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Department of Horticulture and Crop Science


HCS Seminar Series Spring 2015

Apr 1, 2015, 11:30am - 12:25pm

Wendy Peer

Assistant Professor
Department of Environmental Science and Technology
University of Maryland
College Park, MD 20745-5825

Phone 301-405-5491


  A tale of two enzymes: regulation of auxin transport & auxin responses

Abstract:  Environmental signals and developmental programming affect hormone biosynthesis. Then the hormone needs to be transported to its site of action to initiate a response. After the response, the signal must be attenuated so that the plant can respond to the next set of signals. The signal can be attenuated by  removing the signal from the system by 1) efflux, 2) catabolism, or 3) conjugation and compartmentation. The roles of enzymes in catabolism of the plant hormone auxin and proteolytic turnover of the reversible auxin transporter ABCB4 to regulate signaling and maintain hormone homeostasis will be presented.

Bio and Contact:  Dr. Peer’s research focuses on reactive oxygen species and regulation of signaling pathways and metalloenzymes and proteases and their roles in cell division, trafficking and cryptic functions. Dr. Peer received a Ph.D. in Biology from the University of California-Santa Cruz in 1996; a  B.S. in Chemistry (Honors), from California State University-Bakersfield in1989, and a  B.S. in Biology (Honors) from California State University in 1989.  She can be contacted at: Department of Environmental Science and Technology, University of Maryland, 5138 Plant Science Building, College Park, MD 20742, email; phone 301-405-5491.

Host:  Dr. Joshua Blakeslee,

11:30 AM - 12:25 PM
Kottman 244 (Columbus)
video-linked to
121 Fisher Auditorium (Wooster)