PDS — Solanum tuberosum

Summary

PGSC0003DMG400009156, the potato gene PDS (also known as StPDS3), encodes a phytoene desaturase with 9,9'-di-cis-zeta-carotene desaturase and phytoene dehydrogenase activities, binding FAD and localizing to plastid membranes, chloroplast thylakoids and envelopes. In potato, PDS is associated with carotenoid and pigment anabolism, pre-harvest sprouting, photoprotection, response to herbicide, cell wall thickening, flavonoid and hormone metabolism, and traits including beta-carotene and carotene content, chlorophyll content, photosynthetic rate, water use efficiency, respiration rate, ethylene sensitivity, and vivipary. Phenotypic associations include phytoene desaturation, chlorophyll biosynthesis, fruit pigmentation, and root growth. Studies of related genes in other species link the family to carotenoid biosynthesis, photobleaching, drought tolerance, chilling injury resistance, and leaf and fruit pigmentation traits.