Repellent and Anti-quorum Sensing Activity of Six Aromatic Plants Occurring in Colombia

Nat Prod Commun. 2015 Oct;10(10):1753-7.


Essential oils (EOs) are widely used as biopesticides and to control bacterial infections. This study describes the ability of six EOs isolated from plants cultivated in Colombia to perform as repellents against Ulomoides dermestoides and as quorum sensing (QS) inhibitors. EOs from Aloysia triphylla, Cymbopogon nardus, Lippia origanoides, Hyptis suaveolens, Swinglea glutinosa and Eucalyptus globulus were repellents classified as Class IV, IV, IV, III, II, and II, respectively, whereas the commercial repellent IR3535 only reached Class II after 2 h exposure. All EOs presented small, but significant inhibitory properties against the QS system in Escherichia coli (pJBA132) at 25 μg/mL after 4 h exposure. These data suggest evaluated EOs from Colombia are sustainable, promising new sources of natural repellents and could be important as anti-quorum sensing molecules.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Coleoptera / drug effects
  • Escherichia coli / drug effects*
  • Escherichia coli / physiology
  • Insect Repellents / chemistry
  • Insect Repellents / pharmacology*
  • Plant Oils / chemistry
  • Plant Oils / pharmacology*
  • Quorum Sensing / drug effects*
  • Time Factors


  • Insect Repellents
  • Plant Oils