WebMas-DPII has no effect on fluid transport across the larval cryptonephric complex. M. sexta diuretic hormone (Mas-DH) and CRF-related insect diuretic peptides from Acheta domesticus, Locusta migratoria, and Periplaneta americana also cause similar increases in the production of cyclic AMP by the Malpighian tubules of both larval and adult M. sexta. Weboccurrence of the cryptonephric condition in insects has recently been written by Saini (i962). The present work is concerned only with the cryptonephric condition as it exists in the larva and adult of the mealworm, Tenebrio molitor L. The structure of the rectal complex has been worked out in considerable detail, as will
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WebMay 1, 1993 · It appears that in this complex Mas-DH is acting on a Na + /K + /2Cl − co-transporter, presumably on the basal membrane of the cryptonephric Malpighian tubules, because Mas-DH-stimulated fluid absorption by the cryptonephric complex is inhibited by bumetanide or the removal of Cl -, Na + or K + from the haemolymph side of the tissue. WebThe basal reabsorption of the cryptonephric complex is blocked when treated on the lumen side with bafilomycin A(1), an inhibitor of the H(+)-ATPase, or with amiloride, an inhibitor of the H(+)/K(+) antiporter. However, the antidiuretic-factor-stimulated fluid reabsorption is not affected by either bafilomycin A(1) or amiloride. small motorhomes with slide outs
Mechanisms and regulation of chloride transport in the …
WebAbstract. The rectal complex of the mealworm is an example of the ‘cryptonephric’ condition, wherein the distal ends of the Malpighian tubules are closely applied to the … WebInsect diuretic hormones are hormones that regulate water balance through diuretic action.. The insect excretory system, responsible for regulating water balance in the insect, comprises the Malpighian tubules and the hindgut (the ileum and rectum).Malpighian tubules secrete primary urine, most of which is passed into the hindgut where water, ions … WebFeb 1, 2000 · Europe PMC is an archive of life sciences journal literature. Antidiuretic effects of a factor in brain/corpora cardiaca/corpora allata extract on fluid reabsorption across the cryptonephric complex of Manduca sexta. small motorised scooters