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Comparative ability to detoxify alder leaf litter in field larval mosquito collections
Author(s) -
David JeanPhilippe,
Rey Delphine,
Cuany André,
Amichot Marcel,
Meyran JeanClaude
Publication year - 2000
Publication title -
archives of insect biochemistry and physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.576
H-Index - 66
eISSN - 1520-6327
pISSN - 0739-4462
DOI - 10.1002/1520-6327(200008)44:4<143::aid-arch1>3.0.co;2-a
Subject(s) - biology , piperonyl butoxide , polyphenol , esterase , chemical defense , larva , detritus , alder , plant litter , cytochrome p450 , midgut , botany , zoology , ecology , pesticide , biochemistry , antioxidant , metabolism , enzyme , nutrient , herbivore
The larvicidal effects of polyphenols from dietary alder leaf litter were investigated in different field collections of three detritivorous Aedes taxa ( Ae. detritus, Ae. cataphylla, Ae. rusticus ) and compared to the cytochrome P450 monooxygenase, glutathione S ‐transferase, and esterase activities. Larvae from polyphenol‐rich habitats had a higher tolerance for polyphenols and higher midgut cytochrome P450 and esterase activities than larvae from polyphenol‐poor habitats. Furthermore, the role of P450 enzymes in the mechanism of resistance to alder polyphenols was suggested by the synergistic effect in vivo of piperonyl butoxide in the resistant Ae. rusticus . This confirms the importance of polyphenols to larval mosquito performance, and provides evidence for the importance of specific detoxification mechanisms for tolerance to dietary polyphenols. Arch. Insect Biochem. Physiol. 44:143–150, 2000. © 2000 Wiley‐Liss, Inc.