Heat-Induced 'Photo'Morphogenesis in Dark Grown Plants and Circadian Rhythmicity — is there a Connection?

Autor: Jens Beator, Klaus Kloppstech, Beate Otto
Rok vydání: 1992
Předmět:
Zdroj: Regulation of Chloroplast Biogenesis ISBN: 9781461364856
DOI: 10.1007/978-1-4615-3366-5_13
Popis: It can be deduced from the multiplicity of observations in this direction that circadian rhythms will have great impact on plant development although this is not self-evident. It may be asked why it should not be sufficient to synchronize plant development with the oscillating environmental factors and with the demands of plants for an interaction with the living surrounding via diurnal regulation. The observation of fluctuations at the level of mRNAs for three light-regulated genes (Kloppstech, 1985) added at the first glance just one more parameter to measure: a molecular handle whose oscillations were somewhat more complicated and more expensive to analyze but also closer to the basal level of gene expression. Therefore, a lot of data have been collected along the traditional line of circadian measurements although for instance phase-shifting had been used for carrying out the original experiments. Essential contributions in this new field were the observation that run-off transcripts for lightinducible genes are under circadian control, indicating that it is primarily but not exclusively transcription control which is exerted by the clock (Giuliano et al., 1988).
Databáze: OpenAIRE