(
A,
B) Immunostaining images co-stained by HRP (red) and Dlg (green) show bouton number reduction in
UAS-leonRNAi driven by postsynaptic
24B-GAL4 (
A), but not by presynaptic
D42-GAL4 (
B). Scale bars, 20 μm. (
C) Bar graphs show means ± SEM of bouton number in
24B-GAL4,
24B>leonRNAi, D42-GAL4, and
D42>leonRNAi. Pairwise comparisons are shown by brackets with n.s. indicating no significance and *** for p<0.001 according to Student’s
t tests. The detail statistic numbers also see
Supplementary file 1. (
D) Immunostaining images of NMJs for Leon (green) and HRP (red) show that Leon is expressed in muscles and NMJs (arrowhead) of
w1118, and Leon signals are largely diminished in
19-2/19-2. The single Leon images (right panels) are also shown. Scale bar, 10 μm. (
E) Enlarged images show expressions of Leon (green) and Cact (red), or Leon only (bottom), in a single bouton. Scale bar, 5 μm. The orange-colored arrow crossing the bouton was quantified for the intensities (gray value) of Cact and Leon (right panel). (
F) Immunostaining images of NMJs for GFP (green) and Dlg (red) show expressions of
GFP-leon-GR in
leon1/19-2, similar to endogenous Leon expression. The single GFP image (right) is also shown. Scale bar, 10 μm.