This paper presents the database of manuscripts and bibliography of codicological literature, which has been developed by the Department for the Cataloguing and Study of Manuscript at the CAS Masaryk Institute and Archive. The database facilitates the cataloguing of new manuscripts and the inclusion of data from printed catalogues and records of retrospective and recent bibliography as well as updating existing descriptions. It comprises three interconnected sections: the database of manuscripts, the database of codicological literature and most recently the database of institutions and fonds, including current information on institutions owning and administering historical fonds and manuscript collections.
The decay of tyrosine cation radical was found to be biphasic at 253 K. The fast phase corresponds to the YZ* component while the slow phase corresponds to the tyrosine D radical (YD*) component. At 253 K, the t1/2 value was ∼28.6 s for the fast phase and ∼190.7 s for the slow phase. The fast phase is attributed to the recombination of charges between YZ* and QA-. The activation energy for the reaction of YZ with QA- between 253 and 293 K was 48 kJ mol-1 in Cl--depleted photosystem 2 (PS2) membranes. Both the decay rate and the amplitude of the PAR-induced signal of YZ* were affected by addition of chloride anion. Change in the decay rate and the amplitude of the PAR-induced signal of YZ* was observed when other anions like Br-, I-, F, HCO3-, NO3-, PO43- were substituted in the Cl--depleted PS2. and A. Jajoo, S. Bharti, A. Kawamori.