Experiments were conducted to investigate the influence of moisture and temperature on the survival of two isolates (B.t. -16 and B.t. - 64) of Bacillus thuringiensis Berliner in autoclaved soil. Both isolates under different moisture and temperature regimes exhibited decreasing trend in populations with time – mostly during first week of observation. Population of surviving bacteria related to moisture and temperature in curvilinear fashion. There were relatively more mortalities under extreme cold, hot, wet or dry conditions. The survival of the isolates was extremely low but still of the size of log10 7 units. The survivorship indicated that B.t.-64 was relatively more tolerant to moisture austerity and temperature extremes than isolate B.t.-16.
Muhammad Qasim Khan, M. Javed Zaki, D. Khan. (2011) THE INFLUENCE OF MOISTURE AND TEMPERATURE ON THE SURVIVAL OF BACILLUS THURINGIENSIS BERLINER IN AUTOCLAVED SOIL, , Volume 08, Issue 2.
