Toxicity of chloronitrobenzenes to Fusarium oxysporum and rhizoctonia solani as related to their structure

A. Gamliel*, J. Katan, E. Cohen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

39 Scopus citations

Abstract

The structure-activity relationship of several chlorinated nitrobenzenes was studied using two soilborne fungi, Fusarium oxysporum f. sp. melonis Snyder and Hansen and Rhizoctonia solarii Kühn. Fungitoxicity increased with the increase in number of chlorine substituents and was also affected by the position of the halogens on the phenyl ring. A linear relationship was obtained when the fungitoxicity values (EC50) of the compounds were plotted against their lipophilicity values calculated from octanol-water partition coefficient π.R. solarii was much more sensitive than F. oxysporum to chloronitrobenzenes, particularly with respect to the pentachloro derivative.

Original languageEnglish
Pages (from-to)101-106
Number of pages6
JournalPhytoparasitica
Volume17
Issue number2
DOIs
StatePublished - Jun 1989

Keywords

  • Fusarium
  • nitrobenzene
  • pentachloronitrobenzene
  • Rhizoctonia
  • structure-activity relationship

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