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The Effect of Oxygen on the Germination and Outgrowth of Clostridium butyricum Spores and Changes in the Oxidation‐Reduction Potential of Cultures
Author(s) -
Douglas F.,
Rigby G. J.
Publication year - 1974
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1974.tb00436.x
Subject(s) - clostridium butyricum , spore , germination , incubation , reduction potential , clostridium , biology , microbiology and biotechnology , chemistry , food science , bacteria , botany , biochemistry , inorganic chemistry , genetics , fermentation
S ummary . The E h fall observed during incubation of Clostridium butyricum spores occurred during germination and emergence, not during the log phase; it is attributed to the H 2 tension resulting from metabolism. When the O 2 tension in the medium was increased, the E h fell only after a few spores outgrew and replicated; germination of remaining spores then followed. It is suggested that the few cells able initially to metabolize can (a) elaborate NADH etc. which reduce the O 2 tension to a level non‐inhibitory for the remaining spores, and (b) produce the H 2 tension recorded by the Pt electrode.