
TY  - JOUR
A1  - Ahrling, K 
A1  - Grace, E 
A1  - Wydrzynski, T 
T1  - Minimal Mn requirement for functional water splitting in photosystem II
JF  - Science Access
JO  - 
Y1  - 2001
VL  - 3
IS  - 1
SP  - 
EP  - 
KW  - 
UR  - https://doi.org/10.1071/SA0403272 
N2  - The possibility for heterogeneous metal replacement (Klimov, V.V. et al, 1982, FEBS Letts, 148, 307-312) in the Mn containing catalytic site of photosystem II (PSII) has been explored. Spinach plants were grown hydroponically in a minimal Mn environment supplemented with additional transition metals in the growth medium. Conditions were found in which the plants grow successfully and exhibit control levels of O2 evolution activity (400 m mol O2 /mg Chl/hr). The Mn ion content of the material grown in the minimal Mn environment, corresponds to 2.0 ± 0.4 Mn ions per reactions centre (200 Chl) compared to 4.1 ± 0.4 for the control PSII samples. EPR characterisation of this material is underway and will be reported. 
ER  -

