Antimicrobial activity of catechol and pyrogallol as allelochemicals


Kocacaliskan İ. , TALAN I., TERZI I.

Zeitschrift fur Naturforschung - Section C Journal of Biosciences, vol.61, no.9-10, pp.639-642, 2006 (Journal Indexed in SCI Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 61 Issue: 9-10
  • Publication Date: 2006
  • Doi Number: 10.1515/znc-2006-9-1004
  • Title of Journal : Zeitschrift fur Naturforschung - Section C Journal of Biosciences
  • Page Numbers: pp.639-642
  • Keywords: allelochemical, antimicrobial activity, catechol, pyrogallol, JUGLONE, GROWTH, LEAF, SOIL

Abstract

Catechol and pyrogallol are allelochemicals which belong to phenolic compounds synthesized in plants. Their antimicrobial activities were investigated on three bacteria (Pseudomonas putida, Pseudomonas pyocyanea, Corynebacterium xerosis) and two fungi (Fusarium oxysporum, Penicillium italicum) phytopathogenic species as test organisms using the disc diffusion method. Both catechol and pyrogallol were found to have antibacterial effects on all the bacteria used in the study at 5 and 10 mM concentrations. Catechol has also been found to have an antifungal effect on the fungi used in the study, whereas no antifungal effects of pyrogallol were observed. The most sensitive species among the bacteria was P. putida which was inhibited by the allelochemicals even at 1 mM concentration. © 2006 Verlag der Zeitschrift für Naturforschung.