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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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Biblioteca |
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Tipo/Formato |
Classificação |
Cutter |
Registro |
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Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Amazônia Oriental; Embrapa Mandioca e Fruticultura; Embrapa Meio-Norte; Embrapa Semiárido. |
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Data corrente: |
17/11/2021 |
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Data da última atualização: |
30/11/2021 |
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Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
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Autoria: |
MACHADO, C. de F.; OLIVEIRA, V. R. de; ALVES, R. M.; VASCONCELOS, L. F. L.; SOUZA, F. X. de; RITZINGER, R.; FONSECA, N.; SOARES FILHO, W. dos S.; CASTRO, A. C. R. de. |
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Afiliação: |
CRISTINA DE FATIMA MACHADO, CNPMF; VISELDO RIBEIRO DE OLIVEIRA, CPATSA; RAFAEL MOYSES ALVES, CPATU; LUCIO FLAVO LOPES VASCONCELOS, CPAMN; FRANCISCO XAVIER DE SOUZA, CNPAT; ROGERIO RITZINGER, CNPMF; NELSON FONSECA, CNPMF; WALTER DOS SANTOS SOARES FILHO, CNPMF; ANA CECILIA RIBEIRO DE CASTRO, CNPAT. |
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Título: |
Bancos genéticos de cajá, umbu e espécies afins. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
In: SILVA JUNIOR, J. F. da; SOUZA, F. V. D.; PADUA, J. G. (ed.). A arca de Noé das frutas nativas brasileiras. Brasília, DF: Embrapa, 2021. Cap. 10 p.120-39. |
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Idioma: |
Português |
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Conteúdo: |
O grupo Spondias - cajá (S. mombin L.), umbu (S. tuberosa Arruda Câmara) e espécies afins - merece destaque pelo número de espécies importantes comercialmente e pelo fenômeno de hibridação natural entre as suas espécies, que deu origem a frutas nativas muito apreciadas pela população, como a umbuguela e a cajaguela. O gênero Spondias é formado por cerca de 18 espécies distribuídas nas regiões tropicais e subtropicais da Ásia, da Oceania e dos Neotrópicos. As espécies desse gênero, no Brasil, têm como centro de diversidade, sobretudo, o Bioma Caatinga e as florestas úmidas (Floresta Amazônica e Mata Atlântica). A Embrapa possui cinco bancos genéticos de espécies do gênero Spondias distribuídos pelos estados da Bahia, Pernambuco, Ceará, Piauí e Pará. Estes bancos conservam acessos de cajá ou taperebá, de umbu, de umbu-cajá (S. bahiensis P. Carvalho, Van den Berg & M. Machado) e dos híbridos naturais umbuguela e cajaguela, além de acessos de duas espécies estrangeiras: a ciriguela (S. purpurea L.), nativa do México e América Central, e a cajarana ou cajá-manga (S. dulcis Parkinson), nativa da Polinésia. |
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Palavras-Chave: |
Banco de gemoplasma; Frutas nativas; Taperebá. |
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Thesagro: |
Cajá; Espécie Nativa; Melhoramento Genético Vegetal; Spondias Mombin; Spondias Tuberosa; Umbu. |
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Thesaurus NAL: |
Spondias. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/227968/1/Bancos-geneticos-de-caja-2021.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/227898/1/Bancos-geneticos-de-caja-2021.pdf
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Marc: |
LEADER 02193naa a2200337 a 4500
001 2136389
005 2021-11-30
008 2021 bl uuuu u00u1 u #d
100 1 $aMACHADO, C. de F.
245 $aBancos genéticos de cajá, umbu e espécies afins.$h[electronic resource]
260 $c2021
520 $aO grupo Spondias - cajá (S. mombin L.), umbu (S. tuberosa Arruda Câmara) e espécies afins - merece destaque pelo número de espécies importantes comercialmente e pelo fenômeno de hibridação natural entre as suas espécies, que deu origem a frutas nativas muito apreciadas pela população, como a umbuguela e a cajaguela. O gênero Spondias é formado por cerca de 18 espécies distribuídas nas regiões tropicais e subtropicais da Ásia, da Oceania e dos Neotrópicos. As espécies desse gênero, no Brasil, têm como centro de diversidade, sobretudo, o Bioma Caatinga e as florestas úmidas (Floresta Amazônica e Mata Atlântica). A Embrapa possui cinco bancos genéticos de espécies do gênero Spondias distribuídos pelos estados da Bahia, Pernambuco, Ceará, Piauí e Pará. Estes bancos conservam acessos de cajá ou taperebá, de umbu, de umbu-cajá (S. bahiensis P. Carvalho, Van den Berg & M. Machado) e dos híbridos naturais umbuguela e cajaguela, além de acessos de duas espécies estrangeiras: a ciriguela (S. purpurea L.), nativa do México e América Central, e a cajarana ou cajá-manga (S. dulcis Parkinson), nativa da Polinésia.
650 $aSpondias
650 $aCajá
650 $aEspécie Nativa
650 $aMelhoramento Genético Vegetal
650 $aSpondias Mombin
650 $aSpondias Tuberosa
650 $aUmbu
653 $aBanco de gemoplasma
653 $aFrutas nativas
653 $aTaperebá
700 1 $aOLIVEIRA, V. R. de
700 1 $aALVES, R. M.
700 1 $aVASCONCELOS, L. F. L.
700 1 $aSOUZA, F. X. de
700 1 $aRITZINGER, R.
700 1 $aFONSECA, N.
700 1 $aSOARES FILHO, W. dos S.
700 1 $aCASTRO, A. C. R. de
773 $tIn: SILVA JUNIOR, J. F. da; SOUZA, F. V. D.; PADUA, J. G. (ed.). A arca de Noé das frutas nativas brasileiras. Brasília, DF: Embrapa, 2021. Cap. 10 p.120-39.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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