... across the apical membrane reduces the core diameter to values near the optical diameter of the tubule lumen. The double cable confirms this conclusion as follows. Fig. 11. Estimates of electrophysiological variables in the Malpighian tubule of the yellow fever mosquito. All values are normalized...

...Ming-Jiun Yu; Klaus W. Beyenbach SUMMARY The diuretic peptide leucokinin is known to increase fluid secretion in Malpighian tubules of the yellow fever mosquito Aedes aegypti by increasing a transepithelial Cl - conductance. The present study sought to examine whether stellate cells provided...

... hormones enable hematophagous and probably also phytophagous insects to deal with enormous dietary loads, thereby contributing to the evolutionary success of insects. Malpighian tubules of the yellow fever mosquito differ morphologically from other epithelia in two obvious ways: (1) the abundance...

...Daniel S. Wu; Klaus W. Beyenbach SUMMARY The relationship between the intracellular ATP concentration[ATP] i and the electrical properties of principal cells was investigated in Malpighian tubules of the yellow fever mosquito, Aedes aegypti . Under control conditions, [ATP] i was 0.91 mmol l -1...