ISSN:
0739-4462
Keywords:
Asteraceae
;
ultraviolet light
;
spin-trapping
;
Chemistry
;
Food Science, Agricultural, Medicinal and Pharmaceutical Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Biology
Notes:
The present study documents that the secondary plant metabolites, especially α-terthienyl, exert phototoxic action through inhibition of certain enzymes and generation of singlet oxygen. Some of the reports have emerged exhibiting involvement of free radical generation in vitro by α-terthienyl. We provide evidence for the generation of a free radical viz., superoxide anion radical, by α-terthienyl employing spin-trapping techniques, probably due to the extension of the latter reaction. On the basis of this observation the phototoxic action of α-terthienyl on Aedes aegypti larvae is explained. © 1992 Wiley-Liss, Inc.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/arch.940190405
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