Orange protein, phytoene synthase regulator, has protein disulfide reductase activity [PDF]
Plant Signaling & Behavior, 2022 Orange protein (OR) is known to interact with phytoene synthase (PSY) that commits the first step in carotenoid biosynthesis, and functions as a major post-transcriptional regulator on PSY. We here tried to reveal enzymatic characteristics of OR, that is,
Yuto Oogo +4 more
doaj +4 more sources
Molecular evolution and diversification of phytoene synthase (PSY) gene family [PDF]
Genetics and Molecular Biology, 2022 Phytoene synthase (PSY) is a crucial enzyme required for carotenoid biosynthesis, encoded by a gene family conserved in carotenoid-producing organisms. This gene family is diversified in angiosperms through distinct duplication events.
Marcia Pagno Lisboa +3 more
doaj +5 more sources
Characterization and functional analysis of phytoene synthase gene family in tobacco [PDF]
BMC Plant Biology, 2021 Background Carotenoids play important roles in photosynthesis, hormone signaling, and secondary metabolism. Phytoene synthase (PSY) catalyzes the first step of the carotenoid biosynthetic pathway.
Zhaojun Wang +8 more
doaj +5 more sources
Phytoene Synthase: The Key Rate-Limiting Enzyme of Carotenoid Biosynthesis in Plants [PDF]
Frontiers in Plant Science, 2022 Phytoene synthase (PSY) catalyzes the first committed step in the carotenoid biosynthesis pathway and is a major rate-limiting enzyme of carotenogenesis.
Xuesong Zhou +12 more
doaj +4 more sources
Functional analysis of the Brassica napus L. phytoene synthase (PSY) gene family. [PDF]
PLoS ONE, 2014 Phytoene synthase (PSY) has been shown to catalyze the first committed and rate-limiting step of carotenogenesis in several crop species, including Brassica napus L.
Ada López-Emparán +5 more
doaj +6 more sources
Perturbations in the Carotenoid Biosynthesis Pathway in Tomato Fruit Reactivate the Leaf-Specific Phytoene Synthase 2 [PDF]
Frontiers in Plant Science, 2022 The accumulation of the red carotenoid pigment lycopene in tomato (Solanum lycopersicum) fruit is achieved by increased carotenoid synthesis during ripening.
Uri Karniel +3 more
doaj +2 more sources
Functional Characterization of the First Bona Fide Phytoene Synthase in Red Algae from Pyropia yezoensis [PDF]
Marine DrugsThe formation of phytoene by condensing two geranylgeranyl diphosphate molecules catalyzed by phytoene synthase (PSY) is the first committed and rate-limiting step in carotenoid biosynthesis, which has been extensively investigated in bacteria, land ...
Cheng-Ling Li +6 more
doaj +2 more sources
The Carrot Phytoene Synthase 2 (DcPSY2) Promotes Salt Stress Tolerance through a Positive Regulation of Abscisic Acid and Abiotic-Related Genes in Nicotiana tabacum [PDF]
Plants, 2023 Background: Carotenoids, which are secondary metabolites derived from isoprenoids, play a crucial role in photo-protection and photosynthesis, and act as precursors for abscisic acid, a hormone that plays a significant role in plant abiotic stress ...
Orlando Acevedo +2 more
doaj +2 more sources
The Specialized Roles in Carotenogenesis and Apocarotenogenesis of the Phytoene Synthase Gene Family in Saffron [PDF]
Frontiers in Plant Science, 2019 Crocus sativus stigmas are the main source of crocins, which are glucosylated apocarotenoids derived from zeaxanthin cleavage that give saffron its red color. Phytoene synthase (PSY) mediates the first committed step in carotenoid biosynthesis in plants.
Oussama Ahrazem +10 more
doaj +2 more sources
Characterization of Phytoene Desaturase Knockout Carotenoid-Deficient Microalgal Mutants Generated by Cas9-Ribonucleoprotein Complexes. [PDF]
Physiol PlantABSTRACT Phytoene desaturase (PDS; EC 1.3.5.5) is a key enzyme of the carotenoid biosynthetic pathway, catalyzing the desaturation of phytoene, precursor of all carotenoids. In this study, several PDS‐knockout (PDS‐KO) transformants of the chlorophyte microalga Chlamydomonas reinhardtii were generated using a reverse genetics strategy. Two single guide
Molina-Márquez A +5 more
europepmc +2 more sources