title: Induction of colicin 1a at high temperature.
abstract: Induction of colicin la at a high temperature (42 C) was demonstrated in a wild strain of Shigella sonnei. After transfer of the Col factor, a similar effect was observed in those recipient cells acquiring colicinogeny. The induction is suggested to be due to the presence of a thermosensitive colicin repressor. The wild-type strain segregated sensitive cells and showed heterogeneity in colicin production.
mesh_terms: D002725:Chloroform; D003087:Colicins / Q000096:biosynthesis / Q000494:pharmacology; D003227:Conjugation, Genetic; D003470:Culture Media; D004926:Escherichia coli / Q000187:drug effects / Q000254:growth & development; D005827:Genetics, Microbial; D006358:Hot Temperature; D008937:Mitomycins / Q000494:pharmacology; D012764:Shigella sonnei / Q000187:drug effects / Q000254:growth & development / Q000378:metabolism* / Q000528:radiation effects; D014466:Ultraviolet Rays
chemical_list: D003087:Colicins; D003470:Culture Media; D008937:Mitomycins; D002725:Chloroform