Dr. Dominique Arnaud Researcher

Position: Postdoctoral Researcher

My areas of expertise focus on plant physiology, plant-microbe interactions, ROS metabolism, molecular and cellular biology, genetics, biotechnology, phylogenomics and transcriptomics. During my past research, I was involved in the functional characterisation of the Arabidopsis lectin receptor kinase LecRK-V.5 involved in plant response to bacterial pathogens. Then, I studied the function of type-B response regulators in cytokinin-mediated regulation of stomatal immunity. I also characterised the hydrogen peroxide signatures induced during the immune response in Arabidopsis by using the roGFP2-Orp1 sensor.

At CPSBB, one of my research projects consists in the study of the impact of abiotic stresses such as drought and heat on ROS-mediated plant immunity. I am also participating in the study of the genetic architecture of natural accessions of tomato and pepper through GWAs analyses to improve breeding efficiency via cisgenesis and gene editing technologies for a better plant resistance to pathogens.

SELECTED PUBLICATIONS:

Arnaud D., Deeks M.J., and Smirnoff N. (2023) RBOHF activates stomatal immunity by modulating both reactive oxygen species and apoplastic pH dynamics in Arabidopsis. The Plant Journal. 116:404-415. doi: 10.1111/tpj.16380. (IF 7.091)

Arnaud D., Deeks M.J. and Smirnoff N. (2023) Organelle-targeted biosensors reveal distinct oxidative events during pattern-triggered immune responses. Plant Physiology, 191:2551-2569. doi: 10.1093/plphys/kiac603. (IF 9.115)

Fenech M., Amorim-Silva V., Esteban Del Valle A., Arnaud D., Ruiz-Lopez N., Castillo AG., Smirnoff N. and Botella MA. (2021) The role of GDP-l-galactose phosphorylase in the control of ascorbate biosynthesis. Plant Physiology. 185:1574-1594 (IF 8.340)

Smirnoff N. and Arnaud D. (2019) Hydrogen peroxide metabolism and functions in plants. New Phytologist. 221:1197-1214 (IF 7.433) Review.

Arnaud D., Lee S., Takebayashi Y., Choi D., Choi J., Sakakibara H. and Hwang I. (2017) Cytokinin-mediated regulation of reactive oxygen species homeostasis modulates stomatal immunity in Arabidopsis. Plant Cell. 29:543-559 (IF 8.688)

Arnaud D. and Hwang I. (2015) A sophisticated network of signaling pathways regulates stomatal defenses to bacterial pathogens. Molecular Plant, 8: 566-581 (IF 6.337) Review

*Desclos-Theveniau M., *Arnaud D., Huang T-Y., Lin G. J-C.., Chen W-Y., Lin Y-C. and Zimmerli L. (2012) The Arabidopsis Lectin Receptor Kinase LecRK-V.5 represses stomatal immunity induced by Pseudomonas syringae pv tomato DC3000. PLoS Pathogens. 8(2): e1002513. doi:10.1371/journal.ppat.1002513 (*contributed equally) (IF 8.136)