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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
23/10/2017 |
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Data da última atualização: |
23/10/2017 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
CERDEIRA, A. L.; SANTOS, N. A. G.; PESSOA, M. C. P. Y.; SMITH JR, S.; LANCHOTE, V. L. |
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Afiliação: |
ANTONIO LUIZ CERDEIRA, CNPMA; USP; MARIA CONCEICAO PERES YOUNG PESSOA, CNPMA; USDA-ARS/USA; USP. |
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Título: |
Presence of Atrazine in Water in a Recharge Area of Guarany Aquifer in Brazil. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
In: ANNUAL MISSISSIPPI WATER RESOURCES CONFERENCE, 34., 2004, Jackson. Proceedings... Raymond: Mississippi Sate University: Mississippi Water Resources Research Institute, 2004. p. 43-46. |
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Idioma: |
Inglês |
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Conteúdo: |
The region of Ribeirao Preto City located in Sao Paulo State, southeastern Brazil, is an important sugarcane, soybean and corn producing area. This region is also an important recharge area for groundwater of the Guarany aquifer, a water supply source of the city and region. The cultivation of grain and sugar cane in thes area demands the frequent use of the herbicide atrazine (2-chloro-4- (ethylamino)-6-(isopropylamino)-S-triazine). This research was conducted to characterize the potential contamination of groundwater with atrazine. Surface water samples were collected in the Espraiado stream in a selected watershed on the area, during the years of 1995-1998. Groundwater was also collected in wells located at the edge of the watershed during the years of 1999 to 2002. The water samples were analyzed by HPLC (High Performance Liquid Chromatography) procedure followed by GC-MS form confirmation. To predict the atrazine leaching in the area, the CMLS-94 (Chemical Movement Layered Soil) simulation model was also used. Only four atrazine detections in surface water were found, however, none of them were confirmed with GC-MS. No atrazine was detected in groundwater samples. The results obtained by the CMLS-94 simulations predicted that atrazine, after four years from the application date, would not have reached the depth of the confined aquifer (40m). |
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Palavras-Chave: |
Guarany Aquifer. |
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Thesaurus Nal: |
atrazine; Brazil; water. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/165398/1/2004SP-87-Cerdeira-Presence-15768.pdf
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Marc: |
LEADER 02099nam a2200205 a 4500
001 2077901
005 2017-10-23
008 2004 bl uuuu u00u1 u #d
100 1 $aCERDEIRA, A. L.
245 $aPresence of Atrazine in Water in a Recharge Area of Guarany Aquifer in Brazil.$h[electronic resource]
260 $aIn: ANNUAL MISSISSIPPI WATER RESOURCES CONFERENCE, 34., 2004, Jackson. Proceedings... Raymond: Mississippi Sate University: Mississippi Water Resources Research Institute, 2004. p. 43-46.$c2004
520 $aThe region of Ribeirao Preto City located in Sao Paulo State, southeastern Brazil, is an important sugarcane, soybean and corn producing area. This region is also an important recharge area for groundwater of the Guarany aquifer, a water supply source of the city and region. The cultivation of grain and sugar cane in thes area demands the frequent use of the herbicide atrazine (2-chloro-4- (ethylamino)-6-(isopropylamino)-S-triazine). This research was conducted to characterize the potential contamination of groundwater with atrazine. Surface water samples were collected in the Espraiado stream in a selected watershed on the area, during the years of 1995-1998. Groundwater was also collected in wells located at the edge of the watershed during the years of 1999 to 2002. The water samples were analyzed by HPLC (High Performance Liquid Chromatography) procedure followed by GC-MS form confirmation. To predict the atrazine leaching in the area, the CMLS-94 (Chemical Movement Layered Soil) simulation model was also used. Only four atrazine detections in surface water were found, however, none of them were confirmed with GC-MS. No atrazine was detected in groundwater samples. The results obtained by the CMLS-94 simulations predicted that atrazine, after four years from the application date, would not have reached the depth of the confined aquifer (40m).
650 $aatrazine
650 $aBrazil
650 $awater
653 $aGuarany Aquifer
700 1 $aSANTOS, N. A. G.
700 1 $aPESSOA, M. C. P. Y.
700 1 $aSMITH JR, S.
700 1 $aLANCHOTE, V. L.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
27/01/2016 |
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Data da última atualização: |
28/01/2016 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
RAMALHO, J. C.; RODRIGUES, A. P.; SEMEDO, J. N.; PAIS, I. P.; MARTINS, L. D.; TOMAZ, M. A.; FORTUNATO, A. S.; PALOS, I.; BATISTA-SANTOS, P.; LEITÃO, A. E.; LOPES. E.; SIMÕES-COSTA, M. C.; GOULÃO, L.; RIBEIRO-BARROS, A. I.; SILVA, M. J.; MAIA, R.; MÁGUAS, C.; REBOREDO, F. H.; PESSOA, M. F.; SANGLARD, L M.; ARAÚJO, W. L.; GHINI, R.; SCOTTI-CAMPOS, P.; DaMATTA, F. M.; LIDON, F. C. |
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Afiliação: |
JOSE C RAMALHO, Instituto Investigação Científica Tropical; ANA PAULA RODRIGUES, Universidade de Lisboa; JOSE NOBRE SEMEDO, Instituto Nacional Investigação Agrária e Veterinária; ISABEL P PAIS, Instituto Nacional Investigação Agrária e Veterinária; LIMA D MARTINS, Instituto Investigação Científica Tropical; MARCELO ANTONIO TOMAZ, UFES; ANA S FORTUNATO, Instituto Investigação Científica Tropical; I PALOS, Instituto Investigação Científica Tropical; PAULA BATISTA-SANTOS, Instituto Investigação Científica Tropical; ANTONIO E LEITAO, Instituto Investigação Científica Tropical; E LOPES, Instituto Investigação Científica Tropical; MARIA CRISTINA SIMÕES-COSTA, Instituto Investigação Científica Tropical; LUIS GOULAO, Instituto Investigação Científica Tropical; ANA I RIBEIRO-BARROS, Instituto Investigação Científica Tropical; M J SILVA, Instituto Investigação Científica Tropical; R MAIA, Universidade de Lisboa; CRISTINA MAGUAS, Universidade de Lisboa; FERNANDO H REBOREDO, Universidade Nova de Lisboa; M F PESSOA, Universidade Nova de Lisboa; L M SANGLARD, UFV; WAGNER L ARAUJO, UFV; RAQUEL GHINI, CNPMA; PAULA SCOTTI-CAMPOS, Instituto Nacional Investigação Agrária e Veterinária; FABIO MURILO DAMATTA, UFV; FERNANDO C LIDON, Universidade Nova de Lisboa. |
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Título: |
Superimposed impacts of enhanced [CO2] and high temperature on the photosynthetic metabolism of C. arabica and C. canephora genotypes. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 25., 2014, Armenia. Leveraging knowledge for coffee sustainability: proceedings. Armenia: Association for Science and Information on Coffee, 2014. p. 42-51. |
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Idioma: |
Inglês |
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Conteúdo: |
Summary: Coffee crop has been predicted to become threatened by future climate changes and global warming conditions. Yet, the long-term effects of elevated [CO2] on this plant remain to be fully elucidated. In this context, this work aims at linking coffee biochemical responses to environmental changes of [CO2] and temperature on genotypes from the two major producing species, using the photosynthetic metabolism as probe to evaluate the plant acclimation ability. Potted plants from C. arabica cv. IPR 108 and of C. canephora cv. Conilon Clone 153 were grown under environmental controlled conditions, either at 380 or 700 ?L CO2 L-1 air, for 1 year, without water, nutrient or root development restrictions. After that the temperature was gradually increased from 25/20 ºC (day/night) up to 42/34 ºC. The effects of elevated [CO2] and enhanced temperature on the photosynthetic structures were assessed through the characterization of the lipid components of chloroplast membranes, whereas the leaf metabolic performance was evaluated through the thylakoid electron transport rates (involving both photosystem (PS) I and II), and the activities of enzymes (ribulose 1,5-biphosphate carboxylase/oxygenase and ribulose 5-phosphate kinase), as well as through stable isotopes of C and N. The activities of respiratory enzymes (NADH-dependent malate dehydrogenase and pyruvate kinase) were also analyzed. The results pointed for a higher functional status along the experiment in the plants grown under elevated [CO2], with special relevance at 37 and 42ºC in IPR108. These results could be related to the qualitative changes of the membrane lipid matrix that might have helped to preserve suitable membrane fluidity for the membrane bound events (e.g., thylakoid electron transport). The PSs and enzyme data reflect an enhancement of the energetic metabolism (both photosynthesis and respiration), mostly, until 31 ºC for IPR108 and 37 ºC for CL153 at normal [CO2]. Yet, under enhanced [CO2] it was found an increase in the temperature (to 37 ºC) at which maximal values of some parameters in IPR108 (MDH, PSs activities, RuBisCO) were observed, concomitantly with the maintenance of high performance in other parameters when compared to the 380 plants. Under the highest temperature (42 ºC) the enzymes were the most sensitive point, displaying the strongest reductions, irrespective of genotype and [CO2] treatments. The temperature promoted changes in leaf ?13C, irrespective of genotype and [CO2], reflecting a decrease in WUE with heat. The changes in ?15N values may indicate different limitation steps of N assimilation, requiring further investigation. It was concluded that the coffee plants grown under elevated [CO2] apparently showed a better endurance to high temperatures, what is quite relevant in a context of predicted climate changes and global warming scenarios. MenosSummary: Coffee crop has been predicted to become threatened by future climate changes and global warming conditions. Yet, the long-term effects of elevated [CO2] on this plant remain to be fully elucidated. In this context, this work aims at linking coffee biochemical responses to environmental changes of [CO2] and temperature on genotypes from the two major producing species, using the photosynthetic metabolism as probe to evaluate the plant acclimation ability. Potted plants from C. arabica cv. IPR 108 and of C. canephora cv. Conilon Clone 153 were grown under environmental controlled conditions, either at 380 or 700 ?L CO2 L-1 air, for 1 year, without water, nutrient or root development restrictions. After that the temperature was gradually increased from 25/20 ºC (day/night) up to 42/34 ºC. The effects of elevated [CO2] and enhanced temperature on the photosynthetic structures were assessed through the characterization of the lipid components of chloroplast membranes, whereas the leaf metabolic performance was evaluated through the thylakoid electron transport rates (involving both photosystem (PS) I and II), and the activities of enzymes (ribulose 1,5-biphosphate carboxylase/oxygenase and ribulose 5-phosphate kinase), as well as through stable isotopes of C and N. The activities of respiratory enzymes (NADH-dependent malate dehydrogenase and pyruvate kinase) were also analyzed. The results pointed for a higher functional status along the experiment in the plants grown ... Mostrar Tudo |
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Palavras-Chave: |
Estresse térmico. |
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Thesagro: |
Aclimatação; Café; Clima; Coffea arabica; Dióxido de carbono; Temperatura. |
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Thesaurus NAL: |
Carbon dioxide; Climate change; Temperature. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/137918/1/2015AA013.pdf
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Marc: |
LEADER 04486nam a2200517 a 4500
001 2035374
005 2016-01-28
008 2014 bl uuuu u00u1 u #d
100 1 $aRAMALHO, J. C.
245 $aSuperimposed impacts of enhanced [CO2] and high temperature on the photosynthetic metabolism of C. arabica and C. canephora genotypes.$h[electronic resource]
260 $aIn: INTERNATIONAL CONFERENCE ON COFFEE SCIENCE, 25., 2014, Armenia. Leveraging knowledge for coffee sustainability: proceedings. Armenia: Association for Science and Information on Coffee, 2014. p. 42-51.$c2014
520 $aSummary: Coffee crop has been predicted to become threatened by future climate changes and global warming conditions. Yet, the long-term effects of elevated [CO2] on this plant remain to be fully elucidated. In this context, this work aims at linking coffee biochemical responses to environmental changes of [CO2] and temperature on genotypes from the two major producing species, using the photosynthetic metabolism as probe to evaluate the plant acclimation ability. Potted plants from C. arabica cv. IPR 108 and of C. canephora cv. Conilon Clone 153 were grown under environmental controlled conditions, either at 380 or 700 ?L CO2 L-1 air, for 1 year, without water, nutrient or root development restrictions. After that the temperature was gradually increased from 25/20 ºC (day/night) up to 42/34 ºC. The effects of elevated [CO2] and enhanced temperature on the photosynthetic structures were assessed through the characterization of the lipid components of chloroplast membranes, whereas the leaf metabolic performance was evaluated through the thylakoid electron transport rates (involving both photosystem (PS) I and II), and the activities of enzymes (ribulose 1,5-biphosphate carboxylase/oxygenase and ribulose 5-phosphate kinase), as well as through stable isotopes of C and N. The activities of respiratory enzymes (NADH-dependent malate dehydrogenase and pyruvate kinase) were also analyzed. The results pointed for a higher functional status along the experiment in the plants grown under elevated [CO2], with special relevance at 37 and 42ºC in IPR108. These results could be related to the qualitative changes of the membrane lipid matrix that might have helped to preserve suitable membrane fluidity for the membrane bound events (e.g., thylakoid electron transport). The PSs and enzyme data reflect an enhancement of the energetic metabolism (both photosynthesis and respiration), mostly, until 31 ºC for IPR108 and 37 ºC for CL153 at normal [CO2]. Yet, under enhanced [CO2] it was found an increase in the temperature (to 37 ºC) at which maximal values of some parameters in IPR108 (MDH, PSs activities, RuBisCO) were observed, concomitantly with the maintenance of high performance in other parameters when compared to the 380 plants. Under the highest temperature (42 ºC) the enzymes were the most sensitive point, displaying the strongest reductions, irrespective of genotype and [CO2] treatments. The temperature promoted changes in leaf ?13C, irrespective of genotype and [CO2], reflecting a decrease in WUE with heat. The changes in ?15N values may indicate different limitation steps of N assimilation, requiring further investigation. It was concluded that the coffee plants grown under elevated [CO2] apparently showed a better endurance to high temperatures, what is quite relevant in a context of predicted climate changes and global warming scenarios.
650 $aCarbon dioxide
650 $aClimate change
650 $aTemperature
650 $aAclimatação
650 $aCafé
650 $aClima
650 $aCoffea arabica
650 $aDióxido de carbono
650 $aTemperatura
653 $aEstresse térmico
700 1 $aRODRIGUES, A. P.
700 1 $aSEMEDO, J. N.
700 1 $aPAIS, I. P.
700 1 $aMARTINS, L. D.
700 1 $aTOMAZ, M. A.
700 1 $aFORTUNATO, A. S.
700 1 $aPALOS, I.
700 1 $aBATISTA-SANTOS, P.
700 1 $aLEITÃO, A. E.
700 1 $aLOPES. E.
700 1 $aSIMÕES-COSTA, M. C.
700 1 $aGOULÃO, L.
700 1 $aRIBEIRO-BARROS, A. I.
700 1 $aSILVA, M. J.
700 1 $aMAIA, R.
700 1 $aMÁGUAS, C.
700 1 $aREBOREDO, F. H.
700 1 $aPESSOA, M. F.
700 1 $aSANGLARD, L M.
700 1 $aARAÚJO, W. L.
700 1 $aGHINI, R.
700 1 $aSCOTTI-CAMPOS, P.
700 1 $aDaMATTA, F. M.
700 1 $aLIDON, F. C.
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Embrapa Meio Ambiente (CNPMA) |
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