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Flores-Felix J.D.,University of Salamanca | Mulas R.,University of León | Ramirez-Bahena M.-H.,Institute Of Recurs National Y Agrobiologia Of Salamanca | Ramirez-Bahena M.-H.,University of Salamanca | And 10 more authors.
Antonie van Leeuwenhoek, International Journal of General and Molecular Microbiology | Year: 2014

A bacterial strain, designated BAPVE7BT, was isolated from root nodules of Phaseolus vulgaris in Spain. Phylogenetic analysis based on its 16S rRNA gene sequence placed the isolate into the genus Fontibacillus with Fontibacillus panacisegetis KCTC 13564T its closest relative with 97.1 % identity. The isolate was observed to be a Gram-positive, motile and sporulating rod. The catalase test was negative and oxidase was weak. The strain was found to reduce nitrate to nitrite and to produce β-galactosidase but the production of gelatinase, caseinase, urease, arginine dehydrolase, ornithine or lysine decarboxylase was negative. Acetoin production and aesculin hydrolysis were found to be positive. Growth was observed to be supported by many carbohydrates and organic acids as carbon source. MK-7 was identified as the predominant menaquinone and the major fatty acid (43.7 %) as anteiso-C 15:0, as occurs in the other species of the genus Fontibacillus. Strain BAPVE7BT displayed a complex lipid profile consisting of diphosphatidylglycerol, phosphatidylglycerol, four glycolipids, four phospholipids, two lipids, two aminolipids and an aminophospholipid. Mesodiaminopimelic acid was detected in the peptidoglycan. The G+C content was determined to be 45.6 mol% (Tm). Phylogenetic, chemotaxonomic and phenotypic analyses showed that strain BAPVE7BT should be considered a new species of genus Fontibacillus, for which the name Fontibacillus phaseoli sp. Nov. is proposed (type strain, LMG 27589T, CECT 8333T). © 2013 Springer Science+Business Media Dordrecht.

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