Diane M. Beckles

Diane Beckles

Position Title
Associate Professor and Associate Postharvest Biochemist


UC Davis, One Shields Ave, Davis CA 95616


  • Ph.D., University of Cambridge (UK); Plant Biochemistry, 1999
  • B.Sc., University of Sheffield (UK); Biotechnology, 1993

Research interests and expertise: 

Our primary focus is on identifying genes that influence starch and sucrose accumulation in crop plants. The level of these carbohydrates, their interconversion, and long-term storage, are central to crop yield, postharvest quality, and plant survival under abiotic stress. Therefore, genes that regulate these biomolecules may be good biotechnological targets for improving the sustainability of crop production. We also study postharvest chilling injury in tomato fruit, with a view to understanding the molecular basis of this disorder. This may help to develop practical solutions to reduce the severity of this disorder, and permit the use of a cold chain for the postharvest handling of tomato and other tropical and semitropical fruit that are sensitive to refrigeration.

Current projects: 

  • Molecular and epigenetic factors modulating postharvest chilling injury in tomato fruit.
  • Regulation of the sugar starvation response in plants.
  • Environmental and genetic control of starch molecular structure in crop plants

Links to Research

Current teaching: 

  • Plant Genetics; PLS 152, (fall quarter)
  • Genetics and Biotechnology Laboratory; BIT 161A (winter quarter)
  • Seminar in Postharvest Biology; PBI 293 (spring quarter)

Links to Teaching

External activities that contribute to scholarship:

Prizes, Awards, Honors:

  • Fellowship in Israel, 2017.
  • Chancellor's Fellow Diversity, Equity & Inclusion.

Google Scholar


Social media links: 


  • Carbohydrate metabolism.
  • Source-sink relations
  • Starch metabolism
  • Starch functionality
  • Abiotic stress
  • Postharvest chilling injury
  • Molecular physiology
  • Plant biochemistry