VDE — Lactuca sativa
Summary
LsVDE (LSAT_V11C500285710) on chromosome 5 of garden lettuce encodes a violaxanthin de-epoxidase, a lipocalin-family protein with violaxanthin de-epoxidase and NAD(P)H dehydrogenase (quinone) activities. The gene is associated with the xanthophyll cycle, chlorophyll and fatty acid metabolism, and chlorophyll fluorescence. It localises to the chloroplast thylakoid lumen and photosystem II. LsVDE is linked to photosynthetic rate, quantum yield, photochemical quenching, and respiration rate. The gene has been connected to non-photochemical quenching, zeaxanthin conversion and accumulation, high light sensitivity and tolerance, photooxidative stress tolerance, photoinhibition resistance, drought tolerance, osmotic stress tolerance, basal thermotolerance, and growth. Additional associations include chloroplast positioning, stomatal response to blue light, photosystem II repair and function, reactive oxygen species homeostasis, and chloroplastic glutathione redox state.
Annotations
- Chromosome
- 5
- Related genes
- VDE, NPQ1, LTO1
- GO terms
- Chlorophyll Fluorescence, NAD(P)H Dehydrogenase (quinone) Activity, Protein Domain Specific Binding, xanthophyll metabolism, chlorophyll metabolism, Photosystem II Assembly, Chloroplast Thylakoid Lumen, Xanthophyll Cycle
- Publications
- 16913871, 20964339, 20100799, 19011000, 27446097, 27076397, 22771437, 25747136
- Traits
- drought tolerance, photoinhibition sensitivity, Extreme High Light Sensitivity, Leaf Bleaching Under Light Stress, Partially Restores NPQ Defects, Decreased Rosette Size, Altered Chlorophyll Fluorescence, Impaired Xanthophyll Cycle, Photoinhibition Sensitivity, Lacks Both Zeaxanthin and Tocopherols, Reduced Nonphotochemical Quenching, Absent Zeaxanthin Formation, Reduced Photosynthetic Efficiency, Stunted Growth in Fluctuating Light