Impact of Sorbic Acid on Germination and Outgrowth Heterogeneity of Bacillus cereus ATCC 14579 Spores
Author(s) -
Heidy M.W. den Besten,
C.C.J. van Melis,
Jan-Willem Sanders,
M.N. Nierop Groot,
Tjakko Abee
Publication year - 2012
Publication title -
applied and environmental microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.552
H-Index - 324
eISSN - 1070-6291
pISSN - 0099-2240
DOI - 10.1128/aem.02361-12
Subject(s) - spore , germination , sorbic acid , bacillus cereus , population , biology , microbiology and biotechnology , chemistry , food science , botany , bacteria , genetics , sociology , demography
Population heterogeneity complicates the predictability of the outgrowth kinetics of individual spores. Flow cytometry sorting and monitoring of the germination and outgrowth of single dormant spores allowed the quantification of acid-induced spore population heterogeneity at pH 5.5 and in the presence of sorbic acid. This showed that germination efficiency was not a good predictor for heterogeneity in final outgrowth.
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