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


  • 225 Briggs Hall

Professional Societies

  • American Society for Microbiology


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


R.A. Luu, R.A. Schomer, C.N. Brunton, R. Truong, A.P. Ta, W.A. Tan, J.V. Parales, Y.-J. Wang, Y.-W. Huo, S.-J. Liu, J.L. Ditty, V. Stewart and R.E. Parales. 2019. Hybrid 2-component sensor for identification of bacterial chemoreceptor function. Appl. Environ. Microbiol. 85:e01626-19.

X. Zhang, J.G. Hughes, G.A. Subuyuj, J.L. Ditty and R.E. Parales. 2019. Chemotaxis to alcohols by Pseudomonas putida F1. Appl. Environ. Microbiol. 85:e01625-19.

R.E. Parales and J.L. Ditty. 2018. Chemotaxis to atypical attractants by soil bacteria. Methods Mol. Biol. 1729:255-280.

G. Sharma, R.E. Parales, and M.H. Singer. 2018. In silico characterization of a novel putative aerotaxis chemosensory system in the myxobacterium, Corallococcus coralloides. BMC Genomics 19:757.

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 163:1490-1501.

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.