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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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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Biblioteca |
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Cutter |
Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
20/07/2016 |
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Data da última atualização: |
14/04/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 2 |
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Autoria: |
OLIVEIRA-PAIVA, C. A.; CALAZANS, G. M.; FIGUEIREDO, J. E. F.; MENDES, S. M.; GOMES, E. A.; MARUCCI, R. C.; VIANA, P. A.; SELDIN, L.; MARRIEL, I. E. |
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Afiliação: |
CHRISTIANE ABREU DE OLIVEIRA PAIVA, CNPMS; GIOVANNA MOURA CALAZANS, UNIFEMM; JOSE EDSON FONTES FIGUEIREDO, CNPMS; SIMONE MARTINS MENDES, CNPMS; ELIANE APARECIDA GOMES, CNPMS; ROSÂNGELA CRISTINA MARUCCI, UFLA; PAULO AFONSO VIANA, CNPMS; LUCY SELDIN, UFRJ; IVANILDO EVODIO MARRIEL, CNPMS. |
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Título: |
Microbial activities in soils cultivated with transgenic maize expressing Bacillus thuringiensis Cry1 Ab and Cry1 F genes. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Revista Brasileira de Milho e Sorgo, Sete Lagoas, v. 14, n. 3, p. 409-419, 2015. |
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DOI: |
10.18512/1980-6477/rbms.v14n3p409-419 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT: The Brazilian acreage planted with genetically modified (GM) maize expressing Cry genes derived from the soil bacterium Bacillus thuringiensis (Bt) has increased from 4.9% (5.0 million hectares) of total area planted in 2009 to 81.4 % (15.83 million hectares) in 2014. However, studies on the effects of Bt-maize technology on non-target microorganisms in tropical soils are incipient. Thus, a field experiment was performed to assess the physiological activity of bacterial communities associated with Bt-maize genotypes planted in tropical Dark Red Latosol of Cerrado and lowland hydromorphic soil with localized flooding. A non-transgenic hybrid (30F35) and its transgenic counterparts 30F35Y (Cry1Ab) and 30F35H (Cry1F) were planted in a randomized block design with four replicates. Rhizosphere and non-rhizosphere soils collected from plants in the flowering stage were assayed for metabolic diversity with Biolog and enzyme activities of urease, arginase, acid phosphatase and alkaline phosphatase. Rhizosphere soil showed higher microbial activity and no significant differences were detected among genotypes in all the biochemical soil parameters evaluated. The results suggested that Bt-maize does not negatively impact the microbial community of tropical soils. RESUMO: A área brasileira plantada com milho geneticamente modificado (GM) expressando genes Cry derivados da bactéria do solo Bacillus thuringiensis (Bt) aumentou de 4,9% (5,0 milhões de hectares) da área total plantada em 2009 para 81,4% (15,83 milhões de hectares) em 2014. No entanto, estudos sobre os efeitos da tecnologia Bt-milho sobre microrganismos não alvo em solos tropicais são incipientes. Dessa forma, foi realizado experimento de campo para avaliar a atividade fisiológica das comunidades bacterianas associadas com genótipos de milho Bt plantados em Latossolo Vermelho Escuro do Cerrado e solos hidromórficos da planície com inundações localizadas. Um híbrido não transgênico (30F35) e seus homólogos transgênicos 30F35Y (Cry1Ab) e 30F35H (Cry1F) foram plantados com delineamento de blocos casualizados com quatro repetições. Solos rizosféricos e não rizosféricos coletados de plantas no estádio de florescimento foram submetidos aos ensaios de diversidade metabólica com Biolog e atividades enzimáticas de urease, arginase, fosfatase ácida e fosfatase alcalina. Solos rizosféricos apresentaram maior atividade microbiana e não foram detectadas diferenças significativas entre os genótipos em todos os parâmetros bioquímicos e de solo avaliados. Os resultados sugerem que o milho Bt não afeta negativamente a comunidade microbiana dos solos tropicais. MenosABSTRACT: The Brazilian acreage planted with genetically modified (GM) maize expressing Cry genes derived from the soil bacterium Bacillus thuringiensis (Bt) has increased from 4.9% (5.0 million hectares) of total area planted in 2009 to 81.4 % (15.83 million hectares) in 2014. However, studies on the effects of Bt-maize technology on non-target microorganisms in tropical soils are incipient. Thus, a field experiment was performed to assess the physiological activity of bacterial communities associated with Bt-maize genotypes planted in tropical Dark Red Latosol of Cerrado and lowland hydromorphic soil with localized flooding. A non-transgenic hybrid (30F35) and its transgenic counterparts 30F35Y (Cry1Ab) and 30F35H (Cry1F) were planted in a randomized block design with four replicates. Rhizosphere and non-rhizosphere soils collected from plants in the flowering stage were assayed for metabolic diversity with Biolog and enzyme activities of urease, arginase, acid phosphatase and alkaline phosphatase. Rhizosphere soil showed higher microbial activity and no significant differences were detected among genotypes in all the biochemical soil parameters evaluated. The results suggested that Bt-maize does not negatively impact the microbial community of tropical soils. RESUMO: A área brasileira plantada com milho geneticamente modificado (GM) expressando genes Cry derivados da bactéria do solo Bacillus thuringiensis (Bt) aumentou de 4,9% (5,0 milhões de hectares) da área total plan... Mostrar Tudo |
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Palavras-Chave: |
Bioindicador; Diversidade funciona; Milho Bt; Organismo não alvo; Qualidade do solo. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/145624/1/Microbial-activities.pdf
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Marc: |
LEADER 03607naa a2200289 a 4500
001 2049248
005 2021-04-14
008 2015 bl uuuu u00u1 u #d
024 7 $a10.18512/1980-6477/rbms.v14n3p409-419$2DOI
100 1 $aOLIVEIRA-PAIVA, C. A.
245 $aMicrobial activities in soils cultivated with transgenic maize expressing Bacillus thuringiensis Cry1 Ab and Cry1 F genes.$h[electronic resource]
260 $c2015
520 $aABSTRACT: The Brazilian acreage planted with genetically modified (GM) maize expressing Cry genes derived from the soil bacterium Bacillus thuringiensis (Bt) has increased from 4.9% (5.0 million hectares) of total area planted in 2009 to 81.4 % (15.83 million hectares) in 2014. However, studies on the effects of Bt-maize technology on non-target microorganisms in tropical soils are incipient. Thus, a field experiment was performed to assess the physiological activity of bacterial communities associated with Bt-maize genotypes planted in tropical Dark Red Latosol of Cerrado and lowland hydromorphic soil with localized flooding. A non-transgenic hybrid (30F35) and its transgenic counterparts 30F35Y (Cry1Ab) and 30F35H (Cry1F) were planted in a randomized block design with four replicates. Rhizosphere and non-rhizosphere soils collected from plants in the flowering stage were assayed for metabolic diversity with Biolog and enzyme activities of urease, arginase, acid phosphatase and alkaline phosphatase. Rhizosphere soil showed higher microbial activity and no significant differences were detected among genotypes in all the biochemical soil parameters evaluated. The results suggested that Bt-maize does not negatively impact the microbial community of tropical soils. RESUMO: A área brasileira plantada com milho geneticamente modificado (GM) expressando genes Cry derivados da bactéria do solo Bacillus thuringiensis (Bt) aumentou de 4,9% (5,0 milhões de hectares) da área total plantada em 2009 para 81,4% (15,83 milhões de hectares) em 2014. No entanto, estudos sobre os efeitos da tecnologia Bt-milho sobre microrganismos não alvo em solos tropicais são incipientes. Dessa forma, foi realizado experimento de campo para avaliar a atividade fisiológica das comunidades bacterianas associadas com genótipos de milho Bt plantados em Latossolo Vermelho Escuro do Cerrado e solos hidromórficos da planície com inundações localizadas. Um híbrido não transgênico (30F35) e seus homólogos transgênicos 30F35Y (Cry1Ab) e 30F35H (Cry1F) foram plantados com delineamento de blocos casualizados com quatro repetições. Solos rizosféricos e não rizosféricos coletados de plantas no estádio de florescimento foram submetidos aos ensaios de diversidade metabólica com Biolog e atividades enzimáticas de urease, arginase, fosfatase ácida e fosfatase alcalina. Solos rizosféricos apresentaram maior atividade microbiana e não foram detectadas diferenças significativas entre os genótipos em todos os parâmetros bioquímicos e de solo avaliados. Os resultados sugerem que o milho Bt não afeta negativamente a comunidade microbiana dos solos tropicais.
653 $aBioindicador
653 $aDiversidade funciona
653 $aMilho Bt
653 $aOrganismo não alvo
653 $aQualidade do solo
700 1 $aCALAZANS, G. M.
700 1 $aFIGUEIREDO, J. E. F.
700 1 $aMENDES, S. M.
700 1 $aGOMES, E. A.
700 1 $aMARUCCI, R. C.
700 1 $aVIANA, P. A.
700 1 $aSELDIN, L.
700 1 $aMARRIEL, I. E.
773 $tRevista Brasileira de Milho e Sorgo, Sete Lagoas$gv. 14, n. 3, p. 409-419, 2015.
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