Circadian rhythm in the pineal organ of the yellow-bellied toad, Bombina variegata (L.), under laboratory conditions

• Authors: Piotr Sura
• Languages of publication: EN

Abstracts

EN

A circadian morphological rhythm of the pineal organ, as judged by changes in the nuclear volume of the photoreceptor cells, was found in sexually nature male Yellow-bellied toads (Bombina variegata) maintained continuously at 26 ?C and on a 17L/7D illumination cycle. The greatest nuclear volume occurred at the photophase (16.00 h), and the lowest at the end of the scotophase (4.00 h).

Keywords

EN

BOMBINA; CIRCADIAN RHYTHM; KARYOMETRY; PINEAL ORGAN

Discipline

• EXPERIMENTAL_BIOLOGY_&_MEDICINE: EXPERIMENTAL BIOLOGY & MEDICINE

• Publisher: Institute of Systematics and Evolution of Animals, Polish Academy of Sciences
• Journal: Folia Biologica
• Year: 1992
• Volume: 40
• Issue: 3-4
• Pages: 145-149

Contributors

author

Piotr Sura

• Document Type: article