Premium
Inhibition by Ammonium Ion of Germination of Unactivated Spores of Bacillus cereus T Induced by L ‐Alanine and Inosine
Author(s) -
Shibata Hirofumi,
Takamatsu Hiroaki,
Tani Isamu
Publication year - 1978
Publication title -
microbiology and immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.664
H-Index - 70
eISSN - 1348-0421
pISSN - 0385-5600
DOI - 10.1111/j.1348-0421.1978.tb00356.x
Subject(s) - inosine , spore , bacillus cereus , germination , alanine , ammonium , biology , cereus , microbiology and biotechnology , bacillales , biochemistry , chemistry , enzyme , botany , amino acid , bacteria , bacillus subtilis , organic chemistry , genetics
Studies were carried out on the inhibitory effect of NH 4 + on germination of spores of Bacillus cereus T induced by L ‐alanine and inosine. Kinetic analysis showed that NH 4 + inhibited the germination competitively. Its inhibitory effect was greater when the unactivated spores had been preincubated with L ‐alanine. NH 4 + 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 NH 4 +.