Characterization of a set of abdominal neuroendocrine cells that regulate stress physiology using colocalized diuretic peptides in Drosophila

Multiple neuropeptides are known to regulate water and ion balance in Drosophila melanogaster. Several of these peptides also have other functions in physiology and behavior. Examples are corticotropin-releasing factor-like diuretic hormone (diuretic hormone 44; DH44) and leucokinin (LK), both of which induce fuid secretion by Malpighian tubules (MTs), but also regulate stress responses, feeding, circadian activity and other behaviors. Here, we investigated the functional relations between the LK and DH44 signaling systems. DH44 and LK peptides are only colocalized in a set of abdominal neurosecretory cells (ABLKs). Targeted knockdown of each of these peptides in ABLKs leads to increased resistance to desiccation, starvation and ionic stress. Food ingestion is diminished by knockdown of DH44, but not LK, and water retention is increased by LK knockdown only

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Detaljerede oplysninger om bidrag

Beliggenhed
  • Europe
Forfattere
  • Shireen Davies
  • Meet Zandawala
Formål
  • Dissemination
Filtype
Document
Filstørrelse
4.59 MB
Oprettet den
17-10-2017
Oprindelsessprog
English
Projektets officielle hjemmeside
nEUROSTRESSPEP
Licens
CC BY

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