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Investigations of the diurnal activity of the endocrine dorsal bodies in Helix aspersa


, : Investigations of the diurnal activity of the endocrine dorsal bodies in Helix aspersa. International Journal of Invertebrate Reproduction and Development, 142-3: 229-243

The activity of the endocrine dorsal bodies (DB) of adults of the land snail Helix aspersa in the field shows striking fluctuations during a 24-h cycle.

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Accession: 001869941

DOI: 10.1080/01688170.1988.10510382

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Related references

Vincent C.; Griffond B.; Wijdenes J.; Gomot L., 1984: Studies on the control of the endocrine dorsal bodies by the central nervous system in helix aspersa. In vitro and in vivo comparative experiments demonstrate that endocrine dorsal-body cells are under the inhibitory control of the CNS. The neurons which innervate the dorsal bodies localized by using an ultrastructural study as well as intracellul...

Saleuddin A.S.M.; Griffond B.; Ashton M L., 1991: An ultrastructural study of the activation of the endocrine dorsal bodies in the snail helix aspersa by mating. The ultrastructural organization of the dorsal bodies of Helix aspersa was studied using serial sectins. The dorsal body cells, which were found in groups of two to six in the connective tissue surrounding the brain, contacted each other and forme...

Griffond B.; Vincent C.; Gomot L., 1984: Physiological regulation of an endocrine organ the dorsal bodies by the cerebral green cells of the mesocerebrum in the snail helix aspersa. Annales d'Endocrinologie 42(2): 22N

Barre P.; Bride M.; Griffond B., 1990: In vitro synthetic activity of the juvenile ovotestis of helix aspersa influence of the brain and the dorsal bodies. A bioassay was developed in Helix aspersa to study the effect of known endocrine centers on the two-month-old gonad, using organ culture. The incorporation of 14C leucine and 3H fucose in the juvenile gonad almost doubled over control levels, in t...

Griffond B.; Vincent C., 1985: The activity of the dorsal bodies in the snail helix aspersa as related to photoperiod and to the different phases of the adult life cycle. The dorsal bodies (DB) were investigated in mature H. aspersa in different physiological states and in adult animals maintained under short- or long-day light cycles. Morphological criteria as well as a quantitative EM study do not indicate striki...

Vincent C.; Griffond B.; Gomot L.; Bride J., 1984: An in vitro study on the influence of the dorsal bodies on ovogenesis in helix aspersa. Infantile gonads of H. aspersa were cultured in vitro for 13 days, alone, associated with dorsal bodies or with cerebral ganglia (surrounded by connective tissue containing the dorsal bodies). The results demonstrate the stimulatory effect of the...

Vincent, C.; Griffond, B.; Gomot, L.; Bride, J., 1984: In vitro study of the influence of dorsal bodies on oogenesis in Helix aspersa Müll. Infantile gonads of Helix aspersa were cultured in vitro for 13 days, alone, associated with dorsal bodies, or with cerebral ganglia (surrounded by connective tissue containing the dorsal bodies). The results demonstrate the stimulatory effect of...

Griffond, B.; Mounzih, K., 1989: In vitro inhibition of methionine incorporation in the dorsal bodies of Helix aspersa by synthetic FMRFamide. 1. In in vitro conditions, synthetic FMRF amide was shown to inhibit the uptake of labelled methionine by the dorsal bodies (DB)-contaiing connective tissue of Helix aspersa. 2. This effect occurred at physiological concentrations and in a dose-de...

Wijdenes, J.; Vincent, C.; Griffond, B.; Gomot, L., 1983: Ultrastructural evidence for the neuroendocrine innervation of the dorsal bodies and their probable physiological significance in Helix aspersa. Unknown

Gomot P.; Griffond B.; Colard C.; Gomot L., 1992: Effect of the cerebral ganglia and dorsal bodies on temperature induced dna synthesis in the gonads of hibernating helix aspersa. Brain extirpation of snails at the start of their natural hibernation increased the synthesis of DNA in spermatogonia when the animals were transferred from 5 to 25.degree. C for a 4-week period. This effect did not occur if animals were maintaine...