J 2018

Adipokinetic hormone and adenosine interfere with nematobacterial infection and locomotion in Drosophila melanogaster

IBRAHIM, Emad, Pavel DOBEŠ, Martin KUNC, Pavel HYRŠL, Dalibor KODRÍK et. al.

Basic information

Original name

Adipokinetic hormone and adenosine interfere with nematobacterial infection and locomotion in Drosophila melanogaster

Name in Czech

Adipokinetic hormone and adenosine interfere with nematobacterial infection and locomotion in Drosophila melanogaster

Authors

IBRAHIM, Emad (818 Egypt), Pavel DOBEŠ (203 Czech Republic, belonging to the institution), Martin KUNC (203 Czech Republic, belonging to the institution), Pavel HYRŠL (203 Czech Republic, guarantor, belonging to the institution) and Dalibor KODRÍK (203 Czech Republic)

Edition

Journal of Insect Physiology, Kidlington, England, Elsevier, 2018, 0022-1910

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30105 Physiology

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.862

RIV identification code

RIV/00216224:14310/18:00100913

Organization unit

Faculty of Science

UT WoS

000434751100021

Keywords (in Czech)

Adipokinetický hormon; adenosin; Drosophila; hlístice; oxidativní stres; lokomoce

Keywords in English

Adipokinetic hormone; adenosine; Drosophila; nematode; oxidative stress; locomotion

Tags

International impact, Reviewed
Změněno: 23/4/2024 11:15, Mgr. Michal Petr

Abstract

V originále

This study examined how adipokinetic hormone (AKH) and adenosine affect defense responses in Drosophila melanogaster larvae infected with entomopathogenic nematodes (EPN, Steinernema carpocapsae and Heterorhabditis bacteriophora). Three loss-of-function mutant larvae were tested: Akh1, AdoR1 (adenosine receptor), and Akh1 AdoR1. Mortality decreased in all mutants post-EPN infection compared with the control (w1118). Additionally, co-application of external AKH with EPN significantly increased mortality beyond rates observed in EPN-only treatment, while also elevating carbon dioxide production, a measure of metabolism. Furthermore trehalose levels increased in both w1118 and Akh1 larvae post-EPN infection, but the latter group exhibited a lower increase and total trehalose levels. Interestingly, baseline trehalose was relatively high in untreated AdoR1 and Akh1 AdoR1 mutants, with levels remaining unaffected by infection. Infection also elevated haemolymph lipid content overall, but the different mutations did not substantially influence this change. In contrast, haemolymph protein content dropped after EPN infection in all tested groups, but this decline was more intense among Akh1. In uninfected larvae mutations decreased antioxidative capacity in Akh1 and increased in AdoR1, however, its post-infection increases were similar in all mutants, suggesting that antioxidant response in Drosophila involves mechanisms also beyond AKH and adenosine. Furthermore, AKH application in w1118 larvae significantly increased movement distance and percentage of larval activity, but reduced velocity. Mutations of Akh and AdoR did not strongly affect locomotion.

In Czech

This study examined how adipokinetic hormone (AKH) and adenosine affect defense responses in Drosophila melanogaster larvae infected with entomopathogenic nematodes (EPN, Steinernema carpocapsae and Heterorhabditis bacteriophora). Three loss-of-function mutant larvae were tested: Akh1, AdoR1 (adenosine receptor), and Akh1 AdoR1. Mortality decreased in all mutants post-EPN infection compared with the control (w1118). Additionally, co-application of external AKH with EPN significantly increased mortality beyond rates observed in EPN-only treatment, while also elevating carbon dioxide production, a measure of metabolism. Furthermore trehalose levels increased in both w1118 and Akh1 larvae post-EPN infection, but the latter group exhibited a lower increase and total trehalose levels. Interestingly, baseline trehalose was relatively high in untreated AdoR1 and Akh1 AdoR1 mutants, with levels remaining unaffected by infection. Infection also elevated haemolymph lipid content overall, but the different mutations did not substantially influence this change. In contrast, haemolymph protein content dropped after EPN infection in all tested groups, but this decline was more intense among Akh1. In uninfected larvae mutations decreased antioxidative capacity in Akh1 and increased in AdoR1, however, its post-infection increases were similar in all mutants, suggesting that antioxidant response in Drosophila involves mechanisms also beyond AKH and adenosine. Furthermore, AKH application in w1118 larvae significantly increased movement distance and percentage of larval activity, but reduced velocity. Mutations of Akh and AdoR did not strongly affect locomotion.

Links

GA17-03253S, research and development project
Name: Hormonální kontrola hmyzího obranného systému
Investor: Czech Science Foundation