Circular polarized chlorophyll luminescence reflects the macroorganization of grana in pea chloroplasts

EE Gussakovsky, Y Shahak, H. van Amerongen, V. Barzda

Research output: Contribution to JournalArticleAcademicpeer-review

Abstract

Circular polarization of luminescence (CPL; Steinberg IZ (1978) Annu Rev Biophys Bioeng 7: 113-137) was applied to study pea chloroplasts in different structural states. The structural changes of chloroplasts were induced by variation of osmotic pressure, concentration of magnesium-ions or photoinhibition. Both large CPL and psi-type circular dichroism (psi, polymerization and salt induced) signals appeared in the presence of granal macrostructure and were sensitive to structural changes of the grana. The relation was studied between the amount of CPL expressed as an emission anisotropy factor g
Original languageEnglish
Pages (from-to)83-92
JournalPhotosynthesis Research
Volume65
DOIs
Publication statusPublished - 2000

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