BARIUM AND CALCIUM BLOCK BACILLUS-THURINGIENSIS SUBSPECIES KURSTAKI DELTA-ENDOTOXIN INHIBITION OF POTASSIUM CURRENT ACROSS ISOLATED MIDGUT OF LARVAL MANDUCA-SEXTA
- 1 July 1988
- journal article
- research article
- Vol. 137, 277-286
Abstract
Ba2+ and Ca2+ prevent and reverse the Btk .delta.-endotoxin inhibition of the short-ciruit current in isolated lepidopteran midgut. These findings support the K+ pump-leak steady-state model for midgut K+ homeostasis and the K+ channel mechanism of Bt toxin action. They provide a new tool with which to study the interactions between Bt toxin and midgut cell membranes.This publication has 10 references indexed in Scilit:
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