Produção Nacional
Revisado por pares
Complete genome sequence of the sugarcane nitrogen-fixing endophyte Gluconacetobacter diazotrophicus Pal5
2009; BioMed Central; Volume: 10; Issue: 1 Linguagem: Inglês
10.1186/1471-2164-10-450
ISSN1471-2164
AutoresMarcelo Bertalan, Rodolpho Mattos Albano, Vânia de Pádua, Luc Felicianus Marie Rouws, Cristian Antonio Rojas, Adriana S. Hemerly, K. R. dos S. Teixeira, Stefan Schwab, Jean Luiz Simões‐Araújo, André Luíz Martinez de Oliveira, Leonardo França, Viviane de Souza Magalhães, Sylvia Maria Campbell Alquéres, Alexander Machado Cardoso, Welington Inácio Almeida, Marcio Martins Loureiro, Eduardo Matos Nogueira, Daniela Anhel de Paula Cidade, D.A.A. Oliveira, Tatiana de Almeida Simão, Jacyara Maria Brito Macedo, Ana Luiza Chaves Valadão, Marcela Dreschsel, Flávia Alvim Dutra de Freitas, Márcia Soares Vidal, Helma V. Guedes, Elisete Pains Rodrigues, Carlos Meneses, P. S. T. Brioso, L. Pozzer, Daniel Vazquez Figueiredo, H. G. Montano, J. Q. de Oliveira Júnior, Gonçalo Apolinário de Souza Filho, Víctor Flores, Beatriz Ferreira, Alan T. Branco, Paula Josefina Gómez, Heloisa Guillobel, Melissa Lemos, Luiz Fernando Bessa Seibel, José Macedo, Márcio Alves‐Ferreira, Gilberto Sachetto‐Martins, Ana Coelho, Eidy de Oliveira Santos, Gilda Rose S. Amaral, Anna Luiza Santana Neves, Ana Beatriz Furlanetto Pacheco, Daniela Carvalho, Letícia Lery, Paulo M. Bisch, Shaila C. Rössle, Turán P. Ürményi, Alessandra Rael Pereira, Rosane Silva, Edson Rondinelli, Wanda von Krüger, Orlando Martins, José Ivo Baldani, Paulo CG Ferreira,
Tópico(s)Microbial metabolism and enzyme function
ResumoAbstract Background Gluconacetobacter diazotrophicus Pal5 is an endophytic diazotrophic bacterium that lives in association with sugarcane plants. It has important biotechnological features such as nitrogen fixation, plant growth promotion, sugar metabolism pathways, secretion of organic acids, synthesis of auxin and the occurrence of bacteriocins. Results Gluconacetobacter diazotrophicus Pal5 is the third diazotrophic endophytic bacterium to be completely sequenced. Its genome is composed of a 3.9 Mb chromosome and 2 plasmids of 16.6 and 38.8 kb, respectively. We annotated 3,938 coding sequences which reveal several characteristics related to the endophytic lifestyle such as nitrogen fixation, plant growth promotion, sugar metabolism, transport systems, synthesis of auxin and the occurrence of bacteriocins. Genomic analysis identified a core component of 894 genes shared with phylogenetically related bacteria. Gene clusters for gum -like polysaccharide biosynthesis, tad pilus, quorum sensing, for modulation of plant growth by indole acetic acid and mechanisms involved in tolerance to acidic conditions were identified and may be related to the sugarcane endophytic and plant-growth promoting traits of G. diazotrophicus . An accessory component of at least 851 genes distributed in genome islands was identified, and was most likely acquired by horizontal gene transfer. This portion of the genome has likely contributed to adaptation to the plant habitat. Conclusion The genome data offer an important resource of information that can be used to manipulate plant/bacterium interactions with the aim of improving sugarcane crop production and other biotechnological applications.
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