Post‐eclosion diuresis in adult <i>Heliothis zea</i>

Bushman, David W.; Raina, Ashok K.; Nelson, Jonathan D.

doi:10.1111/j.1365-3032.1989.tb01108.x

Cited by 7 publications

(4 citation statements)

References 8 publications

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“…They presented evidence that this factor lacked DH effects on older adults, and concluded that post-feeding diuresis in the monarch butterfly is controlled by a yet undefined nervous mechanism. Recently, Bushman et al [38] using crude brain or sub-esophageal homogenates reported post adult eclosion fluid loss in vivo and in vitro in Heliothis zea.…”

Section: Discussionmentioning

confidence: 99%

Mode of action studies on a Manduca sexta diuretic hormone

Troetschler¹,

Kramer²

1992

Arch Insect Biochem Physiol

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The mode of action of a diuretic hormone from pharate adult Manduca sexta heads, which triggers fluid loss in M. sexta larvae and Pieris rapae adults, was studied. In vivo, Mas-DH (M. sexta diuretic hormone) decreased fluid absorption from larval recta, and increased levels of the second messenger CAMP in recta and Malpighian tubules (Mt) from larvae, and in fat body of larvae and adult M. sexta. In vitro, Mas-DH triggered minor changes in fluid loss from adult Mt, but did not affect levels of CAMP in Mt from larvae, pharate adults, or adults, though it elevated CAMP levels in fat body of these stages. 0 1992 Wiley-Liss, Inc.

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Section: Discussionmentioning

confidence: 99%

Mode of action studies on a Manduca sexta diuretic hormone

Troetschler¹,

Kramer²

1992

Arch Insect Biochem Physiol

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“…The reader who has come this far may wonder whether a dynamic paracellular pathway may be unique to gorging hematophagous insects and therefore irrelevant to other epithelia. On the contrary, the ability to commence a diuresis on short notice is also observed in phytophagous insects that gorge on the sap of plants 91 . Moreover, insects leaving their aquatic habitats with first flight undergo a so‐called eclosion diuresis that lightens the load 92 .…”

Section: Tight and Septate Junctionsmentioning

confidence: 99%

A dynamic paracellular pathway serves diuresis in mosquito Malpighian tubules

Beyenbach

2012

Annals of the New York Academy of Sciences

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Female mosquitoes gorge on vertebrate blood, a rich nutrient source for developing eggs. But gorging meals increase the risk of predation. Mosquitoes are quick to reduce the flight payload with a potent diuresis. Diuretic peptides of the insect kinin family induce a tenfold-reduction in the paracellular resistance of Malpighian tubules and increase the paracellular permeation of Cl−, the counterion of the transepithelial secretion of Na+ and K+. As a result, the transepithelial secretion of NaCl and KCl and water increases. Insect kinins signal to the opening of the paracellular pathway via G protein-coupled receptors and the elevation of intracellular [Ca2+], which leads to the reorganization of the cytoskeleton associated with the septate junction. The reorganization may affect the septate junctional proteins that control the barrier and permselectivity properties of the paracellular pathway. The proteins involved in the embryonic formation of the septate junction and in epithelial polarization are largely known for ectodermal epithelia, but the proteins that form and mediate the dynamic functions of the septate junction in Malpighian tubules remain to be determined.

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“…Neurohormonal control of post-eclosion diuresis has been demonstrated in one species of moth, Heliothis zea (Noctuidae) (Bushman et al, 1989). The aim of the present work was to investigate the extent and hormonal basis of diuresis in the flightless silkmoth Bombyx mori L.…”

mentioning

confidence: 97%

Post‐eclosion diuresis in a flightless insect, the silkmoth Bombyx mori

Strathie

Nicolson

1993

Physiological Entomology

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Abstract. Although the silkmoth, Bombyx mori L., has lost the ability to fly, it has retained a post‐eclosion diuresis. In moths removed from their cocoons before eclosion, or in those which failed to spin cocoons as larvae, the weight loss due to diuresis was 14% of the eclosion body weight in males. Moths which used labial fluid to escape from their cocoons showed a correspondingly smaller diuresis (5%). Both urine and labial fluid had high potassium and low sodium concentrations. Unlike post‐eclosion diuresis in butterflies, however, the urine was isosmotic to the haemolymph. In vitro preparations of B.mori Malpighian tubules were stimulated by cyclic AMP, B.mori brain extracts and Manduca sexta diuretic peptide (Mas‐DP I).

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Post‐eclosion diuresis in adult Heliothis zea

Cited by 7 publications

References 8 publications

Mode of action studies on a Manduca sexta diuretic hormone

Mode of action studies on a Manduca sexta diuretic hormone

A dynamic paracellular pathway serves diuresis in mosquito Malpighian tubules

Post‐eclosion diuresis in a flightless insect, the silkmoth Bombyx mori

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