Table 1.

Viability in dense imaging regime

Strain	W1588-4C	YDB271	SO992a	SO992b
GFP:	None	GFP:LacI	None	GFP∶FYVEEEA1
I = 1.0I0	−	−	N/D	N/D
I = 0.1I0	−	−	N/D	N/D
I = 10-2I0	−	−	−	−
I = 10-3I0	+*	−	+	−
I = 5 × 10-4I0	+	+†	N/D	N/D
I = 10-4I0	+	+‡	+	+

^*Growth resumed after 3 h delay.

^†Viable at exposures below 250 msec per second.

^‡Insufficient signal to track spots.