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J Bacteriol. 1971 March; 105(3): 739-746
Copyright © 1971 American Society for Microbiology. All Rights Reserved.

Germination Requirements of Bacillus macerans Spores

¹ Western Regional Research Laboratory, Agricultural Research Service, U. S. Department of Agriculture, Albany, California 94710

ABSTRACT

2-Phenylacetamide is an effective germinant for spores of five strains of Bacillus macerans, particularly in the presence of fructose. Benzyl penicillin, the phenyl acetamide derivative of penicillin, and phenylacetic acid are also good germinants. L-Asparagine is an excellent germinant for four strains. -Amino-butyric acid is moderately effective. Pyridoxine, pyridoxal, adenine, and 2,6-diaminopurine are potent germinants for NCA strain 7X1 only. D-Glucose is a powerful germinant for strain B-70 only. D-Fructose and D-ribose strongly potentiate germination induced by other germinants (except L-asparagine) but have only weak activity by themselves. Niacinamide and nicotinamide-adenine dinucleotide, inactive by themselves, are active in the presence of fructose or ribose. Effects of pH, ion concentration, and temperature are described.