Abstract:Light stimulates carotenoid synthesis in plants during photomorphogenesis through the expression of PHYTOENE SYNTHASE (PSY), a key gene in carotenoid biosynthesis. The orange Daucus carota (carrot) synthesizes and accumulates high amounts of carotenoids in the taproot that grows underground. Contrary to other organs, light impairs carrot taproot development and represses the expression of carotenogenic genes such as DcPSY1 and DcPSY2 reducing carotenoid accumulation. By means of an RNA-seq, in previous analysi… Show more
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