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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2016.4
- 수록면
- 310 - 315 (6page)
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Coumarin is a phenolic compound that mainly affects the liver due to its metabolization into a toxic compound. The deterrent and ovicidal activities of coumarin in insect models such as Drosophila melanogaster have been re-ported. Here we explore the molecular mechanisms by which these insects protect themselves and their eggs from this toxic plant metabolite. Coumarin was fatal to the flies in a dosage-dependent manner. However, coumarin feeding could be inhibited through activation of the aversive gustatory receptor neurons (GRNs), but not the olfactory receptor neurons. Furthermore, three gustatory receptors, GR33a, GR66a, and GR93a, functioned together in coumarin detection by the proboscis. However, GR33a, but not GR66a and GR93a, was required to avoid coumarin during oviposition, with a choice of the same substrates provided as in binary food choice assay. Taken together, these findings suggest that anti-feeding activity and oviposition to avoid coumarin occur via separate mechanisms.
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참고문헌 (39)
참고문헌 신청
Chyb, S. / 2003 / Drosophila Gr5a encodes a taste receptor tuned to trehalose / Proc. Natl. Acad. Sci. USA 100:14526~14530
Dahanukar, A. / 2001 / A Gr receptor is required for response to the sugar trehalose in taste neurons of Drosophila / Nat. Neurosci 4:1182~1186
Dahanukar, A. / 2007 / Two Gr genes underlie sugar reception in Drosophila / Neuron 56:503~516
Dolan, L. C. / 2010 / Naturally occurring food toxins / Toxins 2:2289~2332
Dunipace, L. / 2001 / Spatially restricted expression of candidate taste receptors in the Drosophila gustatory system / Curr. Biol 11:822~835
Dahanukar, A. / 2001 / A Gr receptor is required for response to the sugar trehalose in taste neurons of Drosophila / Nat. Neurosci 4:1182~1186
Dahanukar, A. / 2007 / Two Gr genes underlie sugar reception in Drosophila / Neuron 56:503~516
Dolan, L. C. / 2010 / Naturally occurring food toxins / Toxins 2:2289~2332
Dunipace, L. / 2001 / Spatially restricted expression of candidate taste receptors in the Drosophila gustatory system / Curr. Biol 11:822~835
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