• Dr. Pablo Leivar Rico

Dr. Pablo Leivar
Bioengineering Department
IQS School of Engineering
Universitat Ramon Llull
Via Augusta 390, E-08017 Barcelona, Spain
Tel. +34 93 267 20 00
Fax +34 93 205 62 66


B.S. in Biochemistry (Universitat de Barcelona, 1998)
PhD in Biochemistry (Universitat de Barcelona, 2003)
Postdoctoral Fellow in molecular biology, genetics and transcriptomics (University of California-Berkeley, 2004-2009)
Career Track Fellow in molecular genetics and transcriptional regulation (Centre for Research in Agricultural Genomics, 2010-2014)
Academic Positions:
Assistant Professor (IQS, 2014 -)


Laboratory 3: Biochemistry (Degree in Biotechnology)
Laboratory 4: Molecular biology (Degree in Biotechnology)
Recombinant DNA technology (Degree in Biotechnology)



  • Molecular mechanisms underlying plant adaptation to changing light environments
  • Light perception and signaling through the phytochrome (phy) photoreceptors and phy-interacting transcription factors (PIFs)
  • PIF-regulated transcriptional networks in changing light environments
  • Manipulation of light signaling pathways to optimize plant growth and crop traits and/or yield



LEIVAR, P., and Monte, E. (2014). PIFs: Systems Integrators in Plant Development. THE PLANT CELL 26, 56-78.
Soy, J., LEIVAR, P., and Monte, E. (2014). PIF1 promotes phytochrome-regulated growth under photoperiodic conditions in Arabidopsis together with PIF3, PIF4, and PIF5. JOURNAL OF EXPERIMENTAL BOTANY 65, 2925-2936.
Soy, J., LEIVAR, P., Gonzalez-Schain, N., Sentandreu, M., Prat, S., Quail, P.H., and Monte, E. (2012). Phytochrome-imposed oscillations in PIF3 protein abundance regulate hypocotyl growth under diurnal light/dark conditions in Arabidopsis. THE PLANT JOURNAL 71, 390-401.
LEIVAR, P., Tepperman, J.M., Cohn, M.M., Monte, E., Al-Sady, B., Erickson, E., and Quail, P.H. (2012). Dynamic antagonism between phytochromes and PIF family basic helix-loop-helix factors induces selective reciprocal responses to light and shade in a rapidly responsive transcriptional network in Arabidopsis. THE PLANT CELL 24, 1398-1419.
LEIVAR, P., Monte, E., Cohn, M.M., and Quail, P.H. (2012). Phytochrome signaling in green Arabidopsis seedlings: impact assessment of a mutually negative phyB-PIF feedback loop. MOLECULAR PLANT 5, 734-749.

Leivar P., Antolín-Llovera M., Ferrero S., Closa M., Arró M., Ferrer A., Boronat A., Campos N. (2011). Multilevel control of Arabidopsis 3-hydroxy-3-methylglutaryl coenzyme A reductase by protein phosphatase 2A. THE PLANT CELL 23, 1494-1511. 
Sentandreu, M., Martin, G., Gonzalez-Schain, N., LEIVAR, P., Soy, J., Tepperman, J.M., Quail, P.H., and Monte, E. (2011). Functional profiling identifies genes involved in organ-specific branches of the PIF3 regulatory network in Arabidopsis. THE PLANT CELL 23, 3974-3991.
LEIVAR, P., and Quail, P.H. (2011). PIFs: pivotal components in a cellular signaling hub. TRENDS IN PLANT SCIENCE 16, 19-28.
LEIVAR, P., Tepperman, J.M., Monte, E., Calderon, R.H., Liu, T.L., and Quail, P.H. (2009). Definition of early transcriptional circuitry involved in light-induced reversal of PIF-imposed repression of photomorphogenesis in young Arabidopsis seedlings. THE PLANT CELL 21, 3535-3553.
LEIVAR, P., Monte, E., Oka, Y., Liu, T., Carle, C., Castillon, A., Huq, E., and Quail, P.H. (2008). Multiple phytochrome-interacting bHLH transcription factors repress premature seedling photomorphogenesis in darkness. CURRENT BIOLOGY 18, 1815-1823.
LEIVAR, P., Monte, E., Al-Sady, B., Carle, C., Storer, A., Alonso, J.M., Ecker, J.R., and Quail, P.H. (2008). The Arabidopsis phytochrome-interacting factor PIF7, together with PIF3 and PIF4, regulates responses to prolonged red light by modulating phyB levels. THE PLANT CELL 20, 337-352.



Chemical Biology and Biotechnology Group