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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
25/10/2017 |
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Data da última atualização: |
28/03/2018 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
TEIXEIRA, L. A. J.; SILVA, F. R. da; MARQUES, E.; VIEIRA, H. B.; MORAES, W.; RODRIGUEZ, M. A. D. |
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Afiliação: |
L. A. J. TEIXEIRA, IAC; F. R. da SILVA, IAC; E. MARQUES, CATI São Bento do Sapucaí; HENRIQUE BARROS VIEIRA, CNPMA; W. MORAES, APTA São Paulo; MIGUEL ANGEL DITA RODRIGUEZ, CNPMF. |
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Título: |
Physical properties as soil health indicators for fusarium wilt of bananas. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Fitosanidad, Havana, v. 21, n. especial, 2017. Edição dos resumos do VIII Seminario Científico Internacional de Sanidad Vegetal, Havana, 2017. Por la transición de la agricultura cubana hacia la sostenibilidad. Ref. Foc-11. p. 29. |
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Idioma: |
Português |
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Conteúdo: |
Fusarium wilt (FW) of banana, caused by Fusarium oxysporum f. sp. cubense (FOC), is a major constraint for banana production in Brazil. Edaphic conditions may act as driving factor of FW intensity and may even result on soil suppressiveness. However, the complex environment of soils and the specificity of physical, chemical and biological interactions, requires integrated approaches to better understand suppressive and conductive soils. Therefore, developing management practices based on soil health are extremely dependent high quality site-specific information of soil and the production systems. This work is part of a set of research actions to identify soil health indicators in banana plantations affected by FW in São Paulo. A survey was carried out in three representative regions of different production systems at Vale do Ribeira, São Bento do Sapucaí and Penápolis. In each region, areas with high (FOC+) and low (FOC-) incidence of FW were selected. Soil density, porosity (total porosity, macro and micropores), penetration resistance (field and laboratory), moisture and texture were evaluated. There were no significant differences on soil texture when FOC+ and FOC- areas were compared in all regions. Soil porosity was also similar in the FOC+ and FOC- areas, as well as the resistance to penetration measured in the field. However, soil density and resistance to penetration assessed at laboratory were significantly lower in FOC- areas. The potential of these traits to be part of a set of soil health indicators for FW in banana is further discussed. MenosFusarium wilt (FW) of banana, caused by Fusarium oxysporum f. sp. cubense (FOC), is a major constraint for banana production in Brazil. Edaphic conditions may act as driving factor of FW intensity and may even result on soil suppressiveness. However, the complex environment of soils and the specificity of physical, chemical and biological interactions, requires integrated approaches to better understand suppressive and conductive soils. Therefore, developing management practices based on soil health are extremely dependent high quality site-specific information of soil and the production systems. This work is part of a set of research actions to identify soil health indicators in banana plantations affected by FW in São Paulo. A survey was carried out in three representative regions of different production systems at Vale do Ribeira, São Bento do Sapucaí and Penápolis. In each region, areas with high (FOC+) and low (FOC-) incidence of FW were selected. Soil density, porosity (total porosity, macro and micropores), penetration resistance (field and laboratory), moisture and texture were evaluated. There were no significant differences on soil texture when FOC+ and FOC- areas were compared in all regions. Soil porosity was also similar in the FOC+ and FOC- areas, as well as the resistance to penetration measured in the field. However, soil density and resistance to penetration assessed at laboratory were significantly lower in FOC- areas. The potential of these traits to be pa... Mostrar Tudo |
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Palavras-Chave: |
Fusarium oxysporum f sp Cubense; Panama disease. |
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Thesaurus Nal: |
Epidemiology. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/165515/1/RA-VieiraHB-et-al-INISAV2017-Physical...-p29-Foc-11.pdf
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Marc: |
LEADER 02386nam a2200205 a 4500
001 2078107
005 2018-03-28
008 2017 bl uuuu u00u1 u #d
100 1 $aTEIXEIRA, L. A. J.
245 $aPhysical properties as soil health indicators for fusarium wilt of bananas.$h[electronic resource]
260 $aFitosanidad, Havana, v. 21, n. especial, 2017. Edição dos resumos do VIII Seminario Científico Internacional de Sanidad Vegetal, Havana, 2017. Por la transición de la agricultura cubana hacia la sostenibilidad. Ref. Foc-11. p. 29.$c2017
520 $aFusarium wilt (FW) of banana, caused by Fusarium oxysporum f. sp. cubense (FOC), is a major constraint for banana production in Brazil. Edaphic conditions may act as driving factor of FW intensity and may even result on soil suppressiveness. However, the complex environment of soils and the specificity of physical, chemical and biological interactions, requires integrated approaches to better understand suppressive and conductive soils. Therefore, developing management practices based on soil health are extremely dependent high quality site-specific information of soil and the production systems. This work is part of a set of research actions to identify soil health indicators in banana plantations affected by FW in São Paulo. A survey was carried out in three representative regions of different production systems at Vale do Ribeira, São Bento do Sapucaí and Penápolis. In each region, areas with high (FOC+) and low (FOC-) incidence of FW were selected. Soil density, porosity (total porosity, macro and micropores), penetration resistance (field and laboratory), moisture and texture were evaluated. There were no significant differences on soil texture when FOC+ and FOC- areas were compared in all regions. Soil porosity was also similar in the FOC+ and FOC- areas, as well as the resistance to penetration measured in the field. However, soil density and resistance to penetration assessed at laboratory were significantly lower in FOC- areas. The potential of these traits to be part of a set of soil health indicators for FW in banana is further discussed.
650 $aEpidemiology
653 $aFusarium oxysporum f sp Cubense
653 $aPanama disease
700 1 $aSILVA, F. R. da
700 1 $aMARQUES, E.
700 1 $aVIEIRA, H. B.
700 1 $aMORAES, W.
700 1 $aRODRIGUEZ, M. A. D.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Cutter |
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Registro Completo
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Biblioteca(s): |
Embrapa Agroenergia. |
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Data corrente: |
21/06/2019 |
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Data da última atualização: |
18/11/2019 |
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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: |
SOUZA, W. R. de; PACHECO, T. F.; DUARTE, K. E.; SAMPAIO, B. L.; OLIVEIRA, P. A. de; MARTINS, P. M.; SANTIAGO, T. R.; FORMIGHIERI, E. F.; VINECKY, F.; RIBEIRO, A. P.; DIAS, B. B. A.; KOBAYASHI, A. K.; MITCHELL, R. A. C.; RODRIGUES, D. de S.; MOLINARI, H. B. C. |
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Afiliação: |
Wagner Rodrigo de Souza, Bolsista da Embrapa Agroenergia; THALYTA FRAGA PACHECO, CNPAE; Karoline Estefani Duarte, Bolsista da Embrapa Agroenergia; Bruno Leite Sampaio, Bolsista da Embrapa Agroenergia; PATRICIA ABRAO DE OLIVEIRA MOLINARI, CNPAE; Polyana Kelly Martins, Bolsista da Embrapa Agroenergia; Thaís Ribeiro Santiago, Bolsista da Embrapa Agroenergia; EDUARDO FERNANDES FORMIGHIERI, CNPAE; Felipe Vinecky; Ana Paula Ribeiro; BARBARA ANDRADE DIAS BRITO DA CUNHA, CNPAE; ADILSON KENJI KOBAYASHI, CNPAE; Rowan Andrew Craig Mitchell; DASCIANA DE SOUSA RODRIGUES, CNPAE; HUGO BRUNO CORREA MOLINARI, CNPAE. |
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Título: |
Silencing of a BAHD acyltransferase in sugarcane increases biomass digestibility. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Biotechnology for Biofuels, v. 12, n. 111, p. 1-14, 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
Background: Sugarcane (Saccharum spp.) covers vast areas of land (around 25 million ha worldwide), and its processing is already linked into infrastructure for producing bioethanol in many countries. This makes it an ideal candidate for improving composition of its residues (mostly cell walls), making them more suitable for cellulosic ethanol production. In this paper, we report an approach to improving saccharification of sugarcane straw by RNAi silencing of the recently discovered BAHD01 gene responsible for feruloylation of grass cell walls. Results: We identified six BAHD genes in the sugarcane genome (SacBAHDs) and generated five lines with substantially decreased SacBAHD01 expression. To find optimal conditions for determining saccharification of sugarcane straw, we tried multiple combinations of solvent and temperature pretreatment conditions, devising a predictive model for finding their effects on glucose release. Under optimal conditions, demonstrated by Organosolv pretreatment using 30% ethanol for 240 min, transgenic lines showed increases in saccharification efficiency of up to 24%. The three lines with improved saccharification efficiency had lower cell-wall ferulate content but unchanged monosaccharide and lignin compositions. Conclusions: The silencing of SacBAHD01 gene and subsequent decrease of cell-wall ferulate contents indicate a promising novel biotechnological approach for improving the suitability of sugarcane residues for cellulosic ethanol production. In addition, the Organosolv pretreatment of the genetically modified biomass and the optimal conditions for the enzymatic hydrolysis presented here might be incorporated in the sugarcane industry for bioethanol production. Keywords: Sugarcane, MenosBackground: Sugarcane (Saccharum spp.) covers vast areas of land (around 25 million ha worldwide), and its processing is already linked into infrastructure for producing bioethanol in many countries. This makes it an ideal candidate for improving composition of its residues (mostly cell walls), making them more suitable for cellulosic ethanol production. In this paper, we report an approach to improving saccharification of sugarcane straw by RNAi silencing of the recently discovered BAHD01 gene responsible for feruloylation of grass cell walls. Results: We identified six BAHD genes in the sugarcane genome (SacBAHDs) and generated five lines with substantially decreased SacBAHD01 expression. To find optimal conditions for determining saccharification of sugarcane straw, we tried multiple combinations of solvent and temperature pretreatment conditions, devising a predictive model for finding their effects on glucose release. Under optimal conditions, demonstrated by Organosolv pretreatment using 30% ethanol for 240 min, transgenic lines showed increases in saccharification efficiency of up to 24%. The three lines with improved saccharification efficiency had lower cell-wall ferulate content but unchanged monosaccharide and lignin compositions. Conclusions: The silencing of SacBAHD01 gene and subsequent decrease of cell-wall ferulate contents indicate a promising novel biotechnological approach for improving the suitability of sugarcane residues for cellulosic ethanol productio... Mostrar Tudo |
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Palavras-Chave: |
Cell-wall acylation; Lignocellulosic feedstock. |
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Thesaurus NAL: |
Biofuels; Biomass; Sugarcane. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/198722/1/Silencing-of-a-BAHD-acyltransferase.pdf
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Marc: |
LEADER 02739naa a2200349 a 4500
001 2109978
005 2019-11-18
008 2019 bl uuuu u00u1 u #d
100 1 $aSOUZA, W. R. de
245 $aSilencing of a BAHD acyltransferase in sugarcane increases biomass digestibility.$h[electronic resource]
260 $c2019
520 $aBackground: Sugarcane (Saccharum spp.) covers vast areas of land (around 25 million ha worldwide), and its processing is already linked into infrastructure for producing bioethanol in many countries. This makes it an ideal candidate for improving composition of its residues (mostly cell walls), making them more suitable for cellulosic ethanol production. In this paper, we report an approach to improving saccharification of sugarcane straw by RNAi silencing of the recently discovered BAHD01 gene responsible for feruloylation of grass cell walls. Results: We identified six BAHD genes in the sugarcane genome (SacBAHDs) and generated five lines with substantially decreased SacBAHD01 expression. To find optimal conditions for determining saccharification of sugarcane straw, we tried multiple combinations of solvent and temperature pretreatment conditions, devising a predictive model for finding their effects on glucose release. Under optimal conditions, demonstrated by Organosolv pretreatment using 30% ethanol for 240 min, transgenic lines showed increases in saccharification efficiency of up to 24%. The three lines with improved saccharification efficiency had lower cell-wall ferulate content but unchanged monosaccharide and lignin compositions. Conclusions: The silencing of SacBAHD01 gene and subsequent decrease of cell-wall ferulate contents indicate a promising novel biotechnological approach for improving the suitability of sugarcane residues for cellulosic ethanol production. In addition, the Organosolv pretreatment of the genetically modified biomass and the optimal conditions for the enzymatic hydrolysis presented here might be incorporated in the sugarcane industry for bioethanol production. Keywords: Sugarcane,
650 $aBiofuels
650 $aBiomass
650 $aSugarcane
653 $aCell-wall acylation
653 $aLignocellulosic feedstock
700 1 $aPACHECO, T. F.
700 1 $aDUARTE, K. E.
700 1 $aSAMPAIO, B. L.
700 1 $aOLIVEIRA, P. A. de
700 1 $aMARTINS, P. M.
700 1 $aSANTIAGO, T. R.
700 1 $aFORMIGHIERI, E. F.
700 1 $aVINECKY, F.
700 1 $aRIBEIRO, A. P.
700 1 $aDIAS, B. B. A.
700 1 $aKOBAYASHI, A. K.
700 1 $aMITCHELL, R. A. C.
700 1 $aRODRIGUES, D. de S.
700 1 $aMOLINARI, H. B. C.
773 $tBiotechnology for Biofuels$gv. 12, n. 111, p. 1-14, 2019.
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Embrapa Agroenergia (CNPAE) |
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