Developmental trajectories in cottonwood phytochemistry

Brian J. Rehill, Thomas G Whitham, Gregory D. Martinsen, Jennifer A. Schweitzer, Joseph K. Bailey, Richard L. Lindroth

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

We examined the hypothesis that ecologically important phytochemical traits differ predictably among various developmental zones of trees (i.e., mature and juvenile zones of individual trees and juvenile ramets that sprout from roots) and that the slope of this phytochemical gradient represents a "developmental trajectory." We focused on Populus fremontii (Fremont cottonwood), P. angustifolia (narrowleaf cottonwood), and their natural hybrids. Two major patterns emerged. First, within narrowleaf and hybrids, concentrations of important phytochemicals (condensed tannins and phenolic glycosides) differ greatly and predictably between developmental zones. Second, developmental trajectories differ greatly among these cottonwood species and their hybrids: Fremont exhibits a flat trajectory, narrowleaf a steep trajectory, and hybrids an intermediate trajectory, suggesting an additive genetic component and an ontogenetic basis to this phytochemical variation. Because diverse herbivorous species respond to the phytochem-istry of their host plants, we predict that the developmental trajectories of plants play a major role in mediating ecological interactions and structuring communities, and that biodiversity in a stand of trees is determined by both interplant genetic diversity and intraplant ontogenetic diversity.

Original languageEnglish (US)
Pages (from-to)2269-2285
Number of pages17
JournalJournal of Chemical Ecology
Volume32
Issue number10
DOIs
StatePublished - Oct 2006

Fingerprint

phytochemistry
Populus
plant biochemistry
Phytochemicals
trajectories
trajectory
Trajectories
phytopharmaceuticals
Populus angustifolia
Populus fremontii
Proanthocyanidins
Biodiversity
Glycosides
tannin
proanthocyanidins
host plant
glycosides
host plants
biodiversity
genetic variation

Keywords

  • Community
  • Condensed tannins
  • Developmental trajectory
  • Ontogeny
  • Phenolic glycosides
  • Phytochemistry
  • Populus

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Biochemistry
  • Ecology
  • Biochemistry, Genetics and Molecular Biology(all)

Cite this

Rehill, B. J., Whitham, T. G., Martinsen, G. D., Schweitzer, J. A., Bailey, J. K., & Lindroth, R. L. (2006). Developmental trajectories in cottonwood phytochemistry. Journal of Chemical Ecology, 32(10), 2269-2285. https://doi.org/10.1007/s10886-006-9141-9

Developmental trajectories in cottonwood phytochemistry. / Rehill, Brian J.; Whitham, Thomas G; Martinsen, Gregory D.; Schweitzer, Jennifer A.; Bailey, Joseph K.; Lindroth, Richard L.

In: Journal of Chemical Ecology, Vol. 32, No. 10, 10.2006, p. 2269-2285.

Research output: Contribution to journalArticle

Rehill, BJ, Whitham, TG, Martinsen, GD, Schweitzer, JA, Bailey, JK & Lindroth, RL 2006, 'Developmental trajectories in cottonwood phytochemistry', Journal of Chemical Ecology, vol. 32, no. 10, pp. 2269-2285. https://doi.org/10.1007/s10886-006-9141-9
Rehill BJ, Whitham TG, Martinsen GD, Schweitzer JA, Bailey JK, Lindroth RL. Developmental trajectories in cottonwood phytochemistry. Journal of Chemical Ecology. 2006 Oct;32(10):2269-2285. https://doi.org/10.1007/s10886-006-9141-9
Rehill, Brian J. ; Whitham, Thomas G ; Martinsen, Gregory D. ; Schweitzer, Jennifer A. ; Bailey, Joseph K. ; Lindroth, Richard L. / Developmental trajectories in cottonwood phytochemistry. In: Journal of Chemical Ecology. 2006 ; Vol. 32, No. 10. pp. 2269-2285.
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