Data/hora: 03/06/2024 00:22:51

Biblioteca(s): 	Embrapa Soja.	
Data corrente: 	27/04/1993	
Data da última atualização: 	09/02/2012	
Autoria: 	DEVINE, T. E.	
Afiliação: 	Plant Molecular Biology Laboratory, ARS-USDA, Beltsville, MD., 20705, USA.	
Título: 	The role of co-evolution in the soybean/microsymbiont interaction.	
Ano de publicação: 	1989	
Fonte/Imprenta: 	In: CONFERENCIA MUNDIAL DE INVESTIGACION EN SOJA, 4., 1989, Buenos Aires. Actas... Buenos Aires: AASOJA, 1989.	
Volume: 	t.3	
Páginas: 	p.1119-1124.	
Idioma: 	Inglês	
Conteúdo: 	The nitrogen fixing symbiosis of legumes with rhizobial bacteria is the product of 200 million years of evolution. Different adaptative solutions evolved in response to the challenge of survival in differnt taxonomic complexes of symbionts. Some bradyrhizobial strains that nodulate soybean also producerhizobitoxine in symbiosis are found in a distinct group characterized by (l) the ability to nodulance the rj genotype, (2) stimulation of nodule-like structure on penaut, (3) a relatively high degree of ex planta nitrogenase activity, (4) similar extracellular polysaccharide composition, (5) similar fatty acid composition, (6) similar antibiotic resistance profiles, and (7) a high degree of DNA homology. Seventy-eight percent of the strains interdicted from nodulation by the Rj allele are chlorosis inducing strains. This suggests that the Rj. allele, the most common allelic form in the wild; species, has a positive value for the host plants in protecting them from nodulation by rhizobia poorly adapted for symbiosis with these hosts.	
Palavras-Chave: 	EUA; Fixacao; Fixation; Rhizobial bacteria; Soybean; USA.	
Thesagro: 	Nitrogênio; Rhizobium; Soja.	
Thesaurus Nal: 	nitrogen.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Soja (CNPSO)