ISSN:
1432-2048
Keywords:
Avena (chalcone synthase)
;
Chalcone synthase
;
Circadian rhythm
;
Light-dark transition
;
Rhythm (circadian)
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Chalcone-synthase (CHS) activity was followed during the development of primary leaves of oat (Avena sativa L.) seedlings grown under different illumination conditions. Continuous darkness and continuous light resulted in similar time courses of enzyme activity. The maximum of CHS activity in etiolated leaves was delayed by 1 d and reached about half the level of that of light-grown leaves. In seedlings grown under defined light-dark cycles a diurnal rhythm of CHS activity and its protein level was observed which followed the rhythm of CHS-mRNA translational activity (Knogge et al. 1986). This rhythm persisted in continuous light after a short-term pre-exposure to the light-dark cycle but not in continuous darkness.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00197740
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