Fig 3. fzt anthers arrest at late stages of stamen maturation and do not dehisce.

(A) Stage of anther development is indicated, as well as the cell types and physiological events that occur at each stage. (B) Normal anthers fully mature and produce mature pollen; the septum degrades immediately prior to dehiscence. (C) fzt anthers often progress to stage 9, however never progress past stage 9 and do not dehisce. Scale bars = 20μm.