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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
24/04/2007 |
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Data da última atualização: |
28/03/2024 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
ARAÚJO, L. G.; PRABHU, A. S.; FREIRE, A. B. |
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Afiliação: |
LEILA GARCES ARAUJO; ANNE SITARAMA PRABHU, CNPAF; ADELSON DE BARROS FREIRE, CNPAF. |
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Título: |
Somaclones da cultivar de arroz IAC-47 aromáticos e com resistência à brusone. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Fitopatologia Brasileira, v. 22, p. 244, ago. 1997. Suplemento, ref. 69. Edição de Resumos do XXX Congresso Brasileiro de Fitopatologia, Poços de Caldas, MG, ago. 1997. |
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Idioma: |
Português |
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Conteúdo: |
A cultivar IAC-47 apresenta um alto grau de resistência à seca e bem adaptada às condições de cerrado mas altamente suscetível à brusone causada por Pyricularia grisea. Foram feitas investigações objetivando obtenção de somaclones com resistência à brusone e com características agronômicas desejáveis. A metodologia consistiu na indução de calos a partir de panículas imaturas da cultivar IAC-47; regeneração de plantas no meio de cultura MS modificado; avaliação e seleção de plantas resistentes da população R2 e linhas R3, R4, R5 e R6. |
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Palavras-Chave: |
Cultivar IAC-47; Resistência a doenças. |
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Thesagro: |
Arroz; Brusone; Cerrado; Doença de Planta; Oryza Sativa; Pyricularia Grisea; Pyricularia Oryzae. |
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Thesaurus Nal: |
disease resistance; rice. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/214840/1/fb-1997-.pdf
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Marc: |
LEADER 01442nam a2200265 a 4500
001 1214840
005 2024-03-28
008 1997 bl uuuu u00u1 u #d
100 1 $aARAÚJO, L. G.
245 $aSomaclones da cultivar de arroz IAC-47 aromáticos e com resistência à brusone.$h[electronic resource]
260 $aFitopatologia Brasileira, v. 22, p. 244, ago. 1997. Suplemento, ref. 69. Edição de Resumos do XXX Congresso Brasileiro de Fitopatologia, Poços de Caldas, MG, ago. 1997.$c1997
520 $aA cultivar IAC-47 apresenta um alto grau de resistência à seca e bem adaptada às condições de cerrado mas altamente suscetível à brusone causada por Pyricularia grisea. Foram feitas investigações objetivando obtenção de somaclones com resistência à brusone e com características agronômicas desejáveis. A metodologia consistiu na indução de calos a partir de panículas imaturas da cultivar IAC-47; regeneração de plantas no meio de cultura MS modificado; avaliação e seleção de plantas resistentes da população R2 e linhas R3, R4, R5 e R6.
650 $adisease resistance
650 $arice
650 $aArroz
650 $aBrusone
650 $aCerrado
650 $aDoença de Planta
650 $aOryza Sativa
650 $aPyricularia Grisea
650 $aPyricularia Oryzae
653 $aCultivar IAC-47
653 $aResistência a doenças
700 1 $aPRABHU, A. S.
700 1 $aFREIRE, A. B.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
02/05/2016 |
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Data da última atualização: |
29/12/2017 |
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Autoria: |
SATO, J. P. H.; TAKEUTI, K. L.; ANDRADE, M. R.; KOERICH, P. K. V.; TAGLIARI, V.; BERNARDI, M. L.; CARDOSO, M. R. I.; BARCELLOS, D. E. S. N. |
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Afiliação: |
JOSÉ PAULO H. SATO, UFRGS; KARINE L. TAKEUTI, UFRGS; MARIANA R. ANDRADE, UFRGS; PRISCILLA K. V. KOERICH, BRF - Brasil Foods; VINICIUS TAGLIARI, BRF- Brasil Foods; MARI L. BERNARDI, UFRGS; MARISA R. I. CARDOSO, UFRGS; DAVID E. S. N. BARCELLOS, UFRGS. |
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Título: |
Virulence profiles of enterotoxigenic Escherichia coli isolated from piglets with post-weaning diarrhea and classification according to fecal consistency. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 36, n. 4, p. 253-257, abr. 2016. |
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Idioma: |
Inglês |
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Conteúdo: |
The aim of this study was to assess the frequency and association of virulence factors of Escherichia (E.) coli isolated from weaned piglets with diarrhea and to correlate it with fecal consistency. A total of 152 rectal swabs were collected from 25-40 day-old piglets with diarrhea, in farms of Southern Brazil. Phenotypical and molecular techniques were used for bacterial isolation, characterization and classification of enterotoxigenic E. coli (ETEC) pathotypes. Statistical analysis was carried out to determine the frequency of virulence factors and virotypes, of fimbriae F4, F5, F6, F18, F41 and toxins LT, STa, STb and STx2e. Out of 456 E. coli isolates, 287 (62.9%) samples showed significant growth of E. coli. Among them, 194 (67.6%) samples showed at least one virulence factor, indicating that ETEC is an important etiological agent of diarrhea in weaned piglets. Higher frequencies were found of fimbria F4 and F18 and enterotoxins LT, STa and STb. Significant association was found to F4, LT, STa and STb; between F18 and STa and STx2e; between F5 and LT, STa and STb. The most frequent virotypes were F18-STa, F4-LT-STa-STb, F4-STa, F4-LT-STb and F18-STa-STx2e. Beta-hemolysis was observed in 47.4% of samples and there was significant association between hemolytic samples and virulence factors F4, F18, STa and STx2e. Regarding fecal consistency, there was significant association of liquid feces and F4 fimbria, STa toxin and virotypes F4-STa and F4-F5-LT-STa-STb. Since there was significant association of ETEC and liquid feces in nursery piglets, it is important to prioritize the sampling of liquid feces for the diagnosis etiologic cause of diarrhea. MenosThe aim of this study was to assess the frequency and association of virulence factors of Escherichia (E.) coli isolated from weaned piglets with diarrhea and to correlate it with fecal consistency. A total of 152 rectal swabs were collected from 25-40 day-old piglets with diarrhea, in farms of Southern Brazil. Phenotypical and molecular techniques were used for bacterial isolation, characterization and classification of enterotoxigenic E. coli (ETEC) pathotypes. Statistical analysis was carried out to determine the frequency of virulence factors and virotypes, of fimbriae F4, F5, F6, F18, F41 and toxins LT, STa, STb and STx2e. Out of 456 E. coli isolates, 287 (62.9%) samples showed significant growth of E. coli. Among them, 194 (67.6%) samples showed at least one virulence factor, indicating that ETEC is an important etiological agent of diarrhea in weaned piglets. Higher frequencies were found of fimbria F4 and F18 and enterotoxins LT, STa and STb. Significant association was found to F4, LT, STa and STb; between F18 and STa and STx2e; between F5 and LT, STa and STb. The most frequent virotypes were F18-STa, F4-LT-STa-STb, F4-STa, F4-LT-STb and F18-STa-STx2e. Beta-hemolysis was observed in 47.4% of samples and there was significant association between hemolytic samples and virulence factors F4, F18, STa and STx2e. Regarding fecal consistency, there was significant association of liquid feces and F4 fimbria, STa toxin and virotypes F4-STa and F4-F5-LT-STa-STb. Since there w... Mostrar Tudo |
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Palavras-Chave: |
Consistência fecal; Enterotoxigênica; Fatores de virulência; Fecal consistency; Virulence factors. |
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Thesagro: |
Diarreia; Escherichia Coli; Suíno. |
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Thesaurus NAL: |
Diarrhea; Enterotoxigenic Escherichia coli; Piglets; Swine. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/142679/1/Virulence-profiles.pdf
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Marc: |
LEADER 02748naa a2200349 a 4500
001 2044270
005 2017-12-29
008 2016 bl uuuu u00u1 u #d
100 1 $aSATO, J. P. H.
245 $aVirulence profiles of enterotoxigenic Escherichia coli isolated from piglets with post-weaning diarrhea and classification according to fecal consistency.
260 $c2016
520 $aThe aim of this study was to assess the frequency and association of virulence factors of Escherichia (E.) coli isolated from weaned piglets with diarrhea and to correlate it with fecal consistency. A total of 152 rectal swabs were collected from 25-40 day-old piglets with diarrhea, in farms of Southern Brazil. Phenotypical and molecular techniques were used for bacterial isolation, characterization and classification of enterotoxigenic E. coli (ETEC) pathotypes. Statistical analysis was carried out to determine the frequency of virulence factors and virotypes, of fimbriae F4, F5, F6, F18, F41 and toxins LT, STa, STb and STx2e. Out of 456 E. coli isolates, 287 (62.9%) samples showed significant growth of E. coli. Among them, 194 (67.6%) samples showed at least one virulence factor, indicating that ETEC is an important etiological agent of diarrhea in weaned piglets. Higher frequencies were found of fimbria F4 and F18 and enterotoxins LT, STa and STb. Significant association was found to F4, LT, STa and STb; between F18 and STa and STx2e; between F5 and LT, STa and STb. The most frequent virotypes were F18-STa, F4-LT-STa-STb, F4-STa, F4-LT-STb and F18-STa-STx2e. Beta-hemolysis was observed in 47.4% of samples and there was significant association between hemolytic samples and virulence factors F4, F18, STa and STx2e. Regarding fecal consistency, there was significant association of liquid feces and F4 fimbria, STa toxin and virotypes F4-STa and F4-F5-LT-STa-STb. Since there was significant association of ETEC and liquid feces in nursery piglets, it is important to prioritize the sampling of liquid feces for the diagnosis etiologic cause of diarrhea.
650 $aDiarrhea
650 $aEnterotoxigenic Escherichia coli
650 $aPiglets
650 $aSwine
650 $aDiarreia
650 $aEscherichia Coli
650 $aSuíno
653 $aConsistência fecal
653 $aEnterotoxigênica
653 $aFatores de virulência
653 $aFecal consistency
653 $aVirulence factors
700 1 $aTAKEUTI, K. L.
700 1 $aANDRADE, M. R.
700 1 $aKOERICH, P. K. V.
700 1 $aTAGLIARI, V.
700 1 $aBERNARDI, M. L.
700 1 $aCARDOSO, M. R. I.
700 1 $aBARCELLOS, D. E. S. N.
773 $tPesquisa Veterinária Brasileira, Rio de Janeiro$gv. 36, n. 4, p. 253-257, abr. 2016.
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Embrapa Unidades Centrais (AI-SEDE) |
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