Potassium channel blockers unmask electrical excitability of insect follicles

Abstract Standard techniques for intracellular recording and current injection were used to determine if the developing ovarian follicles of six species of insect were electrically excitable. Follicles were dissected from the panoistic ovarioles of Locusta migratoria and Periplaneta americana , the polytrophic meroistic ovarioles of the fruit fly Drosophila rnelanogaster and the silkworm moths Hyalophora cecropia and H. Columbia , and the …