The effect of heat stress on the activity of A1 and A2 neurosecretory neurons of Morimus funereus (Coleoptera: Cerambycidae) larvae

Title:

The effect of heat stress on the activity of A1 and A2 neurosecretory neurons of Morimus funereus (Coleoptera: Cerambycidae) larvae

Creator:

Leković, Snežana, Lazarević, Jelica, Nenadović, Vera, and Ivanović, Jelisaveta

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:27324974-667c-4c8c-9392-c8b96b72e9ce
uuid:27324974-667c-4c8c-9392-c8b96b72e9ce

Subject:

Heat stress, protocerebrum medial neurosecretory neurons, midgut amylase, midgut protease, Morimus funereus, Cerambycidae, and 5th larval instar

Type:

article, model:article, and TEXT

Description:

A study on the effect of heat stress on the activity of the medial A1 and A2 neurosecretory neurons (NSN), and the activity of midgut a-amylase and protease was performed on the fifth larval instar of Morimus funereus. Exposure of the larvae to 35°C led to a decrease in the activity of both A1 and A2 NSN, the former being more marked than the latter. These neurons responded differently to heat stress in terms of neurosecretory material synthesis and release. The changes in the size of both A1 NSN and their nuclei and protease activity in the larvae exposed to elevated temperature were significantly correlated, which suggests that A1 NSN play a role in the regulation of the activity of this enzyme during heat stress. The significant correlations between the size of A2 NSN and protease activity in the controls, and the size of both A2 NSN and their nuclei and amylase activity in larvae exposed to heat stress, similarly may mean that A2 NSN regulate both digestive enzyme activities depending on environmental temperature.

Language:

English

Rights:

http://creativecommons.org/publicdomain/mark/1.0/
policy:public

Source:

European Journal of Entomology | 2001 Volume:98 | Number:1

Harvested from:

CDK

Metadata only:

false