TABLE 2.

Cytoduction assays

Genotype of strain mixed with the a2 b1 oligomycin- resistant strain	cAMP added (mM)	Cytoduction frequencya	% of wild-type frequency
a1 b1 Hygr (positive control)	None	2.3 × 10−5	100
a2 b1 Hygr (negative control)	None	< 6.1 × 10−8	<0.27b
a1 b1 Δgpa3	None	3 × 10−7	1.3
a1 b1 Δbpp1-2	None	2.5 × 10−6	11
a1 b1 Δgpa3 Δbpp1-2	None	5.4 × 10−7	2.3
a1 b1 Hygr	6	3.4 × 10−5	100
a2 b1 Hygr	6	< 9 × 10−8	<0.26b
a1 b1 Δgpa3	6	4.0 × 10−5	118
a1 b1 Δbpp1-2	6	4.3 × 10−5	126
a1 b1 Δgpa3 Δbpp1-2	6	3.1 × 10−5	91

^aProportion of hygromycin- and nourseothricin-resistant colonies that were also oligomycin resistant.

^bNo cytoductants detected.