Static mono- and co-culture hydrolysis of filter paper. Semi-aerobic cultures in non-degassed GS2 medium with Whatman No. 1 filter paper strips as the carbon source. C. molischiana and C. phytofermentans mono- and co-cultures (A) and S. cerevisiae cdt-1 and C. phytofermentans mono- and co-cultures (B). Photographs taken after 40 days (A) and 15 days (B) static incubation at 30°C with periodic agitation. Image is representative of at least two independent experiments each with two replicates (as shown in the photographs).