Data/hora: 13/06/2024 06:41:14

Biblioteca(s): | Embrapa Soja.
Data corrente: | 16/12/2013
Data da última atualização: | 20/05/2014
Autoria: | DALL'AGNOL, R. F.; RIBEIRO, R. A.; ORMEÑO-ORRILLO, E.; ROGEL, M. A.; DELAMUTA, J. R. M.; MARTÍNEZ-ROMERO, E.; ANDRADE, D. S.; HUNGRIA, M.
Afiliação: | REBECA FUZINATTO DALL'AGNOL, UEL; RENAN AUGUSTO RIBEIRO, UEL; ERNESTO ORMEÑO-ORRILLO, Universidad Nacional Autónoma de México; MARCO ANTONIO ROGEL, Universidad Nacional Autónoma de México; JAKELINE RENATA MARÇON DELAMUTA, Universidad Nacional Autónoma de México; ESPERANZA MARTÍNEZ-ROMERO, UEL; DIVA SOUZA ANDRADE, IAPAR; MARIANGELA HUNGRIA DA CUNHA, CNPSO.
Título: | Rhizobium freirei sp. nov., a symbiont of Phaseolus vulgaris that is very effective at fixing nitrogen.
Ano de publicação: | 2013
Fonte/Imprenta: | International Journal of Systematic and Evolutionary Microbiology, v. 63, n.11, p. 4167-4173, 2013.
ISSN: | 1466-5026
DOI: | 10.1099/ijs.0.052928-0
Idioma: | Inglês
Conteúdo: | Common bean (Phaseolus vulgaris L.) can establish symbiotic associations with several Rhizobium species; however, the effectiveness of most strains at fixing nitrogen under field conditions is very low. PRF 81 T is a very effective strain, usually referred to as Rhizobium tropici and used successfully in thousands of doses of commercial inoculants for the common bean crop in Brazil; it has shown high rates of nitrogen fixation in all areas representative of the crop in the country. Here, we present results that indicate that PRF 81 T, although it belongs to the ?R. tropici group?, which includes 10 Rhizobium species, R. tropici, R. leucaenae, R. lusitanum, R. multihospitium, R. miluonense, R. hainanense, R. calliandrae, R. mayense, R. jaguaris and R. rhizogenes, represents a novel species. Several morpho-physiological traits differentiated PRF 81 T from related species. Differences were also confirmed in the analysis of rep-PCR (sharing less than 45 % similarity with the other species), MLSA with recA, atpD and rpoB genes, and DNA?DNA hybridization. The novel species, for which we propose the name Rhizobium freirei sp. nov., is able to establish effective root nodule symbioses with Phaseolus vulgaris, Leucaena leucocephala, Leucaena esculenta, Crotalaria juncea and Macroptilium atropurpureum. The type strain is PRF 81 T (5CNPSo 122 T 5SEMIA 4080 T 5IPR-Pv81 T 5WDCM 440 T).
Thesagro: | Fixação de Nitrogênio.
Categoria do assunto: | --
Registro original: | Embrapa Soja (CNPSO)
Exemplares: | CNPSO - (34938-1) - UPC - AP - DD -  -  -  - DIS