(B-B'') Apical junctions at the pharynx/valve boundary in a 7.5 hr wild-type embryo stained for the apical junction marker AJM-1 (B) and for
eff-1::EFF-1::GFP (B'). In this longitudinal view, the intercellular junctions at the ends of
pm8 and
vpi1 appear as vertical lines (B). The inset in (B) shows the same region in an
eff-1 mutant with an autocellular junction linking the intercellular junctions in
vpi1, but not
pm8. Bars = 2.5 um.