Projects per year
Abstract
Plants sense light and temperature changes to regulate flowering time. Here, we show that expression of the Arabidopsis florigen gene, FLOWERING LOCUS T (FT), peaks in the morning during spring, a different pattern than we observe in the laboratory. Providing our laboratory growth conditions with a red/far-red light ratio similar to open-field conditions and daily temperature oscillation is sufficient to mimic the FT expression and flowering time in natural long days. Under the adjusted growth conditions, key light signalling components, such as phytochrome A and EARLY FLOWERING 3, play important roles in morning FT expression. These conditions stabilize CONSTANS protein, a major FT activator, in the morning, which is probably a critical mechanism for photoperiodic flowering in nature. Refining the parameters of our standard growth conditions to more precisely mimic plant responses in nature can provide a powerful method for improving our understanding of seasonal response.
Original language | English |
---|---|
Pages (from-to) | 824-835 |
Number of pages | 12 |
Journal | Nature Plants |
Volume | 4 |
Issue number | 10 |
Early online date | 24 Sep 2018 |
DOIs | |
Publication status | Published - 1 Oct 2018 |
Keywords
- flowering
- light responses
- plant signalling
- photoperiodism
- environmental regulation
- phenology
- eco-physiology
- Circadian
Fingerprint Dive into the research topics of 'Molecular basis of flowering under natural long-day conditions in <i>Arabidopsis</i>'. Together they form a unique fingerprint.
Projects
- 1 Finished
Activities
- 1 Research and Teaching at External Organisation
-
University of Washington
Andrew Millar (Visitor)
Jul 2015 → Dec 2015Activity: Visiting an external institution types › Research and Teaching at External Organisation
Profiles
-
Andrew Millar
- School of Biological Sciences - Chair of Systems Biology
- SynthSys
Person: Academic: Research Active