Our laboratory studies the molecular bases of cell size regulation in plant cells. A better understanding of the impact of root cell development and nutrient absorption, as well as root anchoring in the soil when nutrients are one of the most important limiting factors for improving seed and fruit productivity. All our research aims to answer the following questions: How are RALFs-FER downstream components of the signaling cascades linked to extracellular signals such as nutrients/water and temperature? Functions of RALF (Rapid Alkalinization Factor) peptides that control the signaling pathway involving FERONIA (FER) kinase-like receptors during root hair growth. How are the intracellular Ca2+ reservoirs coordinated to contribute to the cytoplasmic Ca2+ gradient in these growing polar cells? Functions of ACA and ECA Ca2+-ATPases in the polar growth of root hairs and pollen tubes. How are temperature conditions and nutrient deficiency decoded as extracellular stimuli in a defined transcriptional network in these individual plant cells? Identify the transcriptional network controlled by transcription factors activated at low temperature in root hair cells using RNA-seq and ChIP-seq approaches.