Actin organization in trichomes of arp3-1 and
arp2-1 plants. F-actin was visualized as described in
Figure 5. All images shown are
projections. Bar in A is for A, D, and G. Bar in B is for B, E, and H. Bar in
C is for C, F, and I. Bar = 20 μm. A, D, and G, Young trichomes from a WT,
arp2-1, and arp3-1 plants, respectively.
Arrow in A points to diffuse cortical F-actin signal in a rapid growing
branch. Arrows in D and G indicate the loss of fine F-actin in the mutant
branches. Arrowheads in D and G point to thick actin cables. B, E, and H,
Stalks of mature trichomes from WT, arp2-1, and
arp3-1 plants, respectively. C, F, and I, Branches of mature
trichomes from WT, arp2-1, and arp3-1 plant, respectively.