In this
study, we constructed two linearized integrative
vectors containing the Debaryomyces occidentalis
glucoamylase (GAM1) and Aspergillus awamori
glucoamylase genes (GA1), or the D. occidentalis
GAM1 and D. occidentalis a-amylase gene (AMY), to
develop industrial strains of S. cerevisiae with high
glucoamylase and a-amylase activities