Data/hora: 21/06/2024 05:27:50

Biblioteca(s): | Embrapa Semiárido.
Data corrente: | 04/12/2018
Data da última atualização: | 15/01/2019
Autoria: | SILVA, J. F. da; SILVA, T. R. da; ESCOBAR, I. E. C.; FRAIZ, A. C. R.; SANTOS, J. W. M. dos; NASCIMENTO, T. R. do; SANTOS, J. M. R. dos; PETERS, S. J. W.; MELO, R. F. de; SIGNOR, D.; FERNANDES JUNIOR, P. I.
Afiliação: | JÉSSICA FERNANDA DA SILVA, UNIVASF; THAISE ROSA DA SILVA, UNIVASF; INDRA ELENA COSTA ESCOBAR, UNIVASF; ANA CARLA RESENDE FRAIZ, UNIVASF; JONNATHAN WHINY MORAES DOS SANTOS, UEPB; TAILANE RIBEIRO DO NASCIMENTO, Universidade do Estado da Bahia, Departamento de Tecnologia e Ciências Sociais; JOÃO MARCOS RODRIGUES DOS SANTOS, Universidade Federal do Ceará; SAMUEL JAMES WINDSOR PETERS, Emory University, Dowman Drive, 201, Atlanta, GA; ROSELI FREIRE DE MELO, CPATSA; DIANA SIGNOR DEON, CPATSA; PAULO IVAN FERNANDES JUNIOR, CPATSA.
Título: | Screening of plant growth promotion ability among bacteria isolated from field-grown sorghum under different managements in Brazilian drylands.
Ano de publicação: | 2018
Fonte/Imprenta: | World Journal of Microbiology and Biotechnology, v. 34, n. 12, 186, nov. 2018.
ISSN: | 1573-0972 (Online)
DOI: | 10.1007/s11274-018-2568-7
Idioma: | Inglês
Conteúdo: | Sorghum [Sorghum bicolor (L.) Moench] is a multipurpose grass cultivated in drylands due to its adaptation to drought. However the characteristics of sorghum-associated bacteria are not known in the Brazilian drylands. The aim of this study was to isolate and evaluate the plant growth promotion potential bacteria from field-grown sorghum under two irrigation and manure application levels in a Brazilian semi-arid reagion. Sorghum was irrigated with 3 or 1 mm day? 1 and fertilized or not with liquid goat manure. Bacteria were obtained from surface-disinfected roots applying two nitrogen-free semi-solid media. The bacteria were evaluated for the presence of nifH gene, 16S rRNA sequences, calcium-phosphate solubilization, production of auxins and siderophores and for sorghum growth promotion. We obtained 20 out of 24 positive bacteria for nifH. The isolates were classified as in six different genera. All isolates produced auxins “in vitro”, six bacteria produced siderophores and three Enterobacteriaceae solubilized calcium-phosphate. At least ten bacteria resulted in the increased total N content in the sorghum shoots, comparable to fertilization with 50 mg N plant?1 week? 1 and to inoculation with Azospirillum brasilense Ab-V5. Enterobacter sp. ESA 57 was the best sorghum plant-growth promoting bacteria isolated in this study.
Palavras-Chave: | Fixação biológica de nitrogenio; Promoção do crescimento vegetal; Semiárido.
Thesagro: | Bactéria; Inoculante; Sorgo.
Thesaurus Nal: | Enterobacteriaceae; Nitrogen fixation; Sorghum bicolor subsp. bicolor.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
Registro original: | Embrapa Semiárido (CPATSA)
Exemplares: | CPATSA - (57814-1) - UPC - AP - DD -  -  -  - DIS