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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
28/10/2011 |
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Data da última atualização: |
26/05/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DIAS, C. V.; MENDES, J. S.; SANTOS, A. C. dos; PIROVANI, C. P.; GESTEIRA, A. da S.; MICHELI, F.; GRAMACHO, K. P.; HAMMERSTONE, J.; MAZZAFERA, P.; CASCARDO, J. C. de M. |
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Afiliação: |
CRISTIANO VILLELA DIAS, UESC; JULIANO SALES MENDES, UESC; ANDERSON CARVALHO DOS SANTOS, UESC; CARLOS PRIMINHO PIROVANI, UESC; ABELMON DA SILVA GESTEIRA, CNPMF; FABIENNE MICHELI, UESC; KARINA PERES GRAMACHO, CEPLAC; JOHN HAMMERSTONE, Mars Center for Cocoa Science; PAULO MAZZAFERA, UNICAMP; JÚLIO CÉZAR DE MATTOS CASCARDO, UESC. |
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Título: |
Hydrogen peroxide formation in cacao tissues infected by the hemibiotrophic fungus Moniliophthora perniciosa. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Plant Physiology and Biochemistry, v. 49, p. 917-922, 2011. |
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DOI: |
10.1016/j.plaphy.2011.05.004 |
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Idioma: |
Inglês |
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Conteúdo: |
In plant-pathogen interaction, the hydrogen peroxide (H2O2) may play a dual role: its accumulation inhibits the growth of biotrophic pathogens, while it could help the infection/colonization process of plant by necrotrophic pathogens. One of the possible pathways of H2O2 production involves oxalic acid (Oxa) degradation by apoplastic oxalate oxidase. Here, we analyzed the production of H2O2, the presence of calcium oxalate (CaOx) crystals and the content of Oxa and ascorbic acid (Asa) e the main precursor of Oxa in plants e in susceptible and resistant cacao (Theobroma cacao L.) infected by the hemibiotrophic fungus Moniliophthora perniciosa. We also quantified the transcript level of ascorbate peroxidase (Apx), germin-like oxalate oxidase (Glp) and dehydroascorbate reductase (Dhar) by RT-qPCR. We report that the CaOx crystal amount and the H2O2 levels in the two varieties present distinct temporal and genotype dependent patterns. Susceptible variety accumulated more CaOx crystals than the resistant one, and the dissolution of these crystals occurred in the early infection steps and in the final stage of the disease in the resistant and the susceptible variety, respectively. High expression of the Glp and accumulation of Oxa were observed in the resistant variety. The content of Asa increased in the inoculated susceptible variety, but remained constant in the resistant one. The susceptible variety presented reduced Dhar expression. The role of H2O2 and its formation from Oxa via Apx and Glp in resistant and susceptible variety infected by M. perniciosa were discussed. MenosIn plant-pathogen interaction, the hydrogen peroxide (H2O2) may play a dual role: its accumulation inhibits the growth of biotrophic pathogens, while it could help the infection/colonization process of plant by necrotrophic pathogens. One of the possible pathways of H2O2 production involves oxalic acid (Oxa) degradation by apoplastic oxalate oxidase. Here, we analyzed the production of H2O2, the presence of calcium oxalate (CaOx) crystals and the content of Oxa and ascorbic acid (Asa) e the main precursor of Oxa in plants e in susceptible and resistant cacao (Theobroma cacao L.) infected by the hemibiotrophic fungus Moniliophthora perniciosa. We also quantified the transcript level of ascorbate peroxidase (Apx), germin-like oxalate oxidase (Glp) and dehydroascorbate reductase (Dhar) by RT-qPCR. We report that the CaOx crystal amount and the H2O2 levels in the two varieties present distinct temporal and genotype dependent patterns. Susceptible variety accumulated more CaOx crystals than the resistant one, and the dissolution of these crystals occurred in the early infection steps and in the final stage of the disease in the resistant and the susceptible variety, respectively. High expression of the Glp and accumulation of Oxa were observed in the resistant variety. The content of Asa increased in the inoculated susceptible variety, but remained constant in the resistant one. The susceptible variety presented reduced Dhar expression. The role of H2O2 and its formation from Oxa... Mostrar Tudo |
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Thesagro: |
Cacau; Fungo. |
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Thesaurus Nal: |
Moniliophthora perniciosa. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02434naa a2200277 a 4500
001 1904350
005 2023-05-26
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1016/j.plaphy.2011.05.004$2DOI
100 1 $aDIAS, C. V.
245 $aHydrogen peroxide formation in cacao tissues infected by the hemibiotrophic fungus Moniliophthora perniciosa.$h[electronic resource]
260 $c2011
520 $aIn plant-pathogen interaction, the hydrogen peroxide (H2O2) may play a dual role: its accumulation inhibits the growth of biotrophic pathogens, while it could help the infection/colonization process of plant by necrotrophic pathogens. One of the possible pathways of H2O2 production involves oxalic acid (Oxa) degradation by apoplastic oxalate oxidase. Here, we analyzed the production of H2O2, the presence of calcium oxalate (CaOx) crystals and the content of Oxa and ascorbic acid (Asa) e the main precursor of Oxa in plants e in susceptible and resistant cacao (Theobroma cacao L.) infected by the hemibiotrophic fungus Moniliophthora perniciosa. We also quantified the transcript level of ascorbate peroxidase (Apx), germin-like oxalate oxidase (Glp) and dehydroascorbate reductase (Dhar) by RT-qPCR. We report that the CaOx crystal amount and the H2O2 levels in the two varieties present distinct temporal and genotype dependent patterns. Susceptible variety accumulated more CaOx crystals than the resistant one, and the dissolution of these crystals occurred in the early infection steps and in the final stage of the disease in the resistant and the susceptible variety, respectively. High expression of the Glp and accumulation of Oxa were observed in the resistant variety. The content of Asa increased in the inoculated susceptible variety, but remained constant in the resistant one. The susceptible variety presented reduced Dhar expression. The role of H2O2 and its formation from Oxa via Apx and Glp in resistant and susceptible variety infected by M. perniciosa were discussed.
650 $aMoniliophthora perniciosa
650 $aCacau
650 $aFungo
700 1 $aMENDES, J. S.
700 1 $aSANTOS, A. C. dos
700 1 $aPIROVANI, C. P.
700 1 $aGESTEIRA, A. da S.
700 1 $aMICHELI, F.
700 1 $aGRAMACHO, K. P.
700 1 $aHAMMERSTONE, J.
700 1 $aMAZZAFERA, P.
700 1 $aCASCARDO, J. C. de M.
773 $tPlant Physiology and Biochemistry$gv. 49, p. 917-922, 2011.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
19/10/2018 |
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Data da última atualização: |
19/10/2018 |
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Autoria: |
OLIVEIRA, M. C.; PEREIRA, G. O.; DAOUALIBI, Y.; DUTRA, V.; BRITO, M. F.; CALDAS, S. A.; BALTHAZAR, D. A.; UBIALI, D. G. |
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Afiliação: |
Mariana C. Oliveira, Setor de Anatomia Patológica/Departamento de Epidemiologia e Saúde Pública/Instituto de Veterinária/Universidade Federal Rural do Rio de Janeiro - UFRRJ; Gabriela O. Pereira, Setor de Anatomia Patológica/Departamento de Epidemiologia e Saúde Pública/Instituto de Veterinária/Universidade Federal Rural do Rio de Janeiro - UFRRJ; Yasmin Daoualibi, Setor de Anatomia Patológica/Departamento de Epidemiologia e Saúde Pública/Instituto de Veterinária/Universidade Federal Rural do Rio de Janeiro - UFRRJ; Valéria Dutra, Departamento de Clínica Médica Veterinária/Universidade Federal de Mato Grosso - UFMT; Marilene F. Brito, Setor de Anatomia Patológica/Departamento de Epidemiologia e Saúde Pública/Instituto de Veterinária/Universidade Federal Rural do Rio de Janeiro - UFRRJ; Saulo A. Caldas, Departamento de Medicina e Cirurgia Veterinária/Universidade Federal de Roraima - UFRR; Daniel A. Balthazar, Departamento de Medicina e Cirurgia Veterinária/Universidade Federal de Roraima - UFRR; Daniel G. Ubiali, Setor de Anatomia Patológica/Departamento de Epidemiologia e Saúde Pública/Instituto de Veterinária/Universidade Federal Rural do Rio de Janeiro - UFRRJ. |
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Título: |
An outbreak of malignant catarrhal fever in Sambar deer (Rusa unicolor). |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Brasília, DF, v. 38, n 8, p. 1675-1680, agosto 2018 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Surto de febre catarral maligna em cervos Sambar (Rusa Unicolor). |
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Conteúdo: |
Malignant catarrhal fever (MCF) is an infectious, pansystemic and highly fatal disease with wide geographic distribution. The species that are clinically prone to it include cattle, deer and bison. In Brazil, the disease in ruminants and deer is associated with the contact with sheep, especially during labor, when the fetal remains that are eliminated contain the ovine herpesvirus 2 (OvHV-2). The outbreak took place in a conservationist property in the city of Casimiro de Abreu/RJ, which hosted 23 Sambar deer, and, of these, 19 died, showing neurological signs. The deer lived in a location together with 15 male and female meat sheep. A female specimen of the Sambar deer (Rusa unicolor), aged approximately three years, which had presented with neurological clinical signs was referred to necropsy in the Setor de Anatomia Patológica at Universidade Federal Rural do Rio de Janeiro (SAP/UFRRJ). During necropsy, cerebrospinal fluid was sampled for analysis; fragments of several organs were fixated in 10% buffered formalin and processed for histopathological analysis. Fragments of occipital lobe, cerebellum and bulb were collected to perform the polymerase chain reaction (PCR). The diagnosis of this outbreak was based on epidemiological, clinical and pathological findings, and on the amplification of the OvHV-2 DNA through PCR. The histological changes were the base to confirm the MCF case and were characterized by degeneration of vascular endothelial cells, fibrinoid vasculitis, hyperplasia and necrosis of lymphoid organs. However, PCR was an important tool to confirm the diagnosis. MCF as an important disease with nervous symptomatology in deer MenosMalignant catarrhal fever (MCF) is an infectious, pansystemic and highly fatal disease with wide geographic distribution. The species that are clinically prone to it include cattle, deer and bison. In Brazil, the disease in ruminants and deer is associated with the contact with sheep, especially during labor, when the fetal remains that are eliminated contain the ovine herpesvirus 2 (OvHV-2). The outbreak took place in a conservationist property in the city of Casimiro de Abreu/RJ, which hosted 23 Sambar deer, and, of these, 19 died, showing neurological signs. The deer lived in a location together with 15 male and female meat sheep. A female specimen of the Sambar deer (Rusa unicolor), aged approximately three years, which had presented with neurological clinical signs was referred to necropsy in the Setor de Anatomia Patológica at Universidade Federal Rural do Rio de Janeiro (SAP/UFRRJ). During necropsy, cerebrospinal fluid was sampled for analysis; fragments of several organs were fixated in 10% buffered formalin and processed for histopathological analysis. Fragments of occipital lobe, cerebellum and bulb were collected to perform the polymerase chain reaction (PCR). The diagnosis of this outbreak was based on epidemiological, clinical and pathological findings, and on the amplification of the OvHV-2 DNA through PCR. The histological changes were the base to confirm the MCF case and were characterized by degeneration of vascular endothelial cells, fibrinoid vasculitis, h... Mostrar Tudo |
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Palavras-Chave: |
Cervo Samba; Cervus unicolor; Febre catarral maligna; Malignant catharral fever; OvHV-2; Sambar deer; Viroses. |
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Thesagro: |
Virose Animal. |
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Thesaurus NAL: |
Rhadinovirus; Rusa unicolor. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/184770/1/An-outbreak-of-malignant-catarrhal.pdf
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Marc: |
LEADER 02694naa a2200337 a 4500
001 2097809
005 2018-10-19
008 2018 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, M. C.
245 $aAn outbreak of malignant catarrhal fever in Sambar deer (Rusa unicolor).$h[electronic resource]
260 $c2018
500 $aTítulo em português: Surto de febre catarral maligna em cervos Sambar (Rusa Unicolor).
520 $aMalignant catarrhal fever (MCF) is an infectious, pansystemic and highly fatal disease with wide geographic distribution. The species that are clinically prone to it include cattle, deer and bison. In Brazil, the disease in ruminants and deer is associated with the contact with sheep, especially during labor, when the fetal remains that are eliminated contain the ovine herpesvirus 2 (OvHV-2). The outbreak took place in a conservationist property in the city of Casimiro de Abreu/RJ, which hosted 23 Sambar deer, and, of these, 19 died, showing neurological signs. The deer lived in a location together with 15 male and female meat sheep. A female specimen of the Sambar deer (Rusa unicolor), aged approximately three years, which had presented with neurological clinical signs was referred to necropsy in the Setor de Anatomia Patológica at Universidade Federal Rural do Rio de Janeiro (SAP/UFRRJ). During necropsy, cerebrospinal fluid was sampled for analysis; fragments of several organs were fixated in 10% buffered formalin and processed for histopathological analysis. Fragments of occipital lobe, cerebellum and bulb were collected to perform the polymerase chain reaction (PCR). The diagnosis of this outbreak was based on epidemiological, clinical and pathological findings, and on the amplification of the OvHV-2 DNA through PCR. The histological changes were the base to confirm the MCF case and were characterized by degeneration of vascular endothelial cells, fibrinoid vasculitis, hyperplasia and necrosis of lymphoid organs. However, PCR was an important tool to confirm the diagnosis. MCF as an important disease with nervous symptomatology in deer
650 $aRhadinovirus
650 $aRusa unicolor
650 $aVirose Animal
653 $aCervo Samba
653 $aCervus unicolor
653 $aFebre catarral maligna
653 $aMalignant catharral fever
653 $aOvHV-2
653 $aSambar deer
653 $aViroses
700 1 $aPEREIRA, G. O.
700 1 $aDAOUALIBI, Y.
700 1 $aDUTRA, V.
700 1 $aBRITO, M. F.
700 1 $aCALDAS, S. A.
700 1 $aBALTHAZAR, D. A.
700 1 $aUBIALI, D. G.
773 $tPesquisa Veterinária Brasileira, Brasília, DF$gv. 38, n 8, p. 1675-1680, agosto 2018
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