Table 2 Number of colonies in soft agar

Line Colony diameter (µm)

100 250 500

pStro1+ 0 0 0
{alpha}SM-56 240 ± 12 20 ± 10 0
SV40-56 385 ± 19 73 ± 11 0
LTR-9 422 ± 44 28 ± 9 9 ± 5