TABLE 2.

rbrA⁻ cells do not efficiently produce viable spores^a

Expt	% rbrA
	Input cells	Viable cells in sori	Spores
1	10.0	0.6	0.4
	47.6	0.9	0.0
2	3.6	0.7	0.1
	42.8	1.4	0.7
3	4.6	0	0.3
	32.4	5.8	0.3

^aWild-type and rbrA cell mixtures containing about 3 and 40% rbrA⁻ cells (the actual ratio was determined by plating input cells) were allowed to develop, and the percentage of rbrA⁻ cells in sori was determined before (viable cells) and after (spores) detergent treatment.