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Full moonlight-induced circadian clock entrainment in Coffea arabica

Breitler Jean-Christophe, Djerrab Doaa, Leran Sophie, Toniutti Lucile, Guittin Charlie, Severac Dany, Pratlong M., Dereeper Alexis, Etienne Hervé, Bertrand Benoît. 2020. Full moonlight-induced circadian clock entrainment in Coffea arabica. BMC Plant Biology, 20:24, 11 p.

Journal article ; Article de recherche ; Article de revue à facteur d'impact Revue en libre accès total
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Abstract : Background: It is now well documented that moonlight affects the life cycle of invertebrates, birds, reptiles, and mammals. The lunisolar tide is also well-known to alter plant growth and development. However, although plants are known to be very photosensitive, few studies have been undertaken to explore the effect of moonlight on plant physiology. Results: Here for the first time we report a massive transcriptional modification in Coffea arabica genes under full moonlight conditions, particularly at full moon zenith and 3 h later. Among the 3387 deregulated genes found in our study, the main core clock genes were affected. Conclusions: Moonlight also negatively influenced many genes involved in photosynthesis, chlorophyll biosynthesis and chloroplast machinery at the end of the night, suggesting that the full moon has a negative effect on primary photosynthetic machinery at dawn. Moreover, full moonlight promotes the transcription of major rhythmic redox genes and many heat shock proteins, suggesting that moonlight is perceived as stress. We confirmed this huge impact of weak light (less than 6 lx) on the transcription of circadian clock genes in controlled conditions mimicking full moonlight.

Mots-clés Agrovoc : Coffea arabica, Lune, Séquence d'ADN, Photosynthèse

Mots-clés libres : Moonlight, Circadian clock, Coffea arabica, RNA-seq

Classification Agris : F60 - Plant physiology and biochemistry
F30 - Plant genetics and breeding

Champ stratégique Cirad : CTS 1 (2019-) - Biodiversité

Agence(s) de financement européenne(s) : European Commission

Programme de financement européen : H2020

Projet(s) de financement européen(s) : BREEDing Coffee for AgroForestry Systems

Auteurs et affiliations

  • Breitler Jean-Christophe, CIRAD-BIOS-UMR IPME (MEX) - auteur correspondant
  • Djerrab Doaa, CIRAD-BIOS-UMR IPME (FRA)
  • Leran Sophie, CIRAD-BIOS-UMR IPME (FRA)
  • Toniutti Lucile, Université de Montpellier (FRA)
  • Guittin Charlie, IRD (FRA)
  • Severac Dany, CNRS (FRA)
  • Pratlong M., CNRS (FRA)
  • Dereeper Alexis, CIRAD-BIOS-UMR AGAP (GLP)
  • Etienne Hervé, CIRAD-BIOS-UMR IPME (FRA)
  • Bertrand Benoît, CIRAD-BIOS-UMR IPME (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/594789/)

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