Agarose gel electrophoresis of RT-PCR products amplified
by primers from ADP1 grown on benzyl acetate and benzyl alcohol. The
positions of the primers for spanning the areAB intergenic
region (BAr, BAf) and the areCB intragenic region (CBr, CBf)
are shown relative to the gene organization of areCBA. The
values for molecular size markers (in base pairs) in lanes S
(HyperLadder I; Bioline, London, United Kingdom) are indicated on the
right side of the gel. Lanes: 1, areCB, benzyl acetate-grown
cells (expected size, 953 bp); 2, areCB, benzyl
acetate-grown cells digested with SacI (640 and 313 bp); 3,
areCB, benzyl alcohol-grown cells (expected size, 953 bp);
4, areCB, benzyl alcohol-grown cells digested with
SacI (640 and 313 bp); 5, areBA, benzyl
acetate-grown cells (expected size, 946 bp); 6, areBA,
benzyl acetate-grown cells digested with AccI (631 and 315
bp); 7, areBA, benzyl alcohol-grown cells (expected size,
946 bp); 8, areBA, benzyl alcohol-grown cells digested with
AccI (631 and 315 bp). No detectable products were obtained
in control reactions with each pair of primers, from which RT had been
omitted, or in reactions carried out on succinate-grown cells (data not
shown).