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 library 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 oxidative 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 using cover crops.
journal_name
Genet Mol Bioljournal_title
Genetics and molecular biologyauthors
Granada CE,Vargas LK,Sant'Anna FH,Balsanelli E,Baura VA,Oliveira Pedrosa F,Souza EM,Falcon T,Passaglia LMPdoi
10.1590/1678-4685-GMB-2017-0098subject
Has Abstractpub_date
2018-04-01 00:00:00pages
502-506issue
2eissn
1415-4757issn
1678-4685pii
S1415-47572018005008101journal_volume
41pub_type
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