24367 (96.4 %), SSK6-1 (96.2 %), TF-218 (96.2 %), CZ-AM5 (96.1 %) and other species of the family (≤95.9 %). However, strain CC-AMHB-3 formed a distinct phyletic lineage associated with CZ-AM5 during phylogenetic analyses. The polar lipid profile of strain CC-AMHB-3 included major amounts of diphosphatidylglycerol, phosphatidylglycerol and phosphatidylcholine; moderate amounts of phosphatidylethanolamine, an unidentified aminolipid, an unidentified phospholipid and an unidentified lipid; and trace amounts of an unidentified lipid and an unidentified phospholipid, which was qualitatively almost in line with that of CZ-AM5 but remarkably distinct as compared with the type species of the genera ( JCM 21234) and ( JCM 21319). In line with the fatty acid profile of CZ-AM5, the major (>5 % of total) fatty acids of strain CC-AMHB-3 were Cω7 and/or Cω6 (summed feature 8), 11-methyl Cω7 and C. The DNA G+C content was 66.7 mol%. Ubiquinone-10 (Q-10) was the sole respiratory quinone. Thus, based on the results of the polyphasic study presented here, strain CC-AMHB-3 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed; the type strain is CC-AMHB-3 ( = JCM 19537 = BCRC 80695). In addition, an emended description of the genus is also proposed.

Funding
This study was supported by the:
  • Ministry of Education, Taiwan, ROC
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2014-11-01
2024-12-13
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