On the origin of the thermoluminescence band at around + 50°C in isolated subchloroplast particles

Zsuzsanna Rózsa, Magdolna Droppa, Gábor Horváth

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The glow band appearing at around +50°C was studied in various subchloroplast preparations. The band was intensified by addition of detergent to the chloroplast suspension and it was present in all preparations obtained by detergent treatment as well as inartificially prepared protein-pigment-detergent micelles. The band could only be generated by continuous light, and not with flash excitation, and it disappeared when the detergent concentration was decreased in the sample. Our results indicate that the band appearing in subchloroplast preparations at around + 50°C is an artifact generated by detergent-protein-pigment interaction and it has to be distinguished from the + 50°C band observable in leaves and isolated chloroplasts.

Original languageEnglish
Pages (from-to)350-353
Number of pages4
JournalBBA - Bioenergetics
Volume973
Issue number2
DOIs
Publication statusPublished - Feb 1989

Keywords

  • Chemiluminescence
  • Chloroplast preparation
  • Electron transport
  • Photosynthesis
  • Thermoluminescence

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Cell Biology

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