Photoinhibition and chlorophyll photobleaching in immobilized thylakoid membranes

R. Carpentier, Roger Leblanc, M. Mimeault

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Thylakoid membranes can be immobilized to enhance their stability in photoelectrochemical cells exposed to strong continuous illumination. This paper studies the effect of such immobilization in a glutaraldehyde-albumin crosslinked matrix on the rates of photoinhibition of electron transfer and chlorophyll photobleaching. The immobilization matrix constituted an efficient oxygen diffusion barrier that prevents chlorophyll photobleaching to a great extent. The photoprotection was less efficient against photoinhibition as seen by monitoring oxygen evolution after given periods of preillumination in the cell of a photoacoustic spectrophotometer. The results also indicated that light dispersion by the immobilization matrix was not a critical factor for photoprotection.

Original languageEnglish
Pages (from-to)489-493
Number of pages5
JournalEnzyme and Microbial Technology
Volume9
Issue number8
StatePublished - Aug 1 1987
Externally publishedYes

Fingerprint

Photobleaching
Thylakoids
Chlorophyll
Immobilization
Oxygen
Photoelectrochemical cells
Membranes
Diffusion barriers
Photoacoustic effect
Spectrophotometers
Glutaral
Albumins
Lighting
Electrons
Monitoring
Light

ASJC Scopus subject areas

  • Biochemistry
  • Biotechnology
  • Applied Microbiology and Biotechnology

Cite this

Photoinhibition and chlorophyll photobleaching in immobilized thylakoid membranes. / Carpentier, R.; Leblanc, Roger; Mimeault, M.

In: Enzyme and Microbial Technology, Vol. 9, No. 8, 01.08.1987, p. 489-493.

Research output: Contribution to journalArticle

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