|
|
Registro Completo |
Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
13/10/2010 |
Data da última atualização: |
30/04/2018 |
Autoria: |
MIRANDA, B. E. C. de; SUASSUNA, N. D.; REIS, A. |
Afiliação: |
Bruno Eduardo Cardozo de Miranda, Universidade de Brasília; NELSON DIAS SUASSUNA, CNPA; AILTON REIS, CNPH. |
Título: |
Mating type, mefenoxam sensitivity, and pathotype diversity in Phytophthora infestans isolates from tomato in Brazil. |
Ano de publicação: |
2010 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 45, n. 7, p. 671-679, jul. 2010 |
Idioma: |
Inglês |
Notas: |
Título em português: Grupo de compatibilidade, sensibilidade ao mefenoxam e diversidade de patótipos de isolados de Phytophthora infestans de tomate no Brasil. |
Conteúdo: |
The objective of this work was to characterize 79 Phytophthora infestans isolates collected in tomato (Solanum lycopersicum) fields, as to mating type, mefenoxam sensitivity, and pathotype composition. The isolates were sampled in 2006 and 2007 in seven Brazilian states as well as in the Distrito Federal. They were characterised as to mating type (n=79), sensitivity to fungicide mefenoxam (n=79), and virulence to three major resistance genes Ph-1, Ph-2, and Ph-3/Ph-4 (n=62). All isolates were of the mating type A1. Resistant isolates were detected in all sampled states, and its average frequency was superior to 50%. No difference was detected in pathotype diversity, neither between subpopulations collected in 2006 and 2007 nor between isolates grouped as resistant or intermediately sensitive to mefenoxam. All major resistance genes were overcome at different frequencies: Ph-1, 88.7%; Ph-2, 64.5%; and Ph-3/Ph-4, 25.8%. Isolates with virulence genes able to overcome all major resistance genes were detected at low frequencies. Tomato breeding programs in Brazil must avoid the development of cultivars with resistance based exclusively on major genes. |
Palavras-Chave: |
Disease management; Late blight; Pathogen variability; Solanum lycopersicum var lycopersicum. |
Thesagro: |
Lycopersicon Esculentum; Requeima. |
Thesaurus Nal: |
Disease control; Solanum lycopersicum. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/105842/1/Mating-type.pdf
|
Marc: |
LEADER 02120naa a2200253 a 4500 001 1864123 005 2018-04-30 008 2010 bl uuuu u00u1 u #d 100 1 $aMIRANDA, B. E. C. de 245 $aMating type, mefenoxam sensitivity, and pathotype diversity in Phytophthora infestans isolates from tomato in Brazil. 260 $c2010 500 $aTítulo em português: Grupo de compatibilidade, sensibilidade ao mefenoxam e diversidade de patótipos de isolados de Phytophthora infestans de tomate no Brasil. 520 $aThe objective of this work was to characterize 79 Phytophthora infestans isolates collected in tomato (Solanum lycopersicum) fields, as to mating type, mefenoxam sensitivity, and pathotype composition. The isolates were sampled in 2006 and 2007 in seven Brazilian states as well as in the Distrito Federal. They were characterised as to mating type (n=79), sensitivity to fungicide mefenoxam (n=79), and virulence to three major resistance genes Ph-1, Ph-2, and Ph-3/Ph-4 (n=62). All isolates were of the mating type A1. Resistant isolates were detected in all sampled states, and its average frequency was superior to 50%. No difference was detected in pathotype diversity, neither between subpopulations collected in 2006 and 2007 nor between isolates grouped as resistant or intermediately sensitive to mefenoxam. All major resistance genes were overcome at different frequencies: Ph-1, 88.7%; Ph-2, 64.5%; and Ph-3/Ph-4, 25.8%. Isolates with virulence genes able to overcome all major resistance genes were detected at low frequencies. Tomato breeding programs in Brazil must avoid the development of cultivars with resistance based exclusively on major genes. 650 $aDisease control 650 $aSolanum lycopersicum 650 $aLycopersicon Esculentum 650 $aRequeima 653 $aDisease management 653 $aLate blight 653 $aPathogen variability 653 $aSolanum lycopersicum var lycopersicum 700 1 $aSUASSUNA, N. D. 700 1 $aREIS, A. 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 45, n. 7, p. 671-679, jul. 2010
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registro Completo
Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
Data corrente: |
26/05/2011 |
Data da última atualização: |
26/05/2011 |
Tipo da produção científica: |
Resumo em Anais de Congresso |
Autoria: |
FREITAS-SILVA, O.; SOUZA, M. de L. M.; VENÂNCIO, A. |
Afiliação: |
OTNIEL FREITAS SILVA, CTAA; MARIA DE LOURDES MENDES DE SOUZA, CTAA; ARMANDO VENÂNCIO, UNIVERSIDADE DO MINHO, PORTUGAL. |
Título: |
A multi-compound LC-MS/MS method for the screening of fungi secondary metabolites in Brazil nuts. |
Ano de publicação: |
2011 |
Fonte/Imprenta: |
In: INTERNATIONAL CIGR WORKSHOP ON FOOD SAFETY, 1., 2011, Dijon. Advances and trends: book of abstracts. Dijon: AgroSup Dijon, 2011. p. 72. |
Idioma: |
Inglês |
Thesagro: |
Aflatoxina; Bertholletia excelsa; Castanha do Pará; Fungo; Micotoxina. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/35488/1/2011-003.pdf
|
Marc: |
LEADER 00644nam a2200181 a 4500 001 1889784 005 2011-05-26 008 2011 bl uuuu u00u1 u #d 100 1 $aFREITAS-SILVA, O. 245 $aA multi-compound LC-MS/MS method for the screening of fungi secondary metabolites in Brazil nuts. 260 $aIn: INTERNATIONAL CIGR WORKSHOP ON FOOD SAFETY, 1., 2011, Dijon. Advances and trends: book of abstracts. Dijon: AgroSup Dijon, 2011. p. 72.$c2011 650 $aAflatoxina 650 $aBertholletia excelsa 650 $aCastanha do Pará 650 $aFungo 650 $aMicotoxina 700 1 $aSOUZA, M. de L. M. 700 1 $aVENÂNCIO, A.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Agroindústria de Alimentos (CTAA) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|