People

Dr Silvere Vialet-Chabrand

Senior Research Officer
School of Biological Sciences
Dr Silvere Vialet-Chabrand
  • Email

  • Telephone

    +44 (0) 1206 873769

  • Location

    3SW.6.23, Colchester Campus

Profile

Biography

2017-2019 Post-doctoral researcher at the University of Essex, UK Project: Wider and faster: high-throughout phenotypic exploration of novel genetic variation for breeding high biomass and yield in wheat Research interest: · Leaf energy balance and thermography under a dynamic environment. · Impact of stomatal conductance limitation on growth and yield. 2014-2017 Post-doctoral researcher at the University of Essex and University of Cambridge, UK Project: Stomatal-based systems analysis of water use efficiency. Research interest: · Cellular and leaf level dynamic of the stomata. · Scaling stomatal behaviour from leaf to canopy. · Thermal and chlorophyll fluorescence imagery. 2009-2013 Ph.D., Université de Lorraine, INRA Nancy-Lorraine (France), UMR 1137, Forest Ecology and Ecophysiology. Thesis: Identification and modelling of processes controlling the diurnal variation ofthe intrinsic water use efficiency. Research interest: · Models describing the diurnal and nocturnal temporal response of gas exchange at leaf and plant levels. · Impact of these temporal responses on water use efficiency and isotopic discrimination of 13CO2. · Adjustment of parameters and validation of dynamic models. 2008-2009 M.Sc. in agronomy and environmental science (FAGE), Université de Lorraine, Nancy, France. Thesis: Adjustment by genetic algorithm of a leaf gas exchange model in pedunculate oak. At INRA Nancy-Lorraine (France), UMR 1137, Forest Ecology and Ecophysiology (8 months). Specialisations: ecology, ecophysiology, biostatistics, modelling, water and carbonbudgets of ecosystem, climate and bioclimate, dendrochronology and pedology. Research topics: water use efficiency, gas exchange modelling and parameter fitting. 2005-2007 B.Sc. in biology of organisms and ecosystems, Université de Lorraine, Nancy, France.

Research and professional activities

Research interests

Plant ecophysiology

Modelling of leaf gas exchange

Scaling up from stomata to canopy level

Bayesian inference

Stomatal behaviour: rapidity and amplitude of response

Plant growth and water use efficiency

Effect of climate change on plant ecophysiology

Interaction between plants and their microclimate

Chlorophyll fluorescence imaging

Thermal imaging

Leaf boundary layer conductance

Image processing

Software programming

Current research

Wider and faster: high-throughout phenotypic exploration of novel genetic variation for breeding high biomass and yield in wheat

- Develop novel high throughput screening techniques of stomatal conductance.

- Identify progeny with less limited photosynthetic capacity and enhanced efficiency, which increase wheat biomass production and yield.

Stomatal-based systems analysis of water use efficiency:

- Scaling up the OnGuard model (http://www.psrg.org.uk/guard-cell.html) simulating the stomatal behaviour to the canopy level.

- Improving a dual imaging technic using thermal and chlorophyll fluorescence to assess Water Use Efficiency.

Publications

Journal articles (7)

Lawson, T. and Vialet-Chabrand, S., (2019). Speedy stomata, photosynthesis and plant water use efficiency. New Phytologist. 221 (1), 93-98

Matthews, JSA., Vialet-Chabrand, SRM. and Lawson, T., (2017). Diurnal Variation in Gas Exchange: The Balance between Carbon Fixation and Water Loss. Plant Physiology. 174 (2), 614-623

Vialet-Chabrand, SRM., Matthews, JSA., McAusland, L., Blatt, MR., Griffiths, H. and Lawson, T., (2017). Temporal Dynamics of Stomatal Behavior: Modeling and Implications for Photosynthesis and Water Use. Plant Physiology. 174 (2), 603-613

Vialet-Chabrand, S., Matthews, JSA., Simkin, AJ., Raines, CA. and Lawson, T., (2017). Importance of Fluctuations in Light on Plant Photosynthetic Acclimation. Plant Physiology. 173 (4), 2163-2179

Vialet-Chabrand, S., Matthews, JSA., Brendel, O., Blatt, MR., Wang, Y., Hills, A., Griffiths, H., Rogers, S. and Lawson, T., (2016). Modelling water use efficiency in a dynamic environment: An example using Arabidopsis thaliana. Plant Science. 251, 65-74

McAusland, L., Vialet-Chabrand, S., Davey, P., Baker, NR., Brendel, O. and Lawson, T., (2016). Effects of kinetics of light-induced stomatal responses on photosynthesis and water-use efficiency. New Phytologist. 211 (4), 1209-1220

Bechtold, U., Penfold, CA., Jenkins, DJ., Legaie, R., Moore, JD., Lawson, T., Matthews, JSA., Vialet-Chabrand, SRM., Baxter, L., Subramaniam, S., Hickman, R., Florance, H., Sambles, C., Salmon, DL., Feil, R., Bowden, L., Hill, C., Baker, NR., Lunn, JE., Finkenst├Ądt, B., Mead, A., Buchanan-Wollaston, V., Beynon, J., Rand, DA., Wild, DL., Denby, KJ., Ott, S., Smirnoff, N. and Mullineaux, PM., (2016). Time-series transcriptomics reveals that AGAMOUS-LIKE22 affects primary metabolism and developmental processes in drought-stressed arabidopsis. Plant Cell. 28 (2), 345-366

Book chapters (1)

Lawson, T. and Vialet-Chabrand, S., (2018). Chlorophyll fluorescence imaging. In: Photosynthesis. Editors: Covshoff, S., . Springer. 121- 140. 978-1-4939-7785-7

Contact

srmvia@essex.ac.uk
+44 (0) 1206 873769

Location:

3SW.6.23, Colchester Campus