Niabella defluvii sp. nov., isolated from influent water of a wastewater treatment plant.
Int J Syst Evol Microbiol
; 74(6)2024 Jun.
Article
in En
| MEDLINE
| ID: mdl-38885037
ABSTRACT
Strain I65T (=KACC 22647T=JCM 35315T), a novel Gram-stain-negative, strictly aerobic, non-motile, non-spore-forming, rod-shaped, and orange-pigmented bacterium was isolated from influent water of a wastewater treatment system after treatment with several antibiotics, such as meropenem, gentamicin, and macrolide. The newly identified bacterial strain I65T exhibits significant multi-drug and heavy metal resistance characteristics. Strain I65T was grown in Reasoner's 2A medium [0â%-2â% (w/v) NaCl (optimum, 0â%), pH 5.0-10.0 (optimum, pH 7.0), and 20-45°C (optimum, 30â°C)]. Phylogenetic analysis based on 16S rRNA gene sequencing confirmed that strain I65T was closely related to Niabella yanshanensis CCBAU 05354T (99.56â% sequence similarity), Niabella hibiscisoli THG-DN5.5T (97.51â%), and Niabella ginsengisoli GR10-1T (97.09â%). Further analysis of the whole-genome sequence confirmed that the digital DNA-DNA hybridization, average nucleotide identity, and average amino acid identity values between strain I65T and N. yanshanensis CCBAU 05354T were 23.4, 80.7, and 85.0â%, respectively, suggesting that strain I65T is distinct from N. yanshanensis. The genome size of strain I65T was 6.1 Mbp, as assessed using the Oxford Nanopore platform, and its genomic DNA G+C content was 43.0âmol%. The major fatty acids of strain I65T were iso-C15ââ0 and iso-C15ââ1 G, and the major respiratory quinone was MK-7. Moreover, the major polar lipid of strain I65T was phosphatidylethanolamine. Based on genotypic, chemotaxonomic, and phenotype data, strain I65T represents a novel species belonging to the genus Niabella, for which the name Niabella defluvii sp. nov. is proposed. The type strain is I65T (=KACC 22647T=JCM 35315T).
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Phylogeny
/
Base Composition
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DNA, Bacterial
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RNA, Ribosomal, 16S
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Bacterial Typing Techniques
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Sequence Analysis, DNA
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Fatty Acids
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Wastewater
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Nucleic Acid Hybridization
Language:
En
Journal:
Int J Syst Evol Microbiol
Journal subject:
MICROBIOLOGIA
Year:
2024
Type:
Article