منابع مشابه
Insect physiology: The emerging story of ecdysis
The discovery of a new insect peptide hormone that triggers ecdysis - shedding of an old cuticle - has revealed hidden layers of intricacy about an insect behavior previously thought to be mediated by a single neuropeptide.
متن کاملProphenoloxidase-Mediated Ex Vivo Immunity to Delay Fungal Infection after Insect Ecdysis
Skin immunity protects animals from airborne pathogen infection. Unlike mammals, arthropods, including insects, undergo periodic ecdysis to grow and develop. Newly molted insects emerge with unsclerotized thin cuticles but successfully escape pathogenic infections during the post-molt period. Here we show that prophenoloxidases (PPOs) in molting fluids remain bioactive on the integument and imp...
متن کاملExcitatory and inhibitory roles of central ganglia in initiation of the insect ecdysis behavioural sequence.
Insects shed their old cuticle by performing the ecdysis behavioural sequence. To activate each subunit of this set of programmed behaviours in Manduca sexta, specific central ganglia are targeted by pre-ecdysis-triggering (PETH) and ecdysis-triggering (ETH) hormones secreted from Inka cells. PETH and ETH act on each abdominal ganglion to initiate, within a few minutes, pre-ecdysis I and II, re...
متن کاملNeuromodulation of the locust frontal ganglion during the moult: a novel role for insect ecdysis peptides.
In insects, continuous growth requires the periodic replacement of the exoskeleton during the moult. A moulting insect displays a stereotypical set of behaviours that culminate in the shedding of the old cuticle at ecdysis. Moulting is an intricate process requiring tightly regulated physiological changes and behaviours to allow integration of environmental cues and to ensure the proper timing ...
متن کاملEvidence for a conserved CCAP-signaling pathway controlling ecdysis in a hemimetabolous insect, Rhodnius prolixus
A vital feature in the success of Ecdysozoa is their ability to shed their exoskeleton (a process called ecdysis) such that they can grow or change their morphology. In holometabolous insects, these behaviors are orchestrated by the sequential actions of neuropeptides, one of which is crustacean cardioactive peptide (CCAP). Little is known about the control of ecdysis in hemimetabolous insects....
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ژورنال
عنوان ژورنال: Agricultural and Biological Chemistry
سال: 1982
ISSN: 0002-1369
DOI: 10.1080/00021369.1982.10865362