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Signal Integration in Plants: UV-B, Shade and Biotic Stress

English title Signal Integration in Plants: UV-B, Shade and Biotic Stress
Applicant Ulm Roman
Number 154438
Funding scheme Sinergia
Research institution Département de Biologie Végétale Faculté des Sciences Université de Genève
Institution of higher education University of Geneva - GE
Main discipline Genetics
Start/End 01.10.2014 - 30.09.2018
Approved amount 1'569'867.00
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All Disciplines (2)

Discipline
Genetics
Molecular Biology

Keywords (8)

UV-B; Jasmonate; Photoreceptor; Arabidopsis; Herbivore-plant interaction; Signal transduction and integration; Shade; Wounding

Lay Summary (German)

Lead
Signalintegration ist von grösster Wichtigkeit für Pflanzen, aber die molekularen Mechanismen sind meist schlecht oder überhaupt nicht verstanden. Mit einem Fokus auf die Dreiecksbeziehung zwischen sichtbarem Licht - UV-B Strahlung - Verwundung soll dieses Projekt zu einem besseren Verständnis der Signalintegration auf der Basis eines wichtigen und beispielhaften Modellsystems führen.
Lay summary
Pflanzen sind aufgrund ihres sesshaften Lebensstils dynamischen und komplexen Umweltbedingungen ausgesetzt. Licht und biotischer Stress (Bakterien, Pilze, Insekten, etc.) haben einen starken Einfluss auf die pflanzliche Entwicklung und ihr Wachstum (inkl. Ernte). Diese Umwelteinflüsse geschehen nicht in Isolation und es ist schon bekannt, dass Licht und UV-B wichtige Regulatoren der pflanzlichen Abwehr gegen Frassfeinde und anderen biotischen Stress sind. Jedoch sind diese Interaktionen, vor allem auch auf molekuarer Ebene, noch nicht gut verstanden. Dieses Sinergiaprojekt soll einen Beitrag zu einem besseren Verständnis der Integration von sichtbarem Licht – UV-B Strahlung – Verwundung (Frassfeinde) leisten, und darüber hinaus als exemplarisches Modellsystem für Signalintegration und pflanzliche Entscheidungsfindung bei komplexen Umwelteinflüssen dienen.
Direct link to Lay Summary Last update: 29.07.2014

Responsible applicant and co-applicants

Employees

Publications

Publication
UVR8-mediated inhibition of shade avoidance involves HFR1 stabilization in Arabidopsis
Tavridou Eleni, Schmid-Siegert Emanuel, Fankhauser Christian, Ulm Roman (2020), UVR8-mediated inhibition of shade avoidance involves HFR1 stabilization in Arabidopsis, in PLOS Genetics, 16(5), e1008797-e1008797.
PHYTOCHROME INTERACTING FACTOR 7 is important for early responses to elevated temperature in Arabidopsis seedlings
Fiorucci Anne-Sophie, Galvão Vinicius Costa, Ince Yetkin Çaka, Boccaccini Alessandra, Goyal Anupama, Allenbach Petrolati Laure, Trevisan Martine, Fankhauser Christian (2020), PHYTOCHROME INTERACTING FACTOR 7 is important for early responses to elevated temperature in Arabidopsis seedlings, in New Phytologist, 226(1), 50-58.
Insect-damaged Arabidopsis moves like wounded Mimosa pudica
Kurenda Andrzej, Nguyen Chi Tam, Chételat Aurore, Stolz Stéphanie, Farmer Edward E. (2019), Insect-damaged Arabidopsis moves like wounded Mimosa pudica, in Proceedings of the National Academy of Sciences, 116(51), 26066-26071.
PIF transcription factors link a neighbor threat cue to accelerated reproduction in Arabidopsis
Galvāo Vinicius Costa, Fiorucci Anne-Sophie, Trevisan Martine, Franco-Zorilla José Manuel, Goyal Anupama, Schmid-Siegert Emanuel, Solano Roberto, Fankhauser Christian (2019), PIF transcription factors link a neighbor threat cue to accelerated reproduction in Arabidopsis, in Nature Communications, 10(1), 4005-4005.
Degradation of the transcription factors PIF4 and PIF5 under UV‐B promotes UVR8‐mediated inhibition of hypocotyl growth in Arabidopsis
Tavridou Eleni, Pireyre Marie, Ulm Roman (2019), Degradation of the transcription factors PIF4 and PIF5 under UV‐B promotes UVR8‐mediated inhibition of hypocotyl growth in Arabidopsis, in The Plant Journal, 101(3), 507-517.
Rapid extraction of living primary veins from the leaves of Arabidopsis thaliana
Kurenda Andrzej, Farmer Edward E. (2018), Rapid extraction of living primary veins from the leaves of Arabidopsis thaliana, Nature Protocol Exchange , London, UK.
Identification of cell populations necessary for leaf-to-leaf electrical signaling in a wounded plant
Nguyen Chi Tam, Kurenda Andrzej, Stolz Stéphanie, Chételat Aurore, Farmer Edward E. (2018), Identification of cell populations necessary for leaf-to-leaf electrical signaling in a wounded plant, in Proceedings of the National Academy of Sciences, 115(40), 10178-10183.
Arabidopsis RUP2 represses UVR8-mediated flowering in noninductive photoperiods
Arongaus Adriana B., Chen Song, Pireyre Marie, Glöckner Nina, Galvão Vinicius C., Albert Andreas, Winkler J. Barbro, Fankhauser Christian, Harter Klaus, Ulm Roman (2018), Arabidopsis RUP2 represses UVR8-mediated flowering in noninductive photoperiods, in Genes & Development, 32(19-20), 1332-1343.
Photoreceptor-mediated regulation of the COP1/SPA E3 ubiquitin ligase
Podolec Roman, Ulm Roman (2018), Photoreceptor-mediated regulation of the COP1/SPA E3 ubiquitin ligase, in Current Opinion in Plant Biology, 45, 18-25.
Coping with ‘Dark Sides of the Sun’ through Photoreceptor Signaling
Demarsy Emilie, Goldschmidt-Clermont Michel, Ulm Roman (2018), Coping with ‘Dark Sides of the Sun’ through Photoreceptor Signaling, in Trends in Plant Science, 23(3), 260-271.
Plant Strategies for Enhancing Access to Sunlight
Fiorucci Anne-Sophie, Fankhauser Christian (2017), Plant Strategies for Enhancing Access to Sunlight, in Current Biology, 27(17), R931-R940.
Local auxin production underlies a spatially restricted neighbor-detection response in Arabidopsis
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.
How plants cope with UV-B: from perception to response
Yin Ruohe, Ulm Roman (2017), How plants cope with UV-B: from perception to response, in Current Opinion in Plant Biology, 37, 42-48.
Neighbor Detection Induces Organ-Specific Transcriptomes, Revealing Patterns Underlying Hypocotyl-Specific Growth
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.
UV-B Perceived by the UVR8 Photoreceptor Inhibits Plant Thermomorphogenesis
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.
Light-Mediated Hormonal Regulation of Plant Growth and Development.
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.
UV-B Perception and Acclimation in Chlamydomonas reinhardtii.
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.
Plant phototropic growth.
Fankhauser Christian, Christie John M (2015), Plant phototropic growth., in Current biology : CB, 25(9), 384-9.
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Collaboration

Group / person Country
Types of collaboration
Keara Franklin / University of Bristol Great Britain and Northern Ireland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
Andreas Albert / Helmholtz Zentrum München Germany (Europe)
- Publication
- Research Infrastructure
Ioannis Xenarios / SIB & University of Lausanne Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
Geert De Jaeger / VIB Ghent Belgium (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication

Associated projects

Number Title Start Funding scheme
141181 Photoreceptor-mediated control of directional shoot-growth in Arabidopsis 01.05.2012 Project funding
179558 Phototropism in green seedlings: studying its regulation in open versus shaded environments 01.05.2018 Project funding
175566 Wound activation of jasmonate signalling: extending the squeeze cell hypothesis 01.03.2018 Project funding
155960 The role of GLR genes in long distance jasmonate signalling 01.01.2015 Project funding
173361 Sunfleck perception and responses 01.10.2017 Argentina (AJRP)
160326 Phototropism in green seedlings: studying its regulation in open versus shaded environments 01.05.2015 Project funding
138235 Cellular specificity in wound signalling and hormone synthesis in Arabidopsis 01.01.2012 Project funding
153475 Perception and signalling of UV-B radiation in plants 01.12.2014 Project funding
152221 Circadian regulation of phototropism in Arabidopsis and potato 01.05.2014 SCOPES
145652 The Napoleome 01.06.2013 Agora
146200 Targeted and non-targeted metabolomic study of the wound response in Arabidopsis: investigation of the role of 13-lipoxygenases in long distance signalling 01.04.2013 Project funding

Abstract

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.
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