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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrobiologia. Para informações adicionais entre em contato com cnpab.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
06/05/2008 |
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Data da última atualização: |
16/03/2015 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RODRIGUES, E. P.; RODRIGUES, L. da S.; OLIVEIRA, A. L. M. de; BALDANI, V. L. D.; TEIXEIRA, K. R. dos S.; URQUIAGA, S.; REIS, V. M. |
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Afiliação: |
Elisete Pains Rodrigues, UFRRJ; Luciana da Silva Rodrigues, UFRRJ; André Luiz Martinez de Oliveira, UFRRJ; Vera Lúcia Divan Baldani, Embrapa Agrobiologia; Kátia Regina dos Santos Teixeira, Embrapa Agrobiologia; Segundo Urquiaga, Embrapa Agrobiologia; Veronica Massena Reis, Embrapa Agrobiologia. |
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Título: |
Azospirillum amazonense inoculation: effects on growth, yield and N2 fixation of rice (Oryza sativa L.). |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
Plant and Soil, The Netherlands, v. 302, n. 1-2, p. 249-261, jan. 2008. |
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Idioma: |
Inglês |
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Notas: |
Parceria: UFRRJ. |
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Conteúdo: |
Bacteria of the genus Azospirillum are considered to be plant-growth promoting bacteria (PGPR) and stimulate plant growth directly either by synthesising phyto-hormones or by promoting nutrition by the process of biological nitrogen fixation (BNF). Although this genus extensively studied, the effects of inoculation and the possible BNF contribution of the Azospirillum amazonense specie are very scarce. The aim of this study was to isolate, characterise and evaluate auxin production and nitrogenase activity of this species and to select, by inoculation of rice plants, promising isolates based on their ability to improve plant growth, yield and the BNF contribution. One hundred and ten isolates obtained ftom rice were characterised and grouped according to colony features. Forty-two isolates, confirmed as A. amazonense by the fluorescent in situ hybridization (FISH) technique, were tested for auxin production and nitrogenase activity in vitro. Subsequently plant growth promotion related to plant nutrition effect was evaluated, in vitro and in greenhouse experiments. The BNF contribution to plant growth was evaluated using the 15N isotope dilution technique. All A. amazonense strains tested produced indoles, but only 10% of them showed high production, above 1.33 µM mg protein-1. The nitro-genase activity also was variable and only 9% of isolates showed high nitrogenase activity and the majority (54%) exhibited a low potential. The inocu-lation of selected strains in rice under gnotobiotic conditions reduced the growth of root and aerial part when compared to the control, showing the negative effects of excess of phytohormone accumulation in the medium. However, in the greenhouse experiment, inoculation of strains of A. amazonense increased grain dry matter accumulation (7 to 11.6%), the number of panicles (3 to 18.6%) and nitrogen accumulation at grain maturation (3.5 to 18.5%). BNF contributions up to 27% were observed for A. amazonense Y2 (wild type strain). The data presented here is the first report that the PGPR effect of A. amazonense for rice plants grown under greenhouse conditions is mainly due the BNF contribution as measured by 15N isotope dilution technique, in contrast to the hormonal effect observed with other Azospirillum species studied. MenosBacteria of the genus Azospirillum are considered to be plant-growth promoting bacteria (PGPR) and stimulate plant growth directly either by synthesising phyto-hormones or by promoting nutrition by the process of biological nitrogen fixation (BNF). Although this genus extensively studied, the effects of inoculation and the possible BNF contribution of the Azospirillum amazonense specie are very scarce. The aim of this study was to isolate, characterise and evaluate auxin production and nitrogenase activity of this species and to select, by inoculation of rice plants, promising isolates based on their ability to improve plant growth, yield and the BNF contribution. One hundred and ten isolates obtained ftom rice were characterised and grouped according to colony features. Forty-two isolates, confirmed as A. amazonense by the fluorescent in situ hybridization (FISH) technique, were tested for auxin production and nitrogenase activity in vitro. Subsequently plant growth promotion related to plant nutrition effect was evaluated, in vitro and in greenhouse experiments. The BNF contribution to plant growth was evaluated using the 15N isotope dilution technique. All A. amazonense strains tested produced indoles, but only 10% of them showed high production, above 1.33 µM mg protein-1. The nitro-genase activity also was variable and only 9% of isolates showed high nitrogenase activity and the majority (54%) exhibited a low potential. The inocu-lation of selected strains in rice under... Mostrar Tudo |
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Palavras-Chave: |
Biological nitrogen fixation; BNF; FBN; Fixação biológica de nitrogênio; Growth. |
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Thesagro: |
Arroz; Crescimento; Oryza Sativa. |
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Thesaurus Nal: |
Azospirillum amazonense; rice. |
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Categoria do assunto: |
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Marc: |
LEADER 03231naa a2200325 a 4500
001 1629942
005 2015-03-16
008 2008 bl --- 0-- u #d
100 1 $aRODRIGUES, E. P.
245 $aAzospirillum amazonense inoculation$beffects on growth, yield and N2 fixation of rice (Oryza sativa L.).
260 $c2008
500 $aParceria: UFRRJ.
520 $aBacteria of the genus Azospirillum are considered to be plant-growth promoting bacteria (PGPR) and stimulate plant growth directly either by synthesising phyto-hormones or by promoting nutrition by the process of biological nitrogen fixation (BNF). Although this genus extensively studied, the effects of inoculation and the possible BNF contribution of the Azospirillum amazonense specie are very scarce. The aim of this study was to isolate, characterise and evaluate auxin production and nitrogenase activity of this species and to select, by inoculation of rice plants, promising isolates based on their ability to improve plant growth, yield and the BNF contribution. One hundred and ten isolates obtained ftom rice were characterised and grouped according to colony features. Forty-two isolates, confirmed as A. amazonense by the fluorescent in situ hybridization (FISH) technique, were tested for auxin production and nitrogenase activity in vitro. Subsequently plant growth promotion related to plant nutrition effect was evaluated, in vitro and in greenhouse experiments. The BNF contribution to plant growth was evaluated using the 15N isotope dilution technique. All A. amazonense strains tested produced indoles, but only 10% of them showed high production, above 1.33 µM mg protein-1. The nitro-genase activity also was variable and only 9% of isolates showed high nitrogenase activity and the majority (54%) exhibited a low potential. The inocu-lation of selected strains in rice under gnotobiotic conditions reduced the growth of root and aerial part when compared to the control, showing the negative effects of excess of phytohormone accumulation in the medium. However, in the greenhouse experiment, inoculation of strains of A. amazonense increased grain dry matter accumulation (7 to 11.6%), the number of panicles (3 to 18.6%) and nitrogen accumulation at grain maturation (3.5 to 18.5%). BNF contributions up to 27% were observed for A. amazonense Y2 (wild type strain). The data presented here is the first report that the PGPR effect of A. amazonense for rice plants grown under greenhouse conditions is mainly due the BNF contribution as measured by 15N isotope dilution technique, in contrast to the hormonal effect observed with other Azospirillum species studied.
650 $aAzospirillum amazonense
650 $arice
650 $aArroz
650 $aCrescimento
650 $aOryza Sativa
653 $aBiological nitrogen fixation
653 $aBNF
653 $aFBN
653 $aFixação biológica de nitrogênio
653 $aGrowth
700 1 $aRODRIGUES, L. da S.
700 1 $aOLIVEIRA, A. L. M. de
700 1 $aBALDANI, V. L. D.
700 1 $aTEIXEIRA, K. R. dos S.
700 1 $aURQUIAGA, S.
700 1 $aREIS, V. M.
773 $tPlant and Soil, The Netherlands$gv. 302, n. 1-2, p. 249-261, jan. 2008.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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| Registros recuperados : 58 | |
| 2. |  | AMARAL, R.; SEDREZ, F.; MITTELMANN, A.; PIRES, E.; LONGARAY, M. Afilhamento e número de folhas por afilho em famílias de meios-irmãos de azevém (Lolium multiflorum). In: CONGRESSO DE INICIAÇÃO CIENTIFICA, 18.; ENCONTRO DE PÓS GRADUAÇÃO, 11., E MOSTRA CIENTIFICA, 1., 2009, Pelotas. Anais... Pelotas: UFPel, 2009. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| 6. | | BRAGA, R. P.; AMARAL. R. do A.; FREIRE, L. R.; BALDANI, V. L. D. Altura e perfilhamento de arroz inoculado com bactérias diazotróficas sob adubação com residuos de agroindústria. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 31.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 15.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 13.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 10., 2014, Araxá. Fertilidade e biologia do solo: integração e tecnologias para todos: anais. Araxá: Núcleo Regional Leste da Sociedade Brasileira de Ciência do Solo, 2014. FertBio 2014.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 8. | | AUAD, A. M.; SOUZA, L. S.; AMARAL, R. L.; SILVA, D. M.; OLIVEIRA, S. A. Dinâmica populacional de Deois schach (Fabricius, 1787) (Hemiptera: Cercopidae) em Brachiaria brizantha (Germain e Evrard). In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 22., 2008, Uberlândia. Ciência, tecnologia e inovação: resumos... Curitiba: Sociedade Brasileira de Entomologia, 2008.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 9. | | AMARAL, R. O.; RODRIGUES, G.; SANTOS, R. S. S.; SUGAYAMA, R. L.; KOVALESKI, A. Linha básica de suscetibilidade de Bonagota salubricola (Meyrick) (Lepidoptera: Tortricidae) a Agree (inseticida à base de Bacillus Thuringiensis). In: MOSTRA DE INICIAÇÃO CIENTÍFICA, PÓS-GRADUAÇÃO E PESQUISA EM VACARIA, 7., 2007, Vacaria. [Resumos...] Vacaria: UCS: UERGS, 2007. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Uva e Vinho. |
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| 13. | | SEDREZ, F. da S.; MITTELMANN, A.; PIRES, E. da S.; AMARAL, R. P. do. Variabilidade para descritores em uma população de azevém da cultivar comum. In:SIMPÓSIO INTERNACIONAL SOBRE MELHORAMENTO DE FORRAGEIRAS, 2., 2009, Campo Grande, MS. [Anais]... Campo Grande, MS: Embrapa Gado de Corte, 2009. 1 CD-ROM.| Biblioteca(s): Embrapa Clima Temperado. |
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| 14. | | SEDREZ, F. da S.; MITTELMANN, A.; PIRES, E. da S.; AMARAL, R. P. do. Variabilidade para descritores em uma população de azevém da cultivar comum. In:SIMPÓSIO INTERNACIONAL SOBRE MELHORAMENTO DE FORRAGEIRAS, 2., 2009, Campo Grande, MS. [Anais]... Campo Grande, MS: Embrapa Gado de Corte, 2009.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 15. | | AMARAL, R. P. do; MITTELMANN, A.; CASTRO, R. L. de; PIRES, E. da S.; GABANA, A.; LONGARAY, M. B. Avaliação de caracteres de produtividade em populações melhoradas de azevém. In: CONGRESSO BRASILEIRO DE MELHORAMENTO DE PLANTAS, 5., 2009, Guarapari. O melhoramento e os novos cenários da agricultura: anais. Vitória: Incaper, 2009.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 16. | | PRABHU, A. S.; BEDENDO, I. P.; FARIA, J. C.; SOUZA, D. M. de; SOAVE, J.; AMARAL, R. E. M. Fontes de resistência vertical a Pyricularia oryzae em arroz. Summa Phytopathologica, v. 8, n. 1/2, p. 78-90, jan./abr. 1982.| Tipo: Artigo em Periódico Indexado |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 18. | | AUAD, A. M.; OLIVEIRA, S. A. de; SOUZA, L. S.; SILVA, D. M. da; AMARAL, R. L. Efeito da temperatura sobre a fase adulta de Rhopalosiphum padi (Linnaeus, 1758) (Hemiptera: aphididae). In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 22., 2008, Uberlândia. Ciência, tecnologia e inovação: resumos... Curitiba: Sociedade Brasileira de Entomologia, 2008.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 19. | | BATISTA, E. S. de P.; AUAD, A. M.; MONTEIRO, C. M. de O.; SOUZA, L. S. de; AMARAL, R. L. Capacidade de penetração de nematóides entomopatogênicos em ovos da cigarrinha Mahanarva fimbriolata (Hemiptera: Cercopidae). In: CONGRESSO BRASILEIRO DE ENTOMOLOGIA, 22., 2008, Uberlândia. Ciência, tecnologia e inovação: resumos... Curitiba: Sociedade Brasileira de Entomologia, 2008.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Gado de Leite. |
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| 20. | | PIRES, E. da S.; AMARAL, R. P. do; LONGARAY, M. B.; MITTELMANN, A.; CASTRO, R. L. de. Avaliação do hábito de crescimento de população de azevém. In: CONGRESSO DE INICIAÇÃO CIENTÍFICA, 2.; ENCONTRO DE PÓS GRADUAÇÃO DA EMBRAPA CLIMA TEMPERADO, 2., 2008, Pelotas. anais... Pelotas: Embrapa Clima Temperado, 2008. p. 55 Volume 1.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Clima Temperado. |
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| Registros recuperados : 58 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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