Biology Department Seminar

"Directed Mutation of the Chloroplast ATP Synthase in Chlamydomonas reinhardtii"

Presented by Eric Johnson, Department of Biology, Johns Hopkins University, Baltimore, MD

Friday, September 12, 2008, 11:00 am — John Dunn Seminar Room, Bldg. 463

The chloroplast ATP synthase links light energy capture to carbon fixation through the coupling of proton translocation and ATP synthesis. Multiple regulatory mechanisms tightly control this vital step in photosynthesis. Site-directed mutagenesis of the chloroplast ATP synthase from the alga Chlamydomonas reinhardtii alters the regulation of light-dependent synthesis of ATP. The altered physiology of modified algae reveals how regulation of ATP synthesis can influence chloroplast metabolism. New strains and techniques developed during this work have found applications in several emerging technologies including bio-hydrogen production.

Hosted by: John Shanklin

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