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Pararhizobium mangrovi sp. nov., Isolated From Aegiceras corniculatum Stem.
- Source :
-
Current Microbiology . Jul2021, Vol. 78 Issue 7, p2828-2837. 10p. - Publication Year :
- 2021
-
Abstract
- A novel Gram-stain-negative, catalase- and oxidase-positive, motile, short rod-shaped bacterium designated BGMRC 6574T was isolated from stems of Aegiceras corniculatum collected from Hainan province, China. The strain grew at 25–37 °C (optimal at 28 °C), pH 5.0–10.0 (pH 7.0), and 3–8% (w/v) NaCl (3%). Based on the 16S rRNA phylogenetic analysis, the strain was closely related to Pararhizobium haloflavum MCCC 1K03228T (96.45% sequence similarity). The novel strain showed an average nucleotide identity value and a digital DNA–DNA hybridization of 72.62 and 27.1%, respectively, to P. haloflavum MCCC 1K03228T based on draft genome sequences. The G+C content of the genomic DNA was 64.7 mol%. The major respiratory quinone was Q-10. The strain possessed genes putatively encoding choline uptake and conversion to betaine gene clusters. The extract significantly delayed the lifespan of Caenorhabditis elegans compared to the control (P < 0.05). The major polar lipids were phosphatidylcholine, seven unidentified phospholipids, three unidentified ninhydrin-positive phospholipids, and two unidentified lipids. The major cellular fatty acid was C19:0 cyclo ω8c. The results of a polyphasic taxonomic study showed that strain BGMRC 6574T represents a new species of the genus Pararhizobium, and it was named Pararhizobium mangrovi sp. nov. The type strain is BGMRC 6574T (=KCTC 72636T = CGMCC 1.16783). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03438651
- Volume :
- 78
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- Current Microbiology
- Publication Type :
- Academic Journal
- Accession number :
- 150974682
- Full Text :
- https://doi.org/10.1007/s00284-021-02434-8