Significance of the lipid phase in the dynamics and functions of the xanthophyll cycle as revealed by PsbS overexpression in tobacco and in-vitro de-epoxidation in monogalactosyldiacyglycerol micelles

• Published in: Plant and cell physiology Vol. 45; no. 1; pp. 92 - 102
• Main Authors: Hieber, A.D, Kawabata, O, Yamamoto, H.Y
• Format: Journal Article
• Language: English
• Published: 2004
• Subjects: Arabidopsis thaliana; biochemical pathways; epoxides; gene overexpression; light; light harvesting complex; lipids; lutein; monogalactosyldiacylglycerol; Nicotiana tabacum; non-photochemical quenching; oxidoreductases; photosynthetic reaction centers; photosystem II; plant proteins; tobacco; transgenes; transgenic plants; violaxanthin; violaxanthin de-epoxidase; zeaxanthin

The dynamics of the xanthophyll cycle relative to non-photochemical quenching (NPQ) were examined in tobacco plants overexpressing violaxanthin de-epoxidase (VDE), PsbS and PsbS+VDE for effects on NPQ and violaxanthin (V) de-epoxidation over a range of light intensities. Induction of de-epoxidation...