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Physiological Studies on Early‐blocked Sporulation Mutants of Bacillus subtilis
Author(s) -
Michel Janine F.,
Millet Jacqueline
Publication year - 1970
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.1365-2672.1970.tb05246.x
Subject(s) - bacillus subtilis , mutant , extracellular , spore , enzyme , esterase , serine , biochemistry , chemistry , bacillales , biology , microbiology and biotechnology , bacteria , genetics , gene
S ummary . A relationship was observed in Bacillus subtilis between spore formation and the production of two extracellular enzymes, a serine‐proteinase and an esterase. These productions are impaired in 5 different classes of early‐blocked sporulation mutants. The residual activities of these two enzymes vary in proportion from one mutant class to another. The activity of a third extracellular enzyme, a metal activated proteinase, is slightly impaired if at all in only 2 of the 5 mutant classes. This activity is not required for sporulation, since enzyme loss in one mutant did not affect its ability to sporulate.