Adipokinetic hormone activities in insect body infected by entomopathogenic nematode
Language English Country England, Great Britain Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
28254268
DOI
10.1016/j.jinsphys.2017.02.009
PII: S0022-1910(17)30008-2
Knihovny.cz E-resources
- Keywords
- AKH receptor, Akh gene expression, Metabolism, Mortality, Pyrrhocoris apterus, RNAi,
- MeSH
- Corpora Allata metabolism MeSH
- Hemolymph metabolism MeSH
- Heteroptera metabolism parasitology MeSH
- Insect Hormones metabolism MeSH
- Pyrrolidonecarboxylic Acid analogs & derivatives metabolism MeSH
- Oligopeptides metabolism MeSH
- Organ Specificity MeSH
- Rhabditida physiology MeSH
- Animals MeSH
- Check Tag
- Male MeSH
- Animals MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- adipokinetic hormone MeSH Browser
- Insect Hormones MeSH
- Pyrrolidonecarboxylic Acid MeSH
- Oligopeptides MeSH
The role of adipokinetic hormone (AKH) in the firebug Pyrrhocoris apterus adults infected by the entomopathogenic nematode (EPN) Steinernema carpocapsae was examined in this study. It was found that co-application of EPN and AKH enhanced firebug mortality about 2.5 times within 24h (from 20 to 51% in EPN vs. EPN+AKH treatments), and resulted in metabolism intensification, as carbon dioxide production in firebugs increased about 2.1 and 1.6times compared to control- and EPN-treated insects, respectively. Accordingly, firebugs with reduced expression of AKH receptors showed a significantly lower mortality (by 1.6 to 2.9-folds), and lower general metabolism after EPN+AKH treatments. In addition, EPN application increased Akh gene expression in the corpora cardiaca (1.6times), AKH level in the corpora cardiaca (1.3times) and haemolymph (1.7times), and lipid and carbohydrate amounts in the haemolymph. Thus, the outcomes of the present study demonstrate involvement of AKH into the anti-stress reaction elicited by the nematobacterial infection. The exact mechanism by which AKH acts is unknown, but results suggested that the increase of metabolism and nutrient amounts in haemolymph might play a role.
References provided by Crossref.org
Insect Body Defence Reactions against Bee Venom: Do Adipokinetic Hormones Play a Role?
