ISSN:
1573-5028
Schlagwort(e):
circadian rhythm
;
CO2 fixation
;
gene expression
;
green alga
Quelle:
Springer Online Journal Archives 1860-2000
Thema:
Biologie
Notizen:
Abstract We have investigated whether the expression of carbonic anhydrase genes (Cah1 and Cah2) is regulated by a circadian clock in Chlamydomonas. When cells were grown in ordinary air under 12 h light/12 h dark (LD) cycles, the levels of the Cah2 mRNA hardly altered during the cycles, while the Cah1 mRNA showed a strong diurnal rhythm. The rhythm of about 24 h continued at least 3 days even under continuous light. Temperature compensation of the rhythm was demonstrated, using cultures maintained at 16, 22, and 28°C. These results indicate that the abundance of the Cah1 transcript is controlled by a circadian clock.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1007/BF00020215
