Abstract:
:Strain WY-1T, a Gram-stain-negative, non-spore-forming, rod-shaped, non-motile bacterium, was isolated from the sewage treatment packing of a coking chemical plant. Strain WY-1T grew over a temperature range of 15-45 °C (optimum, 30-37 °C), a pH range of 5.5-11.0 (optimum, pH 6.5-7.0) and an NaCl concentration range of 0-3 % (w/v; optimum, 0 %). 16S rRNA gene sequence analysis showed that strain WY-1T was closely related to Parapedobacter indicus RK1T with the highest sequence similarity of 96.0 %. The predominant cellular fatty acids of the novel strain were iso-C15 : 0, summed feature 3(C16 : 1ω6c and/or C16 : 1ω7c), iso-C17 : 0 3-OH, iso-C17 : 1ω9c, iso-C15 : 0 3-OH and C16 : 0. The respiratory quinone of the cells was menaquinone 7 (MK-7). The main polar lipid was phosphatidylethanolamine, an unidentified phospholipid, two unidentified aminolipids and two unknown lipids. The G+C content of the DNA was 47.1 mol%. Chemotaxonomic characteristics and phylogenetic analyses revealed that strain WY-1T belonged to the genus Parapedobacter. Strain WY-1T showed a range of phenotypic characteristics that differentiated it from species of the genus Parapedobacter with validly published names, including its assimilation from carbon sources, enzyme activities and having a wider pH range for growth. Based on these results, it is concluded that strain WY-1T represents a novel species of the genus Parapedobacter, for which the name Parapedobacter defluvii sp. nov. is proposed. The type strain is WY-1T (=NBRC 112611T=CGMCC 1.15342T).
journal_name
Int J Syst Evol Microbiolauthors
Yang L,Wang YH,Zhu HZ,Muhadesi JB,Wang BJ,Liu SJ,Jiang CYdoi
10.1099/ijsem.0.002360subject
Has Abstractpub_date
2017-11-01 00:00:00pages
4698-4703issue
11eissn
1466-5026issn
1466-5034journal_volume
67pub_type
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