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Tree species differ in plant economic spectrum traits in the tropical dry forest of Mexico

In tropical dry forests, studies on wood anatomical traits have concentrated mainly on variations in vessel diameter and frequency. Recent research suggests that parenchyma and fibers also play an important role in water conduction and in xylem hydraulic safety. However, these relationships are not...

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Autores principales: Alvarado, Marco V., Terrazas, Teresa
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10635469/
https://www.ncbi.nlm.nih.gov/pubmed/37943793
http://dx.doi.org/10.1371/journal.pone.0293430
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author Alvarado, Marco V.
Terrazas, Teresa
author_facet Alvarado, Marco V.
Terrazas, Teresa
author_sort Alvarado, Marco V.
collection PubMed
description In tropical dry forests, studies on wood anatomical traits have concentrated mainly on variations in vessel diameter and frequency. Recent research suggests that parenchyma and fibers also play an important role in water conduction and in xylem hydraulic safety. However, these relationships are not fully understood, and wood trait variation among different functional profiles as well as their variation under different water availability scenarios have been little studied. In this work, we aim to (1) characterize a set of wood anatomical traits among six selected tree species that represent the economic spectrum of tropical dry forests, (2) assess the variation in these traits under three different rainfall regimes, and (3) determine the relationships between wood anatomical traits and possible functional trade-offs. Differences among species and sites in wood traits were explored. Linear mixed models were fitted, and model comparison was performed. Most variation occurred among species along the economic spectrum. Obligate deciduous, low wood density species were characterized by wood with wide vessels and low frequency, suggesting high water transport capacity but sensitivity to drought. Moreover, high cell fractions of carbon and water storage were also found in these tree species related to the occurrence of abundant parenchyma or septate fibers. Contrary to what most studies show, Cochlospermum vitifolium, a succulent tree species, presented the greatest variation in wood traits. Facultative deciduous, high wood density species were characterized by a sturdy vascular system that may favor resistance to cavitation and low reserve storage. Contrary to our expectations, variation among the rainfall regimes was generally low in all species and was mostly related to vessel traits, while fiber and parenchyma traits presented little variation among species. Strong functional associations between wood anatomical traits and functional trade-offs were found for the six tree species studied along the economic spectrum of tropical dry forests.
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spelling pubmed-106354692023-11-10 Tree species differ in plant economic spectrum traits in the tropical dry forest of Mexico Alvarado, Marco V. Terrazas, Teresa PLoS One Research Article In tropical dry forests, studies on wood anatomical traits have concentrated mainly on variations in vessel diameter and frequency. Recent research suggests that parenchyma and fibers also play an important role in water conduction and in xylem hydraulic safety. However, these relationships are not fully understood, and wood trait variation among different functional profiles as well as their variation under different water availability scenarios have been little studied. In this work, we aim to (1) characterize a set of wood anatomical traits among six selected tree species that represent the economic spectrum of tropical dry forests, (2) assess the variation in these traits under three different rainfall regimes, and (3) determine the relationships between wood anatomical traits and possible functional trade-offs. Differences among species and sites in wood traits were explored. Linear mixed models were fitted, and model comparison was performed. Most variation occurred among species along the economic spectrum. Obligate deciduous, low wood density species were characterized by wood with wide vessels and low frequency, suggesting high water transport capacity but sensitivity to drought. Moreover, high cell fractions of carbon and water storage were also found in these tree species related to the occurrence of abundant parenchyma or septate fibers. Contrary to what most studies show, Cochlospermum vitifolium, a succulent tree species, presented the greatest variation in wood traits. Facultative deciduous, high wood density species were characterized by a sturdy vascular system that may favor resistance to cavitation and low reserve storage. Contrary to our expectations, variation among the rainfall regimes was generally low in all species and was mostly related to vessel traits, while fiber and parenchyma traits presented little variation among species. Strong functional associations between wood anatomical traits and functional trade-offs were found for the six tree species studied along the economic spectrum of tropical dry forests. Public Library of Science 2023-11-09 /pmc/articles/PMC10635469/ /pubmed/37943793 http://dx.doi.org/10.1371/journal.pone.0293430 Text en © 2023 Alvarado, Terrazas https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Alvarado, Marco V.
Terrazas, Teresa
Tree species differ in plant economic spectrum traits in the tropical dry forest of Mexico
title Tree species differ in plant economic spectrum traits in the tropical dry forest of Mexico
title_full Tree species differ in plant economic spectrum traits in the tropical dry forest of Mexico
title_fullStr Tree species differ in plant economic spectrum traits in the tropical dry forest of Mexico
title_full_unstemmed Tree species differ in plant economic spectrum traits in the tropical dry forest of Mexico
title_short Tree species differ in plant economic spectrum traits in the tropical dry forest of Mexico
title_sort tree species differ in plant economic spectrum traits in the tropical dry forest of mexico
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10635469/
https://www.ncbi.nlm.nih.gov/pubmed/37943793
http://dx.doi.org/10.1371/journal.pone.0293430
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