Growth patterns and light induced kinetics of the fungi Cephalosporium sacchari on agar plates

Growth patterns and growth kinetics of the fungi Cephalosporium sacchari on agar surface have been investigated. The mycelium of fungi grows similar t o non-living systems. The growth patterns have been developed on different culture media. The kinetic data obey the simple equation d = mt +c where m and c are slope and intercept respectively and t is the time. The growth wa s found to be light induced. Dependence of pH of media on morphology and gr owth of the microorganism has been studied. Two similar and dissimilar myce lia discs have been inoculated together at a fixed distance and the influen ce on patterns have been studied. The contact zone has been characterised b y a lack of spores abbreviated as inhibition pattern. The suppressed sporul ation at the contact zone is due to competition over nutrients.