Root to branch wood anatomical variation and its influence on hydraulic conductivity in five Brazilian Cerrado species

The wood anatomy of the root, stem (base, middle, top) and branch of Anadenanthera peregrina, Copaifera langsdorffii, Handroanthus ochraceus, Ocotea corymbosa and Xylopia aromatica growing naturally in the Brazilian Cerrado is investigated. The important findings are correlated with hydraulic archit...

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Autores principales:	Longui,Eduardo Luiz, Rajput,Kishore S, Galvão de Melo,Antônio Carlos, de Araújo Alves,Laura, do Nascimento,Caroline Bianca
Lenguaje:	English
Publicado:	Universidad Austral de Chile, Facultad de Ciencias Forestales 2017
Materias:	ecological anatomy hydraulic conductivity tropical woods wood axial variation
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002017000100018
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spelling	oai:scielo:S0717-920020170001000182017-07-20Root to branch wood anatomical variation and its influence on hydraulic conductivity in five Brazilian Cerrado speciesLongui,Eduardo LuizRajput,Kishore SGalvão de Melo,Antônio Carlosde Araújo Alves,Laurado Nascimento,Caroline Bianca ecological anatomy hydraulic conductivity tropical woods wood axial variation The wood anatomy of the root, stem (base, middle, top) and branch of Anadenanthera peregrina, Copaifera langsdorffii, Handroanthus ochraceus, Ocotea corymbosa and Xylopia aromatica growing naturally in the Brazilian Cerrado is investigated. The important findings are correlated with hydraulic architecture and mechanical requirements. The presence of hydraulic bottlenecks (also referred to as hydraulic constrictions) is evident in the transition from root to stem, but no such transition is observed from stem to branch in other four species except for Xylopia aromatica. Compared with solitary vessels, proportion of multiple vessels is higher in the roots of Anadenanthera peregrina and Copaifera langsdorffii, as well as in the roots and stem-base of Xylopia aromatica indicating a tendency toward higher safety of roots from embolism as compared to the stem. Dimensions of rays, fibers and dry biomass percentage did not clearly show variations in these cells to influence the mechanical strength. Besides reducing hydraulic conductivity, decrease in vessel diameter from the root to the stem base may also impact mechanical strength by reducing empty spaces (vessel lumen). We concluded that the wood of the stem base of the species investigated shows mechanism to safeguard from air embolism by producing narrower vessels, which can protect the main stem from constant loss of conductivity.info:eu-repo/semantics/openAccessUniversidad Austral de Chile, Facultad de Ciencias ForestalesBosque (Valdivia) v.38 n.1 20172017-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002017000100018en10.4067/S0717-92002017000100018
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	ecological anatomy hydraulic conductivity tropical woods wood axial variation
spellingShingle	ecological anatomy hydraulic conductivity tropical woods wood axial variation Longui,Eduardo Luiz Rajput,Kishore S Galvão de Melo,Antônio Carlos de Araújo Alves,Laura do Nascimento,Caroline Bianca Root to branch wood anatomical variation and its influence on hydraulic conductivity in five Brazilian Cerrado species
description	The wood anatomy of the root, stem (base, middle, top) and branch of Anadenanthera peregrina, Copaifera langsdorffii, Handroanthus ochraceus, Ocotea corymbosa and Xylopia aromatica growing naturally in the Brazilian Cerrado is investigated. The important findings are correlated with hydraulic architecture and mechanical requirements. The presence of hydraulic bottlenecks (also referred to as hydraulic constrictions) is evident in the transition from root to stem, but no such transition is observed from stem to branch in other four species except for Xylopia aromatica. Compared with solitary vessels, proportion of multiple vessels is higher in the roots of Anadenanthera peregrina and Copaifera langsdorffii, as well as in the roots and stem-base of Xylopia aromatica indicating a tendency toward higher safety of roots from embolism as compared to the stem. Dimensions of rays, fibers and dry biomass percentage did not clearly show variations in these cells to influence the mechanical strength. Besides reducing hydraulic conductivity, decrease in vessel diameter from the root to the stem base may also impact mechanical strength by reducing empty spaces (vessel lumen). We concluded that the wood of the stem base of the species investigated shows mechanism to safeguard from air embolism by producing narrower vessels, which can protect the main stem from constant loss of conductivity.
author	Longui,Eduardo Luiz Rajput,Kishore S Galvão de Melo,Antônio Carlos de Araújo Alves,Laura do Nascimento,Caroline Bianca
author_facet	Longui,Eduardo Luiz Rajput,Kishore S Galvão de Melo,Antônio Carlos de Araújo Alves,Laura do Nascimento,Caroline Bianca
author_sort	Longui,Eduardo Luiz
title	Root to branch wood anatomical variation and its influence on hydraulic conductivity in five Brazilian Cerrado species
title_short	Root to branch wood anatomical variation and its influence on hydraulic conductivity in five Brazilian Cerrado species
title_full	Root to branch wood anatomical variation and its influence on hydraulic conductivity in five Brazilian Cerrado species
title_fullStr	Root to branch wood anatomical variation and its influence on hydraulic conductivity in five Brazilian Cerrado species
title_full_unstemmed	Root to branch wood anatomical variation and its influence on hydraulic conductivity in five Brazilian Cerrado species
title_sort	root to branch wood anatomical variation and its influence on hydraulic conductivity in five brazilian cerrado species
publisher	Universidad Austral de Chile, Facultad de Ciencias Forestales
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-92002017000100018
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_version_	1718444229891457024

Root to branch wood anatomical variation and its influence on hydraulic conductivity in five Brazilian Cerrado species

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