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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
05/03/2012 |
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Data da última atualização: |
19/01/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
WIEBKE-STROHM, B.; PASQUALI, G.; MARGIS-PINHEIRO, M.; BENCKE, M.; BÜCKER-NETO, L.; BECKER-RITT, A. B.; MARTINELLI, A. H. S.; RECHENMACHER, C.; POLACCO, J. C.; STOLF, R.; MARCELINO, F. C.; ABDELNOOR, R. V.; HOMRICH, M. S.; DEL PONTE, E. M.; CARLINI, C. R.; CARVALHO, M. C. C. G. de; BODANESE-ZANETTINI, M. H. |
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Afiliação: |
BEATRIZ WIEBKE-STROHM, UFRGS; GIANCARLO PASQUALI, UFRGS; MÁRCIA MARGIS-PINHEIRO, UFRGS; MARTA BENCKE, UFRGS; LAURO BÜCKER NETO, UFRGS; ARLETE B. BECKER-RITT, UFRGS; ANNE H. S. MARTINELLI, UFRGS; CILIANA RECHENMACHER, UFRGS; JOSEPH C. POLACCO, University of Missouri; RENATA STOLF, CNPSo; FRANCISMAR CORREA MARCELINO, CNPSO; RICARDO VILELA ABDELNOOR, CNPSO; MILENA S. HOMRICH, UFRGS; EMERSON M. DEL PONTE, UFRGS; CELIA R. CARLINI, UFRGS; MAYRA C. C. G. DE CARVALHO, CNPSo; MARIA HELENA BODANESE-ZANETTINI, UFRGS. |
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Título: |
Ubiquitous urease affects soybean susceptibility to fungi. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Plant Molecular Biology, The Hague, v. 79, n. 1/2, p. 75-87, May 2012. |
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DOI: |
DOI 10.1007/s11103-012-9894-1 |
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Idioma: |
Inglês |
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Conteúdo: |
The soybean ubiquitous urease (encoded by GmEu4) is responsible for recycling metabolically derived urea. Additional biological roles have been demonstrated for plant ureases, notably in toxicity to other organisms. However, urease enzymatic activity is not related to its toxicity. The role of GmEu4 in soybean susceptibility to fungi was investigated in this study. A differential expression pattern of GmEu4 was observed in susceptible and resistant genotypes of soybeans over the course of a Phakopsora pachyrhizi infection, especially 24 h after infection. Twenty-nine adult, transgenic soybean plants, representing six independently transformed lines, were obtained. Although the initial aim of this study was to overexpress GmEu4, the transgenic plants exhibited GmEu4 co-suppression and decreased ureolytic activity. The growth of Rhizoctonia solani, Phomopsis sp., and Penicillium herguei in media containing a crude protein extract from either transgenic or non-transgenic leaves was evaluated. The fungal growth was higher in the protein extracts from transgenic urease-deprived plants than in extracts from nontransgenic controls. When infected by P. pachyrhizi uredospores, detached leaves of urease-deprived plants developed a significantly higher number of lesions, pustules and erupted pustules than leaves of non-transgenic plants containing normal levels of the enzyme. The results of the present work show that the soybean plants were more susceptible to fungi in the absence of urease. It was not possible to overexpress active GmEu4. For future work, overexpression of urease fungitoxic peptides could be attempted as an alternative approach. MenosThe soybean ubiquitous urease (encoded by GmEu4) is responsible for recycling metabolically derived urea. Additional biological roles have been demonstrated for plant ureases, notably in toxicity to other organisms. However, urease enzymatic activity is not related to its toxicity. The role of GmEu4 in soybean susceptibility to fungi was investigated in this study. A differential expression pattern of GmEu4 was observed in susceptible and resistant genotypes of soybeans over the course of a Phakopsora pachyrhizi infection, especially 24 h after infection. Twenty-nine adult, transgenic soybean plants, representing six independently transformed lines, were obtained. Although the initial aim of this study was to overexpress GmEu4, the transgenic plants exhibited GmEu4 co-suppression and decreased ureolytic activity. The growth of Rhizoctonia solani, Phomopsis sp., and Penicillium herguei in media containing a crude protein extract from either transgenic or non-transgenic leaves was evaluated. The fungal growth was higher in the protein extracts from transgenic urease-deprived plants than in extracts from nontransgenic controls. When infected by P. pachyrhizi uredospores, detached leaves of urease-deprived plants developed a significantly higher number of lesions, pustules and erupted pustules than leaves of non-transgenic plants containing normal levels of the enzyme. The results of the present work show that the soybean plants were more susceptible to fungi in the absence of u... Mostrar Tudo |
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Palavras-Chave: |
Penicillium herguei; Transformação genética. |
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Thesagro: |
Fungo; Phomopsis; Queima da saia; Soja. |
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Thesaurus Nal: |
Genetic transformation; Soybeans. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02843naa a2200421 a 4500
001 1917463
005 2017-01-19
008 2012 bl uuuu u00u1 u #d
024 7 $aDOI 10.1007/s11103-012-9894-1$2DOI
100 1 $aWIEBKE-STROHM, B.
245 $aUbiquitous urease affects soybean susceptibility to fungi.
260 $c2012
520 $aThe soybean ubiquitous urease (encoded by GmEu4) is responsible for recycling metabolically derived urea. Additional biological roles have been demonstrated for plant ureases, notably in toxicity to other organisms. However, urease enzymatic activity is not related to its toxicity. The role of GmEu4 in soybean susceptibility to fungi was investigated in this study. A differential expression pattern of GmEu4 was observed in susceptible and resistant genotypes of soybeans over the course of a Phakopsora pachyrhizi infection, especially 24 h after infection. Twenty-nine adult, transgenic soybean plants, representing six independently transformed lines, were obtained. Although the initial aim of this study was to overexpress GmEu4, the transgenic plants exhibited GmEu4 co-suppression and decreased ureolytic activity. The growth of Rhizoctonia solani, Phomopsis sp., and Penicillium herguei in media containing a crude protein extract from either transgenic or non-transgenic leaves was evaluated. The fungal growth was higher in the protein extracts from transgenic urease-deprived plants than in extracts from nontransgenic controls. When infected by P. pachyrhizi uredospores, detached leaves of urease-deprived plants developed a significantly higher number of lesions, pustules and erupted pustules than leaves of non-transgenic plants containing normal levels of the enzyme. The results of the present work show that the soybean plants were more susceptible to fungi in the absence of urease. It was not possible to overexpress active GmEu4. For future work, overexpression of urease fungitoxic peptides could be attempted as an alternative approach.
650 $aGenetic transformation
650 $aSoybeans
650 $aFungo
650 $aPhomopsis
650 $aQueima da saia
650 $aSoja
653 $aPenicillium herguei
653 $aTransformação genética
700 1 $aPASQUALI, G.
700 1 $aMARGIS-PINHEIRO, M.
700 1 $aBENCKE, M.
700 1 $aBÜCKER-NETO, L.
700 1 $aBECKER-RITT, A. B.
700 1 $aMARTINELLI, A. H. S.
700 1 $aRECHENMACHER, C.
700 1 $aPOLACCO, J. C.
700 1 $aSTOLF, R.
700 1 $aMARCELINO, F. C.
700 1 $aABDELNOOR, R. V.
700 1 $aHOMRICH, M. S.
700 1 $aDEL PONTE, E. M.
700 1 $aCARLINI, C. R.
700 1 $aCARVALHO, M. C. C. G. de
700 1 $aBODANESE-ZANETTINI, M. H.
773 $tPlant Molecular Biology, The Hague$gv. 79, n. 1/2, p. 75-87, May 2012.
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Embrapa Soja (CNPSO) |
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Registro Completo
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Biblioteca(s): |
Embrapa Café. |
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Data corrente: |
17/03/2017 |
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Data da última atualização: |
17/03/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
RODRIGUES, W. N.; TOMAZ, M. A.; FERRAO, M. A. G.; MARTINS, L. D.; COLODETTI, T. V.; BRINATE, S. V. B.; AMARAL, J. F. T.; SOBREIRA, F. M.; APOSTÓLICO, M. A. |
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Afiliação: |
Universidade Federal do Espírito Santo; Universidade Federal do Espírito Santo; MARIA AMELIA GAVA FERRAO, SAPC; Universidade Federal do Espírito Santo; Universidade Federal do Espírito Santo; Universidade Federal do Espírito Santo; Universidade Federal do Espírito Santo; Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão rural, Domingos Martins; Instituto Capixaba de Pesquisa, Assistência Técnica e Extensão rural, Domingos Martins. |
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Título: |
Biometry and diversity of Arabica coffee genotypes cultivated in a high density plant system. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Genetic and Molecular Research, v. 15, n. 1, Feb. 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
The present study was developed to respond to the need for an increase in crop yield in the mountain region of Caparaó (southern Espírito Santo State, Brazil), an area of traditional coffee production. This study aimed to analyze the diversity and characterize the crop yield of genotypes of Coffea arabica L. with potential for cultivation in high plant density systems. In addition, it also aimed to quantify the expression of agronomic traits in this cultivation system and provide information on the genotypes with the highest cultivation potential in the studied region. The experiment followed a randomized block design with 16 genotypes, four repetitions, and six plants per experimental plot. Plant spacing was 2.00 x 0.60 m, with a total of 8333 plants per hectare, representing a high-density cultivation system. Coffee plants were cultivated until the start of their reproductive phenological cycles and were evaluated along four complete reproductive cycles. Genotypes with high crop yield and beverage quality, short canopy, and rust resistance were selected. C. arabica genotypes showed variability in almost all characteristics. It was possible to identify different responses among genotypes grown in a high plant density cultivation system. Although the chlorophyll a content was similar among genotypes, the genotypes Acauã, Araponga MG1, Sacramento MG1, Tupi, and Catuaí IAC 44 showed a higher chlorophyll b content than the other genotypes. Among these, Sacramento MG1 also showed high leafiness and growth of vegetative structures, whereas Araponga MG1, Pau-Brasil MG1, and Tupi showed high fruit production. In addition, Araponga MG1 had also a higher and more stable crop yield over the years. MenosThe present study was developed to respond to the need for an increase in crop yield in the mountain region of Caparaó (southern Espírito Santo State, Brazil), an area of traditional coffee production. This study aimed to analyze the diversity and characterize the crop yield of genotypes of Coffea arabica L. with potential for cultivation in high plant density systems. In addition, it also aimed to quantify the expression of agronomic traits in this cultivation system and provide information on the genotypes with the highest cultivation potential in the studied region. The experiment followed a randomized block design with 16 genotypes, four repetitions, and six plants per experimental plot. Plant spacing was 2.00 x 0.60 m, with a total of 8333 plants per hectare, representing a high-density cultivation system. Coffee plants were cultivated until the start of their reproductive phenological cycles and were evaluated along four complete reproductive cycles. Genotypes with high crop yield and beverage quality, short canopy, and rust resistance were selected. C. arabica genotypes showed variability in almost all characteristics. It was possible to identify different responses among genotypes grown in a high plant density cultivation system. Although the chlorophyll a content was similar among genotypes, the genotypes Acauã, Araponga MG1, Sacramento MG1, Tupi, and Catuaí IAC 44 showed a higher chlorophyll b content than the other genotypes. Among these, Sacramento MG1 also showe... Mostrar Tudo |
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Palavras-Chave: |
Coffee; Densidade de planta. |
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Thesagro: |
Clorofila; Coffea Arábica. |
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Thesaurus NAL: |
Chlorophyll; Crop yield; Dry matter partitioning; Plant density. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02620naa a2200313 a 4500
001 2067233
005 2017-03-17
008 2016 bl uuuu u00u1 u #d
100 1 $aRODRIGUES, W. N.
245 $aBiometry and diversity of Arabica coffee genotypes cultivated in a high density plant system.$h[electronic resource]
260 $c2016
520 $aThe present study was developed to respond to the need for an increase in crop yield in the mountain region of Caparaó (southern Espírito Santo State, Brazil), an area of traditional coffee production. This study aimed to analyze the diversity and characterize the crop yield of genotypes of Coffea arabica L. with potential for cultivation in high plant density systems. In addition, it also aimed to quantify the expression of agronomic traits in this cultivation system and provide information on the genotypes with the highest cultivation potential in the studied region. The experiment followed a randomized block design with 16 genotypes, four repetitions, and six plants per experimental plot. Plant spacing was 2.00 x 0.60 m, with a total of 8333 plants per hectare, representing a high-density cultivation system. Coffee plants were cultivated until the start of their reproductive phenological cycles and were evaluated along four complete reproductive cycles. Genotypes with high crop yield and beverage quality, short canopy, and rust resistance were selected. C. arabica genotypes showed variability in almost all characteristics. It was possible to identify different responses among genotypes grown in a high plant density cultivation system. Although the chlorophyll a content was similar among genotypes, the genotypes Acauã, Araponga MG1, Sacramento MG1, Tupi, and Catuaí IAC 44 showed a higher chlorophyll b content than the other genotypes. Among these, Sacramento MG1 also showed high leafiness and growth of vegetative structures, whereas Araponga MG1, Pau-Brasil MG1, and Tupi showed high fruit production. In addition, Araponga MG1 had also a higher and more stable crop yield over the years.
650 $aChlorophyll
650 $aCrop yield
650 $aDry matter partitioning
650 $aPlant density
650 $aClorofila
650 $aCoffea Arábica
653 $aCoffee
653 $aDensidade de planta
700 1 $aTOMAZ, M. A.
700 1 $aFERRAO, M. A. G.
700 1 $aMARTINS, L. D.
700 1 $aCOLODETTI, T. V.
700 1 $aBRINATE, S. V. B.
700 1 $aAMARAL, J. F. T.
700 1 $aSOBREIRA, F. M.
700 1 $aAPOSTÓLICO, M. A.
773 $tGenetic and Molecular Research$gv. 15, n. 1, Feb. 2016.
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