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INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY logo

Volume 67, Issue 6

sp. nov., a marine alphaproteobacterium isolated from an estuary Free

Abstract

Two bacterial strains, 2-2-12-1 and 2-2-12-2, were isolated from the estuary of the Jiulong River, south-east China. Cells were Gram-stain-negative, non-motile, short rods without flagella. Growth occurred at 25–45 °C, at pH 5.0–9.0 and with 0.5–2 % (w/v) NaCl. The bacteria were unable to reduce nitrate. The predominant fatty acids were C cyclo ω9 and Cω7. Phylogenetic analysis based on 16S rRNA gene sequences showed that both strains belong to the genus , family , class . Their closest neighbours were ‘’ DSM 24322 (96.3 and 96.5 % similarity, respectively) and MCCC 1A01024 (96.2 and 96.3 % similarity, respectively). The DNA GC contents of the two strains were 56.7 mol%. DNA–DNA hybridization between strain 2-2-12-1 and the two most closely related type strains revealed 57.3 and 52.3 % relatedness, respectively. Evidence from genotypic, chemotaxonomic and phenotypic data indicated that strains 2-2-12-1 and 2-2-12-2 represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is 2-2-12-1 (=LMG 29090=CGMCC 1.15320).

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): estuary of Jiulong River , marine alphaproteobacterium , Nitratireductor aestuarii sp. nov. and surface water
© 2017 IUMS
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2017-06-01
2024-04-18
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Nitratireductor aestuarii sp. nov., a marine alphaproteobacterium isolated from an estuary
Int J Syst Evol Microbiol 67, 1637 (2017); https://doi.org/10.1099/ijsem.0.001771
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