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dc.contributor.author Meinzer, Frederick C.
dc.contributor.author Campanello, Paula Inés
dc.contributor.author Domec, Jean Christophe
dc.contributor.author Gatti, Maria Genoveva
dc.contributor.author Goldstein, Guillermo Hernan
dc.contributor.author Villalobos Vega, Randol
dc.contributor.author Woodruff, David R.
dc.date.available 2018-09-27T19:34:02Z
dc.date.issued 2008-12
dc.identifier.citation Meinzer, Frederick C.; Campanello, Paula Inés; Domec, Jean Christophe; Gatti, Maria Genoveva; Goldstein, Guillermo Hernan; et al.; Constraints on physiological function associated with branch architecture and wood density in tropical forest trees; Oxford University Press; Tree Physiology; 28; 11; 12-2008; 1609-1617
dc.identifier.issn 0829-318X
dc.identifier.uri http://hdl.handle.net/11336/61118
dc.description.abstract This study examined how leaf and stem functional traits related to gas exchange and water balance scale with two potential proxies for tree hydraulic architecture: the leaf area:sapwood area ratio (AL:AS) and wood density (ρw). We studied the upper crowns of individuals of 15 tropical forest tree species at two sites in Panama with contrasting moisture regimes and forest types. Transpiration and maximum photosynthetic electron transport rate (ETRmax) per unit leaf area declined sharply with increasing AL:AS, as did the ratio of ETR max to leaf N content, an index of photosynthetic nitrogen-use efficiency. Midday leaf water potential, bulk leaf osmotic potential at zero turgor, branch xylem specific conductivity, leaf-specific conductivity and stem and leaf capacitance all declined with increasing ρw. At the branch scale, AL:AS and total leaf N content per unit sapwood area increased with ρw, resulting in a 30% increase in ETRmax per unit sapwood area with a doubling of ρw. These compensatory adjustments in AL:AS, N allocation and potential photosynthetic capacity at the branch level were insufficient to completely offset the increased carbon costs of producing denser wood, and exacerbated the negative impact of increasing ρw on branch hydraulics and leaf water status. The suite of tree functional and architectural traits studied appeared to be constrained by the hydraulic and mechanical consequences of variation in ρw. © 2008 Heron Publishing.
dc.format application/pdf
dc.language.iso eng
dc.publisher Oxford University Press
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject CAPACITANCE
dc.subject FUNCTIONAL CONVERGENCE
dc.subject HYDRAULIC ARCHITECTURE
dc.subject OSMOTIC POTENTIAL
dc.subject PHOTOSYNTHESIS
dc.subject TRANSPIRATION
dc.subject WATER POTENTIAL
dc.subject.classification Otras Ciencias Biológicas
dc.subject.classification Ciencias Biológicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Constraints on physiological function associated with branch architecture and wood density in tropical forest trees
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion
dc.date.updated 2018-09-18T14:07:01Z
dc.identifier.eissn 1758-4469
dc.journal.volume 28
dc.journal.number 11
dc.journal.pagination 1609-1617
dc.journal.pais Reino Unido
dc.journal.ciudad Oxford
dc.description.fil Fil: Meinzer, Frederick C.. United States Department of Agriculture; Estados Unidos
dc.description.fil Fil: Campanello, Paula Inés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina
dc.description.fil Fil: Domec, Jean Christophe. North Carolina State University; Estados Unidos
dc.description.fil Fil: Gatti, Maria Genoveva. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste; Argentina. United States Department of Agriculture; Estados Unidos
dc.description.fil Fil: Goldstein, Guillermo Hernan. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ecología, Genética y Evolución; Argentina. University of Miami; Estados Unidos
dc.description.fil Fil: Villalobos Vega, Randol. University of Miami; Estados Unidos
dc.description.fil Fil: Woodruff, David R.. United States Department of Agriculture; Estados Unidos
dc.journal.title Tree Physiology
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1093/treephys/28.11.1609
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/treephys/article/28/11/1609/1671283?searchresult=1
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)