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학술발표회초록보기

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  • 09월 12일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제110회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Living plant cell fluorescence spectra imaging during state transitions

등록일
2012년 8월 30일 15시 52분 22초
접수번호
1377
발표코드
PHYS.P-514 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 17일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
물리화학
저자 및
공동저자
김은철, Shigeichi Kumazaki1, 안태규
성균관대학교 에너지과학과, Korea
1Kyoto Univerisity, Japan
Plants have to adapt their environment because they can't move to prefer condition. They regulate protein and gene expression level to against stress (Martin M. et al. Ann. Rev. Plant Physiol. 1986). But light stress is too flexible to be regulated by protein and gene expression system (Kuhlheim et al. Science 2002). Fortunately they have molecule, protein, organism scale protection mechanism which are enough fast to prevent photodamage. Of three photoprotection mechanism, protein level mechanism keep a balance between photosystem I(PSI) and photosystem II(PSII) by moving light harvesting complex protein(LHCP) (Krishna K Niyogi et al. Current Opinion in plant biology 2000). When PSI light is stronger than PSII, LHCP move to PSII. Reversely when PSII light is stronger than PSII, LHCP move to PSI. It's called state 1 and state 2 respectively. But this mechanism is not directly observed in vivo yet. In this study, fluorescence spectra image of living plant cell is observed during state transitions by using near-infrared laser-based fluorescence spectral microscopy.

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