| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Amazônia Oriental. |
|
Data corrente: |
24/04/2017 |
|
Data da última atualização: |
22/12/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
BINKS, O.; MEIR, P.; ROWLAND, L.; COSTA, A. C. L. da; VASCONCELOS, S. S.; OLIVEIRA, A. A. R. de; FERREIRA, L.; MENCUCCINI, M. |
|
Afiliação: |
Oliver Binks, University of Edinburgh; Patrick Meir, University of Edinburgh / Australian National University; Lucy Rowland, University of Exeter; Antonio Carlos Lola da Costa, UFPA; STEEL SILVA VASCONCELOS, CPATU; Alex Antonio Ribeiro de Oliveira, UFPA; Leandro Ferreira, MPEG; Maurizio Mencuccini, University of Edinburgh / ICREA at CREAF. |
|
Título: |
Limited acclimation in leaf anatomy to experimental drought in tropical rainforest trees. |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
Tree Physiology, v. 36, n. 12, p. 1550-1561, 2016. |
|
DOI: |
10.1093/treephys/tpw078 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Dry periods are predicted to become more frequent and severe in the future in some parts of the tropics, including Amazonia, potentially causing reduced productivity, higher tree mortality and increased emissions of stored carbon. Using a long-term (12 year) through-fall exclusion (TFE) experiment in the tropics, we test the hypothesis that trees produce leaves adapted to cope with higher levels of water stress, by examining the following leaf characteristics: area, thickness, leaf mass per area, vein density, stomatal density, the thickness of palisade mesophyll, spongy mesophyll and both of the epidermal layers, internal cavity volume and the average cell sizes of the palisade and spongy mesophyll. We also test whether differences in leaf anatomy are consistent with observed differential drought-induced mortality responses among taxa, and look for relationships between leaf anatomy, and leaf water relations and gas exchange parameters. Our data show that trees do not produce leaves that are more xeromorphic in response to 12 years of soil moisture deficit. However, the drought treatment did result in increases in the thickness of the adaxial epidermis (TFE: 20.5 ± 1.5 µm, control: 16.7 ± 1.0 µm) and the internal cavity volume (TFE: 2.43 ± 0.50 mm3 cm?2, control: 1.77 ± 0.30 mm3 cm?2). No consistent differences were detected between drought-resistant and drought-sensitive taxa, although interactions occurred between drought-sensitivity status and drought treatment for the palisade mesophyll thickness (P = 0.034) and the cavity volume of the leaves (P = 0.025). The limited response to water deficit probably reflects a tight co-ordination between leaf morphology, water relations and photosynthetic properties. This suggests that there is little plasticity in these aspects of plant anatomy in these taxa, and that phenotypic plasticity in leaf traits may not facilitate the acclimation of Amazonian trees to the predicted future reductions in dry season water availability. MenosDry periods are predicted to become more frequent and severe in the future in some parts of the tropics, including Amazonia, potentially causing reduced productivity, higher tree mortality and increased emissions of stored carbon. Using a long-term (12 year) through-fall exclusion (TFE) experiment in the tropics, we test the hypothesis that trees produce leaves adapted to cope with higher levels of water stress, by examining the following leaf characteristics: area, thickness, leaf mass per area, vein density, stomatal density, the thickness of palisade mesophyll, spongy mesophyll and both of the epidermal layers, internal cavity volume and the average cell sizes of the palisade and spongy mesophyll. We also test whether differences in leaf anatomy are consistent with observed differential drought-induced mortality responses among taxa, and look for relationships between leaf anatomy, and leaf water relations and gas exchange parameters. Our data show that trees do not produce leaves that are more xeromorphic in response to 12 years of soil moisture deficit. However, the drought treatment did result in increases in the thickness of the adaxial epidermis (TFE: 20.5 ± 1.5 µm, control: 16.7 ± 1.0 µm) and the internal cavity volume (TFE: 2.43 ± 0.50 mm3 cm?2, control: 1.77 ± 0.30 mm3 cm?2). No consistent differences were detected between drought-resistant and drought-sensitive taxa, although interactions occurred between drought-sensitivity status and drought treatment for the p... Mostrar Tudo |
|
Palavras-Chave: |
Estresse hídrico; Fisiologia foliar; Relações hídricas. |
|
Thesagro: |
Aclimatação; Floresta Tropical. |
|
Thesaurus Nal: |
Amazonia. |
|
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
|
Marc: |
LEADER 02849naa a2200289 a 4500
001 2068879
005 2021-12-22
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1093/treephys/tpw078$2DOI
100 1 $aBINKS, O.
245 $aLimited acclimation in leaf anatomy to experimental drought in tropical rainforest trees.$h[electronic resource]
260 $c2016
520 $aDry periods are predicted to become more frequent and severe in the future in some parts of the tropics, including Amazonia, potentially causing reduced productivity, higher tree mortality and increased emissions of stored carbon. Using a long-term (12 year) through-fall exclusion (TFE) experiment in the tropics, we test the hypothesis that trees produce leaves adapted to cope with higher levels of water stress, by examining the following leaf characteristics: area, thickness, leaf mass per area, vein density, stomatal density, the thickness of palisade mesophyll, spongy mesophyll and both of the epidermal layers, internal cavity volume and the average cell sizes of the palisade and spongy mesophyll. We also test whether differences in leaf anatomy are consistent with observed differential drought-induced mortality responses among taxa, and look for relationships between leaf anatomy, and leaf water relations and gas exchange parameters. Our data show that trees do not produce leaves that are more xeromorphic in response to 12 years of soil moisture deficit. However, the drought treatment did result in increases in the thickness of the adaxial epidermis (TFE: 20.5 ± 1.5 µm, control: 16.7 ± 1.0 µm) and the internal cavity volume (TFE: 2.43 ± 0.50 mm3 cm?2, control: 1.77 ± 0.30 mm3 cm?2). No consistent differences were detected between drought-resistant and drought-sensitive taxa, although interactions occurred between drought-sensitivity status and drought treatment for the palisade mesophyll thickness (P = 0.034) and the cavity volume of the leaves (P = 0.025). The limited response to water deficit probably reflects a tight co-ordination between leaf morphology, water relations and photosynthetic properties. This suggests that there is little plasticity in these aspects of plant anatomy in these taxa, and that phenotypic plasticity in leaf traits may not facilitate the acclimation of Amazonian trees to the predicted future reductions in dry season water availability.
650 $aAmazonia
650 $aAclimatação
650 $aFloresta Tropical
653 $aEstresse hídrico
653 $aFisiologia foliar
653 $aRelações hídricas
700 1 $aMEIR, P.
700 1 $aROWLAND, L.
700 1 $aCOSTA, A. C. L. da
700 1 $aVASCONCELOS, S. S.
700 1 $aOLIVEIRA, A. A. R. de
700 1 $aFERREIRA, L.
700 1 $aMENCUCCINI, M.
773 $tTree Physiology$gv. 36, n. 12, p. 1550-1561, 2016.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Amazônia Oriental (CPATU) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 274 | |
| 6. |  | MOREIRA, W. A.; CARVALHO, Y.; ASSUNCAO, M. das S. Avaliação da resistência e/ou tolerância de genótipos de soja a Heterodera glycines raca 14, em solos de cerrado, no Estado de Goiás, Brasil. In: CONGRESSO LATINOAMERICANO DE FITOPATOLOGIA, 9.,1997, Montevideo. Libro de resumenes... Montevideo: SUF/ALF,1997. p. 51.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
|    |
| 12. | | MOREIRA, W. A.; CARVALHO, Y. de; ASSUNCAO, M. da S. Efeito de diferentes densidades populacionais de Heterodera glycines sobre a cultura de soja. Fitopatologia Brasileira, Brasília, DF, v. 23, p. 306, ago. 1998. Suplemento. Edição dos Resumos do 31 Congresso Brasileiro de Fitopatologia, Fortaleza, 1998.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
| |
| 14. | | MOREIRA, W. A.; ASSUNÇÂO, M. S.; MATOS, F. S. A. Reação de genótipos de soja ao nematóide de cisto (Heterodera glycines), raça 14, em Goiás, Brasil. In: CONGRESSO INTERNACIONAL DE NEMATOLOGIA TROPICAL; CONGRESSO DA SOCIEDADE BRASILEIRA DE NEMATOLOGIA, 19.; ENCONTRO ANUAL DA ORGANIZAÇÃO DOS NEMATOLOGISTAS DA AMÉRICA TROPICAL, 27, 1995, Rio Quente. Programa e anais... Rio Quente: SBN: ONTA, 1995. p. 48.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
| |
| 15. | | ASSUNÇÃO, M. S.; ATIBALENTJA, N.; NOEL, G. R. Soybean cyst nematode, Heterodera glycines, resistance genes in PI 89772 and PI 209332 soybean. Nematropica, Ft. Pierce, v. 34, n. 2, p. 165-181, 2004.| Biblioteca(s): Embrapa Soja. |
| |
| 16. | | ROCHA, M. R.; CUNHA, M. G.; NUNES JÚNIOR, J.; ASSUNÇÃO, M. S. Avaliação da eficiência do fungicida Celeiro / Impact Duo no controle da ferrugem asiática (Phakopsora pachyrhizi Sydow) na cultura da soja. In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 27., 2005. Cornélio Procópio. Resumos... Londrina: Embrapa Soja, 2005. p. 283-284. (Embrapa Soja. Documentos, 257). Organizado por Odilon Ferreira Saraiva, Janete Lasso Ortiz, Simone Ery Grosskopf.| Biblioteca(s): Embrapa Soja. |
| |
| 17. | | ROCHA, M. R.; CUNHA, M. G.; NUNES JÚNIOR, J.; ASSUNÇÃO, M. S. Avaliação de diferentes fungicidas, em aplicação preventiva e curativa, no controle da ferrugem asiática (Phakopsora pachyrhizi) na cultura da soja. In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 27., 2005. Cornélio Procópio. Resumos... Londrina: Embrapa Soja, 2005. p. 280-282. (Embrapa Soja. Documentos, 257). Organizado por Odilon Ferreira Saraiva, Janete Lasso Ortiz, Simone Ery Grosskopf.| Biblioteca(s): Embrapa Soja. |
| |
| 19. | | ROCHA, M. R.; CUNHA, M. G.; ASSUNÇÃO, M. S.; NUNES JÚNIOR, J. Ensaio em rede para avaliação de diferentes fungicidas no controle da ferrugem asiática (Phakopsora pachyrhizi) na cultura da soja (safra 2004-2005). In: REUNIÃO DE PESQUISA DE SOJA DA REGIÃO CENTRAL DO BRASIL, 27., 2005. Cornélio Procópio. Resumos... Londrina: Embrapa Soja, 2005. p. 278-279. (Embrapa Soja. Documentos, 257). Organizado por Odilon Ferreira Saraiva, Janete Lasso Ortiz, Simone Ery Grosskopf.| Biblioteca(s): Embrapa Soja. |
| |
| Registros recuperados : 274 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
