Characterization of a non-reducing polyketide synthase gene from lichen Dirinaria applanata

A non-reducing polyketide synthase gene characterized from lichen Dirinaria applanata (DnPKS, 8162 bp), down-regulated by sucrose and up-regulated by mannitol, UV and a neutral pH. First report suggesting the conditions under which DnPKS-like gene is regulated in lichens. Southern blot analysis showed the presence of more than one DnPKS-like gene in the D. applanata genome.