The effect of certain anions on muscle resting potential in Tenebrio molitor
Janiszewski, L.; Olszewska, E.
Acta Physiologica Polonica 36(2): 112-116
1985
ISSN/ISBN: 0044-6033 PMID: 3837589 Document Number: 265811
Experiments were carried out on longitudinal ventral muscle of the mealworm larvae (Tenebrio molitor) using conventional microelectrode methods. Both sodium nitrate and sodium sulphate depolarized the fibres markedly, whereas sodium propionate exerted an hyperpolarizing influence. It is concluded that the differences in the mode of action are due to different permeabilities of the membrane to the applied anions. The results obtained confirm also the concept of a multi-ionic electrode with respect to insect muscle fibers.