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Shewanella azerbaijanica sp. nov. a novel aquatic species with high bioremediation abilities

Lookup NU author(s): Dr Imen Nouioui, Emeritus Professor Hans-Peter Klenk

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Abstract

© 2022, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.A novel Gram-negative, facultative anaerobic, rod-shaped, and non-motile bacterium with bio-degradation potential of polycyclic aromatic hydrocarbons (PAHs) and uranium bio-reduction, designated as RCRI7T, was isolated from Qurugöl Lake water near Tabriz city. Strain RCRI7T can grow in the absence of NaCl and tolerates up to 3% NaCl (optimum, 0–0.5%), at the temperature range of 4–45 °C (optimum, 30 °C) and a pH range of 6–9 (optimum, pH 7 ± 0.5). Results of phylogenetic analysis based on 16S rRNA gene sequence indicated that strain RCRI7T is affiliated with the genus Shewanella, most closely related to Shewanella xiamenensis S4T (99.1%) and Shewanella putrefaciens JCM 20190T (98.9%). The genomic DNA G+C content of strain RCRI7T is 41 mol%. The major fatty acids are C16:1ω9c, C18:1ω9c and iso-C17:1ω5c. The OrthoANI and ANIb values between RCRI7T and Shewanella xiamenensis S4T were 87.4% and 87.7%, and between RCRI7T and Shewanella putrefaciens JCM 20190T were 79.5% and 79.7%, respectively. Strain RCRI7T displayed dDDH values of 30.2% and 39.8% to Shewanella xiamenensis S4T and Shewanella putrefaciens JCM 20190T, respectively. The major polar lipids include phosphatidylglycerol (PG) and phosphatidylethanolamine (PE). The respiratory quinone is Q8. Based on the polyphasic evidence presented in this paper, strain RCRI7T is considered to represent a novel species, with bioremediation potential, in the genus Shewanella, for which the name Shewanella azerbaijanica sp. nov. is proposed. The type strain is RCRI7T (= JCM 17276T) (= KCTC 62476T).

Publication metadata

Author(s): Nouioui I, Tarhriz V, Kim HM, Montazersaheb S, Hejazi MA, Jeon CO, Klenk H-P, Hejazi MS

Publication type: Article

Publication status: Published

Journal: Archives of Microbiology

Year: 2022

Volume: 204

Issue: 8

Online publication date: 18/07/2022

Acceptance date: 24/06/2022

ISSN (print): 0302-8933

ISSN (electronic): 1432-072X

Publisher: Springer Science and Business Media Deutschland GmbH

URL: https://doi.org/10.1007/s00203-022-03112-4

DOI: 10.1007/s00203-022-03112-4

PubMed id: 35849218

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