Abstract：
:Odors elicit a number of behavioral responses, including attraction and repulsion in Drosophila. In this study, the authors used a T-maze apparatus to show that wild-type Drosophila melanogaster exhibit a robust circadian rhythm in the olfactory attractive and repulsive responses. These responses were lower during the day and began to rise at early night, peaking at about the middle of the night and then declining thereafter. They were also independent of locomotor activity. The olfactory response rhythms were lost in period or timeless mutant flies (per0, tim0), indicating that clock genes control circadian rhythms of olfactory behavior. The rhythms in olfactory response persisted in the absence of the pigment-dispersing factor neuropeptide or the central pacemaker lateral neurons known to drive circadian patterns of locomotion and eclosion. These results indicate that the circadian rhythms in olfactory behavior in Drosophila are driven by pacemakers that do not control the rest-activity cycle and are likely in the antennae.
journal_name
J Biol Rhythmsjournal_title
Journal of biological rhythmsauthors
Zhou X,Yuan C,Guo Adoi
10.1177/0748730405274451subject
Has Abstractpub_date
2005-06-01 00:00:00pages
237-44issue
3eissn
0748-7304issn
1552-4531pii
20/3/237journal_volume
20pub_type
杂志文章abstract：:The synchronizing stimulus, its transduction site, and the afferent pathways responsible for feeding entrainment remain unknown. In fish, the role of the diet in the development of feeding anticipatory activity (FAA) is not well understood and fundamental questions on the mechanisms of feeding entrainment, such as the...
journal_title：Journal of biological rhythms
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journal_title：Journal of biological rhythms
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journal_title：Journal of biological rhythms
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