The role of serotonin in regulation of the circadian rhythms of locomotor activity in the cricket (Acheta domesticus L.) I. Circadian variations in serotonin concentration in the brain and hemolymph

Muszyńska-Pytel, M.; Cymborowski, B.

doi:10.1016/0306-4492(78)90005-9

Cited by 23 publications

(8 citation statements)

References 6 publications

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“…During the first days of diapause, the physiological state of dormancy was progressively induced. At this early period, we observed a lower cerebral dopaminergic activity and, in contrast, higher 5-HT levels, 5-HT has been implicated in diurnal rhythms [22], mediated via an inhibitory role on brain neurosecretory cells, which control post-embryonic development. The largest quantities of 5-HT occurred at the beginning of diapause; they could thus reduce or inhibit brain neurosecretory activity and, in consequence, could arrest metamorphosis.…”

Section: Discussionmentioning

confidence: 85%

“…In most cases, investigations into the role of biogenic amines have been concerned with rhythmic phenomena dealing with locomotor activity and nycthemeral rhythms [22-241. Histochemical studies revealed a relationship between the variations of cerebral indoleamine levels and the nycthemeral rhythms in Acheta domesticus [22]. Serotonin may inhibit or modulate the release of neurosecretory products.…”

Section: Introductionmentioning

confidence: 97%

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Variations of biogenic amine levels in the brain of Pieris brassicae pupae during nondiapausing and diapausing development

Puiroux

Moreau

Gourdoux

1990

Arch Insect Biochem Physiol

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The post-embryonic development of Pieris brassicae can either be continuous (under a long photoperiod) or interrupted at the pupal stage (induced by a short photoperiod); this phenomenon is termed facultative diapause. Several studies have indicated that certain brain mechanisms could be directly involved in the perception of variations in the photoperiod and could mediate some physiological effects particular to dormancy. Biogenic amines have been particularly implicated in the response to photoperiod variations and also in the regulation of development, especially in diapause induction and termination.High performance liquid chromatography with dual electrochemical detection has therefore been used to measure several biogenic amines in pupal nervous tissues at various stages of nondiapausing and diapausing development.During direct development, the levels of dopamine (DA) and N-acetyldopamine (NADA: a DA metabolite) in brain were relatively high in 3-day-old pupae and at the end of pupal life (on the 8th day). Dihydroxyphenylacetic acid (another metabolite of DA) showed no variation. Serotonin was mainly observed in 2-3-day-old pupae but 5-hydroxyindoleacetic acid was never detected. In young diapausing insects, similar variations of DA levels were observed even though a slight decrease of DA metabolites was noted. Serotonin appeared somewhat later (4-5 days) and attained higher levels. In late diapausing pupae, a marked increase in DA levels was observed, especially when pupae were kept at low temperature (4°C). During diapause, serotonin levels were reduced or even absent.

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Section: Discussionmentioning

confidence: 85%

Section: Introductionmentioning

confidence: 97%

Variations of biogenic amine levels in the brain of Pieris brassicae pupae during nondiapausing and diapausing development

Puiroux

Moreau

Gourdoux

1990

Arch Insect Biochem Physiol

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“…Circadian variation of serotonin in the brain has been reported in several insects (Muszynska-Pytel and Cymborowski, 1978;Bult et al, 1991;Tomioka et al, 1993;Linn et al, 1994;Kloppenburg et al, 1999). In the cricket and the cockroach, serotonin is known to be involved in the regulation of the optic lobe circadian clock (Page, 1987;Saifullah and Tomioka, 2003;Tomioka, 1999).…”

Section: Circadian Variation Of Serotonin and Of Bombykol Sensitivitymentioning

confidence: 99%

Serotonin modifies the sensitivity of the male silkmoth to pheromone

Gatellier

Nagao

Kanzaki

2004

Journal of Experimental Biology

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Serotonin is known to modulate the response of neuronal populations in the primary olfactory center of the moth olfactory system, the antennal lobe. Here, we analyzed the effects of serotonin on the behavior related to the restricted pheromone olfactory pathway of the male silkmoth, Bombyx mori. In order to understand the effects of serotonin at the behavioral level, we applied serotonin (10 -5 ·mol·l -1 , 10 -4 ·mol·l -1 and 10 -3 ·mol·l -1 ) to the brain and found that 10 -4 ·mol·l -1 serotonin increases the sensitivity to female pheromone whereas 10 -3 ·mol·l -1 serotonin had the opposite effect. Levels of serotonin in the brain were determined using HPLC with electrochemical detection. Inhibitory effects were observed after applying the serotonin antagonists mianserin (10 -4 ·mol·l -1 ) and ketanserin (10 -3 ·mol·l -1 ). Additionally, we quantified the circadian variation of serotonin in the brain using HPLC with electrochemical detection. Further, this variation correlated well with a circadian variation of the male sensitivity to pheromone. These results show that the serotonin-related enhancement of neuronal responses at the antennal lobe level is expressed at the behavioral level as a modulation of pheromone sensitivity and that the circadian variation of serotonin levels in the brain correlates with changes in the moth's pheromone sensitivity.

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“…The limited number of serotonin immunoreactive neurons in the insect brain allows a detailed analysis of the morphology of these neurons throughout postembryonic development and indicates that they are developmentally conserved (Breidbach, 1990;Granger et al, 1989;Radwan et al, 1989;Seidel and Bicker, 1996;White, 1986, 1988;Wegerhoff and Breidbach, 1992). For serotonin containing wide-field neurons that centrifugally invade sensory neuropils, a role in modulation of the integration of sensory inputs has been shown for different insect species (Erber and Kloppenburg, 1995;Erber et al, 1991Erber et al, , 1993Muszynska-Pytel and Cymborowski, 1978;Salecker and Distler, 1990), whereas serotonin or other amines in small field neurons may serve as a conventional transmitter in local neuronal circuits (for review see Homberg, 1994). In contrast to serotonin, GABA immunoreactivity is found in numerous neurons within the insect brain.…”

Section: Introductionmentioning

confidence: 96%

GABA and serotonin immunoreactivity during postembryonic brain development in the beetleTenebrio molitor

Wegerhoff

1999

Microsc. Res. Tech.

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The role of serotonin in regulation of the circadian rhythms of locomotor activity in the cricket (Acheta domesticus L.) I. Circadian variations in serotonin concentration in the brain and hemolymph

Cited by 23 publications

References 6 publications

Variations of biogenic amine levels in the brain of Pieris brassicae pupae during nondiapausing and diapausing development

Variations of biogenic amine levels in the brain of Pieris brassicae pupae during nondiapausing and diapausing development

Serotonin modifies the sensitivity of the male silkmoth to pheromone

GABA and serotonin immunoreactivity during postembryonic brain development in the beetleTenebrio molitor

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