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Registro Completo |
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Biblioteca(s): |
Embrapa Meio Ambiente. |
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Data corrente: |
09/12/2019 |
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Data da última atualização: |
10/12/2019 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
RAKOCEVIC, M.; BATISTA, E. R. |
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Afiliação: |
Miroslava RAKOCEVIC, Unicamp; EUNICE REIS BATISTA, CNPMA. |
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Título: |
Photosynthetic light curve parameters over vertical profile of Coffea arabica plants after five years of FACE experiment. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
In: AGRICULTURE AND CLIMATE CHANGE CONFERENCE, 3., 2019, Budapest. [Abstracts...] Budapest: Elsevier Ltd., 2019. Ref. P073. |
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Idioma: |
Português |
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Conteúdo: |
Trends in climate changes indicate that the air [CO2] will continue to increase. The first plant response to elevated [CO2] (e[CO2]) is the increased photosynthetic rate. Photosynthetic rate dependence on light (A/PAR curves) is characterized by several parameters, often used to determine plant species responses to environment and phenological plasticity. The effects of water supply and phenological stage were expected, with no acclimation after long-term Coffea arabica L. cultivation under e[CO2]. The aim of the study was to determine variations in parameters of A/PAR curves in coffee leaves over a tree vertical profile after long-term cultivation under free-air-CO2-enrichment (FACE) system. The p arameters of A/PAR curves in C. arabica were estimated after five-years cultivation in FACE under two CO2 conditions, actual (a[CO2], ~390?L CO2 L-1) and e[CO2] (~590?L CO2 L-1), in two water regimes (rainfed and irrigation). The A/PAR curves were estimated in two phenological stages (grain formation - February 2016 and fruit maturation - May 2016). The A/PAR responses were determined by varying photosynthetic active radiation (PAR) from 1117 to 0 ?mol photons m?2 s?1 in four 50 cm-thick layers of vertical plant profile. The maximum photosynthesis (Amax), dark respiration (Rd), apparent quantum efficiency (?), and light compensation point (?) generally increased under e[CO2] compared to a[CO2], showing higher values during grain formation than during fruit maturation (Figure 1). The Rd and ? followed the progressive increase by layers only during the grain formation (Figures 1C and 1E). Continuation in e[CO2] stimulation indicated that leaf photosynthesis acclimation did not occur after five-years coffee cultivation under FACE. The lack of progressive increase in Amax, ? and ? over vertical profile indicates leaf plasticity to light availability, especially considering the high Amax of the two lowest layers. The compensation effects of e[CO2] to low water availability were observed in all A/PAR responses. MenosTrends in climate changes indicate that the air [CO2] will continue to increase. The first plant response to elevated [CO2] (e[CO2]) is the increased photosynthetic rate. Photosynthetic rate dependence on light (A/PAR curves) is characterized by several parameters, often used to determine plant species responses to environment and phenological plasticity. The effects of water supply and phenological stage were expected, with no acclimation after long-term Coffea arabica L. cultivation under e[CO2]. The aim of the study was to determine variations in parameters of A/PAR curves in coffee leaves over a tree vertical profile after long-term cultivation under free-air-CO2-enrichment (FACE) system. The p arameters of A/PAR curves in C. arabica were estimated after five-years cultivation in FACE under two CO2 conditions, actual (a[CO2], ~390?L CO2 L-1) and e[CO2] (~590?L CO2 L-1), in two water regimes (rainfed and irrigation). The A/PAR curves were estimated in two phenological stages (grain formation - February 2016 and fruit maturation - May 2016). The A/PAR responses were determined by varying photosynthetic active radiation (PAR) from 1117 to 0 ?mol photons m?2 s?1 in four 50 cm-thick layers of vertical plant profile. The maximum photosynthesis (Amax), dark respiration (Rd), apparent quantum efficiency (?), and light compensation point (?) generally increased under e[CO2] compared to a[CO2], showing higher values during grain formation than during fruit maturation (Figure 1). T... Mostrar Tudo |
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Palavras-Chave: |
Amax; Elevated CO2; FACE experiment. |
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Thesagro: |
Coffea Arábica; Mudança Climática; Seca. |
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Thesaurus Nal: |
Drought; Phenology. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/206488/1/RA-BatistaER-3rdAgricultureClimate...-2019-RefP073.pdf
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Marc: |
LEADER 02762nam a2200217 a 4500
001 2116357
005 2019-12-10
008 2019 bl uuuu u00u1 u #d
100 1 $aRAKOCEVIC, M.
245 $aPhotosynthetic light curve parameters over vertical profile of Coffea arabica plants after five years of FACE experiment.$h[electronic resource]
260 $aIn: AGRICULTURE AND CLIMATE CHANGE CONFERENCE, 3., 2019, Budapest. [Abstracts...] Budapest: Elsevier Ltd., 2019. Ref. P073.$c2019
520 $aTrends in climate changes indicate that the air [CO2] will continue to increase. The first plant response to elevated [CO2] (e[CO2]) is the increased photosynthetic rate. Photosynthetic rate dependence on light (A/PAR curves) is characterized by several parameters, often used to determine plant species responses to environment and phenological plasticity. The effects of water supply and phenological stage were expected, with no acclimation after long-term Coffea arabica L. cultivation under e[CO2]. The aim of the study was to determine variations in parameters of A/PAR curves in coffee leaves over a tree vertical profile after long-term cultivation under free-air-CO2-enrichment (FACE) system. The p arameters of A/PAR curves in C. arabica were estimated after five-years cultivation in FACE under two CO2 conditions, actual (a[CO2], ~390?L CO2 L-1) and e[CO2] (~590?L CO2 L-1), in two water regimes (rainfed and irrigation). The A/PAR curves were estimated in two phenological stages (grain formation - February 2016 and fruit maturation - May 2016). The A/PAR responses were determined by varying photosynthetic active radiation (PAR) from 1117 to 0 ?mol photons m?2 s?1 in four 50 cm-thick layers of vertical plant profile. The maximum photosynthesis (Amax), dark respiration (Rd), apparent quantum efficiency (?), and light compensation point (?) generally increased under e[CO2] compared to a[CO2], showing higher values during grain formation than during fruit maturation (Figure 1). The Rd and ? followed the progressive increase by layers only during the grain formation (Figures 1C and 1E). Continuation in e[CO2] stimulation indicated that leaf photosynthesis acclimation did not occur after five-years coffee cultivation under FACE. The lack of progressive increase in Amax, ? and ? over vertical profile indicates leaf plasticity to light availability, especially considering the high Amax of the two lowest layers. The compensation effects of e[CO2] to low water availability were observed in all A/PAR responses.
650 $aDrought
650 $aPhenology
650 $aCoffea Arábica
650 $aMudança Climática
650 $aSeca
653 $aAmax
653 $aElevated CO2
653 $aFACE experiment
700 1 $aBATISTA, E. R.
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Registro original: |
Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
26/11/2009 |
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Data da última atualização: |
17/05/2022 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SILVA, N. M. M.; ELOY, A. M. X.; FURTADO, J. R.; SANTOS, D. O.; SILVA, N. M.; SOUZA, A. Z. B. de; VALLE, R. V. do; PRIMO, T. S. |
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Afiliação: |
Nadiana Maria Mendes Silva, Pós-graduanda Universidade Estadual Vale do Acaraú - UVA; ANGELA MARIA XAVIER ELOY, CNPC; JOAO RICARDO FURTADO, CNPC; DIONES OLIVEIRA SANTOS, CNPC; Nágila Mendes Silva, Graduanda Universidade Estadual Vale do Acaraú - UVA; Andréa Zilá Barroso de Souza, Pós-graduada UFERSA, Mossoró-RN; Roberta Vianna do Valle, Graduanda da UFBA; Tatiana Santos Primo, Pós-graduanda da Universidade Estadual Vale do Acaraú - UVA. |
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Título: |
Caracterização protéica do plasma seminal de ovinos da raça Morada Nova. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
In: SIMPÓSIO INTERNACIONAL SOBRE CAPRINOS E OVINOS DE CORTE, 4.; FEIRA NACIONAL DO AGRONEGÓCIO DA CAPRINO-OVINOCULTURA DE CORTE, 3., 2009, João Pessoa. Anais... João Pessoa: EMEPA-PB, 2009. 2 f. 1 CD-ROM. |
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Idioma: |
Português |
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Conteúdo: |
A biologia molecular na área da reprodução animal traz novas ferramentas para o melhoramento genético, por meio da utilização de marcadores bioquímicos em líquidos orgânicos que demonstrem o potencial genético de um animal. Logo, a caracterização das proteínas seminais nos permitirá a identificação de como as mesmas se apresentam dentro da raça estudada e relacioná-las a fertilidade. Foram utilizados 14 reprodutores ovinos da raça Morada Nova onde se analisou as bandas protéicas através de eletroforese unidimensional SDS PAGE, em géis de poliacrilamida a 12,5%, corados por Comassie Blue. Quatro bandas protéicas, presentes em 100% das amostras de plasma seminal, foram quantificadas de acordo com o peso molecular: 14 kDa; 20 kDa, 22 kDa e 55 kDa. Neste estudo 12 dos 14 animais apresentaram a banda de peso molecular 66 kDa, identificada por outros autores como a albumina. As proteínas de peso molecular 33, 50, 52 e 115 kDa foram as que apresentaram menor freqüência, aparecendo cada uma em animais diferenciados. Este trabalho nos permitiu visualizarmos a distribuição e variação do peso molecular das bandas protéicas nos diferentes animais da raça Morada Nova. |
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Palavras-Chave: |
Eletroforese unidimensional; Plasma seminal; Raça Morada Nova. |
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Thesagro: |
Ovino; Reprodução Animal; Sêmen. |
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Thesaurus NAL: |
Animal reproduction; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/27632/1/AAC-Caracterizacao-proteica-do-plasma-seminal-de-ovinos-da-raca-Morada-Nova.pdf
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Marc: |
LEADER 02188nam a2200289 a 4500
001 1576247
005 2022-05-17
008 2009 bl uuuu u00u1 u #d
100 1 $aSILVA, N. M. M.
245 $aCaracterização protéica do plasma seminal de ovinos da raça Morada Nova.$h[electronic resource]
260 $aIn: SIMPÓSIO INTERNACIONAL SOBRE CAPRINOS E OVINOS DE CORTE, 4.; FEIRA NACIONAL DO AGRONEGÓCIO DA CAPRINO-OVINOCULTURA DE CORTE, 3., 2009, João Pessoa. Anais... João Pessoa: EMEPA-PB, 2009. 2 f. 1 CD-ROM.$c2009
520 $aA biologia molecular na área da reprodução animal traz novas ferramentas para o melhoramento genético, por meio da utilização de marcadores bioquímicos em líquidos orgânicos que demonstrem o potencial genético de um animal. Logo, a caracterização das proteínas seminais nos permitirá a identificação de como as mesmas se apresentam dentro da raça estudada e relacioná-las a fertilidade. Foram utilizados 14 reprodutores ovinos da raça Morada Nova onde se analisou as bandas protéicas através de eletroforese unidimensional SDS PAGE, em géis de poliacrilamida a 12,5%, corados por Comassie Blue. Quatro bandas protéicas, presentes em 100% das amostras de plasma seminal, foram quantificadas de acordo com o peso molecular: 14 kDa; 20 kDa, 22 kDa e 55 kDa. Neste estudo 12 dos 14 animais apresentaram a banda de peso molecular 66 kDa, identificada por outros autores como a albumina. As proteínas de peso molecular 33, 50, 52 e 115 kDa foram as que apresentaram menor freqüência, aparecendo cada uma em animais diferenciados. Este trabalho nos permitiu visualizarmos a distribuição e variação do peso molecular das bandas protéicas nos diferentes animais da raça Morada Nova.
650 $aAnimal reproduction
650 $aSheep
650 $aOvino
650 $aReprodução Animal
650 $aSêmen
653 $aEletroforese unidimensional
653 $aPlasma seminal
653 $aRaça Morada Nova
700 1 $aELOY, A. M. X.
700 1 $aFURTADO, J. R.
700 1 $aSANTOS, D. O.
700 1 $aSILVA, N. M.
700 1 $aSOUZA, A. Z. B. de
700 1 $aVALLE, R. V. do
700 1 $aPRIMO, T. S.
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Embrapa Caprinos e Ovinos (CNPC) |
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