VDE — Solanum lycopersicum
Summary
SOLYC04G050930.3, the tomato VDE gene on chromosome 4, encodes a violaxanthin de-epoxidase with a VDE domain and calycin/lipocalin conserved sequence, possessing violaxanthin de-epoxidase activity and NAD(P)H dehydrogenase (quinone) activity. The protein localises to the chloroplast thylakoid lumen and photosystem II. VDE is associated with the xanthophyll cycle, heat dissipation, carotenoid and pigment metabolism, phototransduction, and photosystem II assembly. It has been linked to fruit colour, lycopene, carotene, flavonoid and sucrose content, fruit weight, photosynthetic rate, quantum yield, leaf temperature, specific leaf area, and osmotic response sensitivity. The gene is also connected to non-photochemical quenching, zeaxanthin accumulation, photoinhibition and drought tolerance, high light tolerance, and photosystem II repair. Studies of related genes in other species link the family to photoprotection, cold tolerance, and stomatal response to light.
Annotations
- Chromosome
- 4
- Related genes
- VDE, NPQ1, LTO1
- GO terms
- homeostasis, Heat Dissipation, organogenesis, Chlorophyll Fluorescence, Memory, vitamin A anabolism, NO storage, pigment metabolism
- 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