Mutagenicity of 2,6-dinitrotoluene and its metabolites, and their related compounds in Salmonella typhimurium

Michio Sayama*, Masa aki Mori, Tomoko Shirokawa, Masami Inoue, Tatsuro Miyahara, Hiroshi Kozuka

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

The mutagenic activities of 2,6-dinitrotoluene (2,6-DNT) and its 6 metabolites, and their 8 related compounds were examined using Salmonella typhimurium strains TA98 and TA100 in the absence or presence of S9 mix. 2,6-DNT itself showed no mutagenicity toward either strain, but 2,6-dinitrobenzaldehyde (2,6-DNBA1), one of the metabolites of 2,6-DNT, showed the highest mutagenic activity in strain TA100. 2,6-DNBA1 was a direct-acting mutagen, not requiring metabolic activation. The other compounds containing nitro groups showed weak or no mutagenic activity. This result suggests that the direct-acting mutagenicity of 2,6-DNBA1 is mainly due to the aldehyde group of the 2,6-DNBA1 molecule.

Original languageEnglish
Pages (from-to)181-184
Number of pages4
JournalMutation Research Letters
Volume226
Issue number3
DOIs
StatePublished - 1989/07

Keywords

  • 2,6-Dinitrobenzaldehyde
  • 2,6-Dinitrotoluene
  • Metabolites of 2,6-dinitrotoluene
  • Mutagenicity
  • Salmonella typhimurium
  • Wistar rat

ASJC Scopus subject areas

  • General Medicine

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