Effect of pH and Temperature on the Nematode Destroying Fungus, Paecilomyces lilacinus


Abstract

The growth or Paecilomyces lilacinus (in buffered and unbuffered medium) in a pH range of 5-9; and its survival upon exposure to high temperatures (40-50°C for 0-10 days) was studied in Potato Dextrose Broth in vitro. P. lilacinus had the tendency to alter the initial pH (acidic or basic) towards neutrality. The fungus could grow at all pH levels. However, growth was better in unbuffered medium. P. lilacinus can survive exposure to 40°C for 10 days, 45°C for 6 days and 50°C for 24h. However, the resumption of normal growth at 28±1°C was delayed.

Keywords

Paecilomyces lilacinus, pH, Temperature.

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