“…Mutagenic activity of chemicals has been analysed with different plant systems such as Allium cepa (Fiskesjo, 1997), Vicia faba (Koppen and Verschaeve, 1996), Trifolium repens (Citterio et al, 2002), and Tradescantia virginiana (Fomin et al, 1999). Chromosome aberration assays, mutation assays, cytogenetic tests and specific locus mutation assays were performed (Constantin and Nilan, 1982;Tardiff et al, 1994;Marcon et al, 1999) with these systems. The advantage of measuring the effect of genotoxic chemical directly on DNA is mainly related to the sensitivity and the short response time.…”