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Registro Completo |
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Biblioteca(s): |
Embrapa Meio-Norte. |
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Data corrente: |
19/01/2009 |
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Data da última atualização: |
24/07/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
KOBAYASHI, A. K.; DIAZ TRUJILLO, C.; LEE, T. van der; ZWIERS, L.-H.; PAIVA, L. V.; SOUZA JUNIOR, M. T.; KEMA, G. H. J. |
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Afiliação: |
ADILSON KENJI KOBAYASHI, CPAMN; CAUCASELLA DIAZ TRUJILLO, PLANT RESEARCH INTERNATIONAL; THEO VAN DER LEE; LUTE-HARM ZWIERS; LUCIANO V. PAIVA, FEDERAL UNIVERSITY OF LAVRAS; MANOEL TEIXEIRA SOUZA JUNIOR, EMBRAPA LABEX EUROPE; GERT H. J. KEMA, PLANT RESEARCH INTERNATIONAL. |
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Título: |
Generation of transgenic Mycosphaerella fijiensis expressing reporter genes: tools for pathogenicity and mating studies. |
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Ano de publicação: |
2008 |
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Fonte/Imprenta: |
In: INTERNATIONAL MYCOSPHAERELLA AND STAGONOSPORA SYMPOSIUM, 7., 2008. Ascona, Switzerland. Program, Presentations, Abstracts. Ascona, Switzerland, 2008. |
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Idioma: |
Inglês |
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Conteúdo: |
Mycosphaerella fijiensis, the causal agent of black leaf streak disease is the most devastating pathogen of banana and plantains. Detailed studies on the plant pathogen interaction as well as mating behavior could be improved by the use of non-destructive reporter gene assays. M. fijiensis isolates from different global populations and opposite mating types, CIRAD86 (Mat1-1) from Cameroon and CIRAD139A (Mat1-2) from Colombia, were selected for our studies. In order to generate transgenic M. fijiensis strains, two gene constructs carrying either reporter genes gfp (green fluorescent protein) or dsred (Discosoma sp. red fluorescent protein) driven by the constitutive promoter PtoxA were used. Both constructs also carried the hph gene for resistance to the antibiotic hygromycin as selective marker. Transformation procedures mediated by Agrobacterium tumefaciens strain LBA1100 were carried out using macerated mycelium from 3-week-old cultures of CIRAD86 and CIRAD139A. After the cocultivation period, the cultures were transferred to selective medium containing 30 mg/l hygromycin. Transgenic events were identified by fluorescent microscopy observations after 2-3 weeks. In this part of the work, we were able to generate transgenic strains from both isolates expressing either reporter genes, namely CIRAD86::GFP, CIRAD86::DsRed, CIRAD139A::GFP and CIRAD139A::DsRed. Simultaneously, pathogenicity validation screens and mating assays using in vitro leaf fragments are also being conducted in order to characterize the different stages in the pathogenesis on banana. MenosMycosphaerella fijiensis, the causal agent of black leaf streak disease is the most devastating pathogen of banana and plantains. Detailed studies on the plant pathogen interaction as well as mating behavior could be improved by the use of non-destructive reporter gene assays. M. fijiensis isolates from different global populations and opposite mating types, CIRAD86 (Mat1-1) from Cameroon and CIRAD139A (Mat1-2) from Colombia, were selected for our studies. In order to generate transgenic M. fijiensis strains, two gene constructs carrying either reporter genes gfp (green fluorescent protein) or dsred (Discosoma sp. red fluorescent protein) driven by the constitutive promoter PtoxA were used. Both constructs also carried the hph gene for resistance to the antibiotic hygromycin as selective marker. Transformation procedures mediated by Agrobacterium tumefaciens strain LBA1100 were carried out using macerated mycelium from 3-week-old cultures of CIRAD86 and CIRAD139A. After the cocultivation period, the cultures were transferred to selective medium containing 30 mg/l hygromycin. Transgenic events were identified by fluorescent microscopy observations after 2-3 weeks. In this part of the work, we were able to generate transgenic strains from both isolates expressing either reporter genes, namely CIRAD86::GFP, CIRAD86::DsRed, CIRAD139A::GFP and CIRAD139A::DsRed. Simultaneously, pathogenicity validation screens and mating assays using in vitro leaf fragments are also being conducte... Mostrar Tudo |
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Palavras-Chave: |
CIRAD139A; CIRAD86; DsRed; GFP. |
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Thesagro: |
Doença; Fungo. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/69938/1/GenerationTransgenic-22676.pdf
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Marc: |
LEADER 02408nam a2200253 a 4500
001 1069938
005 2023-07-24
008 2008 bl uuuu u00u1 u #d
100 1 $aKOBAYASHI, A. K.
245 $aGeneration of transgenic Mycosphaerella fijiensis expressing reporter genes$btools for pathogenicity and mating studies.$h[electronic resource]
260 $aIn: INTERNATIONAL MYCOSPHAERELLA AND STAGONOSPORA SYMPOSIUM, 7., 2008. Ascona, Switzerland. Program, Presentations, Abstracts. Ascona, Switzerland$c2008
520 $aMycosphaerella fijiensis, the causal agent of black leaf streak disease is the most devastating pathogen of banana and plantains. Detailed studies on the plant pathogen interaction as well as mating behavior could be improved by the use of non-destructive reporter gene assays. M. fijiensis isolates from different global populations and opposite mating types, CIRAD86 (Mat1-1) from Cameroon and CIRAD139A (Mat1-2) from Colombia, were selected for our studies. In order to generate transgenic M. fijiensis strains, two gene constructs carrying either reporter genes gfp (green fluorescent protein) or dsred (Discosoma sp. red fluorescent protein) driven by the constitutive promoter PtoxA were used. Both constructs also carried the hph gene for resistance to the antibiotic hygromycin as selective marker. Transformation procedures mediated by Agrobacterium tumefaciens strain LBA1100 were carried out using macerated mycelium from 3-week-old cultures of CIRAD86 and CIRAD139A. After the cocultivation period, the cultures were transferred to selective medium containing 30 mg/l hygromycin. Transgenic events were identified by fluorescent microscopy observations after 2-3 weeks. In this part of the work, we were able to generate transgenic strains from both isolates expressing either reporter genes, namely CIRAD86::GFP, CIRAD86::DsRed, CIRAD139A::GFP and CIRAD139A::DsRed. Simultaneously, pathogenicity validation screens and mating assays using in vitro leaf fragments are also being conducted in order to characterize the different stages in the pathogenesis on banana.
650 $aDoença
650 $aFungo
653 $aCIRAD139A
653 $aCIRAD86
653 $aDsRed
653 $aGFP
700 1 $aDIAZ TRUJILLO, C.
700 1 $aLEE, T. van der
700 1 $aZWIERS, L.-H.
700 1 $aPAIVA, L. V.
700 1 $aSOUZA JUNIOR, M. T.
700 1 $aKEMA, G. H. J.
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Registro original: |
Embrapa Meio-Norte (CPAMN) |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
16/11/2016 |
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Data da última atualização: |
16/11/2016 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
COSTA, A. M.; MORAES, K. L. de; FONSECA, S. R. B.; CARVALHO, R. V. de; MALAQUIAS, J. V. |
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Afiliação: |
ANA MARIA COSTA, CPAC; KELVIN LUIZ DE MORAES, UPIS; SAMUEL RIBEIRO BORGES FONSECA, UPIS; ROBERTO VIEIRA DE CARVALHO, UNB; JUACI VITORIA MALAQUIAS, CPAC. |
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Título: |
Germinação de sementes armazenadas de Passiflora setacea BRS PC. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE FRUTICULTURA, 24., 2016, São Luis. Fruticultura: fruteiras nativas e sustentabilidade. São Luis, MA: SBF, 2016. |
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Idioma: |
Português |
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Conteúdo: |
Com a finalidade de desenvolver uma metodologia que permita a comercialização da variedade por sementes, o trabalho objetivou avaliar a taxa de germinação de sementes armazenadas pré-tratadas com indutores vegetativos em relação às armazenadas e tratadas no momento do plantio. |
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Palavras-Chave: |
Passiflora setacea; Sementes; Taxa de germinação. |
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Thesagro: |
Cerrado; Maracujá. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/150094/1/trabalho-1814.pdf
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Marc: |
LEADER 00975nam a2200217 a 4500
001 2056466
005 2016-11-16
008 2016 bl uuuu u00u1 u #d
100 1 $aCOSTA, A. M.
245 $aGerminação de sementes armazenadas de Passiflora setacea BRS PC.
260 $aIn: CONGRESSO BRASILEIRO DE FRUTICULTURA, 24., 2016, São Luis. Fruticultura: fruteiras nativas e sustentabilidade. São Luis, MA: SBF$c2016
520 $aCom a finalidade de desenvolver uma metodologia que permita a comercialização da variedade por sementes, o trabalho objetivou avaliar a taxa de germinação de sementes armazenadas pré-tratadas com indutores vegetativos em relação às armazenadas e tratadas no momento do plantio.
650 $aCerrado
650 $aMaracujá
653 $aPassiflora setacea
653 $aSementes
653 $aTaxa de germinação
700 1 $aMORAES, K. L. de
700 1 $aFONSECA, S. R. B.
700 1 $aCARVALHO, R. V. de
700 1 $aMALAQUIAS, J. V.
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