Diurnal fluctuation in dna content and DNA synthesis in the dorsal epidermis of Rana pipiens

William W. Morgan, Sherwin Mizell

Resultado de la investigación: Articlerevisión exhaustiva

12 Citas (Scopus)

Resumen

1. 1. DNA content and DNA synthesis (3H-thymidine uptake) were measured in dorsal skin epidermis of frogs-Rana pipiens sacrificed in groups of 12 over a period of 24 hr-exposed to a 12 : 12 light-dark lighting régime for 2 weeks before sacrifice. 2. 2. Diurnal fluctuations were observed in both DNA content and DNA synthesis of dorsal epidermis. 3. 3. The reproducibility of these rhythms suggests that they are true physiological phenomena with periodicities of nearly 24 hr. 4. 4. The results of light inversion experiments suggest the importance of the lighting régime in the regulation of these rhythms.

Idioma originalEnglish (US)
Páginas (desde-hasta)591-602
Número de páginas12
PublicaciónComparative Biochemistry and Physiology -- Part A: Physiology
Volumen38
N.º3
DOI
EstadoPublished - mar. 1 1971
Publicado de forma externa

ASJC Scopus subject areas

  • Physiology

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