Rahi , P. and Khairnar, M. and Hagir, A. and Narayan, A. and Jain , KR. and Madamwar , D. and Pansare, A. and Shouche, Y. (2021) Peteryoungia gen. nov. with four new species combinations and description of Peteryoungia desertarenae sp. nov., and taxonomic revision of the genus Ciceribacter based on phylogenomics of Rhizobiaceae. Archives of Microbiology., 203. 3591-3604 .

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Abstract

A novel bacterial strain designated as ADMK78T was isolated from the saline desert soil. The cells were rod-shaped, Gram-stain-negative, and non-motile. The strain ADMK78T grows best at 28 °C. Phylogeny of 16S rRNA gene placed the strain ADMK78T with the members of genera Ciceribacter and Rhizobium, while the highest sequence similarity was with Rhizobium wuzhouense W44T (98.7%) and Rhizobium ipomoeae shin9-1 T (97.9%). Phylogenetic analysis based on 92 core-genes extracted from the genome sequences and average amino acid identity (AAI) revealed that the strain ADMK78T forms a distinct cluster including five species of Rhizobium, which is separate from the cluster of the genera Rhizobium and Ciceribacter. We propose re-classification of Rhizobium ipomoeae, R. wuzhouense, R. rosettiformans and R. rhizophilum into the novel genus Peteryoungia. The average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values of ADMK78T were less than 82 and 81%, respectively, among all type strains included in the genus Peteryoungia. The strain ADMK78T showed differences in physiological, phenotypic, and protein profiles estimated by MALDI-TOF MS to its closest relatives. Based on the phenotypic, chemotaxonomic properties, and phylogenetic analyses, the strain ADMK78T represents a novel species, Peteryoungia desertarenae sp. nov. The type strain is ADMK78T (= MCC 3400T; KACC 21383T; JCM 33657T). We also proposed the reclassification of Rhizobium daejeonense, R. naphthalenivorans and R. selenitireducens, into the genus Ciceribacter, based on core gene phylogeny and AAI values.

Item Type:	Article
Subjects:	Insect Molecular Biology
Depositing User:	Mr. Rameshwar Nema
Date Deposited:	20 Nov 2021 14:13
Last Modified:	20 Nov 2021 14:13
URI:	http://nccs.sciencecentral.in/id/eprint/1032

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