Results 61 to 70 of about 2,400 (162)

Carotenoid cleavage dioxygenases and their apocarotenoid products in plants

Plant Biotechnology, 2009
Carotenoid cleavage dioxygenases (CCDs) catalyze the cleavage of carotenoids in various organisms. In Arabidopsis, the CCD enzyme family consists of nine members, which are further divided into two subfamilies: five 9-cis epoxycarotenoid dioxygenases (NCEDs) and four CCDs.
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Carotenoid Cleavage Dioxygenase (CmCCD4a) Contributes to White Color Formation in Chrysanthemum Petals [PDF]

Plant Physiology, 2006
AbstractThe white petals of chrysanthemum (Chrysanthemum morifolium Ramat.) are believed to contain a factor that inhibits the accumulation of carotenoids. To find this factor, we performed polymerase chain reaction-Select subtraction screening and obtained a clone expressed differentially in white and yellow petals.
Akemi, Ohmiya, Sanae, Kishimoto, Ryutaro, Aida, Satoshi, Yoshioka, Katsuhiko, Sumitomo   +4 more
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Negative Regulators of Rice Agronomic Traits: Functional Insights and Applications in Genome Editing‐Based Breeding

Plant Biotechnology Journal, EarlyView.
ABSTRACT Rice is the staple crop for more than half of the global population, and improving grain yield, grain quality, and stress resistance remain central goals of modern rice breeding. Among current precision breeding strategies, genome editing has created new opportunities for crop improvement, but its success depends heavily on the selection of ...
Wenhao Wu, Feng Jin, Huaxiang Xu, Ranran Liao, Zhongming Fang   +4 more
wiley   +1 more source

Directed evolution of Arabidopsis thaliana carotenoid cleavage dioxygenase 1

Plant Growth Regulation, 2011
Arabidopsis thaliana Carotenoid Cleavage Dioxygenase 1 (AtCCD1) is the role model for CCDs, a class of enzymes that cleave highly specific C=C double bonds in carotenoids and apo-carotenoids. CCD1s cleave carotenoids symmetrically and regio-selective at the 9-10 and 9’-10’ position.
Yangrong Cao, Xiao-Li Guo, Quan Zhang, Zi-Yi Cao, Yan-Xiu Zhao, Hui Zhang   +5 more
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Enhanced Production of Apocarotenoids by Salicylic Acid Elicitation in Cell Suspension Cultures of Saffron (Crocus sativus L.)

Horticulturae, 2022
A cell suspension culture of saffron (Crocus sativus L.) was previously established from style-derived calli to obtain an in vitro system for crocin, an uncommon and valuable water-soluble apocarotenoid, and carotenoid production suitable for future ...
Azar Moradi, Fatemeh Zarinkamar, Giovanni Mita, Sofia Caretto, Angelo De Paolis   +4 more
doaj   +1 more source

Gene Editing of Nicotiana benthamiana Architecture for Space‐Efficient Production of Recombinant Proteins in Closed Environments

Plant Biotechnology Journal, EarlyView.
ABSTRACT Indoor vertical farming (VF) offers practical advantages for the cultivation of plant protein bio‐factories including plant uniformity, product consistency, water/nutrient recycling and production cycles on a year‐round basis. Much progress has been achieved toward the development of innovative systems for artificial lighting, automated ...
Béatrice Giroux, Kristina LeBreux, Louis Feyzeau, Marie‐Claire Goulet, Charles Goulet, Dominique Michaud   +5 more
wiley   +1 more source

Evolutionarily distinct carotenoid cleavage dioxygenases are responsible for crocetin production in Buddleja davidii [PDF]

Journal of Experimental Botany, 2017
Crocetin, one of the few colored apocarotenoids known in nature, is present in flowers and fruits and has long been used medicinally and as a colorant. Saffron is the main source of crocetin, although a few other plants produce lower amounts of this apocarotenoid. Notably, Buddleja davidii accumulates crocetin in its flowers.
Ahrazem El Kadiri, Oussama, Diretto, Gianfranco, Argandoña Picazo, Javier, Rubio Moraga, Ángela, Julve, José Manuel, Orzaez, Diego, Granell Richart, Antonio, Gómez Gómez, María Lourdes   +7 more
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Natural CCD2 Variants and RNA Interference for Boosting Crocin Biosynthesis in Tomato

Biology
Crocin biosynthesis involves a complex network of enzymes with biosynthetic and modifier enzymes, and the manipulation of these pathways holds promise for improving human health through the broad exploitation of these bioactive metabolites.
Elena Moreno-Giménez, Eduardo Parreño, Lucía Morote, Alberto José López Jiménez, Cristian Martínez Fajardo, Silvia Presa, Ángela Rubio-Moraga, Antonio Granell, Oussama Ahrazem, Lourdes Gómez-Gómez   +9 more
doaj   +1 more source

Integrated Metabolomic and Transcriptomic Analysis Revealed the Capsanthin Biosynthesis and Sequestration in Processing Type Red Pepper (Capsicum annuum var. conoides)

eFood, Volume 7, Issue 4, August 2026.
This study establishes that fruit color divergence in Yanjiao pepper cultivars arises from hierarchical regulation of carotenoid metabolism, driven by yellow‐blue chromaticity variation and cultivar‐specific metabolic strategies. These findings provide a mechanistic framework for breeding peppers with enhanced color stability and nutraceutical value ...
Qi Chen, Ming Wang, Minjie Duan, Youjin Hao, Jian Ming, Honghai Li   +5 more
wiley   +1 more source

Carotenoid Cleavage Dioxygenases: Identification, Expression, and Evolutionary Analysis of This Gene Family in Tobacco [PDF]

International Journal of Molecular Sciences, 2019
Carotenoid cleavage dioxygenases (CCDs) selectively catalyze carotenoids, forming smaller apocarotenoids that are essential for the synthesis of apocarotenoid flavor, aroma volatiles, and phytohormone ABA/SLs, as well as responses to abiotic stresses.
Qianqian Zhou, Qingchang Li, Peng Li, Songtao Zhang, Che Liu, Jingjing Jin, Peijian Cao, Yongxia Yang   +7 more
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