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Keywords: Malpighian tubules
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Journal Articles
J Exp Biol (2019) 222 (11): jeb204750.
Published: 3 June 2019
...Dennis Kolosov; Sima Jonusaite; Andrew Donini; Scott P. Kelly; Michael J. O'Donnell ABSTRACT The Malpighian tubules (MTs) and hindgut together act as the functional kidney in insects. MTs of caterpillars are notably complex and consist of several regions that display prominent differences in ion...
Journal Articles
J Exp Biol (2019) 222 (10): jeb203000.
Published: 22 May 2019
...), the coordinated activity of the Malpighian tubules and anterior midgut maintains water and ion balance during the post-prandial diuresis. Three to four hours after the meal, the diuretic process finishes, and the animal enters an antidiuretic state to ensure water conservation until the next blood intake...
Journal Articles
J Exp Biol (2018) 221 (7): jeb177089.
Published: 6 April 2018
.... Larval stage mosquitoes must deal with the potential dilution of their haemolymph in freshwater, whereas the haematophagus A. aegypti female faces the challenge of excess ion and water intake after a blood meal. The excretory system, composed of the Malpighian tubules (MTs) and hindgut, is strictly...
Journal Articles
J Exp Biol (2018) 221 (6): jeb174904.
Published: 19 March 2018
... quickly, and better maintained hemolymph K + balance in the cold. The improvements in chill tolerance coincided with increased Malpighian tubule fluid secretion and better maintenance of K + secretion rates in the cold, as well as reduced rectal K + reabsorption in cold-acclimated flies. To test whether...
Includes: Supplementary data
Journal Articles
J Exp Biol (2018) 221 (6): jeb168419.
Published: 19 March 2018
... cofactors, signalling, storage or excretion. Here we identify zinc storage granules as the insect's major zinc reservoir in principal Malpighian tubule epithelial cells of Drosophila melanogaster . The concerted action of Adaptor Protein-3, Rab32, HOPS and BLOC complexes as well as of the white-scarlet...
Journal Articles
J Exp Biol (2016) 219 (17): 2596–2607.
Published: 1 September 2016
... loads largely outside the ECF, in the lumen of the gut. This strategy may be related to the apparent absence of Malpighian tubules in aphids. Other insects can suspend ECF homeostasis altogether in order to survive extreme temperatures. Thus, ECF homeostasis in insects is highly dynamic and plastic...
Journal Articles
J Exp Biol (2009) 212 (18): 2977–2982.
Published: 15 September 2009
...Alan T. Marshall; Peta L. Clode SUMMARY Elemental imaging by X-ray microanalysis of fully frozen-hydrated samples shows that when Malpighian tubules of the black field cricket( Teleogryllus oceanicus L.) are incubated in saline in which Rb + has been substituted for K + , Rb + replaces much...
Journal Articles
J Exp Biol (2009) 212 (3): 413–423.
Published: 1 February 2009
... and by Malpighian tubules (MTs) in Drosophila. The kidney serves as an excellent model organ to investigate the cellular and molecular mechanisms underlying organogenesis. Mammals and Drosophila share common principles of renal development. Tissue homeostasis, which is accomplished through self-renewal...
Journal Articles
J Exp Biol (2008) 211 (1): 42–48.
Published: 1 January 2008
...Andrew Donini; Michael J. O'Donnell; Ian Orchard SUMMARY The effects of corticotropin-releasing factor (CRF)-related (ZooneDH),calcitonin (CT)-related (RhoprDH 31 ) and kinin-related (leucokinin I) peptides on the ion composition of fluid secreted by upper Rhodnius prolixus Malpighian tubules...
Journal Articles
J Exp Biol (2007) 210 (24): 4359–4367.
Published: 15 December 2007
... body water was elevated during acute exposure to acidic media. During chronic exposure, total body water was decreased and Malpighian tubule mitochondrial luminosity, quantified using Mitotracker Green FM, increased. Malpighian tubule secretion rates and energy demands thus appear to increase...
Journal Articles
J Exp Biol (2007) 210 (11): 1986–1991.
Published: 1 June 2007
...Maria Soledad Santini; Jorge Rafael Ronderos SUMMARY Haematophagous insects incorporate a large amount of blood with each meal,producing a big quantity of urine in a few hours to eliminate the excess water and Na + . Malpighian tubules (MTs) have traditionally been seen as a system that responds...
Includes: Multimedia, Supplementary data
Journal Articles
J Exp Biol (2005) 208 (12): 2227–2236.
Published: 15 June 2005
...Douglas S. G. Neufeld; Ross Kauffman; Zachary Kurtz SUMMARY We demonstrate the presence of an efficient, multispecific transport system for excretion of organic anions in the Malpighian tubules of the cricket Acheta domesticus using fluorescein (FL) as a model substrate. Malpighian tubules rapidly...
Journal Articles
J Exp Biol (2003) 206 (21): 3845–3856.
Published: 1 November 2003
...Klaus W. Beyenbach SUMMARY We have studied Malpighian tubules of Aedes aegypti using a variety of methods: Ramsay fluid secretion assay, electron probe analysis of secreted fluid, in vitro microperfusion and two-electrode voltage clamp. Collectively, these methods have allowed us to elucidate...
Journal Articles
J Exp Biol (2003) 206 (6): 959–965.
Published: 15 March 2003
...U. I. M. Wiehart; G. Klein; P. Steels; S. W. Nicolson; E. Van Kerkhove SUMMARY The presence of ATP-regulated K + (K ATP ) channels in Tenebrio molitor Malpighian tubules was investigated by examining the effect of glibenclamide on both fluid secretion and basolateral membrane potentials ( V bl...
Journal Articles
J Exp Biol (2003) 206 (6): 949–957.
Published: 15 March 2003
...U. I. M. Wiehart; S. W. Nicolson; E. Van Kerkhove SUMMARY Malpighian tubules of the mealworm Tenebrio molitor were isolated for intracellular measurement of basolateral ( V bl ) and,indirectly, apical ( V ap ) membrane potentials. In control Ringer (50 mmol l -1 K + , 140 mmol l -1 Na + ), V bl...
Journal Articles
J Exp Biol (1993) 177 (1): 287–292.
Published: 1 April 1993
...S. H. P. MADDRELL; M. J. O'DONNELL 4 12 1992 © 1993. 1993 potassium ions sodium ions excretion fluid secretion Rhodnius prolixus salivary glands Calliphora vicina Malpighian tubules epithelial transport gramicidin D. 287J. exp. Biol. 177, 287 292 (1993) Printed...
Journal Articles
J Exp Biol (1992) 162 (1): 331–338.
Published: 1 January 1992
... postfeeding Manduca sexta larvae. However, Manduca - DH was reported to have no effect on Malpighian tubules in vitro . Manduca -DH and [Nle 2,11 ]- Manduca -DH were synthesized in Texas and assayed in London on isolated Malpighian tubules of Acheta domesticus. Manduca - DH stimulated fluid secretion by about...
Journal Articles
J Exp Biol (1991) 161 (1): 61–75.
Published: 1 November 1991
... antibodies to defined subunits of the midgut ATPase. The antibodies labelled the membrane projections of the goblet cell apical plasma membrane, the site of active K + transport. Furthermore, an immunologically related epitope was localized in the apical brush border of Manduca Malpighian tubules...
Journal Articles
J Exp Biol (1991) 158 (1): 165–180.
Published: 1 July 1991
...ANGELA WENNING; U. T. E. GREISINGER; JACQUES P. PROUX Fluid secretion by isolated upper and lower portions of Malpighian tubules in the centipede Lithobius forficatus L. was studied. Ion requirements, cellular and transepithelial potentials, dependence on external osmolality and the effects...
Journal Articles
J Exp Biol (1989) 145 (1): 63–78.
Published: 1 September 1989
...DAVID B. HERBST; TIMOTHY J. BRADLEY The alkali fly, Ephydra hians Say, inhabits alkaline salt lakes which can contain concentrations of dissolved carbonate and bicarbonate as high as 500 mmol l −1 . Larvae of the alkali fly possess two pairs of Malpighian tubules. The posterior pair has...