Affiliation:
1. Biology Department, Sam Houston State University, Huntsville, Texas 77341
Abstract
Spore glutamic acid pools were examined in dormant and germinating spores using colorimetric and
14
C analytical procedures. Germination of spores of
Bacillus megaterium
(parent strain), initiated by
d
-glucose, was accompanied by a rapid drop in the level of spore pool glutamate, from 12.0 μg/mg of dry spores to 7.7 μg/mg of dry spores after 30 sec of germination. Similar decreases in extractable spore pool glutamate were observed with
l
-alanine-initiated germination of
B. licheniformis
spores. On the other hand, glutamate pools of mutant spores of
B. megaterium
, with a requirement of γ-aminobutyric acid for spore germination, remained unchanged for 9 min of germination, at which time more than 50% of the spore population had germinated. Evidence for conversion of spore pool glutamate to γ-aminobutyric acid during germination of spores of
B. megaterium
(parent strain) was obtained.
Publisher
American Society for Microbiology
Subject
Molecular Biology,Microbiology
Cited by
16 articles.
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