Results 31 to 40 of about 16,188 (237)

A foundation for provitamin A biofortification of maize: genome-wide association and genomic prediction models of carotenoid levels. [PDF]

open access: yes, 2014
Efforts are underway for development of crops with improved levels of provitamin A carotenoids to help combat dietary vitamin A deficiency. As a global staple crop with considerable variation in kernel carotenoid composition, maize (Zea mays L.) could ...
Buckler, Edward S   +13 more
core   +1 more source

Phytoene and Phytoene-Rich Microalgae Extracts Extend Lifespan in C. elegans and Protect against Amyloid-β Toxicity in an Alzheimer’s Disease Model

open access: yesAntioxidants
Phytoene is a colourless carotenoid widely available from dietary sources and a precursor for the synthesis of other carotenoids. Although present at high concentrations across different tissues, phytoene is largely viewed as not having physiological ...
Ángeles Morón-Ortiz   +4 more
doaj   +1 more source

Plant-type phytoene desaturase: Functional evaluation of structural implications. [PDF]

open access: yesPLoS ONE, 2017
Phytoene desaturase (PDS) is an essential plant carotenoid biosynthetic enzyme and a prominent target of certain inhibitors, such as norflurazon, acting as bleaching herbicides.
Julian Koschmieder   +6 more
doaj   +1 more source

A universal primer for isolation of fragments of a gene encoding phytoene desaturase for use in virus-induced gene silencing (VIGS) studies [PDF]

open access: yes, 2010
We have been using Virus-Induced Gene Silencing (VIGS) to test the function of genes that are candidates for involvement in floral senescence. Although VIGS is a powerful tool for assaying the effects of gene silencing in plants, relatively few taxa have
Cai-Zhong, J.   +4 more
core   +1 more source

The Carrot Phytoene Synthase 2 (DcPSY2) Promotes Salt Stress Tolerance through a Positive Regulation of Abscisic Acid and Abiotic-Related Genes in Nicotiana tabacum

open access: yesPlants, 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   +1 more source

Mutant-based model of two independent pathways for carotenoid-mediated chloroplast biogenesis in Arabidopsis embryos [PDF]

open access: yes, 2019
Chloroplasts are essential for autonomous plant growth, and their biogenesis is a complex process requiring both plastid and nuclear genome. One of the essential factors required for chloroplast biogenesis are carotenoids.
Colinas Martinez, Maite   +3 more
core   +1 more source

Regulation of tomato fruit ripening [PDF]

open access: yes, 2009
Fruit ripening is a sophisticatedly orchestrated developmental process, unique to plants, that results in major physiological and metabolic changes, ultimately leading to fruit decay and seed dispersal.
Bouzayen, Mondher   +4 more
core   +2 more sources

The stereospecific biosynthesis of phytoene and polyunsaturated carotenes [PDF]

open access: yesBiochemical Journal, 1967
1. The incorporation of [2-(14)C,(5R)-5-(3)H(1)]mevalonic acid and [2-(14)C,5-(3)H(2)]-mevalonic acid into phytoene, phytofluene, zeta-carotene, neurosporene, alpha-, beta-, gamma- and delta-carotene and lycopene by slices of fruit from two tomato mutants (delta and tangerine) and into alpha- and beta-carotene by bean leaves has been studied. 2. In the
R J, Williams   +3 more
openaire   +2 more sources

A common phytoene synthase mutation underlies white petal varieties of the California poppy. [PDF]

open access: yes, 2019
The California poppy (Eschscholzia californica) is renowned for its brilliant golden-orange flowers, though white petal variants have been described.
Gong, Xue   +2 more
core   +1 more source

Kinetics of lycopene degradation in sunflower and grape seed oils [PDF]

open access: yes, 2018
The stability of lycopene in two vegetable oils, sunflower seed oil (SSO) and grape seed oil (GSO), was investigated by analyzing the carotenoid degradation kinetics in the temperature range of 10–40°C.
González, Erenio   +3 more
core   +1 more source

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