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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
02/12/2015 |
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Data da última atualização: |
27/05/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
ROWLAND, L.; COSTA, A. C. L. da; GALBRAITH, D. R.; OLIVEIRA, R. S.; BINKS, O. J.; OLIVEIRA, A. A. R.; PULLEN, A. M.; DOUGHTY, C. E.; METCALFE, D. B.; VASCONCELOS, S. S.; FERREIRA, L. V.; MALHI, Y.; GRACE, J.; MENCUCCINI, M.; MEIR, P. |
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Afiliação: |
L. Rowland, University of Edinburgh; A. C. L. da Costa, UFPA; D. R. Galbraith, University of Leeds; R. S. Oliveira, UNICAMP; O. J. Binks, University of Edinburgh; A. A. R. Oliveira, UFPA; A. M. Pullen, University of Cambridge; C. E. Doughty, University of Oxford; D. B. Metcalfe, Lund University; STEEL SILVA VASCONCELOS, CPATU; L. V. Ferreira, MPEG; Y. Malhi, University of Oxford; J. Grace, University of Edinburgh; M. Mencuccini, University of Edinburgh / ICREA at CREAF; P. Meir, University of Edinburgh / Australian National University. |
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Título: |
Death from drought in tropical forests is triggered by hydraulics not carbon starvation. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Nature, v. 528, N. 7580, p. 119-122, 3 Dec. 2015. |
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DOI: |
10.1038/nature15539 |
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Idioma: |
Inglês |
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Conteúdo: |
Drought threatens tropical rainforests over seasonal to decadal timescales1, 2, 3, 4, but the drivers of tree mortality following drought remain poorly understood5, 6. It has been suggested that reduced availability of non-structural carbohydrates (NSC) critically increases mortality risk through insufficient carbon supply to metabolism (?carbon starvation?)7, 8. However, little is known about how NSC stores are affected by drought, especially over the long term, and whether they are more important than hydraulic processes in determining drought-induced mortality. Using data from the world?s longest-running experimental drought study in tropical rainforest (in the Brazilian Amazon), we test whether carbon starvation or deterioration of the water-conducting pathways from soil to leaf trigger tree mortality. Biomass loss from mortality in the experimentally droughted forest increased substantially after >10 years of reduced soil moisture availability. The mortality signal was dominated by the death of large trees, which were at a much greater risk of hydraulic deterioration than smaller trees. However, we find no evidence that the droughted trees suffered carbon starvation, as their NSC concentrations were similar to those of non-droughted trees, and growth rates did not decline in either living or dying trees. Our results indicate that hydraulics, rather than carbon starvation, triggers tree death from drought in tropical rainforest. |
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Palavras-Chave: |
Ecossistema ecológico; Morte. |
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Thesagro: |
Árvore; Floresta Tropical; Mudança Climática; Seca. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02489naa a2200373 a 4500
001 2030428
005 2022-05-27
008 2015 bl uuuu u00u1 u #d
024 7 $a10.1038/nature15539$2DOI
100 1 $aROWLAND, L.
245 $aDeath from drought in tropical forests is triggered by hydraulics not carbon starvation.$h[electronic resource]
260 $c2015
520 $aDrought threatens tropical rainforests over seasonal to decadal timescales1, 2, 3, 4, but the drivers of tree mortality following drought remain poorly understood5, 6. It has been suggested that reduced availability of non-structural carbohydrates (NSC) critically increases mortality risk through insufficient carbon supply to metabolism (?carbon starvation?)7, 8. However, little is known about how NSC stores are affected by drought, especially over the long term, and whether they are more important than hydraulic processes in determining drought-induced mortality. Using data from the world?s longest-running experimental drought study in tropical rainforest (in the Brazilian Amazon), we test whether carbon starvation or deterioration of the water-conducting pathways from soil to leaf trigger tree mortality. Biomass loss from mortality in the experimentally droughted forest increased substantially after >10 years of reduced soil moisture availability. The mortality signal was dominated by the death of large trees, which were at a much greater risk of hydraulic deterioration than smaller trees. However, we find no evidence that the droughted trees suffered carbon starvation, as their NSC concentrations were similar to those of non-droughted trees, and growth rates did not decline in either living or dying trees. Our results indicate that hydraulics, rather than carbon starvation, triggers tree death from drought in tropical rainforest.
650 $aÁrvore
650 $aFloresta Tropical
650 $aMudança Climática
650 $aSeca
653 $aEcossistema ecológico
653 $aMorte
700 1 $aCOSTA, A. C. L. da
700 1 $aGALBRAITH, D. R.
700 1 $aOLIVEIRA, R. S.
700 1 $aBINKS, O. J.
700 1 $aOLIVEIRA, A. A. R.
700 1 $aPULLEN, A. M.
700 1 $aDOUGHTY, C. E.
700 1 $aMETCALFE, D. B.
700 1 $aVASCONCELOS, S. S.
700 1 $aFERREIRA, L. V.
700 1 $aMALHI, Y.
700 1 $aGRACE, J.
700 1 $aMENCUCCINI, M.
700 1 $aMEIR, P.
773 $tNature$gv. 528, N. 7580, p. 119-122, 3 Dec. 2015.
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Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
03/09/2021 |
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Data da última atualização: |
06/12/2021 |
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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: |
BENTO, J. A. C.; BASSINELLO, P. Z.; CARVALHO, R. N.; SOUZA NETO, M. A. de; CALIARI, M.; SOARES JÚNIOR, M. S. |
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Afiliação: |
JULIANA APARECIDA CORREIA BENTO, UFG; PRISCILA ZACZUK BASSINELLO, CNPAF; ROSANGELA NUNES CARVALHO, CNPAF; MENANDES ALVES DE SOUZA NETO, UFG; MÁRCIO CALIARI, UFG; MANOEL SOARES SOARES JÚNIOR, UFG. |
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Título: |
Functional and pasting properties of colorful bean (Phaseolus vulgaris L) flours: Influence of the cooking method. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of Food Processing and Preservation, v. 45, n. 11, e15899, Nov. 2021. |
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ISSN: |
1745-4549 |
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DOI: |
https://doi.org/10.1111/jfpp.15899 |
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Idioma: |
Inglês |
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Conteúdo: |
This research aimed to verify how the preparation method affects the functional and technological properties of colorful bean flours to expand their potential for application in various food products. The flour of the cultivar BRS Embaixador (dark red kidney bean) presented the highest total starch content (40.5 g.100 g-1), and the lowest content of resistant starch (3.2 g.100 g-1) and protein (20.9 g.100 g-1), while Jalo Precoce (yellow bean) showed the highest amount of resistant starch (24.3 g.100-1) and protein (25.8 g.100-1). The cooked flours compared with the raw ones presented a reduction in water solubility index, peak viscosity, final viscosity, breakdown, seatback, hardness, adhesiveness, resilience, and emulsification capacity. These results were more evident in flours from presoaked and cooked beans once they had presented a significantly higher intensity of the starch pre-gelatinization. Finally, both preparation processes (presoaked cooked beans or unsoaked cooked beans) improved the technological characteristics of colorful bean flours. |
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Thesagro: |
Cocção; Cor; Farinha; Feijão; Phaseolus Vulgaris; Propriedade Organoléptica; Proteína. |
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Thesaurus NAL: |
Bean flour; Beans; Color; Cooked foods; Cooking; Food preparation; Functional properties; Gelatinization; Pasting properties. |
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Categoria do assunto: |
Q Alimentos e Nutrição Humana |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/228576/1/jfpp-2021.pdf
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Marc: |
LEADER 02217naa a2200397 a 4500
001 2134028
005 2021-12-06
008 2021 bl uuuu u00u1 u #d
022 $a1745-4549
024 7 $ahttps://doi.org/10.1111/jfpp.15899$2DOI
100 1 $aBENTO, J. A. C.
245 $aFunctional and pasting properties of colorful bean (Phaseolus vulgaris L) flours$bInfluence of the cooking method.$h[electronic resource]
260 $c2021
520 $aThis research aimed to verify how the preparation method affects the functional and technological properties of colorful bean flours to expand their potential for application in various food products. The flour of the cultivar BRS Embaixador (dark red kidney bean) presented the highest total starch content (40.5 g.100 g-1), and the lowest content of resistant starch (3.2 g.100 g-1) and protein (20.9 g.100 g-1), while Jalo Precoce (yellow bean) showed the highest amount of resistant starch (24.3 g.100-1) and protein (25.8 g.100-1). The cooked flours compared with the raw ones presented a reduction in water solubility index, peak viscosity, final viscosity, breakdown, seatback, hardness, adhesiveness, resilience, and emulsification capacity. These results were more evident in flours from presoaked and cooked beans once they had presented a significantly higher intensity of the starch pre-gelatinization. Finally, both preparation processes (presoaked cooked beans or unsoaked cooked beans) improved the technological characteristics of colorful bean flours.
650 $aBean flour
650 $aBeans
650 $aColor
650 $aCooked foods
650 $aCooking
650 $aFood preparation
650 $aFunctional properties
650 $aGelatinization
650 $aPasting properties
650 $aCocção
650 $aCor
650 $aFarinha
650 $aFeijão
650 $aPhaseolus Vulgaris
650 $aPropriedade Organoléptica
650 $aProteína
700 1 $aBASSINELLO, P. Z.
700 1 $aCARVALHO, R. N.
700 1 $aSOUZA NETO, M. A. de
700 1 $aCALIARI, M.
700 1 $aSOARES JÚNIOR, M. S.
773 $tJournal of Food Processing and Preservation$gv. 45, n. 11, e15899, Nov. 2021.
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Embrapa Arroz e Feijão (CNPAF) |
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