Nitratireductor aestuarii sp. nov., a marine alphaproteobacterium isolated from an estuary.
Int J Syst Evol Microbiol
; 67(6): 1637-1642, 2017 Jun.
Article
em En
| MEDLINE
| ID: mdl-28056221
ABSTRACT
Two bacterial strains, 2-2-12-1T 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 0.5-2â% (w/v) NaCl. The bacteria were unable to reduce nitrate. The predominant fatty acids were C19ââ0 cyclo ω9c and C18ââ1ω7c. Phylogenetic analysis based on 16S rRNA gene sequences showed that both strains belong to the genus Nitratireductor, family Phyllobacteriaceae, class Alphaproteobacteria. Their closest neighbours were 'Nitratireductor lucknowense' DSM 24322 (96.3 and 96.5â% similarity, respectively) and Nitratireductor pacificus MCCC 1A01024T (96.2 and 96.3â% similarity, respectively). The DNA G+C contents of the two strains were 56.7 mol%. DNA-DNA hybridization between strain 2-2-12-1T and the two most closely related type strains revealed 57.3 and 52.3â% relatedness, respectively. Evidence from genotypic, chemotaxonomic and phenotypic data indicated that strains 2-2-12-1T and 2-2-12-2 represent a novel species of the genus Nitratireductor, for which the name Nitratireductor aestuarii sp. nov. is proposed. The type strain is 2-2-12-1T (=LMG 29090T=CGMCC 1.15320T).
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Filogenia
/
Estuários
/
Phyllobacteriaceae
País/Região como assunto:
Asia
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article