A worldview of root traits: the influence of ancestry, growth form, climate and mycorrhizal association on the functional trait variation of fine‐root tissues in seed plants
Abstract
Summary Fine‐root traits play key roles in ecosystem processes, but the drivers of fine‐root trait diversity remain poorly understood. The plant economic spectrum ( PES ) hypothesis predicts that leaf and root traits evolved in coordination. Mycorrhizal association type, plant growth form and climate may also affect root traits. However, the extent to which these controls are confounded with phylogenetic structuring remains unclear. Here we compiled information about root and leaf traits for > 600 species. Using phylogenetic relatedness, climatic ranges, growth form and mycorrhizal associations, we quantified the importance of these factors in the global distribution of fine‐root traits. Phylogenetic structuring accounts for most of the variation for all traits excepting root tissue density, with root diameter and nitrogen concentration showing the strongest phylogenetic signal and specific root length showing intermediate values. Climate was the second most important factor, whereas mycorrhizal type had little effect. Substantial trait coordination occurred between leaves and roots, but the strength varied between growth forms and clades. Our analyses provide evidence that the integration of roots and leaves in the PES requires better accounting of the variation in traits across phylogenetic clades. Inclusion of phylogenetic information provides a powerful framework for predictions of belowground functionalmore »
- Authors:
-
- International Center of Tropical Botany Florida International University Miami FL 33199 USA, Department of Biological Sciences Kent State University Kent OH 44242 USA
- Centre d'Ecologie Fonctionnelle et Evolutive UMR 5175 (CNRS – Université de Montpellier – Université Paul‐Valéry Montpellier – EPHE) Montpellier 34293 France
- Department of Biological Sciences Kent State University Kent OH 44242 USA
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1373826
- Grant/Contract Number:
- DE‐SC0004335; SC0004335
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- New Phytologist
- Additional Journal Information:
- Journal Name: New Phytologist Journal Volume: 215 Journal Issue: 4; Journal ID: ISSN 0028-646X
- Publisher:
- Wiley-Blackwell
- Country of Publication:
- United Kingdom
- Language:
- English
Citation Formats
Valverde‐Barrantes, Oscar J., Freschet, Grégoire T., Roumet, Catherine, and Blackwood, Christopher B. A worldview of root traits: the influence of ancestry, growth form, climate and mycorrhizal association on the functional trait variation of fine‐root tissues in seed plants. United Kingdom: N. p., 2017.
Web. doi:10.1111/nph.14571.
Valverde‐Barrantes, Oscar J., Freschet, Grégoire T., Roumet, Catherine, & Blackwood, Christopher B. A worldview of root traits: the influence of ancestry, growth form, climate and mycorrhizal association on the functional trait variation of fine‐root tissues in seed plants. United Kingdom. https://doi.org/10.1111/nph.14571
Valverde‐Barrantes, Oscar J., Freschet, Grégoire T., Roumet, Catherine, and Blackwood, Christopher B. Tue .
"A worldview of root traits: the influence of ancestry, growth form, climate and mycorrhizal association on the functional trait variation of fine‐root tissues in seed plants". United Kingdom. https://doi.org/10.1111/nph.14571.
@article{osti_1373826,
title = {A worldview of root traits: the influence of ancestry, growth form, climate and mycorrhizal association on the functional trait variation of fine‐root tissues in seed plants},
author = {Valverde‐Barrantes, Oscar J. and Freschet, Grégoire T. and Roumet, Catherine and Blackwood, Christopher B.},
abstractNote = {Summary Fine‐root traits play key roles in ecosystem processes, but the drivers of fine‐root trait diversity remain poorly understood. The plant economic spectrum ( PES ) hypothesis predicts that leaf and root traits evolved in coordination. Mycorrhizal association type, plant growth form and climate may also affect root traits. However, the extent to which these controls are confounded with phylogenetic structuring remains unclear. Here we compiled information about root and leaf traits for > 600 species. Using phylogenetic relatedness, climatic ranges, growth form and mycorrhizal associations, we quantified the importance of these factors in the global distribution of fine‐root traits. Phylogenetic structuring accounts for most of the variation for all traits excepting root tissue density, with root diameter and nitrogen concentration showing the strongest phylogenetic signal and specific root length showing intermediate values. Climate was the second most important factor, whereas mycorrhizal type had little effect. Substantial trait coordination occurred between leaves and roots, but the strength varied between growth forms and clades. Our analyses provide evidence that the integration of roots and leaves in the PES requires better accounting of the variation in traits across phylogenetic clades. Inclusion of phylogenetic information provides a powerful framework for predictions of belowground functional traits at global scales.},
doi = {10.1111/nph.14571},
journal = {New Phytologist},
number = 4,
volume = 215,
place = {United Kingdom},
year = {Tue Apr 25 00:00:00 EDT 2017},
month = {Tue Apr 25 00:00:00 EDT 2017}
}
https://doi.org/10.1111/nph.14571
Web of Science
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