![]() ![]() (1995) Isolation and analysis, in Carotenoids vol. (1998) Altered xanthophylls compositions adversely affect chlorophyll accumulation and nonphotochemical quenching in Arabidopsis mutants. ![]() (1999) Unusual carotenoid composition and a new type of xanthophylls cycle in plants. (1998) The xanthophyll cycle of Mantoniella squamata converst violaxanthin into antheraxanthin but not zeaxanthin: consequences for the mechanism of enhanced non-photochemicla energy dissipation. and Britton, G., eds.), Chapman and Hall, New York, pp. (1993) The xanthophyll cycle, in Carotenoids in Photosynthesis (Young, A. (1996) The role of xanthophyll cycle carotenoids in the protection of photosynthesis. (1997) The roles of specific xanthophylls in photoprotection. (1993) Structure and Nomenclature, in Carotenoids in Photosynthesis (Young, A. (1993) Carotenoids in pigment-protein complexes, in Carotenoids in Photosynthesis (Young, A. In addition, several spectrophotometric methods for the quantification of chlorophylls a and b are described. Methods for the determination and quantification using high-performance liquid chromatograpy (HPLC) are described as well as methods for the separation and purification of pigments for use as standards using thin-layer chromatography (TLC). This chapter describes pigment extraction procedures from higher plants and green algae. These cycles involve the reversible de-epoxidation of violaxanthin into antheraxanthin and zeaxanthin, as well as the reversible de-epoxidation of lutein-5,6-epoxide into lutein. Methods for the determination of chlorophylls a and b, β-carotene, neoxanthin, and the pigments that are involved in photoprotective cycles such as the xanthophylls are discussed. Chorophylls and carotenoids are functionally important pigment molecules in photosynthetic organisms. ![]()
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