Fig. 3From: DNA microarray of global transcription factor mutant reveals membrane-related proteins involved in n-butanol tolerance in Escherichia coli Transmission electron micrographs of σ70 mutant B8 and WT cells when cultured without or with 0.8 % (v/v) butanol (12,000× magnification). a WT without n-butanol. b WT with n-butanol. c B8 without n-butanol. d B8 with n-butanolBack to article page