Journal
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
Volume 61, Issue -, Pages 574-579Publisher
MICROBIOLOGY SOC
DOI: 10.1099/ijs.0.022947-0
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Funding
- National Science Foundation of China [30970003, 30900215]
- National Basic Research Program of China [2010CB126502]
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Nine strains isolated from symbiotic root nodules on Alhagi sparsifolia were previously designated as representing genospecies I. Phylogenetic analyses indicated that genospecies I was related closely to Mesorhizobium alhagi (genospecies II), and clearly formed a new lineage within the genus Mesorhizobium. In this study, we differentiated genospecies I from recognized species of the genus Mesorhizobium based on phylogenetic analyses of additional core genes (recA, glnA), levels of DNA-DNA relatedness (<43.3%), fatty acid profile (58% C-18:1 omega 7c, 19% 11-methyl C-18:1 omega 7c), and biochemical and physiological characteristics. The nine strains are therefore considered to represent a novel species of the genus Mesorhizobium, for which the name Mesorhizobium camelthorni sp. nov. is proposed. The type strain is CCNWXJ 40-4(T) (=HAMBI 3020(T) =ACCC 14549(T)).
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