Results 21 to 30 of about 19,377 (277)

Metabolically engineered plant cell cultures as biofactories for the production of high-value carotenoids astaxanthin and canthaxanthin [PDF]

open access: yesScientific Reports
Astaxanthin and canthaxanthin are high-value carotenoids with growing demand due to their antioxidant properties and applications in food, cosmetic, and pharmaceutical sectors. However, natural sources are limited and current production methods are often
Bárbara A. Rebelo   +2 more
doaj   +2 more sources

Hot Spots of Phytoene Desaturase from Rhodobacter sphaeroides Influencing the Desaturation of Phytoene [PDF]

open access: yesCatalysts, 2021
Phytoene desaturase (CrtI, E.C. 1.3.99.31) shows variable desaturation activity, thereby introducing different numbers of conjugated double bonds (CDB) into the substrate phytoene. In particular, Rhodobacter sphaeroides CrtI is known to introduce additional 6 CDBs into the phytoene with 3 CDBs, generating neurosporene with 9 CDBs.
Bo Hyun Choi   +2 more
openaire   +1 more source

Phytoene Synthase: The Key Rate-Limiting Enzyme of Carotenoid Biosynthesis in Plants

open access: yesFrontiers 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   +6 more
semanticscholar   +1 more source

Mitosis Inhibitors Induce Massive Accumulation of Phytoene in the Microalga Dunaliella salina

open access: yesMarine Drugs, 2021
Phytoene is a colourless natural carotenoid that absorbs UV light and provides antioxidant and anti-inflammatory activities as well as protection against photodamage.
Yanan Xu, Patricia J. Harvey
doaj   +1 more source

Evaluation of Cellular Uptake and Removal of Chlorpropham in the Treatment of Dunaliella salina for Phytoene Production

open access: yesMarine Drugs, 2022
Chlorpropham is a carbamate herbicide that inhibits cell division and has been widely used as a potato sprout suppressant. Recently we showed that the microalga Dunaliella salina treated with chlorpropham massively accumulated the colourless carotenoids ...
Laura Mazzucchi   +2 more
doaj   +1 more source

Ultrasound-assisted extraction of carotenoids from phytoene-accumulating Chlorella sorokiniana microalgae: Effect of milling and performance of the green biosolvents 2-methyltetrahydrofuran and ethyl lactate.

open access: yesFood Chemistry, 2023
This study aimed at optimizing the accumulation of phytoene in Chlorella sorokiniana by using norflurazon and investigating the capacity of green and traditional solvents to extract carotenoids by ultrasound-assisted extraction with and without previous ...
Ángeles Morón-Ortiz   +5 more
semanticscholar   +1 more source

Overlapping and specialized roles of tomato phytoene synthases in carotenoid and abscisic acid production

open access: yesPlant Physiology, 2023
Carotenoids are plastidial isoprenoids required for photoprotection and phytohormone production in all plants. In tomato (Solanum lycopersicum), carotenoids also provide color to flowers and ripe fruit.
M. Ezquerro   +2 more
semanticscholar   +1 more source

Knockout of phytoene desaturase gene using CRISPR/Cas9 in highbush blueberry

open access: yesFrontiers in Plant Science, 2022
Among the New Plant Breeding Techniques (NPBTs), the CRISPR/Cas9 system represents a useful tool for target gene editing, improving the traits of the plants rapidly.
G. Vaia   +4 more
semanticscholar   +1 more source

Stereoisomers of Colourless Carotenoids from the Marine Microalga Dunaliella salina

open access: yesMolecules, 2020
Carotenoids comprise a diverse range of naturally occurring stereoisomers, which differ in their physico-chemical properties. Their biosynthesis begins with phytoene, which is a rarity among carotenoids because it is colourless.
Laura Mazzucchi   +2 more
doaj   +1 more source

Identification and Characterization Roles of Phytoene Synthase (PSY) Genes in Watermelon Development

open access: yesGenes, 2022
Phytoene synthase (PSY) plays an essential role in carotenoid biosynthesis. In this study, three ClPSY genes were identified through the watermelon genome, and their full-length cDNA sequences were cloned.
Xufeng Fang, P. Gao, F. Luan, Shi Liu
semanticscholar   +1 more source

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