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Title 

Mucilaginibacter gossypii sp. nov. and Mucilaginibacter gossypiicola sp. nov., plant-growth-promoting bacteria isolated from cotton rhizosphere soils

Authors 

M MadhaiyanS PoonguzhaliJung-Sook LeeM SenthilkumarKeun Chul LeeS Sundaram

Publisher 

Society for General Microbiology

Issue Date 

2010

Citation 

International Journal of Systematic and Evolutionary Microbiology, vol. 60, no. 10, pp. 2451-2457

Abstract 

Two isolates from rhizosphere soil of cotton, designated Gh-67T and Gh-48T, which produced large amounts of extracellular polysaccharide and possessed plant-growth-promoting traits, were characterized phenotypically and genotypically. The strains were Gram-negative and cells were non-motile rods that grew optimally at 28 °C and grew between pH 4 and 7. 16S rRNA gene sequence analysis of strains Gh-67T and Gh-48 T placed them in the genus Mucilaginibacter, with pairwise sequence similarity between them and type strains from related genera ranging from 93.9 to 98.2 %. The major fatty acids were iso-C15 : 0, C16 : 0 and summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH). The strains contained MK-7 as the major isoprenoid quinone. The DNA G+C contents of strains Gh-67T and Gh-48T were 46.7 and 44.2 mol%, respectively. The low DNA-DNA hybridization value (18 %) and a number of phenotypic differences between strains Gh-48T and Gh-67T indicated that they represent two separate species. Results of phenotypic, phylogenetic and genotypic analysis revealed that the strains were separated from the species of Mucilaginibacter described to date. Therefore, strains Gh-67T and Gh-48T represent novel species of Mucilaginibacter, for which we propose the names Mucilaginibacter gossypii sp. nov. (type strain Gh-67T =NCIMB 14470T =KCTC 22380 T) and Mucilaginibacter gossypiicola sp. nov. (type strain Gh-48 T =NCIMB 14471T =KCTC 22379T).

ISSN 

1466-5026

Link 

http://dx.doi.org/10.1099/ijs.0.018713-0

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2017-04-19


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