1. Genome of Herbaspirillum seropedicae strain SmR1, a specialized diazotrophic endophyte of tropical grasses.
- Author
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Pedrosa FO, Monteiro RA, Wassem R, Cruz LM, Ayub RA, Colauto NB, Fernandez MA, Fungaro MH, Grisard EC, Hungria M, Madeira HM, Nodari RO, Osaku CA, Petzl-Erler ML, Terenzi H, Vieira LG, Steffens MB, Weiss VA, Pereira LF, Almeida MI, Alves LR, Marin A, Araujo LM, Balsanelli E, Baura VA, Chubatsu LS, Faoro H, Favetti A, Friedermann G, Glienke C, Karp S, Kava-Cordeiro V, Raittz RT, Ramos HJ, Ribeiro EM, Rigo LU, Rocha SN, Schwab S, Silva AG, Souza EM, Tadra-Sfeir MZ, Torres RA, Dabul AN, Soares MA, Gasques LS, Gimenes CC, Valle JS, Ciferri RR, Correa LC, Murace NK, Pamphile JA, Patussi EV, Prioli AJ, Prioli SM, Rocha CL, Arantes OM, Furlaneto MC, Godoy LP, Oliveira CE, Satori D, Vilas-Boas LA, Watanabe MA, Dambros BP, Guerra MP, Mathioni SM, Santos KL, Steindel M, Vernal J, Barcellos FG, Campo RJ, Chueire LM, Nicolás MF, Pereira-Ferrari L, Silva JL, Gioppo NM, Margarido VP, Menck-Soares MA, Pinto FG, Simão Rde C, Takahashi EK, Yates MG, and Souza EM
- Subjects
- Chromosomes, Plant, Herbaspirillum metabolism, Host-Pathogen Interactions, Nitrogen Fixation, Osmotic Pressure, Plant Proteins genetics, Plant Proteins metabolism, Genome, Plant, Herbaspirillum genetics
- Abstract
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., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2011
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