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Divergence of stem biomechanics and hydraulics between Bauhinia lianas and trees
Liana abundance and biomass are increasing in neotropical and Asian tropical seasonal forests over the past decades. Stem mechanical properties and hydraulic traits influence the growth and survival of plants, yet the differences in stem mechanical and hydraulic performance between congeneric lianas...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8114228/ https://www.ncbi.nlm.nih.gov/pubmed/34007437 http://dx.doi.org/10.1093/aobpla/plab016 |
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author | Xiao, Yan Song, Yu Wu, Fu-Chuan Zhang, Shu-Bin Zhang, Jiao-Lin |
author_facet | Xiao, Yan Song, Yu Wu, Fu-Chuan Zhang, Shu-Bin Zhang, Jiao-Lin |
author_sort | Xiao, Yan |
collection | PubMed |
description | Liana abundance and biomass are increasing in neotropical and Asian tropical seasonal forests over the past decades. Stem mechanical properties and hydraulic traits influence the growth and survival of plants, yet the differences in stem mechanical and hydraulic performance between congeneric lianas and trees remain poorly understood. Here, we measured 11 stem mechanical and hydraulic traits for 10 liana species and 10 tree species from Bauhinia grown in a tropical common garden. Our results showed that Bauhinia lianas possessed lower stem mechanical strength as indicated by both modulus of elasticity and modulus of rupture, and higher stem potential hydraulic conductivity than congeneric trees. Such divergence was mainly attributed to the differentiation in liana and tree life forms. Whether the phylogenetic effect was considered or not, mechanical strength was positively correlated with wood density, vessel conduit wall reinforcement and sapwood content across species. Results of principle component analysis showed that traits related to mechanical safety and hydraulic efficiency were loaded in the opposite direction, suggesting a trade-off between biomechanics and hydraulics. Our results provide evidence for obvious differentiation in mechanical demand and hydraulic efficiency between congeneric lianas and trees. |
format | Online Article Text |
id | pubmed-8114228 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-81142282021-05-17 Divergence of stem biomechanics and hydraulics between Bauhinia lianas and trees Xiao, Yan Song, Yu Wu, Fu-Chuan Zhang, Shu-Bin Zhang, Jiao-Lin AoB Plants Studies Liana abundance and biomass are increasing in neotropical and Asian tropical seasonal forests over the past decades. Stem mechanical properties and hydraulic traits influence the growth and survival of plants, yet the differences in stem mechanical and hydraulic performance between congeneric lianas and trees remain poorly understood. Here, we measured 11 stem mechanical and hydraulic traits for 10 liana species and 10 tree species from Bauhinia grown in a tropical common garden. Our results showed that Bauhinia lianas possessed lower stem mechanical strength as indicated by both modulus of elasticity and modulus of rupture, and higher stem potential hydraulic conductivity than congeneric trees. Such divergence was mainly attributed to the differentiation in liana and tree life forms. Whether the phylogenetic effect was considered or not, mechanical strength was positively correlated with wood density, vessel conduit wall reinforcement and sapwood content across species. Results of principle component analysis showed that traits related to mechanical safety and hydraulic efficiency were loaded in the opposite direction, suggesting a trade-off between biomechanics and hydraulics. Our results provide evidence for obvious differentiation in mechanical demand and hydraulic efficiency between congeneric lianas and trees. Oxford University Press 2021-04-08 /pmc/articles/PMC8114228/ /pubmed/34007437 http://dx.doi.org/10.1093/aobpla/plab016 Text en © The Author(s) 2021. Published by Oxford University Press on behalf of the Annals of Botany Company. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) ), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Studies Xiao, Yan Song, Yu Wu, Fu-Chuan Zhang, Shu-Bin Zhang, Jiao-Lin Divergence of stem biomechanics and hydraulics between Bauhinia lianas and trees |
title | Divergence of stem biomechanics and hydraulics between Bauhinia lianas and trees |
title_full | Divergence of stem biomechanics and hydraulics between Bauhinia lianas and trees |
title_fullStr | Divergence of stem biomechanics and hydraulics between Bauhinia lianas and trees |
title_full_unstemmed | Divergence of stem biomechanics and hydraulics between Bauhinia lianas and trees |
title_short | Divergence of stem biomechanics and hydraulics between Bauhinia lianas and trees |
title_sort | divergence of stem biomechanics and hydraulics between bauhinia lianas and trees |
topic | Studies |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8114228/ https://www.ncbi.nlm.nih.gov/pubmed/34007437 http://dx.doi.org/10.1093/aobpla/plab016 |
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