[21p-P14-1~10] 3.5 Ultrashort-pulse and high-intensity lasers (formerly 3.6)

[21p-P14-7] Photosynthetic functions of photosystem II substituted to iodine

〇(B)Yujiro Hama¹, Mizuki Noai¹, Miki Bandou(Uotani)^2,3, Keisuke Kawakami⁴, Koji Yonekura⁴, Nobuo Kamiya⁵, Daisuke Kosumi⁶ (1.Facul. of Sci.Kumamoto Univ., 2.Div.of Tech., Kumamoto Univ., 3.Sch. of Grad.Std., Open Univ.of Jpn., 4.RIKEN,SPring-8, 5.,ReCAP,Osaka Metro. Univ, 6.IINa,Kumamoto Univ.)

Keywords:

Ultrafast spectroscopy,photosynthesis

Photosystem II is an essential protein complex driving a water splitting reaction by sunlight in oxygenic photosynthesis. Photosystem II is consisting of a number of proteins and cofactors, and it has been suggested that chloride ion plays important roles in water-splitting reaction. In this study, we performed on femtosecond pump-probe spectroscopic measurements on PSII substituted to iodine to clarify roles of iodine in photosynthetic function.