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Sonali Roy

Posted by | March 13, 2021


Sonali Roy

Job Title:

Postdoctoral Fellow


Phone Number:



Sonali Roy obtained her PhD. at the John Innes Centre in Norwich, UK investigating the role of the phytohormone auxin in symbiotic nitrogen fixation. She continues her research interests in signalling molecules during her post-doctoral appointment in Dr. Udvardi’s lab at the Samuel Roberts Noble Foundation where she examines the role of small signalling peptides in symbiotic interactions. In addition to investigative research, Sonali particularly enjoys mentoring and providing hands-on training to plant and molecular bioscience students.

Research Areas:

  • Root nodule symbiosis
  • Plant Peptides
  • Plant hormones
  • Medicago truncatula

Current N-related Projects:

  • Peptide hormones involved in macro-nutrient deficiency and symbiosis


Roy, Sonali, et al. “MtLAX2, a functional homologue of the Arabidopsis auxin influx transporter AUX1, is required for nodule organogenesis.” Plant Physiology 174.1 (2017): 326-338.
Liu, Cheng-Wu, et al. “Cytokinin responses counterpoint auxin signaling during rhizobial infection.” Plant signaling & behavior 10.6 (2015): e1019982.

Chen, Da-Song, et al. “Identification of a core set of rhizobial infection genes using data from single cell-types.” Frontiers in plant science 6 (2015).
Breakspear, Andrew, et al. “The root hair “infectome” of Medicago truncatula uncovers changes in cell cycle genes and reveals a requirement for auxin signaling in rhizobial infection.” The Plant Cell 26.12 (2014): 4680-4701.