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T. Casey Barickman, Dean A. Kopsell, and Carl E. Sams

produce ABA in low levels in the absence of stress factors. Therefore, ABA is an important component in the mechanisms of resistance and adaptation to abiotic stress conditions ( Berli et al., 2010 ). The role of ABA in protecting the xanthophyll cycle (de

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Joshua K. Craver, Joshua R. Gerovac, Roberto G. Lopez, and Dean A. Kopsell

the current study, it was found that pigments involved in the xanthophyll cycle were affected by light intensity. The xanthophyll cycle is involved in excess light energy dissipation within the plant, with the specific pigments involved in this cycle

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Christian M. Baldwin, Haibo Liu, Lambert B. McCarty, Hong Luo, and Joe E. Toler

temperatures drop; however, chlorophyll continues its light-absorbing properties ( Verhoeven et al., 2005 ). Therefore, photoinhibition will occur unless the xanthophyll cycle and/or antioxidant leaf enzymes minimize excessive light accumulation ( Deming

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Mark W. Farnham and Dean A. Kopsell

integral subunit of light-harvesting complexes in photosynthesis. In plant mutants void of xanthophyll cycle carotenoids, lutein functions in nonphotochemical quenching as a photoprotectant against oxidative damage ( Niyogi et al., 1997 ). The only previous

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Meng-Shiun Tsai, Tan-Cha Lee, and Pai-Tsang Chang

PPF that exists in fruit peel with a lower stomatal density results in a high surface temperature of the peel than that seen with the leaves under sunlight ( Glenn et al., 2002 ). Cheng and Ma (2004) indicated that the xanthophyll cycle functions as

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David A. Felicetti and Larry E. Schrader

need for further upregulation or 2) there is a limited capacity of the xanthophyll pigments to upregulate. The stepwise decline of the chlorophylls suggests a need for further upregulation of the xanthophyll cycle, but the data show a limited capacity

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Massachusetts: HPLC analysis of Xanthophylls Cycle Lien-Yang Chou 1 *, Ndi Geh 1 , Sean Cederlund 1 , Peter Jeranyama 2 , Carolyn DeMoranville 2 , and Harvey J.M. Hou 1 ; 1 Department of Chemistry and Biochemistry, University of Massachusetts Dartmouth, 285

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Julián Miralles-Crespo, Juan Antonio Martínez-López, José Antonio Franco-Leemhuis, and Sebastián Bañón-Arias

freezing injury in oleander, because it is rapid (especially F v /F m ), sensitive, non-destructive, and relatively inexpensive. Literature Cited Adams, W.W. III Hoehn, A. Demmig-Adams, B. 1995 Chilling temperatures and the xanthophyll cycle. A comparison

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Tessa Pocock

the lumen (ΔpH) during PSN also senses changes in light, regulates electron transport, and modulates nonphotochemical quenching (NPQ) in PSII ( Foyer et al., 2012 ; Kono and Terashima, 2014 ). The photoprotective xanthophyll cycle is a significant

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Carolina A. Torres, Omar Hernandez, Maria A. Moya-León, Ivan Razmilic, and David R. Rudell

Postharvest Biol. Technol. 1 119 125 Ma, F. Cheng, L. 2003 The sun-exposed peel of apple fruit has higher xanthophyll cycle-dependent thermal dissipation and antioxidants of the ascorbate-glutathione pathway than the shaded peel Plant Sci. 165 819 827 Ma, F