WebbThis up-regulation of PSYgene expression is mediated by the phytochrome family of photoreceptors under red (R) and far-red (FR) light (12, 13, 16, 18). Phytochromes exist in two photoreversible forms: Pr, which absorbs … WebbCrtYB (phytoene-β-carotene synthase - PBS) gene from red yeast Xanthophyllomyces dendrorhous encodes for a bifunctional enzyme that …
Characterization and functional analysis of phytoene …
WebbPhytoene synthase (Psy), the first step in the carotenoid pathway, converting geranylgeranyl diphosphate (GGDP) into phytoene, has been silenced in tomato fruit, … WebbIn plant carotenoid biosynthesis, phytoene synthase gene (Psy) plays a key role in catalyzing the head-to-head condensation of geranylgeranyl diphosphate molecules to … try both
Ubiquitination of phytoene synthase 1 precursor modulates
Webb19 dec. 2024 · Phytoene synthase (PSY) is a crucial enzyme required for carotenoid biosynthesis, encoded by a gene family conserved in carotenoid-producing organisms. … Webb11 apr. 2024 · Phytoene synthase (PSY) is the upstream port enzyme and rate-limiting enzyme of the carotenoid synthesis pathway in plants (Ma et al. 2024 ). It is related to abiotic stress such as high salt, drought and high light, and can respond to abiotic stress and self-regulate, and participate in plant resilience response. WebbBy adding only two genes, a plant phytoene synthase (psy) and a bacterial phytoene desaturase (crt I), the pathway is turned back on and β-carotene consequently accumulates in the grain. Fig 1: Pathway overview: … try books