MUTANT ENRICHMENT IN THE COLONIAL ALGA, EUDORINA ELEGANS

1 Department of Biological Sciences, Simon Fraser University, Burnaby, Canada V5A 1S6

An enrichment procedure has been developed that results in at least a 200x increase in mutation frequency in the colonial alga, Eudorina elegans. A period of nitrogen starvation followed by treatment with 8-azaguanine results in the death of wild-type cells and the maintenance of mutants. N'-nitro-N-nitro-soguanidine-induced acetate, p-aminobenzoic acid and reduced nitrogen requiring mutants have been isolated by this procedure.

Submitted on March 3, 1975
Revised on May 14, 1975