抄録
The factors affecting the germination of spores of alkalophilic Bacillus species have been studied. The optimum pH for germination of spores of alkalophilic Bacillus No. 2b-2 was about 10 and NaCl (Na+) stimulated germination considerably. The optimum concentration of NaCl for germination was about 0.2M. Other cations such as K+, NH4+, Rb+, Cs+ and Ca2+ did not stimulate germination. Li+ showed a weak activity for stimulating germination. Na+ ions stimulated the early step of germination. It was necessary for Na+ ions to co-exsist with the germinants in the germination of spores and the effect of Na+ was reversible. The same results were obtained for the germination of alkalophilic Bacillus No. 16-2 and No. 20.
