Malpighian tubule
Electrical transients in the cell volume response to cyclic AMP of the tsetse fly Malpighian tubule
... proximal tubule of the mammalian kidney (Laprade, 1994), following both iso-osmotic and hypo-osmotic volume perturbation (luminal addition of glucose and alanine, or hypo-osmotic shock, ...
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Insights into the Malpighian tubule from functional genomics
... the Malpighian tubule has led to a detailed understanding of fluid transport and its control across several ...insect Malpighian tubule have ...the Malpighian tubule is highly ...
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K+ reabsorption by the lower Malpighian tubule of Rhodnius prolixus: inhibition by Ba2+ and blockers of H+/K+ ATPases
... almost no effect on KCl reabsorption by the lower tubule (Fig. 3), in marked contrast to the dramatic effects of basolateral application of the same drugs on ion transport by the upper Malpighian ...
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Voltages and resistances of the anterior Malpighian tubule of Drosophila melanogaster
... of Malpighian tubules in the fruit fly Drosophila melanogaster has discouraged measurements of the transepithelial electrical ...melanogaster Malpighian tubules using conventional microelectrodes and PClamp ...
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Effects of leucokinin VIII on Aedes Malpighian tubule segments lacking stellate cells
... five Malpighian tubules, which empty their secretions into the gut at the junction of the midgut and the ...the Malpighian tubule, accounting for 79–86% of the cell population (Satmary and Bradley, ...
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Identification of Genes Controlling Malpighian Tubule and Other Epithelial Morphogenesis in Drosophila melanogaster
... on Malpighian tubule development esophagus that would form the proventriculus becomes (barr, fas, and thr), as well as their effects on hindgut elongated, but does not initiate either keyhole forma- (fas, ...
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Intracellular ion activities in Malpighian tubule cells of Rhodnius prolixus: evaluation of Na+ K+ 2Cl cotransport across the basolateral membrane
... Stock solutions of bumetanide (Sigma) were prepared in ethanol so that the maximum final concentration of ethanol was ⭐ 0.1 % (v/v). Previous studies have shown that Malpighian tubule secretion rate is ...
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Anti diuresis in the blood feeding insect Rhodnius prolixus Stål: the peptide CAP2b and cyclic GMP inhibit Malpighian tubule fluid secretion
... on Malpighian tubules are rare in insects, however (Spring, ...of Malpighian tubule fluid secretion by an anti-diuretic hormone has been demonstrated in crickets (Spring et ...reducing tubule ...
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Transcellular and Paracellular Flow of Water During Secretion in the Upper Segment of the Malpighian Tubule of Rhodnius Prolixus: Solvent Drag of Molecules of Graded Size
... Regression parameters of net solute secretory flux per unit bath concentration J*n /Ci studied as a function of net secretory volume flow JJ in the Malpighian tubule distal segment Probi[r] ...
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A Malpighian Tubule Lime Gland in an Insect Inhabiting Alkaline Salt Lakes
... The proximal region of the lime gland tubules contains primary cells which are distinct in type from those of the distal and storage segments of the same tubule Fig.. The cells are much [r] ...
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Stimulation of sodium transport and fluid secretion by ouabain in an insect malpighian tubule
... Previous work on transport by the Malpighian tubules of Rhodnius O'Donnell & Maddrell, 1984 has suggested a model in which, during rapid fluid secretion stimulated by 5-HT or the natural[r] ...
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Changes in gut and Malpighian tubule transport during seasonal acclimatization and freezing in the gall fly Eurosta solidaginis
... Effects of the metabolic poison (KCN) and the specific Na + /K + -ATPase inhibitor (ouabain) on dye uptake by gut and MT are consistent with species-specific differences reported by other investigators. In E. ...
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Isoform and cell specific function of tyrosine decarboxylase in the Drosophila Malpighian tubule
... the tubule was pulled out of the droplet and wrapped around a pin such that the cut end of the ureter and lower section of the other branch were out of the aqueous ...each tubule were normalized to the mean ...
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Acid Base Variables in Malpighian Tubule Secretion and Response to Acidosis
... Phosphate, urate and total ammonia levels in tubule fluid As shown in Table 3, phosphate levels in tubule fluid increased with time in uninjected locusts, and this was significantly enha[r] ...
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Dehydration triggers ecdysone-mediated recognition-protein priming and elevated anti-bacterial immune responses in Drosophila Malpighian tubule renal cells
... Background: Drosophila is a powerful model for the study of factors modulating innate immunity. This study examines the effect of water-loss dehydration on innate immune responsiveness in the Drosophila renal system ...
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Characterization of transepithelial potential oscillations in the Drosophila Malpighian tubule
... of the TEP. Short-term (6–8 min) treatment of tubules with 300 µmol l −1 DIDS had no consistent effect on the TEP (N=4, data not shown). However, tubules that had been incubated in 100 µmol l −1 DIDS for 50–84 min were ...
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Metabolic Support of Chloride dependent Short circuit Current Across Locust Rectum
... However, lipids, sugars and organic acids are also present in insect haemolymph Altman, 1961, and locust Malpighian tubule fluid contains several amino acids and glucose, albeit at much [r] ...
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The neuropeptide CCHamide2 regulates diuresis in the Chagas disease vector Rhodnius prolixus
... the Malpighian tubules and the anterior midgut, RhoprCCHa2 has opposite effects on the tubules and anterior ...stimulated Malpighian tubules (see Figs 3 and ...stimulating Malpighian tubule ...
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A Novel Drosophila Alkaline Phosphatase Specific to the Ellipsoid Body of the Adult Brain and the Lower Malpighian (Renal) Tubule
... the Malpighian tubule (Skaer 1993) allows a more detailed examination of this enigmatic enzyme than would normally be possible and has provided novel insights into the tubule ...lower tubule ...
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GRAMICIDIN SWITCHES TRANSPORT IN INSECT EPITHELIA FROM POTASSIUM TO SODIUM
... the rate of fluid secretion (B) by a Malpighian tubule isolated from a fifth-instar Rhodnius prolixus. At 15min (vertical line) after the start of the experiment, 10 m l of saline containing 40 m g ml 21 ...
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