Hình ảnh phân cực đơn phức của anten quang hợp hình tròn

Photosynthesis Research - Tập 111 - Trang 41-45 - 2011
Sumera Tubasum1, Daniel Thomsson1, Richard Cogdell2, Ivan Scheblykin1, Tõnu Pullerits1
1Department of Chemical Physics, Lund University,Lund,Sweden
2Glasgow Biomedical Research Centre, University of Glasgow, Glasgow, UK

Tóm tắt

Phương pháp phổ phân cực huỳnh quang phức đơn được áp dụng để nghiên cứu anten thu ánh sáng ngoại vi (LH2) từ vi khuẩn lam tím quang hợp Rhodopseudomonas (Rps.) acidophila. Các biểu đồ phân cực kích thích-phát xạ hai chiều được đo được sử dụng để xây dựng biểu diễn hình học cho B800 hấp thụ và B850 phát xạ dưới dạng hình elip. Hình dạng và hướng của các hình elip được thảo luận trong bối cảnh các phức hợp LH2 nghiêng, nơi phát xạ xảy ra từ các exciton B850 có năng lượng không trật tự.

Từ khóa

#phổ phân cực huỳnh quang #vi khuẩn lam tím quang hợp #anten thu ánh sáng #phức hợp LH2 #exciton

Tài liệu tham khảo

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