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Registro Completo |
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Biblioteca(s): |
Embrapa Trigo. |
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Data corrente: |
09/03/2020 |
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Data da última atualização: |
09/03/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DORIGAN, A. F.; CARVALHO, G.; POLONI, N. M.; NEGRISOLI, M. M.; MACIEL, J. L. N.; CERESINI, P. C. |
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Afiliação: |
Adriano Francis Dorigan, Universidade Federal de Lavras,Câmpus Universitário, Lavras, Minas Gerais, Brazil.; Giselle de Carvalho, Universidade Estadual Paulista, Campus de Ilha Solteira, Ilha Solteira, São Paulo, Brazil; Nadia Maria Poloni, Universidade Estadual Paulista, Campus de Jaboticabal, Jaboticabal, São Paulo, Brazil; Matheus Mereb Negrisoli, Universidade Estadual Paulista, Campus de Botucatu, Botucatu, São Paulo, Brazil; JOAO LEODATO NUNES MACIEL, CNPT; Paulo Cezar Ceresini, 2Universidade Estadual Paulista, Campus de Ilha Solteira, Ilha Solteira, São Paulo, Brazil. |
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Título: |
Resistance to triazole fungicides in Pyricularia species is associated with invasive plants from wheat fields in BraziL. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Acta Scientiarum, v. 41, e39332, 2019. |
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DOI: |
10.4025/actasciagron.v41i1.39332 |
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Idioma: |
Inglês |
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Conteúdo: |
Triazole fungicides have not been effective for managing the wheat blast disease in Brazil. A broad analysis across six geographicalpopulations of Pyricularia graminis-triticiin central-southern Brazil indicated a high level of resistance to triazole fungicides. Since P.graminis-triticiis also associated with others poaceous species,here, we analyzed whether triazole-resistant isolates of the blast pathogencould be recovered from other poaceous hosts that are invasive of sprayed wheat fields. In addition to P.graminis-tritici (Pygt),we also evaluated the levels of sensitivity of three other grass-associated blast pathogens, which included P. grisea (Pg), P. pennisetigena (Pp), andP. urashimae(Pu).Resistance to the triazole fungicides tebuconazole and epoxiconazole was assessed phenotypically based on EC50 values and molecularly by analysis of the presence of mutations in the CYP51Agene, which encodes for the target enzyme 14-alpha-demethylase. We detected triazole-resistant Pyriculariaspp. (Pg, Pp, Puand Pygt) that is associated with Avenasativa, Cenchrusechinatus, Chlorisdistichophylla, Cynodonsp., Digitaria horizontalis, D. sanguinalis, Panicummaximum or Urochloaspp. The major outcome from our study was the evidence that invasive poaceous species from wheat fields could be an important source of triazole resistant fungal inoculum for the initial phases of the wheat blast epidemics.Keywords:blast disease; CYP51A gene; sterol demethylation inhibitor (DMI) fungicides; epoxiconazole; tebuconazole. MenosTriazole fungicides have not been effective for managing the wheat blast disease in Brazil. A broad analysis across six geographicalpopulations of Pyricularia graminis-triticiin central-southern Brazil indicated a high level of resistance to triazole fungicides. Since P.graminis-triticiis also associated with others poaceous species,here, we analyzed whether triazole-resistant isolates of the blast pathogencould be recovered from other poaceous hosts that are invasive of sprayed wheat fields. In addition to P.graminis-tritici (Pygt),we also evaluated the levels of sensitivity of three other grass-associated blast pathogens, which included P. grisea (Pg), P. pennisetigena (Pp), andP. urashimae(Pu).Resistance to the triazole fungicides tebuconazole and epoxiconazole was assessed phenotypically based on EC50 values and molecularly by analysis of the presence of mutations in the CYP51Agene, which encodes for the target enzyme 14-alpha-demethylase. We detected triazole-resistant Pyriculariaspp. (Pg, Pp, Puand Pygt) that is associated with Avenasativa, Cenchrusechinatus, Chlorisdistichophylla, Cynodonsp., Digitaria horizontalis, D. sanguinalis, Panicummaximum or Urochloaspp. The major outcome from our study was the evidence that invasive poaceous species from wheat fields could be an important source of triazole resistant fungal inoculum for the initial phases of the wheat blast epidemics.Keywords:blast disease; CYP51A gene; sterol demethylation inhibitor (DMI) fungicides; epoxico... Mostrar Tudo |
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Palavras-Chave: |
Blast pathogens; CYP51A gene; Epoxiconazole; P Graminis-tritici; Pyricularia graminis-tritici (Pygt); Pyricularia grisea (Pg); Pyricularia oryzae(Po); Pyricularia pennisetigena (Pp); Pyricularia species; Pyricularia urashimae (Pu); Sterol demethylation inhibitor (DMI) fungicides. |
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Thesagro: |
Pyricularia Grisea; Triticum Aestivum. |
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Thesaurus Nal: |
Blast disease; Tebuconazole; Triazole fungicides. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/211644/1/1807-8621-asagr-41-e39332.pdf
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Marc: |
LEADER 02747naa a2200385 a 4500
001 2121059
005 2020-03-09
008 2019 bl uuuu u00u1 u #d
024 7 $a10.4025/actasciagron.v41i1.39332$2DOI
100 1 $aDORIGAN, A. F.
245 $aResistance to triazole fungicides in Pyricularia species is associated with invasive plants from wheat fields in BraziL.$h[electronic resource]
260 $c2019
520 $aTriazole fungicides have not been effective for managing the wheat blast disease in Brazil. A broad analysis across six geographicalpopulations of Pyricularia graminis-triticiin central-southern Brazil indicated a high level of resistance to triazole fungicides. Since P.graminis-triticiis also associated with others poaceous species,here, we analyzed whether triazole-resistant isolates of the blast pathogencould be recovered from other poaceous hosts that are invasive of sprayed wheat fields. In addition to P.graminis-tritici (Pygt),we also evaluated the levels of sensitivity of three other grass-associated blast pathogens, which included P. grisea (Pg), P. pennisetigena (Pp), andP. urashimae(Pu).Resistance to the triazole fungicides tebuconazole and epoxiconazole was assessed phenotypically based on EC50 values and molecularly by analysis of the presence of mutations in the CYP51Agene, which encodes for the target enzyme 14-alpha-demethylase. We detected triazole-resistant Pyriculariaspp. (Pg, Pp, Puand Pygt) that is associated with Avenasativa, Cenchrusechinatus, Chlorisdistichophylla, Cynodonsp., Digitaria horizontalis, D. sanguinalis, Panicummaximum or Urochloaspp. The major outcome from our study was the evidence that invasive poaceous species from wheat fields could be an important source of triazole resistant fungal inoculum for the initial phases of the wheat blast epidemics.Keywords:blast disease; CYP51A gene; sterol demethylation inhibitor (DMI) fungicides; epoxiconazole; tebuconazole.
650 $aBlast disease
650 $aTebuconazole
650 $aTriazole fungicides
650 $aPyricularia Grisea
650 $aTriticum Aestivum
653 $aBlast pathogens
653 $aCYP51A gene
653 $aEpoxiconazole
653 $aP Graminis-tritici
653 $aPyricularia graminis-tritici (Pygt)
653 $aPyricularia grisea (Pg)
653 $aPyricularia oryzae(Po)
653 $aPyricularia pennisetigena (Pp)
653 $aPyricularia species
653 $aPyricularia urashimae (Pu)
653 $aSterol demethylation inhibitor (DMI) fungicides
700 1 $aCARVALHO, G.
700 1 $aPOLONI, N. M.
700 1 $aNEGRISOLI, M. M.
700 1 $aMACIEL, J. L. N.
700 1 $aCERESINI, P. C.
773 $tActa Scientiarum$gv. 41, e39332, 2019.
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Registro original: |
Embrapa Trigo (CNPT) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas; Embrapa Gado de Corte. |
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Data corrente: |
23/11/2017 |
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Data da última atualização: |
19/03/2019 |
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Tipo da produção científica: |
Documentos |
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Autoria: |
ALVES, F. V.; ALMEIDA, R. G. de; LAURA, V. A. (ed.). |
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Afiliação: |
FABIANA VILLA ALVES, CNPGC; ROBERTO GIOLO DE ALMEIDA, CNPGC; VALDEMIR ANTONIO LAURA, CNPGC. |
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Título: |
Carbon Neutral Brazilian Beef: A New Concept for Sustainable Beef Production in the Tropics. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Brasília, DF: Embrapa, 2017. |
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Páginas: |
36 p. |
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Série: |
(Embrapa Gado de Corte. Documentos, 243). |
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ISSN: |
ISSN 1983-974X |
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Idioma: |
Inglês |
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Conteúdo: |
Agriculture in Brazil, as well as worldwide, has been striving to meet the increasing demand for food, timber, fibers and bioenergy. While larger production is necessary, restrictions for expansion over natural environments increase. For the Brazilian beef industry, the current trend is towards little increase on herd numbers, despite reduction on grazing areas. This will lead to intensification of sown pastures, optimizing use of inputs, along with improved management, feeding and introduction of technologies like integrated systems. There is also a growing concern from the sector towards environmental preservation and the need for a more efficient use of inputs and natural resources if future demands are to be met. Therefore, agriculture will have to play its role on sustainability, resulting in socio-economic and environmental benefits. Such expectations, especially from the international community, offer additional opportunity for the Brazilian beef chain. To add value on ex- ports, some aspects must be addressed. For instance, animal welfare, water and soil conservation, while mitigating greenhouse gases emissions (GHG). The last one through carbon sequestration can become an environmental service provided by grazing areas. Today, Brazil is able to supply such services through production systems that include a forestry component integrated to cattle ranching. For instance, Brazilian Government created in 2010 the Plano ABC (Agricultura de Baixa Emissão de Carbono), a low carbon emissions agriculture plan, stimulating
implementation of integrated crop-livestock-forest systems (ICLF) as one of the strategies to mitigate GHG emissions from agriculture. The official plan ensures credit for projects adopting this technology (BRASIL, 2012).
For almost three decades, Embrapa develops integrated systems for different biomes together with universities, other research institutions and the private sector. Aim is to reclaim, diversify and improve pastures management. Considering the importance of carbon fixed in such systems, the need for a brand or a trademark associated with the concept of these systems emerged, ensuring a distinct product that incorporates some of the mentioned parameters, especially related to mitigation/neutralization of GHG emissions and environmental sustainability. MenosAgriculture in Brazil, as well as worldwide, has been striving to meet the increasing demand for food, timber, fibers and bioenergy. While larger production is necessary, restrictions for expansion over natural environments increase. For the Brazilian beef industry, the current trend is towards little increase on herd numbers, despite reduction on grazing areas. This will lead to intensification of sown pastures, optimizing use of inputs, along with improved management, feeding and introduction of technologies like integrated systems. There is also a growing concern from the sector towards environmental preservation and the need for a more efficient use of inputs and natural resources if future demands are to be met. Therefore, agriculture will have to play its role on sustainability, resulting in socio-economic and environmental benefits. Such expectations, especially from the international community, offer additional opportunity for the Brazilian beef chain. To add value on ex- ports, some aspects must be addressed. For instance, animal welfare, water and soil conservation, while mitigating greenhouse gases emissions (GHG). The last one through carbon sequestration can become an environmental service provided by grazing areas. Today, Brazil is able to supply such services through production systems that include a forestry component integrated to cattle ranching. For instance, Brazilian Government created in 2010 the Plano ABC (Agricultura de Baixa Emissão de Carbono), a l... Mostrar Tudo |
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Palavras-Chave: |
Greenhouse gases emissions; Sustainable beef production. |
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Thesaurus NAL: |
Bioenergy. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/167390/1/Carbon-neutral-brazilian-beef.pdf
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Marc: |
LEADER 02957nam a2200205 a 4500
001 2080610
005 2019-03-19
008 2017 bl uuuu u0uu1 u #d
022 $aISSN 1983-974X
100 1 $aALVES, F. V.
245 $aCarbon Neutral Brazilian Beef$bA New Concept for Sustainable Beef Production in the Tropics.$h[electronic resource]
260 $aBrasília, DF: Embrapa$c2017
300 $a36 p.
490 $a(Embrapa Gado de Corte. Documentos, 243).
520 $aAgriculture in Brazil, as well as worldwide, has been striving to meet the increasing demand for food, timber, fibers and bioenergy. While larger production is necessary, restrictions for expansion over natural environments increase. For the Brazilian beef industry, the current trend is towards little increase on herd numbers, despite reduction on grazing areas. This will lead to intensification of sown pastures, optimizing use of inputs, along with improved management, feeding and introduction of technologies like integrated systems. There is also a growing concern from the sector towards environmental preservation and the need for a more efficient use of inputs and natural resources if future demands are to be met. Therefore, agriculture will have to play its role on sustainability, resulting in socio-economic and environmental benefits. Such expectations, especially from the international community, offer additional opportunity for the Brazilian beef chain. To add value on ex- ports, some aspects must be addressed. For instance, animal welfare, water and soil conservation, while mitigating greenhouse gases emissions (GHG). The last one through carbon sequestration can become an environmental service provided by grazing areas. Today, Brazil is able to supply such services through production systems that include a forestry component integrated to cattle ranching. For instance, Brazilian Government created in 2010 the Plano ABC (Agricultura de Baixa Emissão de Carbono), a low carbon emissions agriculture plan, stimulating implementation of integrated crop-livestock-forest systems (ICLF) as one of the strategies to mitigate GHG emissions from agriculture. The official plan ensures credit for projects adopting this technology (BRASIL, 2012). For almost three decades, Embrapa develops integrated systems for different biomes together with universities, other research institutions and the private sector. Aim is to reclaim, diversify and improve pastures management. Considering the importance of carbon fixed in such systems, the need for a brand or a trademark associated with the concept of these systems emerged, ensuring a distinct product that incorporates some of the mentioned parameters, especially related to mitigation/neutralization of GHG emissions and environmental sustainability.
650 $aBioenergy
653 $aGreenhouse gases emissions
653 $aSustainable beef production
700 1 $aALMEIDA, R. G. de
700 1 $aLAURA, V. A.
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Embrapa Gado de Corte (CNPGC) |
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