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Genomic insights into the versatility of the plant growth-promoting bacterium Azospirillum amazonense

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Genomic insights into the versatility of the plant growth-promoting bacterium Azospirillum amazonense

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Título Genomic insights into the versatility of the plant growth-promoting bacterium Azospirillum amazonense
Autor Sant'Anna, Fernando Hayashi
Almeida, Luiz Gonzaga Paula de
Cecagno, Ricardo
Reolon, Luciano Antonio
Siqueira, Franciele Maboni
Machado, Maicon Ricardo Stange
Vasconcelos, Ana Tereza Ribeiro de
Schrank, Irene Silveira
Abstract Background: The species Azospirillum amazonense belongs to a well-known genus of plant growth-promoting bacteria. This bacterium is found in association with several crops of economic importance; however, there is a lack of information on its physiology. In this work, we present a comprehensive analysis of the genomic features of this species. Results: Genes of A. amazonense related to nitrogen/carbon metabolism, energy production, phytohormone production, transport, quorum sensing, antibiotic resistance, chemotaxis/motility and bacteriophytochrome biosynthesis were identified. Noteworthy genes were the nitrogen fixation genes and the nitrilase gene, which could be directly implicated in plant growth promotion, and the carbon fixation genes, which had previously been poorly investigated in this genus. One important finding was that some A. amazonense genes, like the nitrogenase genes and RubisCO genes, were closer phylogenetically to Rhizobiales members than to species of its own order. Conclusion: The species A. amazonense presents a versatile repertoire of genes crucial for its plant-associated lifestyle.
Contido em BMC Genomics. London. Vol. 12, no. 409 (Aug. 2011), p. 1-14
Assunto Azospirillum amazonense
Origem Estrangeiro
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/109965
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