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Registro Completo |
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
20/07/2011 |
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Data da última atualização: |
15/02/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CARAZZOLLE, M. F.; RABELLO, F. R.; MARTINS, N. F.; SOUZA, A. A. de; AMARAL, A. M. do; FREITAS-ASTUA, J.; PEREIRA, G. A. G.; MACHADO, M. A.; MEHTA, A. |
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Afiliação: |
Marcelo Falsarella Carazzolle, UNICAMP; Fernanda Rodrigues Rabello, UnB; NATALIA FLORENCIO MARTINS, CENARGEN; Alessandra A. de Souza, APTA; Alexandre M. do Amaral, APTA; JULIANA DE FREITAS ASTUA, CNPMF; Gonçalo A. G. Pereira, UNICAMP; Marcos A. Machado, APTA; ANGELA MEHTA DOS REIS, CENARGEN. |
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Título: |
Identification of defence-related genes expressed in coffee and citrus during infection by Xylella fastidiosa. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
European Journal of Plant Pathology , v. 130, n. 4, p. 529-540, 2011. |
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DOI: |
10.1007/s10658-011-9775-5 |
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Idioma: |
Português |
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Conteúdo: |
One of the phytosanitary problems of coffee cultivation in Brazil is Coffee Leaf Scorch (CLS) disease, caused by the phytopathogenic bacterium Xylella fastidiosa. Due to the economic importance of coffee to Brazil and the losses caused by X. fastidiosa, a cDNA library (RX1) was constructed using infected coffee stems. This library is one of the 37 coffee EST libraries constructed using different organs and tissues and biological conditions (Coffee Genome Project-CafEST). The objective of this study was to identify genes potentially involved in defence processes in response to X. fastidiosa infection by in silico analysis of the transcripts from the RX1 library as well as compare the coffee ESTs to citrus Xylella-infected ESTs. Clustering analysis of the RX1 library grouped a total of 7,501 sequences into 3,248 contigs, 19 of which were not found in the other 36 libraries. Additionally, 119 contigs were considered differentially expressed in comparison with the other libraries and according to statistical criteria. The global analysis of these contigs showed several genes involved in dehydration and photosynthesis. A total of 2,235 singlets were also obtained in the RX1 library and several of these genes are classically involved in defence processes. The comparison to a Xylella-infected citrus EST library revealed several genes similarly modulated in both species, indicating common defence mechanisms in both host plants in response to X. fastidiosa. The results obtained showed that water deprivation and response to osmotic and oxidative stress were expressed in a similar way in both coffee and citrus libraries. This is the first study to propose a common mechanism shared by citrus and coffee plants in response to the same pathogen. MenosOne of the phytosanitary problems of coffee cultivation in Brazil is Coffee Leaf Scorch (CLS) disease, caused by the phytopathogenic bacterium Xylella fastidiosa. Due to the economic importance of coffee to Brazil and the losses caused by X. fastidiosa, a cDNA library (RX1) was constructed using infected coffee stems. This library is one of the 37 coffee EST libraries constructed using different organs and tissues and biological conditions (Coffee Genome Project-CafEST). The objective of this study was to identify genes potentially involved in defence processes in response to X. fastidiosa infection by in silico analysis of the transcripts from the RX1 library as well as compare the coffee ESTs to citrus Xylella-infected ESTs. Clustering analysis of the RX1 library grouped a total of 7,501 sequences into 3,248 contigs, 19 of which were not found in the other 36 libraries. Additionally, 119 contigs were considered differentially expressed in comparison with the other libraries and according to statistical criteria. The global analysis of these contigs showed several genes involved in dehydration and photosynthesis. A total of 2,235 singlets were also obtained in the RX1 library and several of these genes are classically involved in defence processes. The comparison to a Xylella-infected citrus EST library revealed several genes similarly modulated in both species, indicating common defence mechanisms in both host plants in response to X. fastidiosa. The results obtained showe... Mostrar Tudo |
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Palavras-Chave: |
Plant disease. |
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Thesagro: |
Doença de Planta; Xylella Fastidiosa. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/38084/1/id27798.pdf
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Marc: |
LEADER 02587naa a2200265 a 4500
001 1901587
005 2023-02-15
008 2011 bl uuuu u00u1 u #d
024 7 $a10.1007/s10658-011-9775-5$2DOI
100 1 $aCARAZZOLLE, M. F.
245 $aIdentification of defence-related genes expressed in coffee and citrus during infection by Xylella fastidiosa.$h[electronic resource]
260 $c2011
520 $aOne of the phytosanitary problems of coffee cultivation in Brazil is Coffee Leaf Scorch (CLS) disease, caused by the phytopathogenic bacterium Xylella fastidiosa. Due to the economic importance of coffee to Brazil and the losses caused by X. fastidiosa, a cDNA library (RX1) was constructed using infected coffee stems. This library is one of the 37 coffee EST libraries constructed using different organs and tissues and biological conditions (Coffee Genome Project-CafEST). The objective of this study was to identify genes potentially involved in defence processes in response to X. fastidiosa infection by in silico analysis of the transcripts from the RX1 library as well as compare the coffee ESTs to citrus Xylella-infected ESTs. Clustering analysis of the RX1 library grouped a total of 7,501 sequences into 3,248 contigs, 19 of which were not found in the other 36 libraries. Additionally, 119 contigs were considered differentially expressed in comparison with the other libraries and according to statistical criteria. The global analysis of these contigs showed several genes involved in dehydration and photosynthesis. A total of 2,235 singlets were also obtained in the RX1 library and several of these genes are classically involved in defence processes. The comparison to a Xylella-infected citrus EST library revealed several genes similarly modulated in both species, indicating common defence mechanisms in both host plants in response to X. fastidiosa. The results obtained showed that water deprivation and response to osmotic and oxidative stress were expressed in a similar way in both coffee and citrus libraries. This is the first study to propose a common mechanism shared by citrus and coffee plants in response to the same pathogen.
650 $aDoença de Planta
650 $aXylella Fastidiosa
653 $aPlant disease
700 1 $aRABELLO, F. R.
700 1 $aMARTINS, N. F.
700 1 $aSOUZA, A. A. de
700 1 $aAMARAL, A. M. do
700 1 $aFREITAS-ASTUA, J.
700 1 $aPEREIRA, G. A. G.
700 1 $aMACHADO, M. A.
700 1 $aMEHTA, A.
773 $tEuropean Journal of Plant Pathology$gv. 130, n. 4, p. 529-540, 2011.
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Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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Biblioteca |
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Origem |
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Classificação |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Amapá; Embrapa Unidades Centrais. |
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Data corrente: |
30/08/2018 |
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Data da última atualização: |
31/10/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
ANDRADE-PORTO, S. M.; RAMOS, C. A.; ROQUE, R.; AFFONSO, E. G.; BARCELLOS, J. F. M.; QUEIROZ, M. N.; ARAÚJO, C. S. O.; TAVARES-DIAS, M. |
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Afiliação: |
SANNY M. ANDRADE-PORTO, UFAM; CLEVERSON A. RAMOS, UFAM; ROSEMARY ROQUE, INPA; ELIZABETH G. AFFONSO, INPA; JOSÉ F. M. BARCELLOS, UFAM; MARIETA N. QUEIROZ, Universidade Nilton Lins; CLEUSA S. O. ARAÚJO, UEA; MARCOS TAVARES DIAS, CPAF-AP. |
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Título: |
Histopathological evaluation of formalin toxicity in Arapaima gigas (Arapaimidae), the giant fish from Amazon. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, v. 38, n. 6, p. 1015-1025, Jun. 2018 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to determine the lethal concentration and the structural and ultra-structural effects caused by the formalin exposure on juveniles of Arapaima gigas. Ninety fish (60.1± 2.5g and 20.2±0.9cm) were exposed to 0, 22, 44, 66, 88 and 110mg L-1 in order to determine the lethal concentration (LC50-96h) that was 36.4mg L-1 of formalin. Sublethal effects were evaluated using histopathological analysis on the gills and assessment of behavioral alterations and clinical signs. The LC50 of formalin for 24, 48 and 72h was 88.3, 64.7 and 56.8mg L-1 respectively. Clinical signs and behavioral changes were found: erratic swimming, lethargy, crowding on the water surface, loss of hydrodynamic equilibrium, spasms and agonistic confrontation, which were observed only at 88 and 110mg L-1. The histological alteration index (HAI) showed that 66, 88 and 100mg L-1 presented significant difference (p<0.05) in relation to unexposed fish, indicating that moderate damage to the gills of fish exposed to formalin had occurred. The mean values of alteration (MVA) for 22, 44, 66, 88 and 110mg L-1 were 1.14, 1.29, 1.51, 1.53 and 1.60 respectively, and differences in this index were only observed with 110 mgL-1 of formalin. It is therefore possible to conclude that sublethal concentrations of formalin (22.0mg L-1) did not compromise the health of juveniles of A. gigas. Finally, concentrations greater than to LC50-96h may be carefully used for short-term exposure, since the MVA for all concentrations tested only indicated localized lesions that did not compromise gills functionality of exposed fish. MenosThis study aimed to determine the lethal concentration and the structural and ultra-structural effects caused by the formalin exposure on juveniles of Arapaima gigas. Ninety fish (60.1± 2.5g and 20.2±0.9cm) were exposed to 0, 22, 44, 66, 88 and 110mg L-1 in order to determine the lethal concentration (LC50-96h) that was 36.4mg L-1 of formalin. Sublethal effects were evaluated using histopathological analysis on the gills and assessment of behavioral alterations and clinical signs. The LC50 of formalin for 24, 48 and 72h was 88.3, 64.7 and 56.8mg L-1 respectively. Clinical signs and behavioral changes were found: erratic swimming, lethargy, crowding on the water surface, loss of hydrodynamic equilibrium, spasms and agonistic confrontation, which were observed only at 88 and 110mg L-1. The histological alteration index (HAI) showed that 66, 88 and 100mg L-1 presented significant difference (p<0.05) in relation to unexposed fish, indicating that moderate damage to the gills of fish exposed to formalin had occurred. The mean values of alteration (MVA) for 22, 44, 66, 88 and 110mg L-1 were 1.14, 1.29, 1.51, 1.53 and 1.60 respectively, and differences in this index were only observed with 110 mgL-1 of formalin. It is therefore possible to conclude that sublethal concentrations of formalin (22.0mg L-1) did not compromise the health of juveniles of A. gigas. Finally, concentrations greater than to LC50-96h may be carefully used for short-term exposure, since the MVA for all concentr... Mostrar Tudo |
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Palavras-Chave: |
Formalina; Toxicidade; Toxicoses; Treatment. |
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Thesagro: |
Histopatologia; Peixe de Água Doce; Pirarucu; Tratamento. |
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Thesaurus NAL: |
Arapaima gigas; Arapaimidae; Formalin; Freshwater fish; Histopathology; Toxicity. |
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Categoria do assunto: |
--
S Ciências Biológicas |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/183018/1/CPAF-AP-2018-Histopathological-evalution-of-formalin.pdf
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/182143/1/Histopathological-evaluation-of-formalin-toxicity.pdf
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Marc: |
LEADER 02660naa a2200373 a 4500
001 2095738
005 2018-10-31
008 2018 bl uuuu u00u1 u #d
100 1 $aANDRADE-PORTO, S. M.
245 $aHistopathological evaluation of formalin toxicity in Arapaima gigas (Arapaimidae), the giant fish from Amazon.$h[electronic resource]
260 $c2018
520 $aThis study aimed to determine the lethal concentration and the structural and ultra-structural effects caused by the formalin exposure on juveniles of Arapaima gigas. Ninety fish (60.1± 2.5g and 20.2±0.9cm) were exposed to 0, 22, 44, 66, 88 and 110mg L-1 in order to determine the lethal concentration (LC50-96h) that was 36.4mg L-1 of formalin. Sublethal effects were evaluated using histopathological analysis on the gills and assessment of behavioral alterations and clinical signs. The LC50 of formalin for 24, 48 and 72h was 88.3, 64.7 and 56.8mg L-1 respectively. Clinical signs and behavioral changes were found: erratic swimming, lethargy, crowding on the water surface, loss of hydrodynamic equilibrium, spasms and agonistic confrontation, which were observed only at 88 and 110mg L-1. The histological alteration index (HAI) showed that 66, 88 and 100mg L-1 presented significant difference (p<0.05) in relation to unexposed fish, indicating that moderate damage to the gills of fish exposed to formalin had occurred. The mean values of alteration (MVA) for 22, 44, 66, 88 and 110mg L-1 were 1.14, 1.29, 1.51, 1.53 and 1.60 respectively, and differences in this index were only observed with 110 mgL-1 of formalin. It is therefore possible to conclude that sublethal concentrations of formalin (22.0mg L-1) did not compromise the health of juveniles of A. gigas. Finally, concentrations greater than to LC50-96h may be carefully used for short-term exposure, since the MVA for all concentrations tested only indicated localized lesions that did not compromise gills functionality of exposed fish.
650 $aArapaima gigas
650 $aArapaimidae
650 $aFormalin
650 $aFreshwater fish
650 $aHistopathology
650 $aToxicity
650 $aHistopatologia
650 $aPeixe de Água Doce
650 $aPirarucu
650 $aTratamento
653 $aFormalina
653 $aToxicidade
653 $aToxicoses
653 $aTreatment
700 1 $aRAMOS, C. A.
700 1 $aROQUE, R.
700 1 $aAFFONSO, E. G.
700 1 $aBARCELLOS, J. F. M.
700 1 $aQUEIROZ, M. N.
700 1 $aARAÚJO, C. S. O.
700 1 $aTAVARES-DIAS, M.
773 $tPesquisa Veterinária Brasileira$gv. 38, n. 6, p. 1015-1025, Jun. 2018
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Embrapa Amapá (CPAF-AP) |
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