Figure 6.

Light micrographs of anther sections. Representative anthers from flower buds corresponding to sample 1 (A), sample 2 (B), sample 3 (C), sample 4 (D) and sample 5 (E) in Figure 5. Scale bars, 50 μm. pmc, pollen mother cell; tp, tapetum; t, tetrad; vm, vacuolated microspore; ex, exine; p, pollen grain.