Inhibition of auxin-stimulated growth of pea stem segments by a specific nonasaccharide of xyloglucan

Gordon J. McDougall*, Stephen c. Fry

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Hemicellulose extracted from cell walls of suspension-cultured rose (Rosa "Paul's Scarlet") cells was digested with cellulase from Trichoderma viride. The quantitatively major oligosaccharide products, a nonasaccharide and a heptasaccharide derived from xyloglucan, were purified by gel permeation chromatography. The nonasaccharide was found to inhibit the 2,4-dichlorophenoxy-acetic-acid-induced elongation of etiolated pea (Pisum sativum) stem segments. This confirms an earlier report (York et al., 1984, Plant Physiol. 75, 295-297). The inhibition of elongation by the nonasaccharide showed a maximum at around 10-9M with higher and lower concentrations being less effective. The heptasaccharide did not significantly inhibit elongation at 10-7-10-10M and also did not affect the inhibition caused by the nonasaccharide when co-incubated with the latter.

Original languageEnglish
Pages (from-to)412-416
Number of pages5
JournalPlanta
Volume175
Issue number3
DOIs
Publication statusPublished - 1 Sept 1988

Keywords / Materials (for Non-textual outputs)

  • 'Oligosaccharin'
  • Anti-auxin
  • Auxin
  • Pisum (growth inhibition)
  • Rosa
  • Xyloglucan

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