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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
01/12/1997 |
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Data da última atualização: |
01/12/1997 |
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Autoria: |
COSTA LIMA, M. A.; VILAR, C. V.; REIS, V. M.; OLIVARES, F. L.; BALDANI, J. I.; FERREIRA, P. C. G.; HEMERLY, A. S. |
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Título: |
Detection of sugarcane (Saccharum officinarum L.) genes induced by endophytic nitrogen-fixing bacteria. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE BIOQUIMICA E BIOLOGIA MOLECULAR, 25., maio 1996, Caxambu. Resumos... Caxambu: Sociedade Brasileira de Bioquimica e Biologia Molecular, 1996. p.42. Resumo E-74. |
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Idioma: |
Inglês |
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Conteúdo: |
Nitrogen is an essential element for all living organisms,beig used for protcin and nucleic acids biosynthesis. it is assimilated by plants and animals as ammoniom(NH4) or nitrate (NO3).atmospheric nitrogen(N2)despite its abundance, cannot be utilized directly.biologic nitrogen fixation (BNF) is the process by wich atmosphcric nitrogen becone available and consiste basically in nitrogen reduction,in process caralyzed by enzymes. only a few species of bacteria and algae are able to do this process. endophytic nitrongen-fixing bacteria as acetobacter and herbaspirillum were foud in sugarcane tissues.in this symbiotic association, BNF occurs withont induction of nodule formation, in a system that differs from rhizobium-leguminoscre interaction. in this system, litle is known about plant-bacteria interaction of BNF in distinc sugarcane genotypes indicates that plant genetic factors are contributing to the efficiency of the process. the isolation and characterization of plant genes induced during the processes of recognition, colonization and nitrogen fixation by the bacteria wil provid tools for future genetic manipulation to obtain high rales of BNF. In order to study the role of the plant in this new system of symbiotic association we have useda modification of the differential disply technique to detect and isolate cDNAs corresponding to transcripts expressed in sugarcane plants infected wit Acetobacter diazotrophichs and Herbaspirillum spp..plants were propagated and infected in vitro. In a preliminary screenig, eight different random primers were selected to amplify cDNAs present only in infected plants. The differentially expressed bands obtained were eletud and reaplifiend using the same primers. Southern blot hybridizations using total cDNA-obtained from infected plants as probe are beig performed to confim differential expression. The induced genes will be cloned and further characterized. MenosNitrogen is an essential element for all living organisms,beig used for protcin and nucleic acids biosynthesis. it is assimilated by plants and animals as ammoniom(NH4) or nitrate (NO3).atmospheric nitrogen(N2)despite its abundance, cannot be utilized directly.biologic nitrogen fixation (BNF) is the process by wich atmosphcric nitrogen becone available and consiste basically in nitrogen reduction,in process caralyzed by enzymes. only a few species of bacteria and algae are able to do this process. endophytic nitrongen-fixing bacteria as acetobacter and herbaspirillum were foud in sugarcane tissues.in this symbiotic association, BNF occurs withont induction of nodule formation, in a system that differs from rhizobium-leguminoscre interaction. in this system, litle is known about plant-bacteria interaction of BNF in distinc sugarcane genotypes indicates that plant genetic factors are contributing to the efficiency of the process. the isolation and characterization of plant genes induced during the processes of recognition, colonization and nitrogen fixation by the bacteria wil provid tools for future genetic manipulation to obtain high rales of BNF. In order to study the role of the plant in this new system of symbiotic association we have useda modification of the differential disply technique to detect and isolate cDNAs corresponding to transcripts expressed in sugarcane plants infected wit Acetobacter diazotrophichs and Herbaspirillum spp..plants were propagated and infecte... Mostrar Tudo |
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Palavras-Chave: |
BNF; FBN; Fixacao biologica de nitrogenio; Nitrogen fixing bacteria; Sugar cane. |
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Thesagro: |
Bactéria; Cana de Açúcar; Parasito de Planta; Saccharum Officinarum. |
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Thesaurus Nal: |
endophytes. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02964naa a2200313 a 4500
001 1620946
005 1997-12-01
008 1996 bl uuuu u00u1 u #d
100 1 $aCOSTA LIMA, M. A.
245 $aDetection of sugarcane (Saccharum officinarum L.) genes induced by endophytic nitrogen-fixing bacteria.
260 $c1996
520 $aNitrogen is an essential element for all living organisms,beig used for protcin and nucleic acids biosynthesis. it is assimilated by plants and animals as ammoniom(NH4) or nitrate (NO3).atmospheric nitrogen(N2)despite its abundance, cannot be utilized directly.biologic nitrogen fixation (BNF) is the process by wich atmosphcric nitrogen becone available and consiste basically in nitrogen reduction,in process caralyzed by enzymes. only a few species of bacteria and algae are able to do this process. endophytic nitrongen-fixing bacteria as acetobacter and herbaspirillum were foud in sugarcane tissues.in this symbiotic association, BNF occurs withont induction of nodule formation, in a system that differs from rhizobium-leguminoscre interaction. in this system, litle is known about plant-bacteria interaction of BNF in distinc sugarcane genotypes indicates that plant genetic factors are contributing to the efficiency of the process. the isolation and characterization of plant genes induced during the processes of recognition, colonization and nitrogen fixation by the bacteria wil provid tools for future genetic manipulation to obtain high rales of BNF. In order to study the role of the plant in this new system of symbiotic association we have useda modification of the differential disply technique to detect and isolate cDNAs corresponding to transcripts expressed in sugarcane plants infected wit Acetobacter diazotrophichs and Herbaspirillum spp..plants were propagated and infected in vitro. In a preliminary screenig, eight different random primers were selected to amplify cDNAs present only in infected plants. The differentially expressed bands obtained were eletud and reaplifiend using the same primers. Southern blot hybridizations using total cDNA-obtained from infected plants as probe are beig performed to confim differential expression. The induced genes will be cloned and further characterized.
650 $aendophytes
650 $aBactéria
650 $aCana de Açúcar
650 $aParasito de Planta
650 $aSaccharum Officinarum
653 $aBNF
653 $aFBN
653 $aFixacao biologica de nitrogenio
653 $aNitrogen fixing bacteria
653 $aSugar cane
700 1 $aVILAR, C. V.
700 1 $aREIS, V. M.
700 1 $aOLIVARES, F. L.
700 1 $aBALDANI, J. I.
700 1 $aFERREIRA, P. C. G.
700 1 $aHEMERLY, A. S.
773 $tIn: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE BIOQUIMICA E BIOLOGIA MOLECULAR, 25., maio 1996, Caxambu. Resumos... Caxambu: Sociedade Brasileira de Bioquimica e Biologia Molecular, 1996. p.42. Resumo E-74.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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| Registros recuperados : 9 | |
| 2. |  | DALL'ORTO, F. A. C.; OJIMA, M.; BARBOSA, W.; MARTINS, F. P.; RIGITANO, O. 'Centenária' Nova Seleção de Ameixa Tardia para Clima Ameno. Pesquisa Agropecuária Brasileira, Brasília, v. 24, n.5, p. 579-581, maio 1989| Biblioteca(s): Embrapa Unidades Centrais. |
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| 3. | | BARBOSA, W.; OJIMA, M.; DALL'ORTO, F. A. C.; MARTINS, F. P.; LOVATE, A. A. Desenvolvimento dos Frutos e das Sementes de Pessegos Subtropicais de Diferentes Ciclos de Maturacao. Pesquisa Agropecuaria Brasileira, Brasilia, v.28, n.6, p.701-707,jun.1993| Biblioteca(s): Embrapa Unidades Centrais. |
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| 4. | | DALL'ORTO, F. A. C.; OJIMA, M.; BARBOSA, W.; MARTINS, F. P.; RIGITANO, O. 'Delicioso Precoce' - Nova Seleção de Pêssego do IAC para as Regiões mais Frias de São Paulo. Pesquisa Agropecuária Brasileira, Brasília, v.24, n.2, p. 233-239, fev.1989| Biblioteca(s): Embrapa Unidades Centrais. |
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| 5. | | OJIMA, M.; DALL'ORTO, F. A. C.; BARBOSA, W.; MARTINS, F. P.; SANTOS, R. R.; RIGITANO, O. Novas Cultivares IAC de Pêssegos Precoces: Tipos Jóia e Doçura1. Pesquisa Agropecuária Brasileira, Brasília, v.22, n.7, p.729-732, jul. 1987.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 6. | | OJIMA, M.; DALL'ORTO, F. A. C.; BARBOSA, W.; MARTINS, F. P.; SANTOS, R. R.; RIGITANO, O. Novas cultivares IAC de pessegos precoces: tipos joia e docura. Pesquisa Agropecuaria Brasileira, Brasilia, v.22, n.7, p.729-732, jul.1987.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 8. | | OJIMA, M.; DALL'ORTO, F. A. C.; RIGITANO, O.; SCARANARI, H. J.; MARTINS, F. P.; TOMBOLATO, A. F. C.; BARBOSA, W. Quatro novas cultivares IAC de pêssegos brancos de caroço solto. Pesquisa Agropecuária Brasileira, Brasília, v. 18, n. 9, p. 1009-1013. set. 1983. Título em inglês: Four new white-flesh and freestone peaches.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 9. | | PIRES, E. J. P.; POMMER, C. V.; TERRA, M. M.; SILVA, A. C. P. da; PASSOS, I. R. da S.; MARTINS, F. P.; COELHO, S. M. B. M.; RIBEIRO, I. J. A.; PEREIRA, F. M. Cultivares IAC de Uvas de Mesa Apirenas sobre Dois Porta-Enxertos. Pesquisa Agropecuaria Brasileira, Brasilia, v.27, n.3, p.449-453, mar.1992| Biblioteca(s): Embrapa Unidades Centrais. |
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| Registros recuperados : 9 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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