Actin Turnover-Mediated Gravity Response in Maize Root Apices

Figures & data

Figure 1 Effects of jasplakinolide (10 and 50 µM for 1 h) and phalloidin (100 µM for 1 h) treatments on the kinetics of the gravibending of intact and decapped maize roots. Values are means ± SE, n = 15.

Figure 2 Effects of cytochalasin D (10 µM for 2 h) on the kinetics of gravibendings of intact and decapped maize roots. Values are means ± SE, n = 15.

Figure 3 Effects of Latrunculin B (10 µM for 2 h) on the kinetics of gravibendings of intact and decapped maize roots. Values are means ± SE, n = 15.

Figure 4 Effects of 2,3-butanedione monoxime (BDM) (1 mM for 4 h) on the kinetics of gravibendings of intact and decapped maize roots. Values are means ± SE, n = 15.

Table 1 Growth rates, final angles, and bending rates of intact, decapped, and drug-treated maize root apices during 8 h after their treatments

Treatments	Roots	Growth Rate (mm h^−1)	Final Angle (degrees)
No treatment	Intact	1.73 ± 0.31	70.15 ± 3.60
	Decapped	1.69 ± 0.36	24.22 ± 3.40
JAS	Intact	1.05 ± 0.28	17.82 ± 1.95
(10 µM for 1 h)
JAS	Intact	0.85 ± 0.09	12.50 ± 1.40l
(50 µM for 1 h)	Decapped	0.36 ± 0.18	2.02 ± 3.51
CYT-D	Intact	0.92 ± 0.06	66.21 ± 3.44
(10 µM for 2 h)	Decapped	0.39 ± 0.07	38.52 ± 3.86
LAT-B	Intact	1.22 ± 0.38	69.52 ± 3.39
(10 µM for 2 h)	Decapped	0.31 ± 0.08	52.62 ± 3.66
BDM	Intact	0.88 ± 0.07	69.78 ± 2.63
(10^−3 M for 4 h)	Decapped	0.38 ± 0.05	48.42 ± 3.21

Values are means ± SE, n = 15.