ULTRAVIOLET-B RADIATION-INDUCED DAMAGE TO THE FUNCTION AND STRUCTURE OF PHOTOSYSTEM-II

Authors
VASS I SPETEA C HIDEG E BARBATO R PETROULEAS V
Citation
I. Vass et al., ULTRAVIOLET-B RADIATION-INDUCED DAMAGE TO THE FUNCTION AND STRUCTURE OF PHOTOSYSTEM-II, Acta phytopathologica et entomologica Hungarica, 30(1-2), 1995, pp. 47-49
Citations number
10
Categorie Soggetti
Agriculture,"Plant Sciences",Entomology
Journal title
Acta phytopathologica et entomologica Hungarica → ACNP
ISSN journal
02381249
Volume
30
Issue
1-2
Year of publication
1995
Pages
47 - 49
Database
ISI
SICI code
0238-1249(1995)30:1-2<47:URDTTF>2.0.ZU;2-H
Abstract
The effects of Ultraviolet-B radiation on the structure and function o f the PSII complex has been investigated in isolated PSII membrane par ticles. By combined application of thermoluminescence, chlorophyll flu orescence and EPR we show that the primary action site of UV-B is the water-oxidizing complex. Experiments on the UV-B induced degradation o f the D1 and D2 protein subunits of the PSII reaction centre show that contrary to earlier suggestions quinones are not needed to sensitize the protein damage.