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Citation
Liu, L., Davis, R.L., Roman, G. (2007). Exploratory activity in Drosophila requires the kurtz nonvisual arrestin.  Genetics 175(3): 1197--1212.
FlyBase ID
FBrf0200160
Publication Type
Research paper
Abstract

When Drosophila adults are placed into an open field arena, they initially exhibit an elevated level of activity followed by a reduced stable level of spontaneous activity. We have found that the initial elevated component arises from the fly's interaction with the novel arena since: (1) the increased activity is independent of handling prior to placement within the arena, (2) the fly's elevated activity is proportional to the size of the arena, and (3) the decay in activity to spontaneous levels requires both visual and olfactory input. These data indicate that active exploration is the major component of elevated initial activity. There is a specific requirement for the kurtz nonvisual arrestin in the nervous system for both the exploration stimulated by the novel arena and the mechanically stimulated activity. kurtz is not required for spontaneous activity; kurtz mutants display normal levels of spontaneous activity and average the same velocities as wild-type controls. Inhibition of dopamine signaling has no effect on the elevated initial activity phase in either wild-type or krz(1) mutants. Therefore, the exploratory phase of open field activity requires kurtz in the nervous system, but is independent of dopamine's stimulation of activity.

PubMed ID
PubMed Central ID
PMC1840054 (PMC) (EuropePMC)
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Secondary IDs
  • FBrf0192620
Language of Publication
English
Additional Languages of Abstract
Parent Publication
Publication Type
Journal
Abbreviation
Genetics
Title
Genetics
Publication Year
1916-
ISBN/ISSN
0016-6731
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