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

Benjamin Blonder, François Vasseur, Cyrille Violle, Bill Shipley, Brian J. Enquist, Denis Vile

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

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 tomultiple ecotypes, recombinant inbred lines, near isogenic lines and vascular patterning mutants of Arabidopsis thaliana that express LES trait variation. We show that a wide variation in multiple functional traits recapitulates the LES 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.

Original languageEnglish (US)
JournalAoB PLANTS
Volume7
Issue number1
DOIs
StatePublished - Jan 1 2015
Externally publishedYes

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Arabidopsis thaliana
economics
leaves
testing
resource allocation
isogenic lines
ecotypes
blood vessels
vascular plants
inbred lines
cell walls
mutants
cells

Keywords

  • Arabidopsis
  • Cytoplasm-cell wall partitioning
  • Genotype
  • Leaf economics spectrum
  • Structural equation modelling
  • Vein density
  • Venation network

ASJC Scopus subject areas

  • Plant Science

Cite this

Testing models for the leaf economics spectrum with leaf and whole-plant traits in Arabidopsis thaliana. / Blonder, Benjamin; Vasseur, François; Violle, Cyrille; Shipley, Bill; Enquist, Brian J.; Vile, Denis.

In: AoB PLANTS, Vol. 7, No. 1, 01.01.2015.

Research output: Contribution to journalArticle

Blonder, Benjamin ; Vasseur, François ; Violle, Cyrille ; Shipley, Bill ; Enquist, Brian J. ; Vile, Denis. / Testing models for the leaf economics spectrum with leaf and whole-plant traits in Arabidopsis thaliana. In: AoB PLANTS. 2015 ; Vol. 7, No. 1.
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