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1. Temperature-dependent decay-associated fluorescence spectra in phycobilisome-thylakoid membrane complexes from Spirulina platensis

Creator:
Li, Y., Sun, Z.-Y., Ai, X.-C., Zhao, J.-Q., and Zhang, X.-K.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
cyanobacterium and photosystems 1 and 2
Language:
Multiple languages
Description:
The kinetic component (39 ps) for the energy transfer from a phycobilisome (PBS) to the photosystems was temperature-dependent while the components related to the kinetic processes within PBS, photosystem 2 (PS2) or PS1 were temperature-independent. The 39 ps component possessed the amplitude maximum at 647 nm but the minimum at 715 nm (room temperature) or 685 nm (0 °C), suggesting a direct energy transfer from C-phycocyanin to PS1 at room temperature but to PS2 at 0 °C. The temperature-induced kinetic change originated from a position shift of PBS along the thylakoid membrane. and Y. Li ... [et al.].
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. The PsbH protein of photosystem 2

Creator:
Komenda, J., Štys, D., and Lupínková, L.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
chloroplast, cyanobacterium, D1 protein, phosphorylation, and photosynthesis
Language:
Multiple languages
Description:
The PsbH protein belongs to a group of small protein subunits of the photosystem 2 (PS2) complex and genes encoding PsbH homologues have been so far found in all studied oxygenic phototrophs. This single helix membrane protein is important for the proper function of the PS2 acceptor side and for stable assembly of PS2. Its hypothetical function as an analogue of the H subunit of the bacterial reaction centre as well as a putative role of its phosphorylation is evaluated. and J. Komenda, D. Štys, L. Lupínková.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public