Rebecca Parales

Rebecca Parales

Position Title

Department of Microbiology and Molecular Genetics, College of Biological Sciences

226 Briggs Hall

Research Interests

Bacterial degradation of aromatic hydrocarbons and man-made environmental pollutants. Bacterial chemotaxis to pollutants and man-made chemicals.

Grad Group Affiliations

  • Biochemistry, Molecular, Cellular and Developmental Biology
  • Microbiology

Specialties / Focus

  • Biochemistry
  • Gene Regulation
  • Molecular Genetics
  • Molecular Microbiology


  • MIC 105 Microbial Diversity, Winter
  • MIC 105L Microbial Diversity Laboratory, Winter
  • MIC 200B Advanced Bacteriology, Winter
  • MIC 104L General Bact Lab, Fall


  • 225 Briggs Hall

Professional Societies

  • American Society for Microbiology


  • 1981 BS Chemistry University of Connecticut
  • 1993 PhD Microbiology Cornell University


J.G. Hughes, X. Zhang, J.V. Parales, J.L. Ditty and R.E. Parales. 2017. Pseudomonas putida F1

uses energy taxis to sense hydroxycinnamic acids. Microbiology (in press).

Z. Huang, B. Ni, C.-Y. Jiang, Y.-F. Wu, Y.-Z. He, R.E. Parales, and S.-J. Liu. 2016. Direct sensing and signal transduction during bacterial chemotaxis towards aromatic compounds in Comamonas testosteroni Mol. Microbiol. 101:224-237.

R.A. Luu, J. Kootstra, C. Brunton, V. Nersteryuk, J.V. Parales, J.L. Ditty and R.E. Parales. 2015. Integration of chemotaxis, transport, and catabolism in Pseudomonas putida and identification of the aromatic acid chemoreceptor PcaY. Mol. Microbiol. 96:134-147.

R.E. Parales, R.A. Luu, J.G. Hughes, and J.L. Ditty. 2015. Chemotaxis to xenobiotic chemicals and naturally-occurring analogs. Curr. Opin. Biotechnol. 33:318-326.

K.M. Mahan, J.T. Penrod, R. Truong, W.A. Tan, N. Al Kass, J.V. Parales, K.-S. Ju, and R.E. Parales. 2015. Selection for growth of 2-nitrotoluene degrading Acidovorax sp. strain JS42 on 3-nitrotoluene identifies nitroarene dioxygenases with altered specificities. Appl. Environ. Microbiol. 81:309-319.

R.E. Parales, V. Nesteryuk, J.G. Hughes, R.A Luu, and J.L. Ditty. 2014. The cytosine chemoreceptor McpC in Pseudomonas putida F1 also detects nicotinic acid. Microbiology 160:2660-2669.

R.A. Luu, B.J. Schneider, C.C. Ho, V. Nesteryuk, S.E. Ngwesse, X. Liu, J.V. Parales, J.L. Ditty and R.E. Parales. 2013. Taxis to phenylacetic acid by Pseudomonas putida F1 is mediated by the energy taxis receptor Aer2. Appl. Environ. Microbiol. 79:2416-2423.

C.A. Rabinovitch-Deere and R.E. Parales. 2012. Acidovorax sp. strain JS42 uses three types of taxis to respond to 2-nitrotoluene. Appl. Environ. Microbiol. 78:2308-2315.

K.-S. Ju and R.E. Parales. 2011. Evolution of a new bacterial pathway for 4-nitrotoluene degradation. Mol. Microbiol. 82:355-364.

K.-S. Ju and R.E. Parales. 2010. Nitroaromatic compounds, from synthesis to biodegradation. Microbiol. Mol. Biol. Rev. 74: 250-272.