Isolation, biofilm formation and other issues related to filamentous fungi in drinking water

Abstract

In studies two genera of biocontrol yeasts were isolated from apple surface. They were three isolates of Candida membranefaciens and one isolate of Pichia guilliermondii. They distinctly controlled Penicillium expansum, the cause of blue mold of apple fruit isolated from apple surface. Treatments were studied in vitro and in vivo after artificial inoculation and storage at 5 and 20" C. Dual culture, cell free metabolite (coloroform) and volatile metabolite tests were carried out in vitro. At 20° C, the area of lesion in treatment including the antagonist and pathogen, was 17-21 cm in comparison to 31 cm of the control treatment. (…)