Neurohormones in insect stress: A review

Author:

Peric-Mataruga Vesna1ORCID,Nenadovic Vera1,Ivanovic Jelisaveta1

Affiliation:

1. Odeljenje za fiziologiju i biohemiju insekata, Institut za biološka istraživanja 'Siniša Stanković', Beograd

Abstract

The neurohormones are the master regulators of all life processes in insects and they create a strategy of stress protecting events. Neurohormones are synthesized mainly in insect brain neurosecretory neurons. Various stressors of different intensity cause specific changes which influence on neurosecretory neurons activity and synthesis of neurohormones (biogene amines, ecdysiotropins, ecdysiostatins, allatoregulatory neurohormones, adipokinetic neurohormones, etc.). Biogene amines in insects may function as neurohormones controlling carbohydrate and lipid metabolism as the primary response of the insects to the effect of stressors. Intermediary metabolism in insects is mainly regulated by adipokinetic hormones which supply organism by energy especially in extreme conditions. Stress induces changes in release of ecdysioregulatory and allatoregulatory neurohormones and modificates ecdysones and juvenile hormones synthesis in prothoracic gland and corpora allata. The involvement of hormones of an ecdysteroid or JH type in response to stress creates the danger of an untimely induction of morphogenetic process in target cells. Limiting the quantity of secreted hormones and shortening the period when target cells are sensitive to morphogenetic stimuli removes this danger.

Publisher

National Library of Serbia

Subject

General Agricultural and Biological Sciences,General Biochemistry, Genetics and Molecular Biology

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