Effect of pH and Temperature on Growth of Fungi from City Waste of Bareilly

Growth and activity of ten fungal isolates from city waste were observed at different temperature and pH by using colony diameter and dry weight measurement methods. All the tested fungal isolates showed the different cardinal growth and different degree of tolerance of pH and temperature. Aspergillus fumigatus, Aspergillus flavus, Penicillium chrysogenum and Emericella nidulans grew optimally at 35 and 40ºC while the rest showed their maximum growth at 45ºC. Among tested isolates Aspergillus niger Aspergillus fumigatus and Emericella nidulans did not grow at 50ºC. While Thermoascus exhibited maximum growth at 50ºC. Maximum pH optima were showed most of the tested isolates while Aspergillus flavus and Emericella nidulans exhibited acidic range of pH. Initial pH was also found to change in liquid medium because of metabolic activities of growing fungus.