Premium
Light and temperature cues: multitasking receptors and transcriptional integrators
Author(s) -
Casal Jorge J.,
Qüesta Julia I.
Publication year - 2018
Publication title -
new phytologist
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.742
H-Index - 244
eISSN - 1469-8137
pISSN - 0028-646X
DOI - 10.1111/nph.14890
Subject(s) - neuroscience , perception , convergence (economics) , human multitasking , cryptochrome , biology , biological clock , computer science , psychology , communication , circadian clock , circadian rhythm , economics , economic growth
ContentsSummary 1029 I. Introduction 1029 II. Convergence at the receptor 1030 III. Convergence at transcriptional hubs 1031 IV. Convergence involving clock components 1033 V. Conclusions 1033Acknowledgements 1033References 1033Summary The combined information provided by light and temperature cues helps to optimise plant body architecture and physiology. Plants possess elaborate systems to sense and respond to these stimuli. Simultaneous perception of light and temperature by dual receptors such as phytochrome B and phototropin leads to immediate signalling convergence. Conversely, cue asynchronies initiate separate pathways and the information of the earliest cue is stored, awaiting the arrival of the later cue to control transcription. Storage mechanisms can involve changes in the activity of selected clock components or epigenetic modifications, depending on the time delay between cues (hours, days or several months). We propose a conceptual framework in which the mechanisms of integration relate to the timing of cue sensing.