Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1113997
Registro completo de metadados
Campo DCValorIdioma
dc.contributor.authorANTUNES, G. dos R.eng
dc.contributor.authorSANTANA, S. R. A.eng
dc.contributor.authorESCOBAR, I. E. C.eng
dc.contributor.authorBRASIL, M. da S.eng
dc.contributor.authorARAUJO, G. G. L. deeng
dc.contributor.authorVOLTOLINI, T. V.eng
dc.contributor.authorFERNANDES JUNIOR, P. I.eng
dc.date.accessioned2019-11-07T18:09:03Z-
dc.date.available2019-11-07T18:09:03Z-
dc.date.created2019-11-07
dc.date.issued2019
dc.identifier.citationCrop & Pasture Science, v. 70, p. 899-907, 2019.eng
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1113997-
dc.descriptionThe study of plant growth-promoting bacteria (PGPB) can identify outstanding bacteria for crops. For forage grasses adapted to drylands, the selection of PGPB can increase the field performance of pastures. The aim of this study was to isolate, and characterise at molecular, biochemical and symbiotic levels, diazotrophic bacteria obtained from buffel grass (Cenchrus ciliaris), sorghum (Sorghum bicolor) and Tifton 85 (Cynodon spp.) from Brazilian semi-arid region fields. Fieldgrown plants were collected, and the roots were surface-disinfected, crushed and inoculated in a semi-solid medium. After the formation and confirmation of microaerophilic pellicles, the bacteria were isolated and purified. All bacterial isolates were subjected to nifH gene amplification and identified by their partial 16S rRNA gene sequences. The bacteria were evaluated for the production of auxins and siderophores, calcium phosphate solubilisation, and diazotrophic ability as ?in vitro? plant growth-promotion traits. A plant inoculation assay was conducted to assess the plant growth promotion abilities of the bacterial isolates. Twenty-one bacterial isolates harboured the nifH gene (nifH+), among which nine were obtained from sorghum, eight from buffel grass, and four from Tifton 85. The bacterial isolates were classified as Bacillus (8), Stenotrophomonas (7), Agrobacterium (4), Cellulomonas (1) and Paenibacillus (1). All were shown to be auxin producers, with 14 isolates showing diazotrophic capacity ?in vitro?. Fourteen isolates increased plant N content, but the bacterial strains ESA 392 and ESA 398 (Bacillus), ESA 397 and ESA 407 (Stenotrophomonas), and ESA 401 (Agrobacterium) were shown to promote both plant growth and N nutrition. These strains are candidates for further assays to evaluate their agronomic performance under field conditions, aiming inoculant production for forage grasses in drylands.eng
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectSemiáridoeng
dc.subjectBactérias diazotróficaseng
dc.subjectCrescimento vegetaleng
dc.subjectSeleção de linhagemeng
dc.subjectFixação biológica de nitrogênioeng
dc.subjectPGPBeng
dc.titleAssociative diazotrophic bacteria from forage grasses in theBrazilian semi-arid region are effective plant growth promoters.eng
dc.typeArtigo de periódicoeng
dc.date.updated2019-11-07T18:09:03Z
dc.subject.thesagroGramínea Forrageiraeng
dc.subject.thesagroCaatingaeng
dc.subject.thesagroBactériaeng
dc.subject.thesagroCapim Buffeleng
dc.subject.thesagroSorgoeng
dc.subject.thesagroForragemeng
dc.subject.nalthesaurusForage grasseseng
riaa.ainfo.id1113997eng
riaa.ainfo.lastupdate2019-11-07
dc.identifier.doi10.1071/CP19076eng
dc.contributor.institutionGabiane dos Reis Antunes, UNIVASF; Sheilla Rios Assis Santana, UNIVASF; Indra Elena Costa Escobar, UNIVASF; Marivaine da Silva Brasil, Universidade Federal do Mato Grosso do Sul, Corumbá, MS; GHERMAN GARCIA LEAL DE ARAUJO, CPATSA; TADEU VINHAS VOLTOLINI, CPATSA; PAULO IVAN FERNANDES JUNIOR, CPATSA.eng
Aparece nas coleções:Artigo em periódico indexado (CPATSA)

Arquivos associados a este item:
Arquivo Descrição TamanhoFormato 
Associativediazotrophicbacteriafromforage2019.pdf306,45 kBAdobe PDFThumbnail
Visualizar/Abrir
Mostrar registro simples do item Visualizar estatísticas

FacebookTwitterDeliciousLinkedInGoogle BookmarksMySpace