Abstract

The idea that the concentration of secondary metabolites in plant tissues is controlled by the availability of carbon and nitrogen in the environment has been termed the carbon-nutrient balance hypothesis (CNB). This hypothesis has beeninvoked both for prediction and for post hoc explanation of the results of hundreds of studies. Although it successfully predicts outcomes in some cases, it fails to such an extent that it cannot any longer be considered useful as a predictive tool. As information from studies has accumulated, many attempts have been made to save CNB, but these have been largely unsuccessful and have managed only to limit its utility. The failure of CNB is rooted in assumptions that are now known to be incorrect and it is time to abandon CNB because continued use of the hypothesis is now hindering understanding of plant-consumer interactions. In its place we propose development of theory with afirm evolutionary basis that is mechanistically sophisticated in terms of plant and herbivore physiology and genetics.

Original languageEnglish (US)
Pages (from-to)86-95
Number of pages10
JournalEcology Letters
Volume4
Issue number1
DOIs
StatePublished - Jan 2001

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nutrient balance
carbon
development theory
secondary metabolite
secondary metabolites
physiology
plant tissues
herbivore
herbivores
prediction
nitrogen

Keywords

  • CNB
  • Carbon-nutrient balance
  • Herbivory
  • Heritability
  • Optimal defence
  • Plant-insect interactions
  • Secondary metabolites

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics

Cite this

The carbon-nutrient balance hypothesis : Its rise and fall. / Hamilton, J. G.; Zangerl, A. R.; DeLucia, E. H.; Berenbaum, M. R.

In: Ecology Letters, Vol. 4, No. 1, 01.2001, p. 86-95.

Research output: Contribution to journalArticle

Hamilton, J. G. ; Zangerl, A. R. ; DeLucia, E. H. ; Berenbaum, M. R. / The carbon-nutrient balance hypothesis : Its rise and fall. In: Ecology Letters. 2001 ; Vol. 4, No. 1. pp. 86-95.
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