title: Mesorhizobium olivaresii sp. nov. isolated from Lotus corniculatus nodules.
abstract: In this study four Mesorhizobium strains isolated from Lotus corniculatus nodules in Granada (Spain) were characterized. Their 16S rRNA gene sequences were closely related to those of M. albiziae LMG 23507Tand M. chacoense Pr5Tshowing 99.4 and 99.2% similarity values, respectively. The analysis of concatenated rpoB, recA, atpD and glnII genes showed they formed a cluster with internal similarities higher than 97%. The closest species also were M. albiziae LMG 23507Tand M. chacoense Pr5Tshowing similarity values lower than 92% in rpoB, recA and glnII genes and lower than 96.5% in the atpD gene. These results indicated that the L. corniculatus strains belong to a new species of genus Mesorhizobium which was confirmed by DNA-DNA hybridization and phenotypic characterization. Therefore a new species with the name Mesorhizobium olivaresii sp. nov. is proposed, and the type strain is CPS13T(LMG 29295T=CECT 9099T).
authors.affiliation: Departamento de Microbiología del Suelo y Sistemas Simbióticos, Estación Experimental del Zaidin, CSIC, Granada, Spain.
authors.forename: María J
authors.initials: MJ
authors.lastname: Lorite
authors.affiliation: Departamento de Microbiología y Genética, Universidad de Salamanca, Salamanca, Spain.
authors.forename: José David
authors.initials: JD
authors.lastname: Flores-Félix
authors.affiliation: Unidad Asociada Universidad de Salamanca-CSIC "Interacciones Planta-Microorganismo", Spain; IRNASA-CSIC, Salamanca,Spain.
authors.forename: Álvaro
authors.initials: Á
authors.lastname: Peix
authors.affiliation: Departamento de Microbiología del Suelo y Sistemas Simbióticos, Estación Experimental del Zaidin, CSIC, Granada, Spain.
authors.forename: Juan
authors.initials: J
authors.lastname: Sanjuán
authors.affiliation: Departamento de Microbiología y Genética, Universidad de Salamanca, Salamanca, Spain; Unidad Asociada Universidad de Salamanca-CSIC "Interacciones Planta-Microorganismo", Spain. Electronic address: evp@usal.es.
authors.forename: Encarna
authors.initials: E
authors.lastname: Velázquez
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology; D015373:Bacterial Typing Techniques; D050260:Carbohydrate Metabolism / Q000502:physiology; D004269:DNA, Bacterial / Q000235:genetics*; D012321:DNA-Directed RNA Polymerases / Q000235:genetics; D020043:Genes, Essential / Q000235:genetics*; D000070116:Lotus / Q000382:microbiology*; D059128:Mesorhizobium / Q000145:classification* / Q000187:drug effects / Q000235:genetics* / Q000302:isolation & purification; D008826:Microbial Sensitivity Tests; D009693:Nucleic Acid Hybridization; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D011938:Rec A Recombinases / Q000235:genetics; D053204:Root Nodules, Plant / Q000382:microbiology*; D017422:Sequence Analysis, DNA; D013030:Spain; D014157:Transcription Factors / Q000235:genetics
chemical_list: D000900:Anti-Bacterial Agents; D004269:DNA, Bacterial; D012336:RNA, Ribosomal, 16S; D014157:Transcription Factors; D011938:Rec A Recombinases; D012321:DNA-Directed RNA Polymerases
keywords: Lotus corniculatus; Mesorhizobium; Spain