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Carotenoid Metabolism
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Carotenoid Metabolism

A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Molecular Plant Sciences".

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 10983

Special Issue Editor

Dr. Andrew J. Simkin

E-Mail Website1 Website2
Guest Editor
Department of Genetics, Genomics and Breeding, NIAB-EMR, New Road, East Malling, Kent ME19 6BJ, UK
Interests: crop biotechnology; breeding; flavour; secondary metabolism; crop improvement
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Carotenoids and their derived products constitute one of the largest class of molecules in nature and are important to the color, flavor, and fragrance of fruits and flowers, and are key metabolites in many other organisms. For this Special Issue, we are inviting manuscripts that address the role(s) of carotenoids and apocarotenoids in biological organisms. We welcome research papers, technical publications demonstrating proof-of-concept techniques (for example, to quantify carotenoids and apocarotenoids at low concentrations in diverse tissues), as well as reviews providing up-to-date knowledge to new readers.

Dr. Andrew J. Simkin
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. There is an Article Processing Charge (APC) for publication in this open access journal. For details about the APC please see here. Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

Carotenoids
Apocarotenoid
Carotenoid binding proteins
Metabolism
Flavour and aroma
Signalling

Published Papers (2 papers)

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Research

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21 pages, 9335 KiB  
Article
Combined Metabolite and Transcriptome Profiling Reveals the Norisoprenoid Responses in Grape Berries to Abscisic Acid and Synthetic Auxin
by Lei He, Nan Meng, Simone D. Castellarin, Yu Wang, Qi Sun, Xiang-Yi Li, Zhi-Gang Dong, Xiao-Ping Tang, Chang-Qing Duan and Qiu-Hong Pan
Int. J. Mol. Sci. 2021, 22(3), 1420; https://doi.org/10.3390/ijms22031420 - 31 Jan 2021
Cited by 17 | Viewed by 3165
Abstract
The abscisic acid (ABA) increase and auxin decline are both indicators of ripening initiation in grape berry, and norisoprenoid accumulation also starts at around the onset of ripening. However, the relationship between ABA, auxin, and norisoprenoids remains largely unknown, especially at the transcriptome [...] Read more.
The abscisic acid (ABA) increase and auxin decline are both indicators of ripening initiation in grape berry, and norisoprenoid accumulation also starts at around the onset of ripening. However, the relationship between ABA, auxin, and norisoprenoids remains largely unknown, especially at the transcriptome level. To investigate the transcriptional and posttranscriptional regulation of the ABA and synthetic auxin 1-naphthaleneacetic acid (NAA) on norisoprenoid production, we performed time-series GC-MS and RNA-seq analyses on Vitis vinifera L. cv. Cabernet Sauvignon grape berries from pre-veraison to ripening. Higher levels of free norisoprenoids were found in ABA-treated mature berries in two consecutive seasons, and both free and total norisoprenoids were significantly increased by NAA in one season. The expression pattern of known norisoprenoid-associated genes in all samples and the up-regulation of specific alternative splicing isoforms of VviDXS and VviCRTISO in NAA-treated berries were predicted to contribute to the norisoprenoid accumulation in ABA and NAA-treated berries. Combined weighted gene co-expression network analysis (WGCNA) and DNA affinity purification sequencing (DAP-seq) analysis suggested that VviGATA26, and the previously identified switch genes of myb RADIALIS (VIT_207s0005g02730) and MAD-box (VIT_213s0158g00100) could be potential regulators of norisoprenoid accumulation. The positive effects of ABA on free norisoprenoids and NAA on total norisoprenoid accumulation were revealed in the commercially ripening berries. Since the endogenous ABA and auxin are sensitive to environmental factors, this finding provides new insights to develop viticultural practices for managing norisoprenoids in vineyards in response to changing climates. Full article
(This article belongs to the Special Issue Carotenoid Metabolism)
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Review

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16 pages, 1229 KiB  
Review
Carotenoid Biosynthesis and Plastid Development in Plants: The Role of Light
by Rocio Quian-Ulloa and Claudia Stange
Int. J. Mol. Sci. 2021, 22(3), 1184; https://doi.org/10.3390/ijms22031184 - 26 Jan 2021
Cited by 47 | Viewed by 7382
Abstract
Light is an important cue that stimulates both plastid development and biosynthesis of carotenoids in plants. During photomorphogenesis or de-etiolation, photoreceptors are activated and molecular factors for carotenoid and chlorophyll biosynthesis are induced thereof. In fruits, light is absorbed by chloroplasts in the [...] Read more.
Light is an important cue that stimulates both plastid development and biosynthesis of carotenoids in plants. During photomorphogenesis or de-etiolation, photoreceptors are activated and molecular factors for carotenoid and chlorophyll biosynthesis are induced thereof. In fruits, light is absorbed by chloroplasts in the early stages of ripening, which allows a gradual synthesis of carotenoids in the peel and pulp with the onset of chromoplasts’ development. In roots, only a fraction of light reaches this tissue, which is not required for carotenoid synthesis, but it is essential for root development. When exposed to light, roots start greening due to chloroplast development. However, the colored taproot of carrot grown underground presents a high carotenoid accumulation together with chromoplast development, similar to citrus fruits during ripening. Interestingly, total carotenoid levels decrease in carrots roots when illuminated and develop chloroplasts, similar to normal roots exposed to light. The recent findings of the effect of light quality upon the induction of molecular factors involved in carotenoid synthesis in leaves, fruit, and roots are discussed, aiming to propose consensus mechanisms in order to contribute to the understanding of carotenoid synthesis regulation by light in plants. Full article
(This article belongs to the Special Issue Carotenoid Metabolism)
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