Central complex substructures are required for the maintenance of locomotor activity in Drosophila melanogaster

1999 ◽  
Vol 185 (3) ◽  
pp. 277-288 ◽  
Author(s):  
J.-R. Martin ◽  
T. Raabe ◽  
M. Heisenberg
Keyword(s):  
Drosophila Melanogaster ◽  
Locomotor Activity ◽  
Central Complex

Neuropeptide F immunoreactive clock neurons modify evening locomotor activity and free-running period in Drosophila melanogaster

2012 ◽  
Vol 520 (5) ◽  
pp. 970-987 ◽  
Author(s):  
Christiane Hermann ◽  
Taishi Yoshii ◽  
Verena Dusik ◽  
Charlotte Helfrich-Förster
Keyword(s):  
Drosophila Melanogaster ◽  
Locomotor Activity ◽  
Free Running ◽  
Neuropeptide F ◽  
Free Running Period

scholarly journals Protocerebral bridge neurons that regulate sleep in Drosophila melanogaster

2020 ◽  
Author(s):  
Jun Tomita ◽  
Gosuke Ban ◽  
Yoshiaki S. Kato ◽  
Kazuhiko Kume
Keyword(s):  
Drosophila Melanogaster ◽  
Brain Regions ◽  
Central Complex ◽  
Neuronal Circuit ◽  
Sleep Regulation ◽  
Synaptic Contacts ◽  
Protocerebral Bridge ◽  
Dopamine Signaling

AbstractThe central complex is one of the major brain regions that control sleep in Drosophila, but the circuitry details of sleep regulation have yet to be elucidated. Here, we show a novel sleep-regulating neuronal circuit in the protocerebral bridge (PB) of the central complex. Activation of the PB interneurons labeled by the R59E08-Gal4 and the PB columnar neurons in the R52B10-Gal4 promoted sleep and wakefulness, respectively. A targeted GFP reconstitution across synaptic partners (t-GRASP) analysis demonstrated synaptic contacts between these two groups of sleep-regulating PB neurons. Furthermore, we found that activation of a pair of dopaminergic (DA) neurons projecting to the PB (T1 DA neurons) decreased sleep. The wake-promoting T1 DA neurons and the sleep-promoting PB interneurons formed close associations. Dopamine 2-like receptor (Dop2R) knockdown in the sleep-promoting PB interneurons increased sleep. These results indicated that the neuronal circuit in the PB regulated by dopamine signaling mediates sleep-wakefulness.

Evidences for Circadian Rhythmicity in the per° Mutant of Drosophila melanogaster

1987 ◽  
Vol 42 (11-12) ◽  
pp. 1335-1338 ◽  
Author(s):  
Charlotte Helfrich ◽  
Wolfgang Engelmann
Keyword(s):  
Drosophila Melanogaster ◽  
Locomotor Activity ◽  
Mutual Coupling ◽  
Phase Relationship ◽  
Limited Range ◽  
Central Clock ◽  
The Individual ◽  
Relationship Of ◽  
Per Gene ◽  
Oscillator Theory

per° Mutants of Drosophila melanogaster which are exposed to light-dark cycles (LD) with different Zeitgeber period (T) have a limited range of entrainment. Entrained flies show a characteristic phase relationship of activity to the LD which depends on the period of the driving cycle as expected by oscillator theory. Both facts are taken as evidence that per° possesses endogenous oscillators and that the per gene product is not concerned with central clock structures but rather might be responsible for the mutual coupling between the individual oscillators in a multioscillatory system controlling locomotor activity.

MUSHROOM BODY INFLUENCE ON LOCOMOTOR ACTIVITY AND CIRCADIAN RHYTHMS IN DROSOPHILA MELANOGASTER

2002 ◽  
Vol 16 (2) ◽  
pp. 73-109 ◽  
Author(s):  
CHARLOTTE HELFRICH-FÖRSTER ◽  
JÖRG WULF ◽  
J. STEVEN DE BELLE
Keyword(s):  
Drosophila Melanogaster ◽  
Locomotor Activity ◽  
Circadian Rhythms ◽  
Mushroom Body

Locomotor Activity in Drosophila Melanogaster Selected for Different Wing Lengths

1997 ◽  
Vol 48 (1) ◽  
pp. 27-37 ◽  
Author(s):  
Willem Scharloo ◽  
Gerdien De Jong ◽  
Estelle J.K. Noach
Keyword(s):  
Drosophila Melanogaster ◽  
Locomotor Activity

Changes in dopamine levels and locomotor activity in response to selection on virgin lifespan in Drosophila melanogaster

2006 ◽  
Vol 127 (7) ◽  
pp. 610-617 ◽  
Author(s):  
C.J. Vermeulen ◽  
T.I.F.H. Cremers ◽  
B.H.C. Westerink ◽  
L. Van De Zande ◽  
R. Bijlsma
Keyword(s):  
Drosophila Melanogaster ◽  
Locomotor Activity ◽  
Response To Selection

No-Bridge of Drosophila Melanogaster: Portrait of a Structural Brain Mutant of the Central Complex

1992 ◽  
Vol 8 (3) ◽  
pp. 125-155 ◽  
Author(s):  
Roland Strauss ◽  
Ulrike Hanesch ◽  
Martin Kinkelin ◽  
Reinhard Wolf ◽  
Martin Heisenberg
Keyword(s):  
Drosophila Melanogaster ◽  
Central Complex ◽  
Structural Brain

Locomotor activity rhythm in Drosophila melanogaster after 600 generations in an aperiodic environment

2002 ◽  
Vol 89 (11) ◽  
pp. 512-514 ◽  
Author(s):  
V. Sheeba ◽  
M. Chandrashekaran ◽  
Amitabh Joshi ◽  
Vijay Sharma
Keyword(s):  
Drosophila Melanogaster ◽  
Locomotor Activity ◽  
Activity Rhythm ◽  
Locomotor Activity Rhythm
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