The genomes of three Bradyrhizobium sp. isolated from root nodules of Lupinus albescens grown in extremely poor soils display important genes for resistance to environmental stress



Document title: The genomes of three Bradyrhizobium sp. isolated from root nodules of Lupinus albescens grown in extremely poor soils display important genes for resistance to environmental stress
Journal: Genetics and molecular biology
Database: PERIÓDICA
System number: 000418600
ISSN: 1415-4757
Authors: 1
2
3
4
4
4
4
5
3
Institutions: 1Universidade do Vale do Taquari, Lajeado, Rio Grande do Sul. Brasil
2Fundacao Estadual de Pesquisa Agropecuaria, Porto Alegre, Rio Grande do Sul. Brasil
3Universidade Federal do Rio Grande do Sul, Instituto de Biociencias, Porto Alegre, Rio Grande do Sul. Brasil
4Universidade Federal do Parana, Departamento de Bioquímica e Biologia Molecular, Curitiba, Parana. Brasil
5Universidade de Sao Paulo, Faculdade de Medicina de Ribeirao Preto, Ribeirao Preto, Sao Paulo. Brasil
Year:
Season: Jun
Volumen: 41
Number: 2
Pages: 502-506
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, analítico
English abstract Lupinus albescens is a resistant cover plant that establishes symbiotic relationships with bacteria belonging to the Bradyrhizobium genus. This symbiosis helps the development of these plants in adverse environmental conditions, such as the ones found in arenized areas of Southern Brazil. This work studied three Bradyrhizobium sp. (AS23, NAS80 and NAS96) isolated from L. albescens plants that grow in extremely poor soils (arenized areas and adjacent grasslands). The genomes of these three strains were sequenced in the Ion Torrent platform using the IonXpress li- brary preparation kit, and presented a total number of bases of 1,230,460,823 for AS23, 1,320,104,022 for NAS80, and 1,236,105,093 for NAS96. The genome comparison with closest strains Bradyrhizobium japonicum USDA6 and Bradyrhizobium diazoefficiens USDA110 showed important variable regions (with less than 80% of similarity). Genes encoding for factors for resistance/tolerance to heavy metal, flagellar motility, response to osmotic and oxida - tive stresses, heat shock proteins (present only in the three sequenced genomes) could be responsible for the ability of these microorganisms to survive in inhospitable environments. Knowledge about these genomes will provide a foundation for future development of an inoculant bioproduct that should optimize the recovery of degraded soils us - ing cover crops
Disciplines: Biología,
Agrociencias
Keyword: Bacterias,
Genética,
Suelos,
Bradyrhizobium,
Areas arenizadas,
Suelos pobres,
Bacterias resistentes
Keyword: Bacteria,
Genetics,
Soils,
Bradyrhizobium,
Arenized areas,
Poor soils,
Resistant bacteria
Full text: Texto completo (Ver PDF)