UV-B; Jasmonate; Photoreceptor; Arabidopsis; Herbivore-plant interaction; Signal transduction and integration; Shade; Wounding
Fiorucci Anne-Sophie, Fankhauser Christian (2017), Plant Strategies for Enhancing Access to Sunlight, in Current Biology
, 27(17), R931-R940.
Michaud Olivier, Fiorucci Anne-Sophie, Xenarios Ioannis, Fankhauser Christian (2017), Local auxin production underlies a spatially restricted neighbor-detection response in Arabidopsis, in Proceedings of the National Academy of Sciences
, 114(28), 7444-7449.
Yin Ruohe, Ulm Roman (2017), How plants cope with UV-B: from perception to response, in Current Opinion in Plant Biology
, 37, 42-48.
Kohnen Markus V., Schmid-Siegert Emanuel, Trevisan Martine, Petrolati Laure Allenbach, Sénéchal Fabien, Müller-Moulé Patricia, Maloof Julin, Xenarios Ioannis, Fankhauser Christian (2017), Neighbor Detection Induces Organ-Specific Transcriptomes, Revealing Patterns Underlying Hypocotyl-Specific Growth, in The Plant Cell
, 28(12), 2889-2904.
Hayes Scott, Sharma Ashutosh, Fraser Donald P., Trevisan Martine, Cragg-Barber C. Kester, Tavridou Eleni, Fankhauser Christian, Jenkins Gareth I., Franklin Keara A. (2017), UV-B Perceived by the UVR8 Photoreceptor Inhibits Plant Thermomorphogenesis, in Current Biology
, 27(1), 120-127.
de Wit Mieke, Galvão Vinicius Costa, Fankhauser Christian (2016), Light-Mediated Hormonal Regulation of Plant Growth and Development., in Annual review of plant biology
, 67, 513-37.
Tilbrook Kimberley, Dubois Marine, Crocco Carlos D, Yin Ruohe, Chappuis Richard, Allorent Guillaume, Schmid-Siegert Emanuel, Goldschmidt-Clermont Michel, Ulm Roman (2016), UV-B Perception and Acclimation in Chlamydomonas reinhardtii., in The Plant cell
, 28(4), 966-83.
Fankhauser Christian, Christie John M (2015), Plant phototropic growth., in Current biology : CB
, 25(9), 384-9.
Signal integration is of the utmost importance to sessile photoautotrophic plants. The light environment and biotic stress have a large influence on plant productivity and light has recently emerged as a key modulator of plant defences against biotic stress. However, the interactions between light signalling and plant defence mechanisms remain poorly understood. We propose to tackle this knowledge gap by using the plant model system Arabidopsis thaliana and focusing on the interplay in the "triangle" visible light - UV-B - wounding, taking advantage of the broad expertise and complementarities available in the three collaborating research groups. Physiological data indicates that shade signals (red/far-red ratio) result in the negative regulation of defence responses, whereas UV-B seems to convey the opposite information (abundant light) resulting in an enhanced defence response. Growth responses are also differentially regulated by shade, UV-B and biotic stress and in some situations plants need to prioritize between growth and defence. In a collaborative effort we will investigate how this is molecularly and mechanistically wired and how accurate "decision-making" is achieved.