|
|
Registros recuperados : 3 | |
1. | | MESA, E. C.; SCHURT, D. A.; NEGRISOLI, M. M.; BARRAGAN, A. Y. P.; CERESINI, P. C. A etiologia complexa da mela e da queima da folha causada por fungos do gênero Thanatephorus em feijão-caupi, soja e braquiária em Roraima, Brasil. In: CONGRESSO BRASILEIRO DE FITOPATOLOGIA, 46.; REUNIÃO BRASILEIRA DE CONTROLE BIOLÓGICO, 11., 2013, Ouro Preto. Expofito. Ouro Preto: UFV, 2013. Biblioteca(s): Embrapa Roraima. |
| |
3. | | REGES, J. T. de A.; NEGRISOLI, M. M.; DORIGAN, A. F.; CASTROAGUDÍN, V. L.; MACIEL, J. L. N.; CERESINI, P. C. Pyricularia pennisetigena and P. zingibericola from invasive grasses infect signal grass, barley and wheat. Pesquisa Agropecuária Tropical, Goiânia, v. 46, n. 2, p. 206-214, Apr./Jun. 2016. Biblioteca(s): Embrapa Trigo. |
| |
Registros recuperados : 3 | |
|
|
Registro Completo
Biblioteca(s): |
Embrapa Trigo. |
Data corrente: |
09/03/2020 |
Data da última atualização: |
09/03/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
DORIGAN, A. F.; CARVALHO, G.; POLONI, N. M.; NEGRISOLI, M. M.; MACIEL, J. L. N.; CERESINI, P. C. |
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. |
Título: |
Resistance to triazole fungicides in Pyricularia species is associated with invasive plants from wheat fields in BraziL. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Acta Scientiarum, v. 41, e39332, 2019. |
DOI: |
10.4025/actasciagron.v41i1.39332 |
Idioma: |
Inglês |
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 |
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. |
Thesagro: |
Pyricularia Grisea; Triticum Aestivum. |
Thesaurus NAL: |
Blast disease; Tebuconazole; Triazole fungicides. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/211644/1/1807-8621-asagr-41-e39332.pdf
|
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.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Trigo (CNPT) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|