Inhibition by ammonium ion of germination of unactivated spores of Bacillus cereus T induced by l-alanine and inosine. |
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Authors: | H Shibata H Takamatsu I Tani |
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Abstract: | Studies were carried out on the inhibitory effect of NH4+ on germination of spores of Bacillus cereus T induced by L-alanine and inosine. Kinetic analysis showed that NH4+ inhibited the germination competitively. Its inhibitory effect was greater when the unactivated spores had been preincubated with L-alanine. NH4+ did not inhibit the response of unactivated spores to L-alanine during preincubation. These results suggest that L-alanine sensitizes the spores to the inhibitory effect of NH4+. |
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