Exhaustive Extractions

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Genetox: Mutational Hazard Identification: Present to Future

As I begin to isolate single bacterial colonies for mutagenicity testing, I couldn’t help but wonder why the bacterial reverse mutation assay has evaded alternate and new technologies for detecting xenobiotic-induced mutation. Of course there is substantial literature and historical data on the salmonella and e. coli strains in wide use today, and there are internationally recognized testing strategies that have been harmonized throughout the past several decades. However, do the highly mutated and compromised bacterial test systems provide any insight into key events along the pathway to mutation? In this day and age, is this the only option to understand the potential for direct DNA reactivity?

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