Structural adaptations in plants from the humid equatorial Andes indicate a trade-off between hydraulic transport efficiency and safety
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F21%3A10438255" target="_blank" >RIV/00216208:11310/21:10438255 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=yFlCu_6Qs" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=yFlCu_6Qs</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/ajb2.1799" target="_blank" >10.1002/ajb2.1799</a>
Alternative languages
Result language
angličtina
Original language name
Structural adaptations in plants from the humid equatorial Andes indicate a trade-off between hydraulic transport efficiency and safety
Original language description
Premise Environmental gradients of mountains are reflected in traits that are common to high-elevation plants worldwide. Closely related species of Senecio from the equatorial Andes grow as broad-leaved climbers in montane forests, basal broad-leaved rosette herbs in azonal marshy habitats, and ascending, narrow-leaved subshrubs in high-elevation paramo. Habitat variation along the elevational gradient enables testing whether modifications in leaf and stem functional traits among species were driven by contrasting environmental conditions. Methods We used quantitative analyses to describe changes in morphological and anatomical traits of leaves and stems in 10 species from various habitats. We applied univariate (linear regression, hierarchical ANOVA) and multivariate (NMDS ordination, permutational MANOVA) techniques to examine the correlation of traits with the species' habitats and elevation. Results Species from the humid and frost-free montane forest develop xylem optimized for transport efficiency by increasing the internal diameter and length of the conduits. In contrast, paramo species are optimized toward hydraulic safety by producing narrower conduits and are more likely to prevent the risk of frost-induced cavitation. Moreover, species from the high-elevation paramo habitats present a set of water-transport-related anatomical traits of leaf lamina, allowing for efficient regulation of transpiration losses. Conclusions Morphological and anatomical traits of leaves and stems in species of Senecio inhabiting montane forests and high-elevation paramo in the equatorial Andes demonstrate a trade-off between hydraulic safety and efficiency of water transport.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10611 - Plant sciences, botany
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
American Journal of Botany
ISSN
0002-9122
e-ISSN
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Volume of the periodical
108
Issue of the periodical within the volume
11
Country of publishing house
US - UNITED STATES
Number of pages
16
Pages from-to
2127-2142
UT code for WoS article
000719441400001
EID of the result in the Scopus database
2-s2.0-85119113940