Analysis of photosynthetic pigments: an uptdate
2005
Bertrand, Matine | Garrido, J. L. | Schoefs, Benoît
12 pages, 3 figures
Afficher plus [+] Moins [-]The molecules that appear colored to our eyes are named pigments. Among them are photosynthetic pigments. They include at least 50 chlorophylls (Chls), their precursors and derivatives (green tetrapyrrole rings), 600 carotenoids (yellow to red isoprenoids), and 10 phycobilins (red and blue open tetrapyrroles). Usually, several kinds of pigments coexist in situ, and the most abundant ones determine the color. A monstrative example is that of endive. The top of leaves of dark-grown plants is yellow due to the presence of carotenoids; after some hours of illumination, they turn green; this change in color is due to the fact that Chl has accumulated faster than carotenoids
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