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Registro Completo |
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
07/11/2019 |
Data da última atualização: |
07/11/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ANTUNES, G. dos R.; SANTANA, S. R. A.; ESCOBAR, I. E. C.; BRASIL, M. da S.; ARAUJO, G. G. L. de; VOLTOLINI, T. V.; FERNANDES JUNIOR, P. I. |
Afiliação: |
Gabiane 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. |
Título: |
Associative diazotrophic bacteria from forage grasses in theBrazilian semi-arid region are effective plant growth promoters. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Crop & Pasture Science, v. 70, p. 899-907, 2019. |
DOI: |
10.1071/CP19076 |
Idioma: |
Inglês |
Conteúdo: |
The 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. MenosThe 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 ... Mostrar Tudo |
Palavras-Chave: |
Bactérias diazotróficas; Crescimento vegetal; Fixação biológica de nitrogênio; PGPB; Seleção de linhagem; Semiárido. |
Thesagro: |
Bactéria; Caatinga; Capim Buffel; Forragem; Gramínea Forrageira; Sorgo. |
Thesaurus Nal: |
Forage grasses. |
Categoria do assunto: |
S Ciências Biológicas |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/204359/1/Associative-diazotrophic-bacteria-from-forage-2019.pdf
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Marc: |
LEADER 02992naa a2200361 a 4500 001 2113997 005 2019-11-07 008 2019 bl uuuu u00u1 u #d 024 7 $a10.1071/CP19076$2DOI 100 1 $aANTUNES, G. dos R. 245 $aAssociative diazotrophic bacteria from forage grasses in theBrazilian semi-arid region are effective plant growth promoters.$h[electronic resource] 260 $c2019 520 $aThe 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. 650 $aForage grasses 650 $aBactéria 650 $aCaatinga 650 $aCapim Buffel 650 $aForragem 650 $aGramínea Forrageira 650 $aSorgo 653 $aBactérias diazotróficas 653 $aCrescimento vegetal 653 $aFixação biológica de nitrogênio 653 $aPGPB 653 $aSeleção de linhagem 653 $aSemiárido 700 1 $aSANTANA, S. R. A. 700 1 $aESCOBAR, I. E. C. 700 1 $aBRASIL, M. da S. 700 1 $aARAUJO, G. G. L. de 700 1 $aVOLTOLINI, T. V. 700 1 $aFERNANDES JUNIOR, P. I. 773 $tCrop & Pasture Science$gv. 70, p. 899-907, 2019.
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Embrapa Semiárido (CPATSA) |
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Biblioteca(s): |
Embrapa Florestas. |
Data corrente: |
28/01/2013 |
Data da última atualização: |
21/10/2013 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
MOTA, R. R.; MARQUES, L. F. A.; LOPES, P. S.; RESENDE, M. D. V. de; SILVA, F. G. da. |
Afiliação: |
Rodrigo Reis Mota, Doutorando da UFV; Luiz fernando Aarão Marques, UNIVERSIDADE FEDERAL DO ESPÓRITO SANTO; Paulo Sávio Lopes, UFV; MARCOS DEON VILELA DE RESENDE, CNPF; Felipe Gomes da Silva, Doutorando da UFV. |
Título: |
Inclusão de animais oriundos da técnica de transferência de embriões, na estimação de parâmetros genéticos de bovinos da raça Simental. |
Ano de publicação: |
2012 |
Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE MELHORAMENTO ANIMAL, 9., 2012, João Pessoa. Trabalhos. João Pessoa: Sociedade Brasileira de Melhoramento Animal, 2012. |
Idioma: |
Português |
Notas: |
Disponibilizado online. |
Palavras-Chave: |
Avaliação genética; Herdabilidade; Peso coroporal; Raça Simental. |
Thesagro: |
Bovino. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/75443/1/2012-M.Deon-CRBTB-Parametros.pdf
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Marc: |
LEADER 00823nam a2200217 a 4500 001 1946618 005 2013-10-21 008 2012 bl uuuu u00u1 u #d 100 1 $aMOTA, R. R. 245 $aInclusão de animais oriundos da técnica de transferência de embriões, na estimação de parâmetros genéticos de bovinos da raça Simental.$h[electronic resource] 260 $aIn: SIMPÓSIO BRASILEIRO DE MELHORAMENTO ANIMAL, 9., 2012, João Pessoa. Trabalhos. João Pessoa: Sociedade Brasileira de Melhoramento Animal$c2012 500 $aDisponibilizado online. 650 $aBovino 653 $aAvaliação genética 653 $aHerdabilidade 653 $aPeso coroporal 653 $aRaça Simental 700 1 $aMARQUES, L. F. A. 700 1 $aLOPES, P. S. 700 1 $aRESENDE, M. D. V. de 700 1 $aSILVA, F. G. da
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