|COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring.|
Circadian regulation of chloroplasts
If you have a question about this talk, please contact Dr Ian Henderson.
Circadian timekeeping improves plant performance. Understanding the cellular basis for the circadian optimization of plant function is important, because this could unlock additional agricultural productivity. There are circadian rhythms of photosynthesis and correct circadian regulation increases plant productivity, but it is not known how the circadian oscillator regulates the photosynthetic apparatus or the chloroplast genome. I will show that in Arabidopsis, a subset of chloroplast-encoded photosynthesis genes is controlled by a nuclear-encoded signalling protein. Our findings reveal one pathway by which the nuclear-encoded circadian oscillator controls rhythms of chloroplast gene expression. I will show that light and circadian signals are integrated to adjust chloroplast transcription. I will conclude that (i) during evolution, prokaryotic transcriptional regulators in chloroplasts were recruited by the eukaryotic circadian system in higher plants, and (ii) circadian timing information is communicated between organelles with distinct genetic systems.
This talk is part of the Plant Sciences Departmental Seminars series.
This talk is included in these lists:
Note that ex-directory lists are not shown.
Other listsChurchill Undergraduate Physics Seminars Ancient India and Iran Trust Imaging and Mathematics
Other talksArt speak The Emergence of the Sovereign Consumer – from Adam Smith to the Socialist Calculation Debate The 5th Annual Sir John Walker Lecture, "The molecular calcium reporter: molecular identity and physiological role" Starting Companies can be bad for your Health but good for Animals EDC clinic Excitability