Journal of Chemical Ecology

, Volume 27, Issue 3, pp 611–621

Identification and Effects of Interaction Phytotoxic Compounds from Exudate of Cistus ladanifer Leaves

  • N. Chaves
  • T. Sosa
  • J. C. Alías
  • J. C. Escudero
Article

DOI: 10.1023/A:1010336921853

Cite this article as:
Chaves, N., Sosa, T., Alías, J.C. et al. J Chem Ecol (2001) 27: 611. doi:10.1023/A:1010336921853

Abstract

Eleven allelochemicals (ferulic acid, cinnamic acid, 4-hydroxybenzoic acid, hydroxycinnamic acid, methyl propionate, oxalic acid, methylmalonic acid, p-anisic acid, butyric acid, 3-hydroxybutyric acid, and azulene) were identified in the exudate of Cistus ladanifer L. We studied the effect of each on germination, cotyledon emergence, root length, and cotyledon length of Rumex crispus. Three groups were distinguished with respect to phytotoxic activity: compounds with low activity (ferulic acid, 4-hydroxybenzoic acid, oxalic acid, methylmalonic acid, p-anisic acid, hydroxybutyric acid, and azulene), with intermediate activity (cinnamic acid and hydroxycinnamic acid), and with high activity (methyl propionate and butyric acid). The effect of the interaction of the compounds was studied. When acting conjointly, all combinations tested produced a more negative effect on both germination and seedling growth than when acting alone. The interaction affected cotyledon emergence and root length more negatively than germination and cotyledon length. When hydroxycinnamic acid and cinnamic acid were added to these mixtures there was an enhancement in the phytotoxic activity, accentuating the effect of the other allelochemicals.

Allelopathy allelochemicals phenolic compounds Cistus ladanifer Rumex crispus 

Copyright information

© Plenum Publishing Corporation 2001

Authors and Affiliations

  • N. Chaves
    • 1
  • T. Sosa
    • 1
  • J. C. Alías
    • 1
  • J. C. Escudero
    • 1
  1. 1.Department of Ecology, Faculty of ScienceUniversity of ExtremaduraBadajozSpain

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