LETHAL EFFECTS OF GAMMA RADIATION UPON SEGMENTS OF A NATURAL MICROBIAL POPULATION

Abstract
The effect of gamma radiation upon certain segments of a natural microbial population was evaluated. The population studied was the nicroflora in a tree-hole of a mature beech tree. Seven segments of this population were tested. Lethality values compared fairly well with those previously reported for pure strains of various organisms. Delayed effect studies indicated that if an entire segment of the population is not eliminated, the population will return in time to equilibrium.