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Registro Completo |
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
29/01/2018 |
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Data da última atualização: |
29/01/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, A. da S. dos; FRADE, C. |
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Afiliação: |
AMAURY DA SILVA DOS SANTOS, CPATC; CARMEN FRADE, UFRRJ. |
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Título: |
Texto síntese: roda de diálogo SNEA 9. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Cadernos de Agroecologia, v. 12, n. 1, jul. 2017. |
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Idioma: |
Português |
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Thesagro: |
Pesquisa social; Políticas públicas. |
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Thesaurus Nal: |
Public policy. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/171789/1/Vista-do-Texto-si769ntese-Roda-de-Dia769logo-SNEA-09.pdf
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Marc: |
LEADER 00451naa a2200157 a 4500
001 2086566
005 2018-01-29
008 2017 bl uuuu u00u1 u #d
100 1 $aSANTOS, A. da S. dos
245 $aTexto síntese$broda de diálogo SNEA 9.$h[electronic resource]
260 $c2017
650 $aPublic policy
650 $aPesquisa social
650 $aPolíticas públicas
700 1 $aFRADE, C.
773 $tCadernos de Agroecologia$gv. 12, n. 1, jul. 2017.
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Embrapa Tabuleiros Costeiros (CPATC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
30/03/2010 |
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Data da última atualização: |
16/11/2022 |
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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: |
COSTA, M. A.; PINHEIRO, H. A.; SHIMIZU, E. S. C.; FONSECA, F. T.; SANTOS FILHO, B. G. dos; MORAES, F. K. C.; FIGUEIREDO, D. M. de. |
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Afiliação: |
MARCELLE AUDAY COSTA, UFRA; HUGO ALVES PINHEIRO, UFRA; ELIZABETH SANTOS CORDEIRO SHIMIZU, CPATU; FELIPE TAMEIRÃO FONSECA, UFRA; BENEDITO GOMES DOS SANTOS FILHO, UFRA; FABRICIA KELLY CABRAL MORAES, UFRA; DIEGO MOREIRA DE FIGUEIREDO, UFRA. |
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Título: |
Lipid peroxidation, chloroplastic pigments and antioxidant strategies in carapa guianensis (Aubl.) subjected to water-deficit and short-term rewetting. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Trees, v. 24, n. 2, p. 275-283, Apr. 2010. |
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DOI: |
10.1007/s00468-009-0397-x |
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Idioma: |
Inglês |
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Conteúdo: |
The effects of drought on membrane lipids and leaf pigments and the ability of andiroba (Carapa guianensis Aubl.) plants to attenuate oxidative damage through antioxidant enzymes or adjusting carotenoids and glycinebetaine (GB) were examined. Assessments were performed when pre-dawn leaf water potential (?pd) of water-stressed plants reached ?1.35 and ?3.21 MPa (15 and 27 days after withholding irrigation) and 12 h after resuming watering (short-term rewetting, day 28). Oxidative damages to lipids were evident on day 15, in which drought caused an increase of 47% in malondialdehyde (MDA) content. On day 27, MDA content did not differ between treatments. The activity of superoxide dismutase remained unchanged over experimental period, while significant increases in the ascorbate peroxidase (APX, 110%) and catalase (CAT, 50%) activities were observed only on day 27. GB content was 62% (day 15) and 112% (day 27) higher in water-stressed plants than in control. Regardless of ?pd, both chlorophyll (Chl) a, Chl b and total carotenoids remained unchanged between well-watered and water-stressed plants, indicating that drought did not result in degradation of leaflet pigments. On day 28, ?pd of water-stressed plants increased near to control plants and both activities of APX and CAT did not differ between treatments. Altogether, adjustments in APX and CAT activity and in the GB content were efficient strategies to prevent expressive oxidative damages in water-stressed andiroba plants. |
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Palavras-Chave: |
Enzimas antioxidantes. |
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Thesagro: |
Andiroba. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02256naa a2200229 a 4500
001 1662775
005 2022-11-16
008 2010 bl uuuu u00u1 u #d
024 7 $a10.1007/s00468-009-0397-x$2DOI
100 1 $aCOSTA, M. A.
245 $aLipid peroxidation, chloroplastic pigments and antioxidant strategies in carapa guianensis (Aubl.) subjected to water-deficit and short-term rewetting.$h[electronic resource]
260 $c2010
520 $aThe effects of drought on membrane lipids and leaf pigments and the ability of andiroba (Carapa guianensis Aubl.) plants to attenuate oxidative damage through antioxidant enzymes or adjusting carotenoids and glycinebetaine (GB) were examined. Assessments were performed when pre-dawn leaf water potential (?pd) of water-stressed plants reached ?1.35 and ?3.21 MPa (15 and 27 days after withholding irrigation) and 12 h after resuming watering (short-term rewetting, day 28). Oxidative damages to lipids were evident on day 15, in which drought caused an increase of 47% in malondialdehyde (MDA) content. On day 27, MDA content did not differ between treatments. The activity of superoxide dismutase remained unchanged over experimental period, while significant increases in the ascorbate peroxidase (APX, 110%) and catalase (CAT, 50%) activities were observed only on day 27. GB content was 62% (day 15) and 112% (day 27) higher in water-stressed plants than in control. Regardless of ?pd, both chlorophyll (Chl) a, Chl b and total carotenoids remained unchanged between well-watered and water-stressed plants, indicating that drought did not result in degradation of leaflet pigments. On day 28, ?pd of water-stressed plants increased near to control plants and both activities of APX and CAT did not differ between treatments. Altogether, adjustments in APX and CAT activity and in the GB content were efficient strategies to prevent expressive oxidative damages in water-stressed andiroba plants.
650 $aAndiroba
653 $aEnzimas antioxidantes
700 1 $aPINHEIRO, H. A.
700 1 $aSHIMIZU, E. S. C.
700 1 $aFONSECA, F. T.
700 1 $aSANTOS FILHO, B. G. dos
700 1 $aMORAES, F. K. C.
700 1 $aFIGUEIREDO, D. M. de
773 $tTrees$gv. 24, n. 2, p. 275-283, Apr. 2010.
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