Results 31 to 40 of about 221,674 (164)

Structural characterization of highly glucosylated crocins and regulation of their biosynthesis during flower development in Crocus

Frontiers in Plant Science, 2015
Crocin biosynthesis in Crocus has been proposed to proceed through a zeaxanthin cleavage pathway catalyzed by carotenoid cleavage dioxygenase 2 (CCD2), and followed by glucosylation reactions catalyzed by CsGT2 (UGT74AD1).
OUSSAMA eAHRAZEM, Angela eRubio Moraga, MARIA LUISA eJIMENO, Lourdes eGómez-Gómez   +3 more
doaj   +1 more source

Structural basis for carotenoid cleavage by an archaeal carotenoid dioxygenase [PDF]

, 2020
Apocarotenoids are important signaling molecules generated from carotenoids through the action of carotenoid cleavage dioxygenases (CCDs). These enzymes have a remarkable ability to cleave carotenoids at specific alkene bonds while leaving chemically ...
Kiser, Philip D, Shi, Wuxian, Daruwalla, Anahita, Farquhar, Erik R, Lee, Ho Jun, Khadka, Nimesh, Zhang, Jianye, von Lintig, Johannes   +7 more
core   +1 more source

Overexpression of the Gene Encoding Solanum lycopersicum Carotenoid Cleavage Dioxygenase 1A (SlCCD1A) Regulates Tomato Flavor Quality [PDF]

Shipin Kexue
SlCCD1A-OE lines of cherry tomato CI1005 and large-fruited tomato AC were selected to investigate the effect of SlCCD1A on tomato flavor quality. The transgenic plants were identified by real-time polymerase chain reaction (PCR), and the volatile ...
LOU Qianqi, MENG Liangzhe, ZHANG Qinghua, CHENG Baohui, CHENG Guoting, LIANG Yan
doaj   +1 more source

Tandem gene duplications drive divergent evolution of caffeine and crocin biosynthetic pathways in plants

BMC Biology, 2020
Background Plants have evolved a panoply of specialized metabolites that increase their environmental fitness. Two examples are caffeine, a purine psychotropic alkaloid, and crocins, a group of glycosylated apocarotenoid pigments.
Zhichao Xu, Xiangdong Pu, Ranran Gao, Olivia Costantina Demurtas, Steven J. Fleck, Michaela Richter, Chunnian He, Aijia Ji, Wei Sun, Jianqiang Kong, Kaizhi Hu, Fengming Ren, Jiejie Song, Zhe Wang, Ting Gao, Chao Xiong, Haoying Yu, Tianyi Xin, Victor A. Albert, Giovanni Giuliano, Shilin Chen, Jingyuan Song   +21 more
doaj   +1 more source

Hydroquinone dioxygenase from Pseudomonas fluorescens ACB: A novel member of the family of non-heme iron (II)-dependent dioxygenases [PDF]

, 2008
Hydroquinone 1,2-dioxygenase (HQDO), an enzyme involved in the catabolism of 4-hydroxyacetophenone in Pseudomonas fluorescens ACB, was purified to apparent homogeneity.
Westphal, Adrie H., R. H. H. van den Heuvel, van den Berg, Willy A. M., Heck, A.J.R., van den Berg, W.A.M., S. A. Synowsky, M. J. H. Moonen, A. H. Westphal, Westphal, A.H., Fraaije, M.W., Fraaije, Marco W., A. J. R. Heck, W. J. H. van Berkel, Berg, W.A.M., van den, Moonen, Marielle J. H., Synowsky, S.A., van Berkel, W.J.H., Berkel, W.J.H., van, Synowsky, Silvia A., van den Heuvel, R.H.H., Moonen, M.J.H., van den Heuvel, Robert H. H., van Berkel, Willem J. H., W. A. M. van den Berg, Heck, Albert J. R., Heuvel, R.H.H., van den, M. W. Fraaije   +26 more
core   +2 more sources

Multi-species transcriptome analyses for the regulation of crocins biosynthesis in Crocus

BMC Genomics, 2019
Background Crocins are soluble apocarotenoids that mainly accumulate in the stigma tissue of Crocus sativus and provide the characteristic red color to saffron spice, in addition to being responsible for many of the medicinal properties of saffron ...
Oussama Ahrazem, Javier Argandoña, Alessia Fiore, Andrea Rujas, Ángela Rubio-Moraga, Raquel Castillo, Lourdes Gómez-Gómez   +6 more
doaj   +1 more source

Mediating oxidative stress enhances α-ionone biosynthesis and strain robustness during process scaling up

Microbial Cell Factories, 2022
Background α-Ionone is highly valued in cosmetics and perfumery with a global usage of 100–1000 tons per year. Metabolic engineering by microbial fermentation offers a promising way to produce natural (R)-α-ionone in a cost-effective manner.
Ching-Ning Huang, Xiaohui Lim, Leonard Ong, Chinchin Lim, Xixian Chen, Congqiang Zhang   +5 more
doaj   +1 more source

Characterization of Transcriptional Expression and Regulation of Carotenoid Cleavage Dioxygenase 4b in Grapes

Frontiers in Plant Science, 2020
Norisoprenoids are important aromatic volatiles contributing to the pleasant floral/fruity odor in grapes and wine. They are produced from carotenoids through the cleavage of carotenoid cleavage dioxygenases (CCDs).
Nan Meng, Nan Meng, Yi Wei, Yi Wei, Yuan Gao, Yuan Gao, Keji Yu, Keji Yu, Jing Cheng, Jing Cheng, Xiang-Yi Li, Xiang-Yi Li, Chang-Qing Duan, Chang-Qing Duan, Qiu-Hong Pan, Qiu-Hong Pan   +15 more
doaj   +1 more source

Isolation and functional characterization of two dioxygenasese putatively involved in bixin biosynthesis in annatto (Bixa orellana L.) [PDF]

PeerJ, 2019
Carotenoid cleavage dioxygenases (CCDs) are enzymes that have been implicated in the biosynthesis of a wide diversity of secondary metabolites with important economic value, including bixin.
Victor Manuel Carballo-Uicab, Yair Cárdenas-Conejo, Alba Adriana Vallejo-Cardona, Margarita Aguilar-Espinosa, Jacobo Rodríguez-Campos, Hugo Serrano-Posada, José Alberto Narváez-Zapata, Felipe Vázquez-Flota, Renata Rivera-Madrid   +8 more
doaj   +2 more sources

Identification and Characterization of CCD Gene Family in Rose (Rosa chinensis Jacq. ‘Old Blush’) and Gene Co-Expression Network in Biosynthesis of Flower Scent

Horticulturae, 2023
Rose (Rosa sp.) is a widely used raw material for essential oil extraction and fragrance production. The carotenoid cleavage dioxygenases pathway is one of the main metabolic pathways for the degradation of carotenoids, which is located downstream of the
Fangfang Ji, Jie Wu, Zhao Zhang
doaj   +1 more source