Results 11 to 20 of about 19,377 (277)

Perturbations in the Carotenoid Biosynthesis Pathway in Tomato Fruit Reactivate the Leaf-Specific Phytoene Synthase 2

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, Nastacia Adler Berke, Varda Mann, Joseph Hirschberg   +3 more
doaj   +2 more sources

Bioactive Lipophilic Antioxidants (Carotenoids, Tocols, Retinol, and Coenzyme Q₁₀) in Human and Animal Tissues: Development and Validation of a Rapid Extraction and Chromatographic Method for Nutrition and Health Studies [PDF]

Antioxidants
A rapid and robust analytical method was validated for the simultaneous extraction and quantification of carotenoids and other lipophilic antioxidants (tocopherols, tocotrienols, retinol and coenzyme Q10) in human and animal tissues using a tandem RRLC ...
Ana M. Benítez-González, Carla M. Stinco, Mladen Brnčić, Francisco J. Barba, Antonio J. Meléndez-Martínez   +4 more
doaj   +2 more sources

Characterization and functional analysis of phytoene synthase gene family in tobacco

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, Lin Zhang, Chen Dong, Jinggong Guo, Lifeng Jin, Pan Wei, Feng Li, Xiaoquan Zhang, Ran Wang   +8 more
doaj   +2 more sources

Phytoene Accumulation in the Novel Microalga Chlorococcum sp. Using the Pigment Synthesis Inhibitor Fluridone

Marine Drugs, 2019
Carotenoids are lipophilic pigments found in plants and algae, as well as some bacteria, archaea, and fungi that serve two functions—(1) as light harvesting molecules—primary carotenoids, and (2) as antioxidants, acting against reactive ...
Kelly Laje, Mark Seger, Barry Dungan, Peter Cooke, Juergen Polle, F. Omar Holguin   +5 more
doaj   +2 more sources

Accumulation of phytoene and astaxanthin and related genes expression in Haematococcus pluvialis under sodium acetate stress

Aquatic Biology, 2020
Phytoene and astaxanthin are 2 important carotenoids in the green alga Haematococcus pluvialis. Under environmental stress, the synthesis of phytoene in H.
Cong, X, Zang, X, Dong, M, Wang, Z, He, B, Hou, L, Wei, X, Zhang, F, Shang, M, Yangzong, Z, Li, R, Zhang, X   +11 more
doaj   +2 more sources

Isolation of Carrot Chromoplasts and Assessment of Their Carotenoid Content and Bioaccessibility [PDF]

Molecules
The bioaccessibility (fraction of compounds released from the food matrix and available for absorption) and carotenoid content of carrot chromoplasts obtained through high-speed centrifugation using sucrose gradients were assessed.
Ana M. Benítez-González, Lourdes Gómez-Gómez, Oussama Ahrazem, Patricia Esquivel, Carla M. Stinco, Antonio J. Meléndez-Martínez   +5 more
doaj   +2 more sources

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

PLoS 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, Mirjam Fehling-Kaschek, Patrick Schaub, Sandro Ghisla, Anton Brausemann, Jens Timmer, Peter Beyer   +6 more
doaj   +2 more sources

Dietary carotenoids and breast cancer risk: evidence from a large population-based incident case-control study [PDF]

Nutrition & Metabolism
Background Although mechanistic studies suggest protective roles for carotenoids against breast cancer (BC), human studies yield inconsistent findings. Few have comprehensively evaluated dietary intake of individual and grouped carotenoids in relation to
Bahar Darouei, Torsten Bohn, Farhad Vahid, Reza Amani-Beni, Shaghayegh Haghjooy Javanmard, Kazem Zendehdel, Ibrahim Abdollahpour   +6 more
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The Bacterial Phytoene Desaturase-Encoding Gene (CRTI) is an Efficient Selectable Marker for the Genetic Transformation of Eukaryotic Microalgae

Metabolites, 2019
Genetic manipulation shows great promise to further boost the productivity of microalgae-based compounds. However, selection of microalgal transformants depends mainly on the use of antibiotics, which have raised concerns about their potential impacts on
Ana Molina-Márquez, Marta Vila, Javier Vigara, Ana Borrero, Rosa León   +4 more
doaj   +2 more sources

Strigolactone Levels in Dicot Roots Are Determined by an Ancestral Symbiosis-Regulated Clade of the PHYTOENE SYNTHASE Gene Family

Frontiers in Plant Science, 2018
Strigolactones (SLs) are apocarotenoid phytohormones synthesized from carotenoid precursors. They are produced most abundantly in roots for exudation into the rhizosphere to cope with mineral nutrient starvation through support of root symbionts ...
Ron Stauder, Ralf Welsch, Maurizio Camagna, Wouter Kohlen, Gerd U. Balcke, Alain Tissier, Michael H. Walter   +6 more
doaj   +2 more sources