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 | Acesso ao texto completo restrito à biblioteca da Embrapa Clima Temperado. Para informações adicionais entre em contato com cpact.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Meio Ambiente. |
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Data corrente: |
02/12/2011 |
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Data da última atualização: |
28/10/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CUADRA, S. V.; COSTA, M. H.; KUCHARIK, C. J.; ROCHA, H. R. da; TATSCH, J. D.; INMAN-BAMBER, G.; ROCHA, R. P. da; LEITE, C. C.; CABRAL, O. M. R. |
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Afiliação: |
SANTIAGO VIANNA CUADRA, CPACT; M. H. COSTA; C. J. KUCHARIK; H. R. DA ROCHA; J. D. TATSCH; G . INMAN-BAMBER; R. P. DA ROCHA; C. C . L E I T E; OSVALDO MACHADO RODRIGUES CABRAL, CNPMA. |
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Título: |
A biophysical model of Sugarcane growth. |
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Ano de publicação: |
2012 |
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Fonte/Imprenta: |
Global Change Biology. Bioenergy, v. 4, n. 1, p. 36-48, 2012. |
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Idioma: |
Inglês |
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Conteúdo: |
Scientists predict that global agricultural lands will expand over the next few decades due to increasing demands for food production and an exponential increase in cropbased biofuel production. These changes in land use will greatly impact biogeochemical and biogeophysical cycles across the globe. It is therefore important to develop models that can accurately simulate the interactions between the atmosphere and important crops. In this study, we develop and validate a new process-based sugarcane model (included as a module within the Agro-IBIS dynamic agro-ecosystem model) which can be applied at multiple spatial scales. At site level, the model systematically under/ overestimated the daily sensible/latent heat flux (by -10.5% and 14.8%, H and kE, respectively) when compared against the micrometeorological observations from southeast Brazil. The model underestimated ET (relative bias between -10.1% and ?12.5%) when compared against an agro-meteorological field experiment from northeast Australia. At the regional level, the model accurately simulated average yield for the four largest mesoregions (clusters of municipalities) in the state of Sa?o Paulo, Brazil, over a period of 16 years, with a yield relative bias of 0.68% to 1.08%. Finally, the simulated annual average sugarcane yield over 31 years for the state of Louisiana (US) had a low relative bias (-2.67%), but exhibited a lower interannual variability than the observed yields. |
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Palavras-Chave: |
Biophysical; Cana-de-açúcar; Ciclos biogeoquímicos; Land surface model; Sugarcane model. |
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Thesagro: |
Biocombustível; Impacto ambiental. |
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Thesaurus Nal: |
Biofuels; Climate change; Sugarcane. |
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Categoria do assunto: |
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P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02371naa a2200337 a 4500
001 1940240
005 2014-10-28
008 2012 bl uuuu u00u1 u #d
100 1 $aCUADRA, S. V.
245 $aA biophysical model of Sugarcane growth.$h[electronic resource]
260 $c2012
520 $aScientists predict that global agricultural lands will expand over the next few decades due to increasing demands for food production and an exponential increase in cropbased biofuel production. These changes in land use will greatly impact biogeochemical and biogeophysical cycles across the globe. It is therefore important to develop models that can accurately simulate the interactions between the atmosphere and important crops. In this study, we develop and validate a new process-based sugarcane model (included as a module within the Agro-IBIS dynamic agro-ecosystem model) which can be applied at multiple spatial scales. At site level, the model systematically under/ overestimated the daily sensible/latent heat flux (by -10.5% and 14.8%, H and kE, respectively) when compared against the micrometeorological observations from southeast Brazil. The model underestimated ET (relative bias between -10.1% and ?12.5%) when compared against an agro-meteorological field experiment from northeast Australia. At the regional level, the model accurately simulated average yield for the four largest mesoregions (clusters of municipalities) in the state of Sa?o Paulo, Brazil, over a period of 16 years, with a yield relative bias of 0.68% to 1.08%. Finally, the simulated annual average sugarcane yield over 31 years for the state of Louisiana (US) had a low relative bias (-2.67%), but exhibited a lower interannual variability than the observed yields.
650 $aBiofuels
650 $aClimate change
650 $aSugarcane
650 $aBiocombustível
650 $aImpacto ambiental
653 $aBiophysical
653 $aCana-de-açúcar
653 $aCiclos biogeoquímicos
653 $aLand surface model
653 $aSugarcane model
700 1 $aCOSTA, M. H.
700 1 $aKUCHARIK, C. J.
700 1 $aROCHA, H. R. da
700 1 $aTATSCH, J. D.
700 1 $aINMAN-BAMBER, G.
700 1 $aROCHA, R. P. da
700 1 $aLEITE, C. C.
700 1 $aCABRAL, O. M. R.
773 $tGlobal Change Biology. Bioenergy$gv. 4, n. 1, p. 36-48, 2012.
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Registro original: |
Embrapa Clima Temperado (CPACT) |
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Registro Completo
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia; Embrapa Soja. |
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Data corrente: |
20/04/2016 |
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Data da última atualização: |
21/07/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
LACERDA, A. F.; SARTO, R. P. del; SILVA, M. S.; VASCONCELOS, E. A. R. de; COELHO, R. R.; SANTOS, V. O. dos; GODOY, C. V.; SEIXAS, C. D. S.; SILVA, M. C. M. da; GROSSI-DE-SA, M. F. |
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Afiliação: |
ARIANE FERREIRA LACERDA, Universidade Federal do Rio Grande do Norte; RAFAEL PERSEGHINI DEL SARTO, Centro Universitário do Distrito Federal; MARILIA SANTOS SILVA, Cenargen; ERICO AUGUSTO ROSAS DE VASCONCELOS; ROBERTA RAMOS COELHO; VANESSA OLINTO DOS SANTOS, Universidade Federal do Rio Grande do Norte; CLAUDIA VIEIRA GODOY, CNPSO; CLAUDINE DINALI SANTOS SEIXAS, CNPSO; MARIA CRISTINA MATTAR DA SILVA, Cenargen; MARIA FATIMA GROSSI DE SA, Cenargen. |
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Título: |
The recombinant pea defensin Drr230a is active against impacting soybean and cotton pathogenic fungi from the genera Fusarium, Colletotrichum and Phakopsora. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
3 Biotech, v. 6, n. 1, p. 59, Feb. 2016. |
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ISSN: |
2190-5738 |
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DOI: |
10.1007/s13205-015-0320-7 |
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Idioma: |
Inglês |
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Conteúdo: |
Plant defensins are antifungal peptides produced by the innate immune system plants developed to circumvent fungal infection. The defensin Drr230a, originally isolated from pea, has been previously shown to be active against various entomopathogenic and phytopathogenic fungi. In the present study, the activity of a yeast-expressed recombinant Drr230a protein (rDrr230a) was tested against impacting soybean and cotton fungi. First, the gene was subcloned into the yeast expression vector pPICZαA and expressed in Pichia pastoris. Resulting rDrr230a exhibited in vitro activity against fungal growth and spore germination of Fusarium tucumaniae, which causes soybean sudden death syndrome, and against Colletotrichum gossypii var. cephalosporioides, which causes cotton ramulosis. The rDrr230a IC50 corresponding to inhibition of fungal growth of F. tucumaniae and C. gossypii var. cephalosporioides was 7.67 and 0.84 µM, respectively, demonstrating moderate activity against F. tucumaniae and high potency against C. gossypii var. cephalosporioides. Additionally, rDrr230a at 25 ng/µl (3.83 µM) resulted in 100 % inhibition of spore germination of both fungi, demonstrating that rDrr230a affects fungal development since spore germination. Moreover, rDrr230a at 3 µg/µl (460.12 µM) inhibited 100 % of in vitro spore germination of the obligatory biotrophic fungus Phakopsora pachyrhizi, which causes Asian soybean rust. Interestingly, rDrr230a substantially decreased the severity of Asian rust, as demonstrated by in planta assay. To our knowledge, this is the first report of a plant defensin active against an obligatory biotrophic phytopathogenic fungus. Results revealed the potential of rDrr230a as a candidate to be used in plant genetic engineering to control relevant cotton and soybean fungal diseases. MenosPlant defensins are antifungal peptides produced by the innate immune system plants developed to circumvent fungal infection. The defensin Drr230a, originally isolated from pea, has been previously shown to be active against various entomopathogenic and phytopathogenic fungi. In the present study, the activity of a yeast-expressed recombinant Drr230a protein (rDrr230a) was tested against impacting soybean and cotton fungi. First, the gene was subcloned into the yeast expression vector pPICZαA and expressed in Pichia pastoris. Resulting rDrr230a exhibited in vitro activity against fungal growth and spore germination of Fusarium tucumaniae, which causes soybean sudden death syndrome, and against Colletotrichum gossypii var. cephalosporioides, which causes cotton ramulosis. The rDrr230a IC50 corresponding to inhibition of fungal growth of F. tucumaniae and C. gossypii var. cephalosporioides was 7.67 and 0.84 µM, respectively, demonstrating moderate activity against F. tucumaniae and high potency against C. gossypii var. cephalosporioides. Additionally, rDrr230a at 25 ng/µl (3.83 µM) resulted in 100 % inhibition of spore germination of both fungi, demonstrating that rDrr230a affects fungal development since spore germination. Moreover, rDrr230a at 3 µg/µl (460.12 µM) inhibited 100 % of in vitro spore germination of the obligatory biotrophic fungus Phakopsora pachyrhizi, which causes Asian soybean rust. Interestingly, rDrr230a substantially decreased the severity of Asian ru... Mostrar Tudo |
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Thesagro: |
Algodão; Doença de planta; Fungo; Soja. |
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Thesaurus NAL: |
Cotton; Fungi; Plant diseases and disorders; Soybeans. |
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Categoria do assunto: |
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F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/142476/1/the-recombinant-pea....pdf
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Marc: |
LEADER 02860naa a2200349 a 4500
001 2043768
005 2017-07-21
008 2016 bl uuuu u00u1 u #d
022 $a2190-5738
024 7 $a10.1007/s13205-015-0320-7$2DOI
100 1 $aLACERDA, A. F.
245 $aThe recombinant pea defensin Drr230a is active against impacting soybean and cotton pathogenic fungi from the genera Fusarium, Colletotrichum and Phakopsora.$h[electronic resource]
260 $c2016
520 $aPlant defensins are antifungal peptides produced by the innate immune system plants developed to circumvent fungal infection. The defensin Drr230a, originally isolated from pea, has been previously shown to be active against various entomopathogenic and phytopathogenic fungi. In the present study, the activity of a yeast-expressed recombinant Drr230a protein (rDrr230a) was tested against impacting soybean and cotton fungi. First, the gene was subcloned into the yeast expression vector pPICZαA and expressed in Pichia pastoris. Resulting rDrr230a exhibited in vitro activity against fungal growth and spore germination of Fusarium tucumaniae, which causes soybean sudden death syndrome, and against Colletotrichum gossypii var. cephalosporioides, which causes cotton ramulosis. The rDrr230a IC50 corresponding to inhibition of fungal growth of F. tucumaniae and C. gossypii var. cephalosporioides was 7.67 and 0.84 µM, respectively, demonstrating moderate activity against F. tucumaniae and high potency against C. gossypii var. cephalosporioides. Additionally, rDrr230a at 25 ng/µl (3.83 µM) resulted in 100 % inhibition of spore germination of both fungi, demonstrating that rDrr230a affects fungal development since spore germination. Moreover, rDrr230a at 3 µg/µl (460.12 µM) inhibited 100 % of in vitro spore germination of the obligatory biotrophic fungus Phakopsora pachyrhizi, which causes Asian soybean rust. Interestingly, rDrr230a substantially decreased the severity of Asian rust, as demonstrated by in planta assay. To our knowledge, this is the first report of a plant defensin active against an obligatory biotrophic phytopathogenic fungus. Results revealed the potential of rDrr230a as a candidate to be used in plant genetic engineering to control relevant cotton and soybean fungal diseases.
650 $aCotton
650 $aFungi
650 $aPlant diseases and disorders
650 $aSoybeans
650 $aAlgodão
650 $aDoença de planta
650 $aFungo
650 $aSoja
700 1 $aSARTO, R. P. del
700 1 $aSILVA, M. S.
700 1 $aVASCONCELOS, E. A. R. de
700 1 $aCOELHO, R. R.
700 1 $aSANTOS, V. O. dos
700 1 $aGODOY, C. V.
700 1 $aSEIXAS, C. D. S.
700 1 $aSILVA, M. C. M. da
700 1 $aGROSSI-DE-SA, M. F.
773 $t3 Biotech$gv. 6, n. 1, p. 59, Feb. 2016.
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