Open AccessMeasurements of the pH within dormant and germinated bacterial spores.
Author(s) -
Barbara Setlow,
Peter Setlow
Publication year - 1980
Publication title -
proceedings of the national academy of sciences of the united states of america
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.011
H-Index - 771
eISSN - 1091-6490
pISSN - 0027-8424
DOI - 10.1073/pnas.77.5.2474
Subject(s) - spore , bacillus megaterium , germination , dormancy , bacillus cereus , endospore , bacterial spore , cereus , biology , botany , spore germination , microbiology and biotechnology , chemistry , bacteria , genetics
The pH within the core or central region of dormant spores of Bacillus cereus and B. megaterium is 6.3-6.4 irrespective of the external pH. However, the spore's internal pH rises to 7.3-7.5 upon germination. The low internal pH of the dormant spore may be a contributing factor to its metabolic dormancy.