Table III.

Rate constants and half-times for FRAP

Label	Cell Type	k	t1/2
		s−1	s
YFP	Hypocotyl	0.16 ± 0.03	6.3 ± 0.8
FDA	Hypocotyl	0.15 ± 0.021	5.9 ± 1.1
GFP-mTalin	Hypocotyl	0.05 ± 0.005	13.4 ± 1.2
GFP-fABD2	Hypocotyl	0.05 ± 0.006	13.4 ± 1.0
	Root hair	0.05 ± 0.007	16.1 ± 3.0
	Guard cell	0.05 ± 0.003	14.7 ± 0.9
	Leaf epidermal	0.06 ± 0.008	13.2 ± 1.3

Arabidopsis cells expressing GFP-fABD2, GFP-mTalin, or YFP, or nonexpressing cells labeled with FDA were photobleached, the recovery plotted, and an exponential function fitted. The k and t_1/2 were derived from the exponential function. Values are means ± se, n ≥ 12.