Fictibacillus aquaticus sp. nov., isolated from downstream river water

Pal, Deepika and Bhardwaj, Ayanka and Kaur, Navjot and Sudan, Sarabjeet Kour and Bisht, Bhawana and Kumari, Munesh and Vyas, Bhawna and Krishnamurthi, Srinivasan and Mayilraj, Shanmugam (2018) Fictibacillus aquaticus sp. nov., isolated from downstream river water. International Journal of Systematic and Evolutionary Microbiology, 68 (1). pp. 160-164. ISSN 1466-5026

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A Gram-stain-positive, facultatively anaerobic bacterial strain, GDSW-R2A3T, was isolated from a downstream water sample collected from the river Ganges, India. Analysis of the 16S rRNA gene sequence of strain GDSW-R2A3T revealed its affiliation to the family Bacillaceae. Further analysis using a polyphasic approach revealed that strain GDSW-R2A3T was most closely related to the genus Fictibacillus. Analysis of the almost-complete (1488 bp) 16S rRNA gene sequence of strain GDSW-R2A3T revealed the highest level of sequence similarity with Fictibacillus phosphorivorans CCM 8426T (98.3 %) and Fictibacillus nanhaiensis KCTC 13712T (98.3 %) followed by Fictibacillus barbaricus DSM 14730T (98.0 %). The digital DNA-DNA hybridization and average nucleotide identity (ANI) values between strain GDSW-R2A3T and the most closely related taxon, F. phosphorivorans CCM 8426T, were 20.3 and 78.2 %, respectively. The DNA G+C content of the strain was 44.2 mol%. The cell-wall amino acid was meso-diaminopimelic acid. Polar lipids present were phosphatidylglycerol, phosphatidylethanolamine, diphosphatidylglycerol, three aminophospholipids, two phospholipids and one unidentified lipid; the major menaquinone was MK-7; iso-C14 : 0, iso-C15 : 0 and anteiso-C15 : 0 were the major fatty acids. On the basis of the phenotypic, chemotaxonomic and phylogenetic data, it can be concluded that strain GDSW-R2A3T represents a novel species of the genus Fictibacillus, for which the name Fictibacillus aquaticus sp. nov. is proposed. The type strain is GDSW-R2A3T (=VTCC-B-910015T=CCM 8782T).

Item Type: Article
Additional Information: Copyright of this article belongs to Society for General Microbiology.
Uncontrolled Keywords: 16S rRNA gene; Fictibacillus; dDDH; fatty acid methyl esters
Subjects: Q Science > QR Microbiology
Depositing User: Dr. K.P.S.Sengar
Date Deposited: 28 Mar 2018 04:46
Last Modified: 20 Mar 2019 14:46

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