Testing models for the leaf economics spectrum with leaf and whole-plant traits in [i]Arabidopsis thaliana[/i] - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue AoB Plants Année : 2015

Testing models for the leaf economics spectrum with leaf and whole-plant traits in [i]Arabidopsis thaliana[/i]

Résumé

The leaf economics spectrum (LES) describes strong relationships between multiple functional leaf traits that determine resource fluxes in vascular plants. Five models have been proposed to explain these patterns, two based on patterns of structural allocation, two on venation networks, and one on resource allocation to cell walls and cell contents. Here we test these models using data for leaf and whole-plant functional traits. We use structural equation modelling applied to multiple ecotypes, recombinant inbred lines, near isogenic lines and vascular patterning mutants of Arabidopsis thaliana that express LES trait variation. We show that wide variation in multiple functional traits recapitulates the leaf economics spectrum at the whole-plant scale. The Wright et al. (2004) model and the Blonder et al. (2013) venation network model cannot be rejected by data, while two simple models and the Shipley et al. (2006) allocation model are rejected. Venation networks remain a key hypothesis for the origin of the LES, but simpler explanations also cannot be ruled out.
Fichier principal
Vignette du fichier
Blonder-aobpla_2015_{52A8F169-4BFE-498A-912E-25A66A77765D}.pdf (622.51 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-01185662 , version 1 (20-08-2015)

Identifiants

Citer

Benjamin Blonder, François Vasseur, Cyrille Violle, Bill Shipley, Brian J. Enquist, et al.. Testing models for the leaf economics spectrum with leaf and whole-plant traits in [i]Arabidopsis thaliana[/i]. AoB Plants, 2015, 7, ⟨10.1093/aobpla/plv049⟩. ⟨hal-01185662⟩
129 Consultations
133 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More