Artigo Acesso aberto Produção Nacional Revisado por pares

Genome of Herbaspirillum seropedicae Strain SmR1, a Specialized Diazotrophic Endophyte of Tropical Grasses

2011; Public Library of Science; Volume: 7; Issue: 5 Linguagem: Inglês

10.1371/journal.pgen.1002064

ISSN

1553-7404

Autores

Fábio O. Pedrosa, Rose A. Monteiro, Roseli Wassem, Leonardo M. Cruz, Ricardo Antônio Ayub, Nelson Barros Colauto, Maria Aparecida Fernandez, Maria Helena Pelegrinelli Fungaro, Edmundo C. Grisard, Mariangela Hungría, Humberto Maciel França Madeira, Rubens Onofre Nodari, Clarice Aoki Osaku, Maria Luiza Petzl‐Erler, Hernán Terenzi, Luiz Gonzaga Esteves Vieira, Maria Berenice Reynaud Steffens, Vinícius Almir Weiss, Luiz Filipe Protásio Pereira, Marina Isabel Mateus de Almeida, Lysangela R. Alves, Anelis Maria Marin, Luíza M. Araújo, Eduardo Balsanelli, Valter A. Baura, Leda S. Chubatsu, Helisson Faoro, Augusto Favetti, Geraldo R. Friedermann, Chirlei Glienke, Susan Grace Karp, Vanessa Kava, Roberto Tadeu Raittz, Humberto Josué de Oliveira Ramos, E.M.S.F. Ribeiro, L. U. Rigo, Saul Nitsche Rocha, Stefan Schwab, Anilda G. Silva, E. M. S. M. M. Souza, Michelle Zibetti Tadra‐Sfeir, Rodrigo Augusto Torres, Audrei Nisio Gebieluca Dabul, M. A. M. Soares, Luciano Seraphim Gasques, Ciela Carla Gimenes, Juliana Silveira do Valle, Ricardo Rodrigues Ciferri, Luiz Carlos Corrêa, Norma K. Murace, João Alencar Pamphile, Eliana Valéria Patussi, Alberto José Prioli, Sônia Maria Alves Pinto Prioli, C.L.M.S.C. Rocha, O. M. N. Arantes, Márcia Cristina Furlaneto, Leandro P. Godoy, Carlos Eduardo Coral de Oliveira, Daniele Satori, Laurival A. Vilas-Bôas, Maria Angélica Ehara Watanabe, Bibiana Paula Dambrós, Miguel Pedro Guerra, Sandra M. Mathioni, Karine Louise dos Santos, Mário Steindel, Javier Vernal, Fernando Gomes Barcellos, R. J. Campo, Ligia Maria Oliveira Chueire, Marisa Fabiana Nicolás, Lilian Pereira‐Ferrari, José Luis da Conceição Silva, Nereida M. R. Gioppo, Vladimir Pavan Margarido, Maria Amélia Menck Soares, Fabiana Gisele da Silva Pinto, Rita de Cássia Garcia Simão, Elizabete Keiko Takahashi, M. G. Yates, Emanuel Maltempi de Souza,

Tópico(s)

Microbial Community Ecology and Physiology

Resumo

The molecular mechanisms of plant recognition, colonization, and nutrient exchange between diazotrophic endophytes and plants are scarcely known. Herbaspirillum seropedicae is an endophytic bacterium capable of colonizing intercellular spaces of grasses such as rice and sugar cane. The genome of H. seropedicae strain SmR1 was sequenced and annotated by The Paraná State Genome Programme—GENOPAR. The genome is composed of a circular chromosome of 5,513,887 bp and contains a total of 4,804 genes. The genome sequence revealed that H. seropedicae is a highly versatile microorganism with capacity to metabolize a wide range of carbon and nitrogen sources and with possession of four distinct terminal oxidases. The genome contains a multitude of protein secretion systems, including type I, type II, type III, type V, and type VI secretion systems, and type IV pili, suggesting a high potential to interact with host plants. H. seropedicae is able to synthesize indole acetic acid as reflected by the four IAA biosynthetic pathways present. A gene coding for ACC deaminase, which may be involved in modulating the associated plant ethylene-signaling pathway, is also present. Genes for hemagglutinins/hemolysins/adhesins were found and may play a role in plant cell surface adhesion. These features may endow H. seropedicae with the ability to establish an endophytic life-style in a large number of plant species.

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