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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
01/03/2016 |
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Data da última atualização: |
19/06/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CERRO, P. del; ROLLA-SANTOS, A. A. P.; GOMES, D. F.; MARKS, B. B.; ESPUNY, M. del R.; RODRÍGUEZ-CARVAJAL, M. A.; SORIA-DÍAZ, M. E.; NAKATANI, A. S.; HUNGRIA, M.; JAVIER OLLERO, F.; MEGÍAS, M. |
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Afiliação: |
PABLO DEL CERRO, Universidad de Sevilla; AMANDA ALVES PAIVA ROLLA-SANTOS; DOUGLAS FABIANO GOMES; BETTINA BERQUÓ MARKS; MARÍA DEL ROSARIO ESPUNY, Universidad de Sevilla; MIGUEL ÁNGEL RODRÍGUEZ-CARVAJAL, Universidad de Sevilla; MARÍA EUGENIA SORIA-DÍAZ, CITIUS; ANDRÉ SHIGUEYOSHI NAKATAN; MARIANGELA HUNGRIA DA CUNHA, CNPSO; FRANCISCO JAVIER OLLERO; MANUEL MEGÍAS. |
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Título: |
Opening the "black box" of nodD3, nodD4 and nodD5 genes of Rhizobium tropici strain CIAT 899. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
BMC Genomics, v. 16, n. 1, p. 864, Oct. 2015. |
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ISSN: |
1471-2164 |
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DOI: |
10.1186/s12864-015-2033-z |
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Idioma: |
Inglês |
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Conteúdo: |
Transcription of nodulation genes in rhizobial species is orchestrated by the regulatory nodD gene. Rhizobium tropici strain CIAT 899 is an intriguing species in possessing features such as broad host range, high tolerance of abiotic stresses and, especially, by carrying the highest known number of nodD genes?five?and the greatest diversity of Nod factors (lipochitooligosaccharides, LCOs). Here we shed light on the roles of the multiple nodD genes of CIAT 899 by reporting, for the first time, results obtained with nodD3, nodD4 and nodD5 mutants. The three nodD mutants were built by insertion of ? interposon. Nod factors were purified and identified by LC-MS/MS analyses. In addition, nodD1 and nodC relative gene expressions were measured by quantitative RT-PCR in the wt and derivative mutant strains. Phenotypic traits such as exopolysaccharide (EPS), lipopolysaccharide (LPS), swimming and swarming motilities, biofilm formation and indole acetid acid (IAA) production were also perfomed. All these experiments were carried out in presence of both inducers of CIAT 899, apigenin and salt. Finally, nodulation assays were evaluated in up to six different legumes, including common bean (Phaseolus vulgaris L.). Phenotypic and symbiotic properties, Nod factors and gene expression of nodD3, nodD4 and nodD5 mutants were compared with those of the wild-type (WT) CIAT 899, both in the presence and in the absence of the nod-geneinducing molecule apigenin and of saline stress. No differences between the mutants and the WT were observed in exopolysaccharide (EPS) and lipopolysaccharide (LPS) profiles, motility, indole acetic acid (IAA) synthesis or biofilm production, either in the presence, or in the absence of inducers. Nodulation studies demonstrated the most complex regulatory system described so far, requiring from one (Leucaena leucocephala, Lotus burtii) to four (Lotus japonicus) nodD genes. Up to 38 different structures of Nod factors were detected, being higher under salt stress, except for the nodD5 mutant; in addition, a high number of structures was synthesized by the nodD4 mutant in the absence of any inducer. Probable activator (nodD3 and nodD5) or repressor roles (nodD4), possibly via nodD1 and/or nodD2, were attributed to the three nodD genes. Expression of nodC, nodD1 and each nodD studied by RT-qPCR confirmed that nodD3 is an activator of nodD1, both in the presence of apigenin and salt stress. In contrast, nodD4 might be an inducer with apigenin and a repressor under saline stress, whereas nodD5 was an inducer under both conditions. MenosTranscription of nodulation genes in rhizobial species is orchestrated by the regulatory nodD gene. Rhizobium tropici strain CIAT 899 is an intriguing species in possessing features such as broad host range, high tolerance of abiotic stresses and, especially, by carrying the highest known number of nodD genes?five?and the greatest diversity of Nod factors (lipochitooligosaccharides, LCOs). Here we shed light on the roles of the multiple nodD genes of CIAT 899 by reporting, for the first time, results obtained with nodD3, nodD4 and nodD5 mutants. The three nodD mutants were built by insertion of ? interposon. Nod factors were purified and identified by LC-MS/MS analyses. In addition, nodD1 and nodC relative gene expressions were measured by quantitative RT-PCR in the wt and derivative mutant strains. Phenotypic traits such as exopolysaccharide (EPS), lipopolysaccharide (LPS), swimming and swarming motilities, biofilm formation and indole acetid acid (IAA) production were also perfomed. All these experiments were carried out in presence of both inducers of CIAT 899, apigenin and salt. Finally, nodulation assays were evaluated in up to six different legumes, including common bean (Phaseolus vulgaris L.). Phenotypic and symbiotic properties, Nod factors and gene expression of nodD3, nodD4 and nodD5 mutants were compared with those of the wild-type (WT) CIAT 899, both in the presence and in the absence of the nod-geneinducing molecule apigenin and of saline stress. No differences... Mostrar Tudo |
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Thesagro: |
Bacteriologia do solo; Fixação de nitrogênio; Nodulação; Rhizobium. |
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Thesaurus Nal: |
Bacteriology; Nitrogen fixation; Nodulation. |
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Categoria do assunto: |
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/140562/1/12864-2015-Article-2033.pdf
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Marc: |
LEADER 03591naa a2200349 a 4500
001 2039242
005 2017-06-19
008 2015 bl uuuu u00u1 u #d
022 $a1471-2164
024 7 $a10.1186/s12864-015-2033-z$2DOI
100 1 $aCERRO, P. del
245 $aOpening the "black box" of nodD3, nodD4 and nodD5 genes of Rhizobium tropici strain CIAT 899.$h[electronic resource]
260 $c2015
520 $aTranscription of nodulation genes in rhizobial species is orchestrated by the regulatory nodD gene. Rhizobium tropici strain CIAT 899 is an intriguing species in possessing features such as broad host range, high tolerance of abiotic stresses and, especially, by carrying the highest known number of nodD genes?five?and the greatest diversity of Nod factors (lipochitooligosaccharides, LCOs). Here we shed light on the roles of the multiple nodD genes of CIAT 899 by reporting, for the first time, results obtained with nodD3, nodD4 and nodD5 mutants. The three nodD mutants were built by insertion of ? interposon. Nod factors were purified and identified by LC-MS/MS analyses. In addition, nodD1 and nodC relative gene expressions were measured by quantitative RT-PCR in the wt and derivative mutant strains. Phenotypic traits such as exopolysaccharide (EPS), lipopolysaccharide (LPS), swimming and swarming motilities, biofilm formation and indole acetid acid (IAA) production were also perfomed. All these experiments were carried out in presence of both inducers of CIAT 899, apigenin and salt. Finally, nodulation assays were evaluated in up to six different legumes, including common bean (Phaseolus vulgaris L.). Phenotypic and symbiotic properties, Nod factors and gene expression of nodD3, nodD4 and nodD5 mutants were compared with those of the wild-type (WT) CIAT 899, both in the presence and in the absence of the nod-geneinducing molecule apigenin and of saline stress. No differences between the mutants and the WT were observed in exopolysaccharide (EPS) and lipopolysaccharide (LPS) profiles, motility, indole acetic acid (IAA) synthesis or biofilm production, either in the presence, or in the absence of inducers. Nodulation studies demonstrated the most complex regulatory system described so far, requiring from one (Leucaena leucocephala, Lotus burtii) to four (Lotus japonicus) nodD genes. Up to 38 different structures of Nod factors were detected, being higher under salt stress, except for the nodD5 mutant; in addition, a high number of structures was synthesized by the nodD4 mutant in the absence of any inducer. Probable activator (nodD3 and nodD5) or repressor roles (nodD4), possibly via nodD1 and/or nodD2, were attributed to the three nodD genes. Expression of nodC, nodD1 and each nodD studied by RT-qPCR confirmed that nodD3 is an activator of nodD1, both in the presence of apigenin and salt stress. In contrast, nodD4 might be an inducer with apigenin and a repressor under saline stress, whereas nodD5 was an inducer under both conditions.
650 $aBacteriology
650 $aNitrogen fixation
650 $aNodulation
650 $aBacteriologia do solo
650 $aFixação de nitrogênio
650 $aNodulação
650 $aRhizobium
700 1 $aROLLA-SANTOS, A. A. P.
700 1 $aGOMES, D. F.
700 1 $aMARKS, B. B.
700 1 $aESPUNY, M. del R.
700 1 $aRODRÍGUEZ-CARVAJAL, M. A.
700 1 $aSORIA-DÍAZ, M. E.
700 1 $aNAKATANI, A. S.
700 1 $aHUNGRIA, M.
700 1 $aJAVIER OLLERO, F.
700 1 $aMEGÍAS, M.
773 $tBMC Genomics$gv. 16, n. 1, p. 864, Oct. 2015.
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Registro original: |
Embrapa Soja (CNPSO) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Semiárido. Para informações adicionais entre em contato com cpatsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
05/07/1996 |
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Data da última atualização: |
08/08/2023 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
NUNES, R. F. de M.; ALBUQUERQUE, J. A. S. de; ARAGAO, O. P. |
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Afiliação: |
REGINA FERRO DE MELO NUNES, CPATSA; JOAO ANTONIO SILVA DE ALBUQUERQUE, CPATSA; OCTAVIO PESSOA ARAGAO, CPATSA. |
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Título: |
Efeito de tipos de poda na produção de videira, cultivar pirovano 65 (Vitis vinifera, L.) no Vale do São Francisco. |
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Ano de publicação: |
1979 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 5., 1979, Pelotas. Anais... Pelotas: SBF, 1979. |
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Páginas: |
v. 2, p. 698-707. |
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Idioma: |
Português |
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Conteúdo: |
Constituindo-se a poda seca num fator decisivo para melhoria da produtividade e qualidade dos frutos, dirigiu-se o presente estudo no intuido de verificar diferentes tipos de poda. O trabalho foi iniciado em 1976, e conduzido na Estação Experimental do submédio São Francisco, Petrolina, PE, que apresenta solos aluviais. O delineamento utilizado foi blocos ao acaso, 6 repetições e 4 tratamentos, sendo um testemunha (sem poda), poda curta, longa e mista, em cordão esporando bilateral. Utilizou-se a cultivar Pirovano 65 (Itália), com um espaçamento de 2,00 m entre plantas e 3,00 m entre linhas, conduzido em meia-latada. Os resultados demonstraram que para as condições do Vale do São Francisco, a poda influenciou positivamente a produção da videira. As podas mistas e longa foram mais recomendáveis para obtenção de colheitas com produções mais altas. Quanto ao aspecto qualitativo de brix e acidez, não se detectou influência nos tipos de poda estudados. |
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Palavras-Chave: |
Grape; Nordeste; Northeast; Production; Vale do São Francisco; Variety; Videira. |
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Thesagro: |
Poda; Produção; Uva; Variedade; Vitis Vinifera. |
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Thesaurus NAL: |
Grapes; pruning. |
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Categoria do assunto: |
A Sistemas de Cultivo |
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Marc: |
LEADER 01860nam a2200313 a 4500
001 1132702
005 2023-08-08
008 1979 bl uuuu u00u1 u #d
100 1 $aNUNES, R. F. de M.
245 $aEfeito de tipos de poda na produção de videira, cultivar pirovano 65 (Vitis vinifera, L.) no Vale do São Francisco.
260 $aIn: CONGRESSO BRASILEIRO DE FRUTICULTURA, 5., 1979, Pelotas. Anais... Pelotas: SBF$c1979
300 $av. 2, p. 698-707.
520 $aConstituindo-se a poda seca num fator decisivo para melhoria da produtividade e qualidade dos frutos, dirigiu-se o presente estudo no intuido de verificar diferentes tipos de poda. O trabalho foi iniciado em 1976, e conduzido na Estação Experimental do submédio São Francisco, Petrolina, PE, que apresenta solos aluviais. O delineamento utilizado foi blocos ao acaso, 6 repetições e 4 tratamentos, sendo um testemunha (sem poda), poda curta, longa e mista, em cordão esporando bilateral. Utilizou-se a cultivar Pirovano 65 (Itália), com um espaçamento de 2,00 m entre plantas e 3,00 m entre linhas, conduzido em meia-latada. Os resultados demonstraram que para as condições do Vale do São Francisco, a poda influenciou positivamente a produção da videira. As podas mistas e longa foram mais recomendáveis para obtenção de colheitas com produções mais altas. Quanto ao aspecto qualitativo de brix e acidez, não se detectou influência nos tipos de poda estudados.
650 $aGrapes
650 $apruning
650 $aPoda
650 $aProdução
650 $aUva
650 $aVariedade
650 $aVitis Vinifera
653 $aGrape
653 $aNordeste
653 $aNortheast
653 $aProduction
653 $aVale do São Francisco
653 $aVariety
653 $aVideira
700 1 $aALBUQUERQUE, J. A. S. de
700 1 $aARAGAO, O. P.
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