Plasticity in leaf‐level water relations of tropical rainforest trees in response to experimental drought
| Autor: | Maurizio Mencuccini, Antonio Carlos Lola da Costa, Alex A. R. Oliveira, Andrea Nardini, Lucy Rowland, Steel Silva Vasconcelos, Leandro Valle Ferreira, Oliver Binks, Patrick Meir, Bradley O. Christoffersen |
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| Přispěvatelé: | Oliver Binks, University of Edinburgh, Patrick Meir, University of Edinburgh / Australian National University, Lucy Rowland, University of Edinburgh, Antonio Carlos Lola da Costa, UFPA, STEEL SILVA VASCONCELOS, CPATU, Alex Antonio Ribeiro de Oliveira, UFPA, Leandro Ferreira, MPEG, Bradley Christoffersen, Earth and Environmental Science, Los Alamos National Laboratory, Andrea Nardini, Universitá di Trieste, Maurizio Mencuccini, University of Edinburgh / ICREA at CREAF., Binks, Oliver, Meir, Patrick, Rowland, Lucy, da Costa, Antonio Carlos Lola, Vasconcelos, Steel Silva, de Oliveira, Alex Antonio Ribeiro, Ferreira, Leandro, Christoffersen, Bradley, Nardini, Andrea, Mencuccini, Maurizio |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0106 biological sciences
Rainforest Plasticity Amazon rainforest Physiology Osmotic adjustment Turgor pressure experimental drought Water relation Climate change Plant Science Biology Relações hídricas 010603 evolutionary biology 01 natural sciences Spongy tissue Pressure Osmotic pressure Water content Probability Full Paper Leaf anatomy Ecology Research fungi Tropics food and beverages Water osmotic adjustment 15. Life on land Full Papers Models Theoretical Experimental drought Droughts Plasticidade Plant Leaves Agronomy plasticity Anatomia foliar Linear Models leaf anatomy Seca experimental Seasons water relations Water relations 010606 plant biology & botany Tropical rainforest |
| Zdroj: | The New Phytologist Repositório Institucional da EMBRAPA (Repository Open Access to Scientific Information from EMBRAPA-Alice) Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA Binks, O J, Meir, P, Lola da Costa, A C, Vasconcelos, S S, Ribeiro de Oliveira, A A, Ferreira, L, Christofferson, B, Nardini, A & Mencuccini, M 2016, ' Plasticity in leaf-level water relations of tropical rainforest trees in response to experimental drought ', New Phytologist . https://doi.org/10.1111/nph.13927 |
| ISSN: | 1469-8137 0028-646X |
| Popis: | Summary The tropics are predicted to become warmer and drier, and understanding the sensitivity of tree species to drought is important for characterizing the risk to forests of climate change. This study makes use of a long‐term drought experiment in the Amazon rainforest to evaluate the role of leaf‐level water relations, leaf anatomy and their plasticity in response to drought in six tree genera.The variables (osmotic potential at full turgor, turgor loss point, capacitance, elastic modulus, relative water content and saturated water content) were compared between seasons and between plots (control and through‐fall exclusion) enabling a comparison between short‐ and long‐term plasticity in traits. Leaf anatomical traits were correlated with water relation parameters to determine whether water relations differed among tissues.The key findings were: osmotic adjustment occurred in response to the long‐term drought treatment; species resistant to drought stress showed less osmotic adjustment than drought‐sensitive species; and water relation traits were correlated with tissue properties, especially the thickness of the abaxial epidermis and the spongy mesophyll.These findings demonstrate that cell‐level water relation traits can acclimate to long‐term water stress, and highlight the limitations of extrapolating the results of short‐term studies to temporal scales associated with climate change. |
| Databáze: | OpenAIRE |
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