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Mesorhizobium acaciae sp. nov., isolated from root nodules of Acacia melanoxylon R. Br.
Zhu, Ya Jie; Lu, Jun Kun; Chen, Ying Long; Wang, Sheng Kun; Sui, Xin Hua; Kang, Li Hua.
Afiliación
  • Zhu YJ; Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, PR China.
  • Lu JK; Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, PR China.
  • Chen YL; Institute of Soil and Water Conservation, Chinese Academy of Sciences, and Northwest A&F University, Yangling 712100, PR China.
  • Wang SK; School of Earth and Environment, and UWA Institute of Agriculture, The University of Western Australia, Perth, WA 6009, Australia.
  • Sui XH; Research Institute of Tropical Forestry, Chinese Academy of Forestry, Guangzhou 510520, PR China.
  • Kang LH; State Key Laboratory for Agro-Biotechnology, College of Biological Sciences, China Agricultural University, Beijing, 100193, PR China.
Int J Syst Evol Microbiol ; 65(10): 3558-3563, 2015 Oct.
Article en En | MEDLINE | ID: mdl-26296667
Three novel strains, RITF741T, RITF1220 and RITF909, isolated from root nodules of Acacia melanoxylon in Guangdong Province of China, have been previously identified as members of the genus Mesorhizobium, displaying the same 16S rRNA gene RFLP pattern. Phylogenetic analysis of 16S rRNA gene sequences indicated that the three strains belong to the genus Mesorhizobium and had highest similarity (100.0 %) to Mesorhizobium plurifarium LMG 11892T. Phylogenetic analyses of housekeeping genes recA, atpD and glnII revealed that these strains represented a distinct evolutionary lineage within the genus Mesorhizobium. Strain RITF741T showed >73 % DNA­DNA relatedness with strains RITF1220 and RITF909, but < 60 % DNA­DNA relatedness with the closest type strains of recognized species of the genus Mesorhizobium. They differed from each other and from their closest phylogenetic neighbours by presence/absence of several fatty acids, or by large differences in the relative amounts of particular fatty acids. While showing distinctive features, they were generally able to utilize a wide range of substrates as sole carbon sources based on API 50CH and API 20NE tests. The three strains were able to form nodules with the original host Acacia melanoxylon and other woody legumes such as Acacia aneura, Albizia falcataria and Leucaena leucocephala. In conclusion, these strains represent a novel species belonging to the genus Mesorhizobium based on the data obtained in the present and previous studies, for which the name Mesorhizobium acaciae sp. nov. is proposed. The type strain is RITF741T ( = CCBAU 101090T = JCM 30534T), the DNA G+C content of which is 64.1 mol% (T m).
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Filogenia / Acacia / Nódulos de las Raíces de las Plantas / Mesorhizobium País/Región como asunto: Asia Idioma: En Revista: Int J Syst Evol Microbiol Asunto de la revista: MICROBIOLOGIA Año: 2015 Tipo del documento: Article Pais de publicación: Reino Unido
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Filogenia / Acacia / Nódulos de las Raíces de las Plantas / Mesorhizobium País/Región como asunto: Asia Idioma: En Revista: Int J Syst Evol Microbiol Asunto de la revista: MICROBIOLOGIA Año: 2015 Tipo del documento: Article Pais de publicación: Reino Unido