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.


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)