Park, H; Kreunen, S; Cuttriss, Abby; DellaPenna, Dean; Pogson, Barry
Carotenoids are essential photoprotective and antioxidant pigments synthesized by all photosynthetic organisms. Most carotenoid biosynthetic enzymes were thought to have evolved independently in bacteria and plants. For example, in bacteria, a single enzyme (Crtl) catalyzes the four desaturations leading from the colorless compound phytoene to the red compound lycopene, whereas plants require two desaturases (phytoene and ζ-carotene desaturases) that are unrelated to the bacterial enzyme. We...[Show more]
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