Carotenoid oxidation products are stress signals that mediate gene responses to singlet oxygen in plants

1 O 2 (singlet oxygen) is a reactive O 2 species produced from triplet excited chlorophylls in the chloroplasts, especially when plants are exposed to excess light energy. Similarly to other active O 2 species, 1 O 2 has a dual effect: It is toxic, causing oxidation of biomolecules, and it can act a... View More