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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente; Embrapa Unidades Centrais. |
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Data corrente: |
04/08/2016 |
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Data da última atualização: |
21/04/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PÁDUA, S. B. de; MARTINS, M. L.; VALLADÃO, G. M. R.; UTZ, L.; ZARA, F. J.; ISHIKAWA, M. M.; ANDRADE BELO, M. A. de. |
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Afiliação: |
SANTIAGO BENITES DE PÁDUA, AQUIVET SAÚDE AQUÁTICA; MAURÍCIO LATERÇA MARTINS, UFSC; GUSTAO MORAES RAMOS VALLADÃO, FCAV-UNESP; LAURA UTZ, PUC; FERNANDO JOSÉ ZARA, FCAV-UNESP; MARCIA MAYUMI ISHIKAWA, CNPMA; MARCO ANTONIO DE ANDRADE BELO, FCAV-UNESP. |
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Título: |
Host-parasite relationship during Epistylis sp. (Ciliophora: Epistylididae) infestation in farmed cichlid and pimelodid fish. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília v. 51, n. 5, p. 520-526, maio 2016. |
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DOI: |
http://dx.doi.org/10.1590/S0100-204X2016000500012 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The objective of this work was to describe the host?Epistylis sp. relationship during infestation on farmed fish. Five Nile tilapia (Oreochromis niloticus) and ten hybrid surubim catfish (Pseudoplatystoma reticulatum x P. corruscans), all diseased, were used for in vivo morphological analysis of sessile peritrichs by contrast microscopy. Fragments of infected tissues were subjected to histological processing and scanning electron microscopy. Epistylis sp. caused hemorrhagic ulcer disease, and cichlids were more prone to develop infestations throughout the body surface due to the attachment of the colonies to the scales, which did not occur with pimelodids. Multifocal granulomatous dermatitis was observed, associated with the hydropic degeneration of the epithelium and to ulcerative areas of necrosis. Microscopic examination showed the presence of bacterial microflora associated to Epistylis sp. peduncles. Therefore, this species can be considered a portal of entry for opportunistic bacteria.
Resumo: O objetivo deste trabalho foi descrever a relação hospedeiro?Epistylis sp. durante infestação em peixes cultivados. Foram utilizados cinco tilápias?do?nilo (Oreochromis niloticus) e dez híbridos de surubim (Pseudoplatystoma reticulatum x P. corruscans), todos parasitados, para análise morfológica in vivo de peritríquios sésseis por microscopia de contraste de fase. Fragmentos de tecidos infectados foram processados para histologia e microscopia eletrônica de varredura. Epistylis sp. causou doença ulcerativa hemorrágica, e os ciclídeos foram mais susceptíveis ao parasitismo na superfície do corpo em razão da fixação das colônias nas escamas, o que não ocorreu nos pimelodídeos. Foi observada ocorrência de dermatite granulomatosa multifocal, associada à degeneração hidrópica do epitélio e às áreas ulcerativas de necrose. O estudo microscópico mostrou a presença de bactérias associadas aos pedúnculos de Epistylis sp. Portanto, esta espécie pode ser considerada porta de entrada para bactérias oportunistas. MenosAbstract: The objective of this work was to describe the host?Epistylis sp. relationship during infestation on farmed fish. Five Nile tilapia (Oreochromis niloticus) and ten hybrid surubim catfish (Pseudoplatystoma reticulatum x P. corruscans), all diseased, were used for in vivo morphological analysis of sessile peritrichs by contrast microscopy. Fragments of infected tissues were subjected to histological processing and scanning electron microscopy. Epistylis sp. caused hemorrhagic ulcer disease, and cichlids were more prone to develop infestations throughout the body surface due to the attachment of the colonies to the scales, which did not occur with pimelodids. Multifocal granulomatous dermatitis was observed, associated with the hydropic degeneration of the epithelium and to ulcerative areas of necrosis. Microscopic examination showed the presence of bacterial microflora associated to Epistylis sp. peduncles. Therefore, this species can be considered a portal of entry for opportunistic bacteria.
Resumo: O objetivo deste trabalho foi descrever a relação hospedeiro?Epistylis sp. durante infestação em peixes cultivados. Foram utilizados cinco tilápias?do?nilo (Oreochromis niloticus) e dez híbridos de surubim (Pseudoplatystoma reticulatum x P. corruscans), todos parasitados, para análise morfológica in vivo de peritríquios sésseis por microscopia de contraste de fase. Fragmentos de tecidos infectados foram processados para histologia e microscopia eletrônica de varredura. ... Mostrar Tudo |
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Palavras-Chave: |
Patogênese; Peritriquio séssil; Sessile peritrich. |
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Thesagro: |
Doença animal; Histopatologia; Oreochromis Niloticus; Tilápia nilótica. |
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Thesaurus Nal: |
Histopathology; Pathogenesis; Pseudoplatystoma corruscans; Pseudoplatystoma reticulatum. |
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Categoria do assunto: |
--
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/146105/1/Host-parasite-relationship-during.pdf
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Marc: |
LEADER 03153naa a2200337 a 4500
001 2061493
005 2022-04-21
008 2016 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/S0100-204X2016000500012$2DOI
100 1 $aPÁDUA, S. B. de
245 $aHost-parasite relationship during Epistylis sp. (Ciliophora$bEpistylididae) infestation in farmed cichlid and pimelodid fish.
260 $c2016
520 $aAbstract: The objective of this work was to describe the host?Epistylis sp. relationship during infestation on farmed fish. Five Nile tilapia (Oreochromis niloticus) and ten hybrid surubim catfish (Pseudoplatystoma reticulatum x P. corruscans), all diseased, were used for in vivo morphological analysis of sessile peritrichs by contrast microscopy. Fragments of infected tissues were subjected to histological processing and scanning electron microscopy. Epistylis sp. caused hemorrhagic ulcer disease, and cichlids were more prone to develop infestations throughout the body surface due to the attachment of the colonies to the scales, which did not occur with pimelodids. Multifocal granulomatous dermatitis was observed, associated with the hydropic degeneration of the epithelium and to ulcerative areas of necrosis. Microscopic examination showed the presence of bacterial microflora associated to Epistylis sp. peduncles. Therefore, this species can be considered a portal of entry for opportunistic bacteria. Resumo: O objetivo deste trabalho foi descrever a relação hospedeiro?Epistylis sp. durante infestação em peixes cultivados. Foram utilizados cinco tilápias?do?nilo (Oreochromis niloticus) e dez híbridos de surubim (Pseudoplatystoma reticulatum x P. corruscans), todos parasitados, para análise morfológica in vivo de peritríquios sésseis por microscopia de contraste de fase. Fragmentos de tecidos infectados foram processados para histologia e microscopia eletrônica de varredura. Epistylis sp. causou doença ulcerativa hemorrágica, e os ciclídeos foram mais susceptíveis ao parasitismo na superfície do corpo em razão da fixação das colônias nas escamas, o que não ocorreu nos pimelodídeos. Foi observada ocorrência de dermatite granulomatosa multifocal, associada à degeneração hidrópica do epitélio e às áreas ulcerativas de necrose. O estudo microscópico mostrou a presença de bactérias associadas aos pedúnculos de Epistylis sp. Portanto, esta espécie pode ser considerada porta de entrada para bactérias oportunistas.
650 $aHistopathology
650 $aPathogenesis
650 $aPseudoplatystoma corruscans
650 $aPseudoplatystoma reticulatum
650 $aDoença animal
650 $aHistopatologia
650 $aOreochromis Niloticus
650 $aTilápia nilótica
653 $aPatogênese
653 $aPeritriquio séssil
653 $aSessile peritrich
700 1 $aMARTINS, M. L.
700 1 $aVALLADÃO, G. M. R.
700 1 $aUTZ, L.
700 1 $aZARA, F. J.
700 1 $aISHIKAWA, M. M.
700 1 $aANDRADE BELO, M. A. de
773 $tPesquisa Agropecuária Brasileira, Brasília$gv. 51, n. 5, p. 520-526, maio 2016.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agrossilvipastoril. Para informações adicionais entre em contato com cpamt.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agrossilvipastoril. |
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Data corrente: |
05/02/2020 |
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Data da última atualização: |
05/02/2020 |
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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: |
BARRO, J. P.; MEYER, M. C.; GODOY, C. V.; DIAS, A. R.; UTIAMADA, C. M.; JACCOUD FILHO, D. de S.; WRUCK, D. S. M.; BORGES, E. P.; SIQUERI, F.; JULIATTI, F. C.; CAMPOS, H. D.; NUNES JUNIOR, J.; CARNEIRO, L. C.; SILVA, L. H. C. P. da; MARTINS, M. C.; BALARDIN, R. S.; ZITO, R. K.; FURLAN, S. H.; VENANCIO, W. S; DEL PONTE, E. M. |
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Afiliação: |
JHONATAN P. BARRO, Universidade Federal de Voçosa, Viçosa, MG; MAURICIO CONRADO MEYER, CNPSO; CLAUDIA VIEIRA GODOY, CNPSO; ALFREDO R. DIAS, Fundação Chapadão, Chapadão do Sul, MS; CARLOS M. UTIAMADA, TAGRO, Londrina, PR; DAVID DE S. JACCOUD FILHO, UEPG, Ponta Grossa, PR; DULANDULA SILVA MIGUEL WRUCK, CPAMT; EDSON P. BORGES, Fundação Chapadão, Chapadão do Sul, MS; FABIANO SIQUERI, Fundação Mato Grosso, Rondonópolis, MT.; FERNANDO C. JULIATTI, Universidade Federal de Uberlândia, Uberlândia, MG.; HERCULES D. CAMPOS, Universidade de Rio Verde, Rio Verde, GO.; JOSE NUNES JUNIOR, Centro Tecnológico para Pesquisas Agropecuárias,Goiânia, GO; LUCIANA C. CARNEIRO, Universidade Federal de Goiás, Jataí , GO.; LUIS H. C. P. DA SILVA, AgroCarregal, Rio Verde, GO.; MONICA C. MARTINS, Círculo Verde Assessoria Agronômica e Pesquisa, Luís Eduardo Magalhães, BA.; RICARDO S. BALARDIN, Universidade Federal de Santa Maria, Santa Maria, RS.; ROBERTO KAZUHIKO ZITO, CNPSO; SILVANIA H. FURLAN, Instituto Biológico, São Paulo, SP.; WILSON S. VENANCIO, CWR Pesquisa Agrícola, Ponta Grossa, PR.; EMERSON MEDEIROS DEL PONTE, Universidade Federal de Viçosa, Viçosa, MG. |
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Título: |
Performance and Profitability of Fungicides for Managing Soybean White Mold:A 10-Year Summary of Cooperative Trials |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Plant Disease, v. 103, n. 9, p. 2212-2220, 2019. |
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ISSN: |
0191-2917 |
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Idioma: |
Inglês |
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Conteúdo: |
White mold, caused by Sclerotinia sclerotiorum, is a yield-limiting disease of soybean in Brazil. Uniform fungicide trials have been conducted annually since 2009. Data from 74 cooperative field trials conducted over a 10-year period were assembled. We selected five fungicides applied two times around flowering: dimoxystrobin plus boscalid (DIMO+BOSC), carbendazim plus procymidone (CARB+PROC), fluazinam (FLUZ), fluopyram (FLUO), and procymidone (PROC). For comparison, thiophanate-methyl (TMET) applied four times was also included as a low-cost treatment. Network models were fitted to the log of white mold incidence (percentages) and log of sclerotia mass data (grams/hectare) and to the nontransformed yield data (kilograms/hectare) for each treatment, including the untreated check. Back-transformation of the meta-analytic estimates indicated that the lowest and highest mean (95% confidence interval [CI]) percent reductions in incidence and sclerotia mass were 54.2 (49.3 to 58.7) and 51.6% (43.7 to 58.3) for TMET and 83.8 (79.1 to 87.5) and 87% (81.9 to 91.6) for CARB+PROC, respectively. The overall mean (95% CI) yield responses ranged from 323 kg/ha (247.4 to 400.3) for TMET to 626 kg/ha (521.7 to 731.7) for DIMO+BOSC, but the variance was significantly reduced by a binary variable (30% threshold) describing disease incidence in the untreated check. On average, an increment of 352 kg/ha was estimated for trials where the incidence was >30% compared with the low-disease scenario. Hence, the probability of breaking even on fungicide costs for the high-disease scenario was >65% for the more effective, but more expensive fungicide (FLUZ) than TMET. For the low-disease scenario, profitability was less likely and depended more on variations in fungicide cost and soybean price. MenosWhite mold, caused by Sclerotinia sclerotiorum, is a yield-limiting disease of soybean in Brazil. Uniform fungicide trials have been conducted annually since 2009. Data from 74 cooperative field trials conducted over a 10-year period were assembled. We selected five fungicides applied two times around flowering: dimoxystrobin plus boscalid (DIMO+BOSC), carbendazim plus procymidone (CARB+PROC), fluazinam (FLUZ), fluopyram (FLUO), and procymidone (PROC). For comparison, thiophanate-methyl (TMET) applied four times was also included as a low-cost treatment. Network models were fitted to the log of white mold incidence (percentages) and log of sclerotia mass data (grams/hectare) and to the nontransformed yield data (kilograms/hectare) for each treatment, including the untreated check. Back-transformation of the meta-analytic estimates indicated that the lowest and highest mean (95% confidence interval [CI]) percent reductions in incidence and sclerotia mass were 54.2 (49.3 to 58.7) and 51.6% (43.7 to 58.3) for TMET and 83.8 (79.1 to 87.5) and 87% (81.9 to 91.6) for CARB+PROC, respectively. The overall mean (95% CI) yield responses ranged from 323 kg/ha (247.4 to 400.3) for TMET to 626 kg/ha (521.7 to 731.7) for DIMO+BOSC, but the variance was significantly reduced by a binary variable (30% threshold) describing disease incidence in the untreated check. On average, an increment of 352 kg/ha was estimated for trials where the incidence was >30% compared with the low-disease scenar... Mostrar Tudo |
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Thesagro: |
Colheita; Controle Químico; Impacto Econômico. |
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Thesaurus NAL: |
Chemical control; Disease control; Economic impact; Field crops; Fungi; Legumes; Oilseeds; Yields. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 03151naa a2200493 a 4500
001 2119868
005 2020-02-05
008 2019 bl uuuu u00u1 u #d
022 $a0191-2917
100 1 $aBARRO, J. P.
245 $aPerformance and Profitability of Fungicides for Managing Soybean White Mold$bA 10-Year Summary of Cooperative Trials$h[electronic resource]
260 $c2019
520 $aWhite mold, caused by Sclerotinia sclerotiorum, is a yield-limiting disease of soybean in Brazil. Uniform fungicide trials have been conducted annually since 2009. Data from 74 cooperative field trials conducted over a 10-year period were assembled. We selected five fungicides applied two times around flowering: dimoxystrobin plus boscalid (DIMO+BOSC), carbendazim plus procymidone (CARB+PROC), fluazinam (FLUZ), fluopyram (FLUO), and procymidone (PROC). For comparison, thiophanate-methyl (TMET) applied four times was also included as a low-cost treatment. Network models were fitted to the log of white mold incidence (percentages) and log of sclerotia mass data (grams/hectare) and to the nontransformed yield data (kilograms/hectare) for each treatment, including the untreated check. Back-transformation of the meta-analytic estimates indicated that the lowest and highest mean (95% confidence interval [CI]) percent reductions in incidence and sclerotia mass were 54.2 (49.3 to 58.7) and 51.6% (43.7 to 58.3) for TMET and 83.8 (79.1 to 87.5) and 87% (81.9 to 91.6) for CARB+PROC, respectively. The overall mean (95% CI) yield responses ranged from 323 kg/ha (247.4 to 400.3) for TMET to 626 kg/ha (521.7 to 731.7) for DIMO+BOSC, but the variance was significantly reduced by a binary variable (30% threshold) describing disease incidence in the untreated check. On average, an increment of 352 kg/ha was estimated for trials where the incidence was >30% compared with the low-disease scenario. Hence, the probability of breaking even on fungicide costs for the high-disease scenario was >65% for the more effective, but more expensive fungicide (FLUZ) than TMET. For the low-disease scenario, profitability was less likely and depended more on variations in fungicide cost and soybean price.
650 $aChemical control
650 $aDisease control
650 $aEconomic impact
650 $aField crops
650 $aFungi
650 $aLegumes
650 $aOilseeds
650 $aYields
650 $aColheita
650 $aControle Químico
650 $aImpacto Econômico
700 1 $aMEYER, M. C.
700 1 $aGODOY, C. V.
700 1 $aDIAS, A. R.
700 1 $aUTIAMADA, C. M.
700 1 $aJACCOUD FILHO, D. de S.
700 1 $aWRUCK, D. S. M.
700 1 $aBORGES, E. P.
700 1 $aSIQUERI, F.
700 1 $aJULIATTI, F. C.
700 1 $aCAMPOS, H. D.
700 1 $aNUNES JUNIOR, J.
700 1 $aCARNEIRO, L. C.
700 1 $aSILVA, L. H. C. P. da
700 1 $aMARTINS, M. C.
700 1 $aBALARDIN, R. S.
700 1 $aZITO, R. K.
700 1 $aFURLAN, S. H.
700 1 $aVENANCIO, W. S
700 1 $aDEL PONTE, E. M.
773 $tPlant Disease$gv. 103, n. 9, p. 2212-2220, 2019.
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