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| 62. |  | SILVA, L. A. C. da; SANTOS, S. A.; PELLEGRIN, L. A.; COSTA, A. C. O.; PETZOLD, H. V. Comportamento de pastejo e preferência alimentar de cavalos pantaneiros usados no manejo diário do gado no Pantanal. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 41., 2004, Campo Grande, MS. A produção animal e segurança alimentar: anais. Campo Grande: SBZ, 2004. 5p. CD-ROM, AMB 049.| Biblioteca(s): Embrapa Pantanal. |
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| 63. | | MOURA, L. M. de F.; COSTA, A. C.; MEGGUER, C. A.; CAMPOS, G. W. B.; ALVES, R. R. P. Crescimento de plantas de crambe submetidas à restrição hídrica. In: CONGRESSO BRASILEIRO DE MAMONA, 5.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 2.; FÓRUM CAPIXABA DE PINHÃO-MANSO, 1., 2012, Guarapari. Desafios e Oportunidades: anais. Campina Grande: Embrapa Algodão, 2012. p. 138| Biblioteca(s): Embrapa Algodão. |
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| 66. | | CAMPOS, G. W. B.; COSTA, A. C.; MOURA, L. M. de F.; ALVES, R. R. P.; MEGGUER, C. A. Potencial h´drico e conteúdo relativo de água em plantas de nabo forrageiro submetidas à restrição hídrica. In: CONGRESSO BRASILEIRO DE MAMONA, 5.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 2.; FÓRUM CAPIXABA DE PINHÃO-MANSO, 1., 2012, Guarapari. Desafios e Oportunidades: anais. Campina Grande: Embrapa Algodão, 2012. p.174| Biblioteca(s): Embrapa Algodão. |
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| 67. | | MOURA, L. M. de F.; COSTA, A. C.; MEGGUER, C. A.; CAMPOS, G. W. B.; ALVES, R. R. P. Potencial hídrico e conteúdo relativo de água em plantas de crambe submetidas a déficit hídrico. In: CONGRESSO BRASILEIRO DE MAMONA, 5.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 2.; FÓRUM CAPIXABA DE PINHÃO-MANSO, 1., 2012, Guarapari. Desafios e Oportunidades: anais. Campina Grande: Embrapa Algodão, 2012. p. 173| Biblioteca(s): Embrapa Algodão. |
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| 68. | | CASTRO, J. N. de; COSTA, A. C.; SILVA, F. B. da; MEGGUER, C. A.; SILVA, A. A. da. Fluorescência da clorofila em plantas de cambre submetidas a sub-doses do herbicida sulfentrazone. In: CONGRESSO BRASILEIRO DE MAMONA, 5.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 2.; FÓRUM CAPIXABA DE PINHÃO-MANSO, 1., 2012, Guarapari. Desafios e Oportunidades: anais. Campina Grande: Embrapa Algodão, 2012. p. 163| Biblioteca(s): Embrapa Algodão. |
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| 73. | | URQUIAGA, C. S.; LIBARDI, P. L.; REICHARDT, K.; MORAES, S. O.; PADOVESE, P. P.; COSTA, A. C. S. da. Efeito da adicao de materia organica e de vermiculita expandida em algumas propriedades de um oxisol com graminea (Melinis minutiflora Beauv.). In: COLOQUIO REGIONAL SOBRE MATERIA ORGANICA DO SOLO, 1982, Piracicaba, SP. Anais. Piracicaba: CENA / PROMOCET, 1982. p.237-243.| Biblioteca(s): Embrapa Cerrados. |
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| 74. | | BRINGEL, J. M.; NASCIMENTO, A. S.; KRONKA, A. Z.; PONTES, N. C.; NASCIMENTO, L. C.; COSTA, A. C. Efeito da incorporação de citronela (Cymbopogon nardus L.) ao solo sobre Ralstonia solanacearum, causadora da murcha bacteriana do tomateiro. Fitopatologia Brasileira, Brasília, DF, v. 30, p. S61, ago. 2006. Suplemento. Resumo 033. Trabalho apresentado no 38. Congresso Brasileiro de Fitopatologia, 2005, Brasília, DF.| Biblioteca(s): Embrapa Hortaliças. |
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| 77. | | FERNANDES, F. de F.; FREITAS, E. de P. e S.; COSTA, A. C. da; SILVA, L. G. da. Larvicidal potential of Sapindus saponaria to control the cattle tick Boophilus microplus. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 40, n. 12, p. 1243-1245, dez. 2005 Notas Científicas.
Título em português: Potencial larvicida de Sapindus saponaria para controle do carrapato bovino Boophilus microplus.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 79. | | MELO, N. F. de; RESENDE, G. M. de; ASSIS, J. S. de; COSTA, A. C.; COSTA, C. M.; FREIRE, D. Influencia do AIB (acido indolbutirico) e do tipo de estacas sobre o enraizamento do porta enxerto de videira IAC 572. In: CONGRESSO NACIONAL DE BOTÂNICA, 47., 1996, Nova Friburgo. Resumos... Nova Friburgo: SBB, 1996. p. 441.| Biblioteca(s): Embrapa Semiárido. |
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| 80. | | MIKAMI, E. E.; PINTRO, J. C.; TORMENA, C. A. T.; COSTA, A. C. S. da; SENGIK, E. Influencia da aplicacao de calcio, de magnesio e de potassio no solo sobre a producao de goiaba (Psidium guajava L.) cv. Paluma Acta Scientiarum, Maringa-PR, v.22, n.4, p.1075-1081, 2000| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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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: |
24/04/2017 |
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Data da última atualização: |
22/12/2021 |
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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: |
BINKS, O.; MEIR, P.; ROWLAND, L.; COSTA, A. C. L. da; VASCONCELOS, S. S.; OLIVEIRA, A. A. R. de; FERREIRA, L.; MENCUCCINI, M. |
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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. |
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Título: |
Limited acclimation in leaf anatomy to experimental drought in tropical rainforest trees. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Tree Physiology, v. 36, n. 12, p. 1550-1561, 2016. |
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DOI: |
10.1093/treephys/tpw078 |
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Idioma: |
Inglês |
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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 |
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Palavras-Chave: |
Estresse hídrico; Fisiologia foliar; Relações hídricas. |
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Thesagro: |
Aclimatação; Floresta Tropical. |
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Thesaurus NAL: |
Amazonia. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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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.
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