Abstract
Pigment photobleaching was performed in thylakoid membranes of Hordeum vulgare (wild type, mutant Chlorina f2. Norfluranzon treated seedlings) and in pigment-protein complexes (CP-I and LHCP) isolated from H. vulgare and Chlamydomonas reinhardtii. Multiphasic kinetics were obtained in all of the above cases. Energy transfer towards pigments absorbing at longer wavelength is postulated as a general protection mechanism against photobleaching. This mechanism explains a substantial bleaching of carotenoids and a faster bleaching of chlorophyll aggregates, absorbing at long wavelength. These conclusions were valid for isolated complexes as well as for thylakoid membranes, although membranes were less sensitive to light.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 284-290 |
| Number of pages | 7 |
| Journal | Zeitschrift fur Naturforschung - Section C Journal of Biosciences |
| Volume | 41 |
| Issue number | 3 |
| DOIs | |
| State | Published - Mar 1 1986 |
| Externally published | Yes |
Keywords
- Chlorophyll
- Energy Transfer
- Photobleaching
- Pigment-Protein Complexes
- Thylakoid Membranes
ASJC Scopus subject areas
- Biochemistry, Genetics and Molecular Biology(all)
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Cite this
Carpentier, R., Leblanc, R. M., & Bellemare, G. (1986). Chlorophyll Photobleaching in Pigment-Protein Complexes. Zeitschrift fur Naturforschung - Section C Journal of Biosciences, 41(3), 284-290. https://doi.org/10.1515/znc-1986-0307