2.3. Bacterial strains and methods Two E. coli K-12 strains were used: MG1655 (F− λ− ilvG− rfb-50 rph- 1); and SCC1 (MG1655 PA1/04/03-gfpmut3*) which constitutively expresses green fluorescent protein (GFP; Miao et al., 2009).
2.3. Bacterial strains and methodsTwo E. coli K-12 strains were used: MG1655 (F− λ− ilvG− rfb-50 rph-1); and SCC1 (MG1655 PA1/04/03-gfpmut3*) which constitutively expressesgreen fluorescent protein (GFP; Miao et al., 2009).