| Autor: |
Hellingwerf, K. J., Crielaard, W., Hoff, W. D., Matthijs, H. C. P., Mur, L. R., Rotterdam, B. J. |
| Zdroj: |
Antonie van Leeuwenhoek; December 1994, Vol. 65 Issue: 4 p331-347, 17p |
| Abstrakt: |
The field of photobiology is concerned with the interactions between light and living matter. For Bacteria this interaction serves three recognisable physiological functions: provision of energy, protection against excess radiation and signalling (for motility and gene expression). The chemical structure of the primary light-absorbing components in biology (the chromophores of photoactive proteins) is surprisingly simple: tetrapyrroles, polyenes and derivatised aromats are the most abundant ones. The same is true for the photochemistry that is catalysed by these chromophores: this is limited to light-induced exciton- or electron-transfer and photoisomerization. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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