Comparative capability to detoxify vegetable allelochemicals by larval mosquitoes

In order to confirm the phytotoxicological basis for the ecological specialization of larval culicine fauna among different subalpine mosquito breeding sites, we compared the capability of six different Aedes larval taxa or populations of different ecological origin to detoxify dietary leaf litter o...

Full description

Saved in:
Bibliographic Details
Published in:Journal of chemical ecology 2004-07, Vol.30 (7), p.1381-1391
Main Authors: Tilquin, M, Meyran, J.C, Marigo, G
Format: Article
Language:English
Subjects:
Aedes
Aedes - drug effects
Aedes - metabolism
Aedes - physiology
Aedes aegypti
Animal and plant ecology
Animal, plant and microbial ecology
Animals
Aquatic insects
Autoecology
Biodiversity
Biodiversity and Ecology
Biological and medical sciences
Breeding sites
Culicidae
Detoxification
Ecology, environment
Environment
Environmental Sciences
Fundamental and applied biological sciences. Psychology
General aspects
insoluble toxic fraction
Larva - drug effects
Larva - physiology
larvae
Leaf litter
Leaves
Life Sciences
metabolic detoxification
Molecular weight
Mosquitoes
Pheromones - pharmacology
Plant Leaves - chemistry
plant litter
plant-insect relations
Populus - chemistry
Species Specificity
Toxicants
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In order to confirm the phytotoxicological basis for the ecological specialization of larval culicine fauna among different subalpine mosquito breeding sites, we compared the capability of six different Aedes larval taxa or populations of different ecological origin to detoxify dietary leaf litter originating from the environmental vegetation. Detoxification experiments were performed through in vitro digestion of a toxic leaf litter fraction using larval extracts as the enzymatic sources. Comparison of toxicological and detoxifying properties among the different larval samples indicates an association between their tolerance to leaf litter toxicants and their detoxification capability, which vary according to ecological origin. The fact that the detoxifying factor within the larval extracts appears to be a protein-like compound with a molecular weight bigger than 30 kDa suggests the possible involvement of detoxifying enzymes in larval tolerance to leaf litter toxicants. This is congruent with previous biochemical data that suggests the involvement of cytochrome P450 monooxygenase and esterase activities in the detoxification process.
ISSN:0098-0331
1573-1561
DOI:10.1023/B:JOEC.0000037746.02276.3a