Details

Autor(en) / Beteiligte

• Martí Ruiz, María Carmen
• Hubbard, Katharine E
• Gardner, Michael J
• Jung, Hyun Ju
• Aubry, Sylvain
• Hotta, Carlos T
• Mohd-Noh, Nur Izzati
• Robertson, Fiona C
• Hearn, Timothy J
• Tsai, Yu-Chang
• Dodd, Antony N
• Hannah, Matthew
• Carré, Isabelle A
• Davies, Julia M
• Braam, Janet
• Webb, Alex A R

Titel

Circadian oscillations of cytosolic free calcium regulate the Arabidopsis circadian clock

Ist Teil von

• Nature plants, 2018-09, Vol.4 (9), p.690-698

Ort / Verlag

England

Erscheinungsjahr

2018

Quelle

MEDLINE

Beschreibungen/Notizen

• In the last decade, the view of circadian oscillators has expanded from transcriptional feedback to incorporate post-transcriptional, post-translational, metabolic processes and ionic signalling. In plants and animals, there are circadian oscillations in the concentration of cytosolic free Ca ([Ca ] ), though their purpose has not been fully characterized. We investigated whether circadian oscillations of [Ca ] regulate the circadian oscillator of Arabidopsis thaliana. We report that in Arabidopsis, [Ca ] circadian oscillations can regulate circadian clock function through the Ca -dependent action of CALMODULIN-LIKE24 (CML24). Genetic analyses demonstrate a linkage between CML24 and the circadian oscillator, through pathways involving the circadian oscillator gene TIMING OF CAB2 EXPRESSION1 (TOC1).