Article Publish Status: FREE
Abstract Title:

Combined neonicotinoid pesticide and parasite stress alter honeybee queens' physiology and survival.

Abstract Source:

Sci Rep. 2016 Aug 31 ;6:31430. Epub 2016 Aug 31. PMID: 27578396

Abstract Author(s):

Claudia Dussaubat, Alban Maisonnasse, Didier Crauser, Sylvie Tchamitchian, Marc Bonnet, Marianne Cousin, André Kretzschmar, Jean-Luc Brunet, Yves Le Conte

Article Affiliation:

Claudia Dussaubat


Honeybee colony survival strongly relies on the queen to overcome worker losses exposed to combined stressors like pesticides and parasites. Queen's capacity to withstand these stressors is however very little known. The effects of the common neonicotinoid pesticide imidacloprid in a chronic and sublethal exposure together with the wide distributed parasite Nosema ceranae have therefore been investigated on queen's physiology and survivorship in laboratory and field conditions. Early physiological changes were observed on queens, particularly the increase of enzyme activities (catalase [CAT] and glutathione-S-transferase [GST] in the heads) related to protective responses to xenobiotics and oxidative stress against pesticide and parasite alone or combined. Stressors also alter the activity of two other enzymes (carboxylesterase alpha [CaEα] and carboxylesterase para [CaE p] in the midguts) involved in metabolic and detoxification functions. Furthermore, single and combined effects of pesticide and parasite decrease survivorship of queens introduced into mating hives for three months. Because colony demographic regulation relies onqueen's fertility, the compromise of its physiology and life can seriously menace colony survival under pressure of combined stressors.

Study Type : Insect Study

Print Options

Key Research Topics

Sayer Ji
Founder of GreenMedInfo.com

Subscribe to our informative Newsletter & get Nature's Evidence-Based Pharmacy

Our newsletter serves 500,000 with essential news, research & healthy tips, daily.

Download Now

500+ pages of Natural Medicine Alternatives and Information.

This website is for information purposes only. By providing the information contained herein we are not diagnosing, treating, curing, mitigating, or preventing any type of disease or medical condition. Before beginning any type of natural, integrative or conventional treatment regimen, it is advisable to seek the advice of a licensed healthcare professional.

© Copyright 2008-2022 GreenMedInfo.com, Journal Articles copyright of original owners, MeSH copyright NLM.