Inhibition (using Hsap\KCNJ2UAS.EGFP) of Scer\GAL4GMR83H09 cells in larvae significantly reduces the phase delay between contraction of transverse muscle LT2 and longitudinal muscle LO1 during peristaltic waves, compared to controls.
Acute, high intensity optogenetic activation (using Cnoc\ChR1Cs.IVS.20xUAS.Venus with 617 nm (red) light) of Scer\GAL4GMR83H09 cells in larvae induces relaxation of transverse muscle LT2, but not longitudinal muscle LO1, compared to baseline; chronic, low-level stimulation causes transverse muscle LT2 to contract later than normal in the locomotor cycle, increasing the phase offset between LT2 and LO1 contractions, compared to baseline.