Dr. Sheng Luan, Professor, Department of Plant and Microbial Biology, UC Berkeley, will present the seminar entitled "Photosystem II assembly in Arabidopsis" on Tues., Oct. 1, 2013 at 4:00 PM in N172 Beadle Center.
Photosynthetic light reactions entail the coordinated function of several large membrane complexes: photosystem I (PSI), photosystem II (PSII), cytochrome b6f complex, and CF0-CF1 complex. PSII catalyzes the initial step of photosynthesis—the light-dependent oxidation of water that yields molecular oxygen and reduced plastoquinone. The native form of PSII residing in the thylakoid membrane is believed to be organized into various forms of supercomplex (SCs) consisting of the PSII core and the peripheral light harvesting complex II (LHCII) that plays a primary role in harvesting light, transfer of excitation energy to the reaction center and regulation of light utilization in photosynthesis. Factors involved in the assembly of PSII supercomplexes will be discussed.