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Registro Completo |
Biblioteca(s): |
Embrapa Amazônia Oriental. |
Data corrente: |
17/11/2020 |
Data da última atualização: |
11/01/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ROWLAND, L.; COSTA, A. C. L. da; OLIVEIRA, R. S.; BITTENCOURT, P. R. L.; GILES, A. L.; COUGHLIN, I.; COSTA, P. de B.; BARTHOLOMEW, D.; DOMINGUES, T. F.; MIATTO, R. C.; FERREIRA, L. V.; VASCONCELOS, S. S.; S. JUNIOR, J. A.; OLIVEIRA, A. A. R.; MENCUCCINI, M.; MEIR, P. |
Afiliação: |
Lucy Rowland, University of Exeter; Antonio C. L. da Costa, UFPA / MPEG; Rafael S. Oliveira, UNICAMP; Paulo R. L. Bittencourt, UNICAMP / University of Exeter; André L. Giles, UNICAMP; Ingrid Coughlin, USP / Australian National University; Patricia de Britto Costa, UNICAMP; David Bartholomew, University of Exeter; Tomas F. Domingues, USP; Raquel C. Miatto, USP; Leandro V. Ferreira, MPEG; STEEL SILVA VASCONCELOS, CPATU; Joao A. S. Junior, UFPA; Alex A. R. Oliveira, Australian National University; Maurizio Mencuccini, CREAF, Campus UAB / ICREA; Patrick Meir, USP / University of Edinburgh. |
Título: |
The response of carbon assimilation and storage to long-term drought in tropical trees is dependent on light availability. |
Ano de publicação: |
2021 |
Fonte/Imprenta: |
Functional Ecology, v. 35, n. 1, p. 43-53, Jan. 2021. |
DOI: |
https://doi.org/10.1111/1365-2435.13689 |
Idioma: |
Inglês |
Notas: |
Publicado online em 29 set. 2020. |
Conteúdo: |
Whether tropical trees acclimate to long‐term drought stress remains unclear. This uncertainty is amplified if drought stress is accompanied by changes in other drivers such as the increases in canopy light exposure that might be induced by tree mortality or other disturbances. Photosynthetic capacity, leaf respiration, non‐structural carbohydrate (NSC) storage and stomatal conductance were measured on 162 trees at the world's longest running (15 years) tropical forest drought experiment. We test whether surviving trees have altered strategies for carbon storage and carbon use in the drier and elevated light conditions present following drought‐related tree mortality. Relative to control trees, the surviving trees experiencing the drought treatment showed functional responses including: (a) moderately reduced photosynthetic capacity; (b) increased total leaf NSC; and (c) a switch from starch to soluble sugars as the main store of branch NSC. This contrasts with earlier findings at this experiment of no change in photosynthetic capacity or NSC storage. The changes detected here only occurred in the subset of drought‐stressed trees with canopies exposed to high radiation and were absent in trees with less‐exposed canopies and also in the community average. In contrast to previous results acquired through less intensive species sampling from this experiment, we also observe no species‐average drought‐induced change in leaf respiration. Our results suggest that long‐term responses to drought stress are strongly influenced by a tree's full‐canopy light environment and therefore that disturbance‐induced changes in stand density and dynamics are likely to substantially impact tropical forest responses to climate change. We also demonstrate that, while challenging, intensive sampling is essential in tropical forests to avoid sampling biases caused by limited taxonomic coverage. MenosWhether tropical trees acclimate to long‐term drought stress remains unclear. This uncertainty is amplified if drought stress is accompanied by changes in other drivers such as the increases in canopy light exposure that might be induced by tree mortality or other disturbances. Photosynthetic capacity, leaf respiration, non‐structural carbohydrate (NSC) storage and stomatal conductance were measured on 162 trees at the world's longest running (15 years) tropical forest drought experiment. We test whether surviving trees have altered strategies for carbon storage and carbon use in the drier and elevated light conditions present following drought‐related tree mortality. Relative to control trees, the surviving trees experiencing the drought treatment showed functional responses including: (a) moderately reduced photosynthetic capacity; (b) increased total leaf NSC; and (c) a switch from starch to soluble sugars as the main store of branch NSC. This contrasts with earlier findings at this experiment of no change in photosynthetic capacity or NSC storage. The changes detected here only occurred in the subset of drought‐stressed trees with canopies exposed to high radiation and were absent in trees with less‐exposed canopies and also in the community average. In contrast to previous results acquired through less intensive species sampling from this experiment, we also observe no species‐average drought‐induced change in leaf respiration. ... Mostrar Tudo |
Thesagro: |
Carboidrato; Floresta Tropical; Fotossíntese; Respiração; Seca. |
Thesaurus Nal: |
Carbohydrates; Drought; Light; Photosynthesis; Stomatal conductance; Tropical forests. |
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/220103/1/1365-2435.13689-2021.pdf
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Marc: |
LEADER 03293naa a2200457 a 4500 001 2126671 005 2021-01-11 008 2021 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1111/1365-2435.13689$2DOI 100 1 $aROWLAND, L. 245 $aThe response of carbon assimilation and storage to long-term drought in tropical trees is dependent on light availability.$h[electronic resource] 260 $c2021 500 $aPublicado online em 29 set. 2020. 520 $aWhether tropical trees acclimate to long‐term drought stress remains unclear. This uncertainty is amplified if drought stress is accompanied by changes in other drivers such as the increases in canopy light exposure that might be induced by tree mortality or other disturbances. Photosynthetic capacity, leaf respiration, non‐structural carbohydrate (NSC) storage and stomatal conductance were measured on 162 trees at the world's longest running (15 years) tropical forest drought experiment. We test whether surviving trees have altered strategies for carbon storage and carbon use in the drier and elevated light conditions present following drought‐related tree mortality. Relative to control trees, the surviving trees experiencing the drought treatment showed functional responses including: (a) moderately reduced photosynthetic capacity; (b) increased total leaf NSC; and (c) a switch from starch to soluble sugars as the main store of branch NSC. This contrasts with earlier findings at this experiment of no change in photosynthetic capacity or NSC storage. The changes detected here only occurred in the subset of drought‐stressed trees with canopies exposed to high radiation and were absent in trees with less‐exposed canopies and also in the community average. In contrast to previous results acquired through less intensive species sampling from this experiment, we also observe no species‐average drought‐induced change in leaf respiration. Our results suggest that long‐term responses to drought stress are strongly influenced by a tree's full‐canopy light environment and therefore that disturbance‐induced changes in stand density and dynamics are likely to substantially impact tropical forest responses to climate change. We also demonstrate that, while challenging, intensive sampling is essential in tropical forests to avoid sampling biases caused by limited taxonomic coverage. 650 $aCarbohydrates 650 $aDrought 650 $aLight 650 $aPhotosynthesis 650 $aStomatal conductance 650 $aTropical forests 650 $aCarboidrato 650 $aFloresta Tropical 650 $aFotossíntese 650 $aRespiração 650 $aSeca 700 1 $aCOSTA, A. C. L. da 700 1 $aOLIVEIRA, R. S. 700 1 $aBITTENCOURT, P. R. L. 700 1 $aGILES, A. L. 700 1 $aCOUGHLIN, I. 700 1 $aCOSTA, P. de B. 700 1 $aBARTHOLOMEW, D. 700 1 $aDOMINGUES, T. F. 700 1 $aMIATTO, R. C. 700 1 $aFERREIRA, L. V. 700 1 $aVASCONCELOS, S. S. 700 1 $aS. JUNIOR, J. A. 700 1 $aOLIVEIRA, A. A. R. 700 1 $aMENCUCCINI, M. 700 1 $aMEIR, P. 773 $tFunctional Ecology$gv. 35, n. 1, p. 43-53, Jan. 2021.
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Embrapa Amazônia Oriental (CPATU) |
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Registro Completo
Biblioteca(s): |
Embrapa Agroindústria Tropical. |
Data corrente: |
17/01/2018 |
Data da última atualização: |
18/01/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
REIS, C. L. B.; SILVA, L. M. A. e; RODRIGUES, T. H. S.; FÉLIX, A. K. N.; SANTIAGO-AGUIAR, R. S. de; CANUTO, K. M.; ROCHA, M. V. P. |
Afiliação: |
Carla Luzia Borges Reis, Universidade Federal do Ceará, Departamento de Engenharia Química.; LORENA MARA ALEXANDRE E SILVA, CNPAT; TIGRESSA HELENA SOARES RODRIGUES, CNPAT; Anne Kamily Nogueira Félix, Universidade Federal do Ceará, Departamento de Engenharia Química.; Rílvia Saraiva de Santiago-Aguiar, Universidade Federal do Ceará, Departamento de Engenharia Química.; KIRLEY MARQUES CANUTO, CNPAT; Maria Valderez Ponte Rocha, Universidade Federal do Ceará, Departamento de Engenharia Química. |
Título: |
Pretreatment of cashew apple bagasse using protic ionic liquids: Enhanced enzymatic hydrolysis. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Bioresource Technology, v. 224, p. 694-701, 2017. |
Idioma: |
Inglês |
Palavras-Chave: |
Bagasseira de maçã de caju; Carboidratos; Cashew apple bagasse; Cellulose digestibility; Digestibilidade de celulose; Líquido iónico prótico; Protic ionic liquid; Reuse; Reuso. |
Thesaurus NAL: |
Carbohydrates. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00929naa a2200301 a 4500 001 2085624 005 2018-01-18 008 2017 bl uuuu u00u1 u #d 100 1 $aREIS, C. L. B. 245 $aPretreatment of cashew apple bagasse using protic ionic liquids$bEnhanced enzymatic hydrolysis.$h[electronic resource] 260 $c2017 650 $aCarbohydrates 653 $aBagasseira de maçã de caju 653 $aCarboidratos 653 $aCashew apple bagasse 653 $aCellulose digestibility 653 $aDigestibilidade de celulose 653 $aLíquido iónico prótico 653 $aProtic ionic liquid 653 $aReuse 653 $aReuso 700 1 $aSILVA, L. M. A. e 700 1 $aRODRIGUES, T. H. S. 700 1 $aFÉLIX, A. K. N. 700 1 $aSANTIAGO-AGUIAR, R. S. de 700 1 $aCANUTO, K. M. 700 1 $aROCHA, M. V. P. 773 $tBioresource Technology$gv. 224, p. 694-701, 2017.
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