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Nitratireductor aestuarii sp nov., a marine alphaproteobacterium isolated from an estuary
Ou, Danyun1; Huang, Hao1; Bai, Renao1; Li, Qingge2; Wang, Yanan3; Yin, Yajie4
2017-06-01
摘要Two bacterial strains, 2-2-12-1(T) 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 degrees 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-19:0 cyclo omega 9c and C-18:1 omega 7c. 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 96.5% similarity, respectively) and Nitratireductor pacificus MCCC 1A01024(T) (96.2 and 96.3% similarity, respectively). The DNA G+C contents of the two strains were 56.7 mol%. DNA-DNA hybridization between strain 2-2-12-1(T) 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(T) 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 2-2-12-1(T) (=LMG 29090(T) = CGMCC 1.15320(T)).
关键词Nitratireductor aestuarii sp nov. estuary of Jiulong River surface water marine alphaproteobacterium
DOI10.1099/ijsem.0.001771
发表期刊INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
ISSN1466-5026
卷号67期号:6页码:1637-1642
通讯作者Huang, H (reprint author), State Ocean Adm, Inst Oceanog 3, Xiamen 361005, Peoples R China.
收录类别SCI
WOS记录号WOS:000405503800003
语种英语