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Abstract

A novel, yellow-pigmented bacterium, designated strain MO64, was isolated from the rhizoplane of field-grown soybean, collected from an experimental plot at Coimbatore, India. Cells were Gram-reaction-negative, motile, non-spore-forming rods that produced yellow-pigmented colonies on R2A agar. Phylogenetic analysis, based on 16S rRNA gene sequences, showed that strain MO64 belonged to the genus . Strain MO64 was related most closely to GR17-7 (98.0 % 16S rRNA gene sequence similarity), B39 (97.9 %), LnR5-47 (97.7 %), GP18-1 (97.6 %), DCY45 (97.3 %) and MJ01 (97.2 %); levels of similarity to the type strains of all other recognized species of the genus were less than 97.0 %. Chemotaxonomic data (Q-8 as the predominant ubiquinone, and iso-C, iso-C, C cyclo, iso-Cω9, iso-C and iso-C as the major fatty acids) also supported the affiliation of strain MO64 with the genus . The GC content of the genomic DNA was 64 mol%. The results of DNA–DNA hybridization and phenotypic analysis showed that strain MO64 can be distinguished from all known species of the genus and therefore represents a novel species of the genus, for which the name sp. nov. is proposed. The type strain is MO64 ( = ICMP 17626 = NBRC 105007).

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2014-06-01
2024-12-06
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