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Zheng J, Yang X, Ye J, Su D, Wang L, Liao Y, Zhang W, Wang Q, Chen Q, Xu F. Multiomics analysis provides new insights into the regulatory mechanism of carotenoid biosynthesis in yellow peach peel. MOLECULAR HORTICULTURE 2023; 3:23. [PMID: 37919829 PMCID: PMC10623742 DOI: 10.1186/s43897-023-00070-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 10/11/2023] [Indexed: 11/04/2023]
Abstract
Carotenoids, as natural tetraterpenes, play a pivotal role in the yellow coloration of peaches and contribute to human dietary health. Despite a relatively clear understanding of the carotenoid biosynthesis pathway, the regulatory mechanism of miRNAs involved in carotenoid synthesis in yellow peaches remain poorly elucidated. This study investigated a total of 14 carotenoids and 40 xanthophyll lipids, including six differentially accumulated carotenoids: violaxanthin, neoxanthin, lutein, zeaxanthin, cryptoxanthin, and (E/Z)-phytoene. An integrated analysis of RNA-seq, miRNA-seq and degradome sequencing revealed that miRNAs could modulate structural genes such as PSY2, CRTISO, ZDS1, CHYB, VDE, ZEP, NCED1, NCED3 and the transcription factors NAC, ARF, WRKY, MYB, and bZIP, thereby participating in carotenoid biosynthesis and metabolism. The authenticity of miRNAs and target gene was corroborated through quantitative real-time PCR. Moreover, through weighted gene coexpression network analysis and a phylogenetic evolutionary study, coexpressed genes and MYB transcription factors potentially implicated in carotenoid synthesis were identified. The results of transient expression experiments indicated that mdm-miR858 inhibited the expression of PpMYB9 through targeted cleavage. Building upon these findings, a regulatory network governing miRNA-mediated carotenoid synthesis was proposed. In summary, this study comprehensively identified miRNAs engaged in carotenoid biosynthesis and their putative target genes, thus enhancing the understanding of carotenoid accumulation and regulatory mechanism in yellow peach peel and expanding the gene regulatory network of carotenoid synthesis.
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Affiliation(s)
- Jiarui Zheng
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China
| | - Xiaoyan Yang
- School of Biology and Agriculture, Shaoguan University, Shaoguan, 512005, China
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan, 512005, China
| | - Jiabao Ye
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China
- Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, Shaoguan University, Shaoguan, 512005, China
| | - Dongxue Su
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China
| | - Lina Wang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China
| | - Yongling Liao
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China
| | - Weiwei Zhang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China
| | - Qijian Wang
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China
| | - Qiangwen Chen
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China
| | - Feng Xu
- College of Horticulture and Gardening, Yangtze University, Jingzhou, 434025, China.
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2
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Xue G, Hu L, Zhu L, Chen Y, Qiu C, Fan R, Ma X, Cao Z, Chen J, Shi J, Hao Z. Genome-Wide Identification and Expression Analysis of CCO Gene Family in Liriodendron chinense. PLANTS (BASEL, SWITZERLAND) 2023; 12:1975. [PMID: 37653892 PMCID: PMC10220847 DOI: 10.3390/plants12101975] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 04/29/2023] [Accepted: 05/03/2023] [Indexed: 09/02/2023]
Abstract
Carotenoid cleavage oxygenase (CCO) is an enzyme that can catalyze carotenoids to volatile aromatic substances and participate in the biosynthesis of two important phytohormones, i.e., abscisic acid (ABA) and strigolactone (SL). However, the genome-wide identification and analysis of the CCO gene family in the rare and endangered woody plant Liriodendron chinense has not been reported. Here, we performed a genome-wide analysis of the CCO gene family in the L. chinense genome and examined its expression pattern during different developmental processes and in response to various abiotic stresses. A total of 10 LcCCO genes were identified and divided into 6 subfamilies according to the phylogenetic analysis. Subcellular localization prediction showed that most of the LcCCO proteins were located in the cytoplasm. Gene replication analysis showed that segmental and tandem duplication contributed to the expansion of this gene family in the L. chinense genome. Cis-element prediction showed that cis-elements related to plant hormones, stress and light response were widely distributed in the promoter regions of LcCCO genes. Gene expression profile analysis showed that LcNCED3b was extensively involved in somatic embryogenesis, especially the somatic embryo maturation, as well as in response to heat and cold stress in leaves. Furthermore, qRT-PCR analysis showed that LcNCED3b obviously responded to drought stress in roots and leaves. This study provides a comprehensive overview of the LcCCO gene family and a potential gene target for the optimization of the somatic embryogenesis system and resistance breeding in the valuable forest tree L. chinense.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Jisen Shi
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
| | - Zhaodong Hao
- Key Laboratory of Forest Genetics & Biotechnology of Ministry of Education, Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
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3
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A brief review on natural dyes, pigments: Recent advances and future perspectives. RESULTS IN CHEMISTRY 2023. [DOI: 10.1016/j.rechem.2022.100733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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4
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Votta C, Fiorilli V, Haider I, Wang JY, Balestrini R, Petřík I, Tarkowská D, Novák O, Serikbayeva A, Bonfante P, Al‐Babili S, Lanfranco L. Zaxinone synthase controls arbuscular mycorrhizal colonization level in rice. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2022; 111:1688-1700. [PMID: 35877598 PMCID: PMC9543690 DOI: 10.1111/tpj.15917] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 07/05/2022] [Accepted: 07/21/2022] [Indexed: 05/12/2023]
Abstract
The Oryza sativa (rice) carotenoid cleavage dioxygenase OsZAS was described to produce zaxinone, a plant growth-promoting apocarotenoid. A zas mutant line showed reduced arbuscular mycorrhizal (AM) colonization, but the mechanisms underlying this behavior are unknown. Here, we investigated how OsZAS and exogenous zaxinone treatment regulate mycorrhization. Micromolar exogenous supply of zaxinone rescued root growth but not the mycorrhizal defects of the zas mutant, and even reduced mycorrhization in wild-type and zas genotypes. The zas line did not display the increase in the level of strigolactones (SLs) that was observed in wild-type plants at 7 days post-inoculation with AM fungus. Moreover, exogenous treatment with the synthetic SL analog GR24 rescued the zas mutant mycorrhizal phenotype, indicating that the lower AM colonization rate of zas is caused by a deficiency in SLs at the early stages of the interaction, and indicating that during this phase OsZAS activity is required to induce SL production, possibly mediated by the Dwarf14-Like (D14L) signaling pathway. OsZAS is expressed in arbuscule-containing cells, and OsPT11prom::OsZAS transgenic lines, where OsZAS expression is driven by the OsPT11 promoter active in arbusculated cells, exhibit increased mycorrhization compared with the wild type. Overall, our results show that the genetic manipulation of OsZAS activity in planta leads to a different effect on AM symbiosis from that of exogenous zaxinone treatment, and demonstrate that OsZAS influences the extent of AM colonization, acting as a component of a regulatory network that involves SLs.
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Affiliation(s)
- Cristina Votta
- Department of Life Sciences and Systems BiologyUniversity of TurinTurin10125Italy
| | - Valentina Fiorilli
- Department of Life Sciences and Systems BiologyUniversity of TurinTurin10125Italy
| | - Imran Haider
- The BioActives Lab, Center for Desert Agriculture (CDA), Biological and Environment Science and Engineering (BESE)King Abdullah University of Science and TechnologyThuwal23955Saudi Arabia
| | - Jian You Wang
- The BioActives Lab, Center for Desert Agriculture (CDA), Biological and Environment Science and Engineering (BESE)King Abdullah University of Science and TechnologyThuwal23955Saudi Arabia
| | - Raffaella Balestrini
- National Research CouncilInstitute for Sustainable Plant ProtectionTurin10135Italy
| | - Ivan Petřík
- Laboratory of Growth Regulators, Faculty of SciencePalacký University and Institute of Experimental Botany, The Czech Academy of SciencesOlomouc78371Czech Republic
| | - Danuše Tarkowská
- Laboratory of Growth Regulators, Faculty of SciencePalacký University and Institute of Experimental Botany, The Czech Academy of SciencesOlomouc78371Czech Republic
| | - Ondřej Novák
- Laboratory of Growth Regulators, Faculty of SciencePalacký University and Institute of Experimental Botany, The Czech Academy of SciencesOlomouc78371Czech Republic
| | - Akmaral Serikbayeva
- The BioActives Lab, Center for Desert Agriculture (CDA), Biological and Environment Science and Engineering (BESE)King Abdullah University of Science and TechnologyThuwal23955Saudi Arabia
| | - Paola Bonfante
- Department of Life Sciences and Systems BiologyUniversity of TurinTurin10125Italy
| | - Salim Al‐Babili
- The BioActives Lab, Center for Desert Agriculture (CDA), Biological and Environment Science and Engineering (BESE)King Abdullah University of Science and TechnologyThuwal23955Saudi Arabia
| | - Luisa Lanfranco
- Department of Life Sciences and Systems BiologyUniversity of TurinTurin10125Italy
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5
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In silico analysis of carotenoid biosynthesis pathway in cassava (Manihot esculenta Crantz). J Genet 2022. [DOI: 10.1007/s12041-021-01345-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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6
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Luciano MP, Timilsina R, Schnermann MJ, Dickinson AJ. Imaging retinaldehyde-protein binding in plants using a merocyanine reporter. Methods Enzymol 2022; 671:421-433. [DOI: 10.1016/bs.mie.2022.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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7
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Mi J, Moreno JC, Alagoz Y, Liew KX, Balakrishna A, Zheng X, Al-Babili S. Ultra-high performance liquid chromatography-mass spectrometry analysis of plant apocarotenoids. Methods Enzymol 2022; 670:285-309. [DOI: 10.1016/bs.mie.2021.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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8
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Haeri F, Nouri M, Nezamoleslami S, Moradi A, Ghiasvand R. Role of dietary antioxidants and vitamins intake in semen quality parameters: A cross-sectional study. Clin Nutr ESPEN 2022; 48:434-440. [DOI: 10.1016/j.clnesp.2022.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 11/30/2021] [Accepted: 01/03/2022] [Indexed: 11/25/2022]
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9
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Abstract
Carotenoids constitute an essential dietary component of animals and other non-carotenogenic species which use these pigments in both their modified and unmodified forms. Animals utilize uncleaved carotenoids to mitigate light damage and oxidative stress and to signal fitness and health. Carotenoids also serve as precursors of apocarotenoids including retinol, and its retinoid metabolites, which carry out essential functions in animals by forming the visual chromophore 11-cis-retinaldehyde. Retinoids, such as all-trans-retinoic acid, can also act as ligands of nuclear hormone receptors. The fact that enzymes and biochemical pathways responsible for the metabolism of carotenoids in animals bear resemblance to the ones in plants and other carotenogenic species suggests an evolutionary relationship. We will explore some of the modes of transmission of carotenoid genes from carotenogenic species to metazoans. This apparent relationship has been successfully exploited in the past to identify and characterize new carotenoid and retinoid modifying enzymes. We will review approaches used to identify putative animal carotenoid enzymes, and we will describe methods used to functionally validate and analyze the biochemistry of carotenoid modifying enzymes encoded by animals.
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Affiliation(s)
- Alexander R Moise
- Northern Ontario School of Medicine, Sudbury, ON, Canada; Department of Chemistry and Biochemistry, Biology and Biomolecular Sciences Program, Laurentian University, Sudbury, ON, Canada.
| | - Sepalika Bandara
- Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Johannes von Lintig
- Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
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10
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Jia KP, Mi J, Ablazov A, Ali S, Yang Y, Balakrishna A, Berqdar L, Feng Q, Blilou I, Al-Babili S. Iso-anchorene is an endogenous metabolite that inhibits primary root growth in Arabidopsis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 107:54-66. [PMID: 33837613 DOI: 10.1111/tpj.15271] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 03/30/2021] [Accepted: 04/05/2021] [Indexed: 06/12/2023]
Abstract
Carotenoid-derived regulatory metabolites and hormones are generally known to arise through the oxidative cleavage of a single double bond in the carotenoid backbone, which yields mono-carbonyl products called apocarotenoids. However, the extended conjugated double bond system of these pigments predestines them also to repeated cleavage forming dialdehyde products, diapocarotenoids, which have been less investigated due to their instability and low abundance. Recently, we reported on the short diapocarotenoid anchorene as an endogenous Arabidopsis metabolite and specific signaling molecule that promotes anchor root formation. In this work, we investigated the biological activity of a synthetic isomer of anchorene, iso-anchorene, which can be derived from repeated carotenoid cleavage. We show that iso-anchorene is a growth inhibitor that specifically inhibits primary root growth by reducing cell division rates in the root apical meristem. Using auxin efflux transporter marker lines, we also show that the effect of iso-anchorene on primary root growth involves the modulation of auxin homeostasis. Moreover, by using liquid chromatography-mass spectrometry analysis, we demonstrate that iso-anchorene is a natural Arabidopsis metabolite. Chemical inhibition of carotenoid biosynthesis led to a significant decrease in the iso-anchorene level, indicating that it originates from this metabolic pathway. Taken together, our results reveal a novel carotenoid-derived regulatory metabolite with a specific biological function that affects root growth, manifesting the biological importance of diapocarotenoids.
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Affiliation(s)
- Kun-Peng Jia
- Biological and Environmental Sciences and Engineering Division, Center for Desert Agriculture, The BioActives Lab, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
- State Key Laboratory of Cotton Biology, Henan Joint International Laboratory for Crop Multi-Omics Research, School of Life Sciences, Henan University, Jinming Road, Kaifeng, 475004, China
| | - Jianing Mi
- Biological and Environmental Sciences and Engineering Division, Center for Desert Agriculture, The BioActives Lab, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Abdugaffor Ablazov
- Biological and Environmental Sciences and Engineering Division, Center for Desert Agriculture, The BioActives Lab, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Shawkat Ali
- Biological and Environmental Sciences and Engineering Division, Center for Desert Agriculture, The BioActives Lab, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Yu Yang
- Biological and Environmental Sciences and Engineering Division, Center for Desert Agriculture, The BioActives Lab, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Aparna Balakrishna
- Biological and Environmental Sciences and Engineering Division, Center for Desert Agriculture, The BioActives Lab, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Lamis Berqdar
- Biological and Environmental Sciences and Engineering Division, Center for Desert Agriculture, The BioActives Lab, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Qitong Feng
- Biological and Environmental Sciences and Engineering Division, Center for Desert Agriculture, The BioActives Lab, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Ikram Blilou
- Biological and Environmental Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Salim Al-Babili
- Biological and Environmental Sciences and Engineering Division, Center for Desert Agriculture, The BioActives Lab, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
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11
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Shao J, Wang J, Li Y, Elzo MA, Tang T, Lai T, Ma Y, Gan M, Wang L, Jia X, Lai S. Growth, behavioural, serum biochemical and morphological changes in female rabbits fed high-fat diet. J Anim Physiol Anim Nutr (Berl) 2020; 105:345-353. [PMID: 33038071 DOI: 10.1111/jpn.13459] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 07/23/2020] [Accepted: 09/03/2020] [Indexed: 12/26/2022]
Abstract
This study aimed to determine whether high-fat diet (HFD) could cause growth, behavioural, biochemical and morphological changes in young female rabbits. Thirty-six female rabbits were randomly divided into two groups fed with either a high-fat diet (HFD) or a standard normal diet (SND) for 5 weeks. Growth and behavioural changes were recorded during the 5-week feeding period. Tissue samples, including blood and adipose tissue, were obtained after slaughter. HFD rabbits weighed more by the end of the feeding period, had a higher percent body weight and adipose tissue weight change and had longer body and bust lengths than SND rabbits. HFD rabbits significantly reduced their feed intake and feeding frequency during the fourth and fifth weeks. HFD rabbits also showed lower frequency of drinking and resting and increased stereotypical behaviour. Besides, HFD rabbits showed significant physiological abnormalities. HFD rabbits had higher serum cholesterol (TC) and triglycerides (TG) levels than SND rabbits at the end of the feeding period, and higher free fatty acid (FFA) levels than rabbits in the SND group after the third week of feeding. Serum thyroxine (T4) increased significantly in week 2 and week 5 and triiodothyronine (T3) increased significantly in week four. However, there was no significant change in serum glucose (GLU) and insulin (INS) levels. Additionally, HFD reduced the area and diameter of perirenal and subcutaneous fat cells and increased their density. Our findings suggest that HFD rabbits had higher weight gains, accumulation of fat, and more behavioural changes than SND rabbits. Although high levels of fat in the diet had a low impact on hyperglycaemia, it could lead to hyperlipidemia and hyperthyroidism. Our results also suggest that sustained HFD may cause the proliferation of adipocytes in young female rabbits.
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Affiliation(s)
- Jiahao Shao
- College of Animal Science and Technology, Sichuan Agricultural University - Chengdu Campus, Chengdu, China
| | - Jie Wang
- College of Animal Science and Technology, Sichuan Agricultural University - Chengdu Campus, Chengdu, China
| | - Yanhong Li
- College of Animal Science and Technology, Sichuan Agricultural University - Chengdu Campus, Chengdu, China
| | - Mauricio A Elzo
- Department of Animal Science, University of Florida, Gainesville, FL, USA
| | - Tao Tang
- College of Animal Science and Technology, Sichuan Agricultural University - Chengdu Campus, Chengdu, China
| | - Tianfu Lai
- College of Animal Science and Technology, Sichuan Agricultural University - Chengdu Campus, Chengdu, China
| | - Yuan Ma
- College of Animal Science and Technology, Sichuan Agricultural University - Chengdu Campus, Chengdu, China
| | - Mingchuan Gan
- College of Animal Science and Technology, Sichuan Agricultural University - Chengdu Campus, Chengdu, China
| | - Li Wang
- College of Animal Science and Technology, Sichuan Agricultural University - Chengdu Campus, Chengdu, China
| | - Xianbo Jia
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University - Chengdu Campus, Chengdu, China
| | - Songjia Lai
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University - Chengdu Campus, Chengdu, China
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12
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Lutein protected the retina from light induced retinal damage by inhibiting increasing oxidative stress and inflammation. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104107] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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13
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Wang JY, Lin PY, Al-Babili S. On the biosynthesis and evolution of apocarotenoid plant growth regulators. Semin Cell Dev Biol 2020; 109:3-11. [PMID: 32732130 DOI: 10.1016/j.semcdb.2020.07.007] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/13/2020] [Accepted: 07/13/2020] [Indexed: 11/28/2022]
Abstract
Carotenoids are an important source of metabolites with regulatory function, which include the plant hormones abscisic acid (ABA) and strigolactones (SLs), and several recently identified growth regulators and signaling molecules. These carotenoid-derivatives originate from oxidative breakdown of double bonds in the carotenoid polyene, a common metabolic process that gives rise to diverse carbonyl cleavage-products known as apocarotenoids. Apocarotenoids exert biologically important functions in all taxa. In plants, they are a major regulator of plant growth, development and response to biotic and abiotic environmental stimuli, and mediate plant's communication with surrounding organisms. In this article, we provide a general overview on the biology of plant apocarotenoids, focusing on ABA, SLs, and recently identified apocarotenoid growth regulators. Following an introduction on carotenoids, we describe plant apocarotenoid biosynthesis, signal transduction, and evolution and summarize their biological functions. Moreover, we discuss the evolution of these intriguing metabolites, which has not been adequately addressed in the literature.
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Affiliation(s)
- Jian You Wang
- The BioActives Lab, Center for Desert Agriculture (CDA), Biological and Environment Science and Engineering (BESE), King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Pei-Yu Lin
- The BioActives Lab, Center for Desert Agriculture (CDA), Biological and Environment Science and Engineering (BESE), King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Salim Al-Babili
- The BioActives Lab, Center for Desert Agriculture (CDA), Biological and Environment Science and Engineering (BESE), King Abdullah University of Science and Technology, Thuwal, Saudi Arabia.
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14
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Weber P, Flores RE, Kiefer MF, Schupp M. Retinol Saturase: More than the Name Suggests. Trends Pharmacol Sci 2020; 41:418-427. [PMID: 32345479 DOI: 10.1016/j.tips.2020.03.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/25/2020] [Accepted: 03/30/2020] [Indexed: 12/11/2022]
Abstract
Retinol saturase (RetSat) is an oxidoreductase that is expressed in metabolically active tissues and is highly regulated in conditions related to insulin resistance and type 2 diabetes. Thus far, RetSat has been implicated in adipocyte differentiation, hepatic glucose and lipid metabolism, macrophage function, vision, and the generation of reactive oxygen species (ROS). Although initially described to transform retinol to 13,14-dihydroretinol, a function it was named after, alternative enzymatic reactions may underlie some of these biological effects. We summarize recent findings and identify major obstacles standing in the way of its pharmacological exploitation, how we might overcome these, and discuss the therapeutic potential of modulating the activity of RetSat in alleviating human pathologies.
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Affiliation(s)
- Pamela Weber
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Pharmacology, Center for Cardiovascular Research, 10115 Berlin, Germany
| | - Roberto E Flores
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Pharmacology, Center for Cardiovascular Research, 10115 Berlin, Germany
| | - Marie F Kiefer
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Pharmacology, Center for Cardiovascular Research, 10115 Berlin, Germany
| | - Michael Schupp
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Institute of Pharmacology, Center for Cardiovascular Research, 10115 Berlin, Germany.
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15
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Zheng X, Giuliano G, Al-Babili S. Carotenoid biofortification in crop plants: citius, altius, fortius. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1865:158664. [PMID: 32068105 DOI: 10.1016/j.bbalip.2020.158664] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 02/06/2020] [Accepted: 02/07/2020] [Indexed: 12/24/2022]
Abstract
Carotenoids are indispensable for human health, required as precursors of vitamin A and efficient antioxidants. However, these plant pigments that play a vital role in photosynthesis are represented at insufficient levels in edible parts of several crops, which creates a need for increasing their content or optimizing their composition through biofortification. In particular, vitamin A deficiency, a severe health problem affecting the lives of millions in developing countries, has triggered the development of a series of high-provitamin A crops, including Golden Rice as the best-known example. Further carotenoid-biofortified crops have been generated by using genetic engineering approaches or through classical breeding. In this review, we depict carotenoid metabolism in plants and provide an update on the development of carotenoid-biofortified plants and their potential to meet needs and expectations. Furthermore, we discuss the possibility of using natural variation for carotenoid biofortification and the potential of gene editing tools. This article is part of a Special Issue entitled Carotenoids recent advances in cell and molecular biology edited by Johannes von Lintig and Loredana Quadro.
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Affiliation(s)
- Xiongjie Zheng
- King Abdullah University of Science and Technology (KAUST), Division of Biological and Environmental Science and Engineering, Center for Desert Agriculture, the BioActives Lab, Thuwal 23955-6900, Saudi Arabia
| | - Giovanni Giuliano
- Italian National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA), Casaccia Research Center, Via Anguillarese 301, Roma 00123, Italy
| | - Salim Al-Babili
- King Abdullah University of Science and Technology (KAUST), Division of Biological and Environmental Science and Engineering, Center for Desert Agriculture, the BioActives Lab, Thuwal 23955-6900, Saudi Arabia.
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16
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Mi J, Jia KP, Balakrishna A, Al-Babili S. A Method for Extraction and LC-MS-Based Identification of Carotenoid-Derived Dialdehydes in Plants. Methods Mol Biol 2020; 2083:177-188. [PMID: 31745921 DOI: 10.1007/978-1-4939-9952-1_13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We developed a chemical derivatization based ultra-high performance liquid chromatography-hybrid quadrupole-Orbitrap mass spectrometer (UHPLC-Q-Orbitrap MS) analytical method to identify low-abundant and instable carotenoid-derived dialdehydes (DIALs, diapocarotenoids) from plants. Application of this method enhances the MS response signal of DIALs, enabling the detection of diapocarotenoids, which is crucial for understanding the function of these compounds and for elucidating the carotenoid oxidative metabolic pathway in plants.
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Affiliation(s)
- Jianing Mi
- The BioActives Lab, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Kun-Peng Jia
- The BioActives Lab, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Aparna Balakrishna
- The BioActives Lab, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Salim Al-Babili
- The BioActives Lab, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia.
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17
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Carotenoid metabolism at the intestinal barrier. Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1865:158580. [PMID: 31794861 DOI: 10.1016/j.bbalip.2019.158580] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/20/2019] [Accepted: 11/21/2019] [Indexed: 12/17/2022]
Abstract
Carotenoids exert a rich variety of physiological functions in mammals and are beneficial for human health. These lipids are acquired from the diet and metabolized to apocarotenoids, including retinoids (vitamin A and its metabolites). The small intestine is a major site for their absorption and bioconversion. From here, carotenoids and their metabolites are distributed within the body in triacylglycerol-rich lipoproteins to support retinoid signaling in peripheral tissues and photoreceptor function in the eyes. In recent years, much progress has been made in identifying carotenoid metabolizing enzymes, transporters, and binding proteins. A diet-responsive regulatory network controls the activity of these components and adapts carotenoid absorption and bioconversion to the bodily requirements of these lipids. Genetic variability in the genes encoding these components alters carotenoid homeostasis and is associated with pathologies. We here summarize the advanced state of knowledge about intestinal carotenoid metabolism and its impact on carotenoid and retinoid homeostasis of other organ systems, including the eyes, liver, and immune system. The implication of the findings for science-based intake recommendations for these essential dietary lipids is discussed. This article is part of a Special Issue entitled Carotenoids recent advances in cell and molecular biology edited by Johannes von Lintig and Loredana Quadro.
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18
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Jia KP, Dickinson AJ, Mi J, Cui G, Xiao TT, Kharbatia NM, Guo X, Sugiono E, Aranda M, Blilou I, Rueping M, Benfey PN, Al-Babili S. Anchorene is a carotenoid-derived regulatory metabolite required for anchor root formation in Arabidopsis. SCIENCE ADVANCES 2019; 5:eaaw6787. [PMID: 31807696 PMCID: PMC6881154 DOI: 10.1126/sciadv.aaw6787] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 09/25/2019] [Indexed: 05/09/2023]
Abstract
Anchor roots (ANRs) arise at the root-shoot junction and are the least investigated type of Arabidopsis root. Here, we show that ANRs originate from pericycle cells in an auxin-dependent manner and a carotenogenic signal to emerge. By screening known and assumed carotenoid derivatives, we identified anchorene, a presumed carotenoid-derived dialdehyde (diapocarotenoid), as the specific signal needed for ANR formation. We demonstrate that anchorene is an Arabidopsis metabolite and that its exogenous application rescues the ANR phenotype in carotenoid-deficient plants and promotes the growth of normal seedlings. Nitrogen deficiency resulted in enhanced anchorene content and an increased number of ANRs, suggesting a role of this nutrient in determining anchorene content and ANR formation. Transcriptome analysis and treatment of auxin reporter lines indicate that anchorene triggers ANR formation by modulating auxin homeostasis. Together, our work reveals a growth regulator with potential application to agriculture and a new carotenoid-derived signaling molecule.
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Affiliation(s)
- Kun-Peng Jia
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division, The BioActives Lab, Thuwal 23955-6900, Saudi Arabia
| | - Alexandra J. Dickinson
- Department of Biology and Howard Hughes Medical Institute, Duke University, Durham, NC 27708, USA
| | - Jianing Mi
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division, The BioActives Lab, Thuwal 23955-6900, Saudi Arabia
| | - Guoxin Cui
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Science and Engineering Division, Red Sea Research Center, Thuwal 23955-6900, Saudi Arabia
| | - Ting Ting Xiao
- King Abdullah University of Science and Technology, Division of Biological and Environmental Sciences and Engineering, Thuwal 23955-6900, Saudi Arabia
| | - Najeh M. Kharbatia
- King Abdullah University of Science and Technology (KAUST), Core Lab, Thuwal 23955-6900, Saudi Arabia
| | - Xiujie Guo
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division, The BioActives Lab, Thuwal 23955-6900, Saudi Arabia
| | - Erli Sugiono
- RWTH Aachen University, Institute of Organic Chemistry, 52074 Aachen, Germany
| | - Manuel Aranda
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Science and Engineering Division, Red Sea Research Center, Thuwal 23955-6900, Saudi Arabia
| | - Ikram Blilou
- King Abdullah University of Science and Technology, Division of Biological and Environmental Sciences and Engineering, Thuwal 23955-6900, Saudi Arabia
| | - Magnus Rueping
- King Abdullah University of Science and Technology (KAUST), Physical Science and Engineering Division, KAUST Catalysis Center, Thuwal 23955-6900, Saudi Arabia
| | - Philip N. Benfey
- Department of Biology and Howard Hughes Medical Institute, Duke University, Durham, NC 27708, USA
| | - Salim Al-Babili
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division, The BioActives Lab, Thuwal 23955-6900, Saudi Arabia
- Corresponding author.
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19
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Strychalski J, Gugołek A, Brym P, Antoszkiewicz Z. Effect of the β-carotene oxygenase 2 genotype on the content of carotenoids, retinol and α-tocopherol in the liver, fat and milk of rabbit does, reproduction parameters and kitten growth. J Anim Physiol Anim Nutr (Berl) 2019; 103:1585-1593. [PMID: 31141232 DOI: 10.1111/jpn.13130] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 03/05/2019] [Accepted: 05/06/2019] [Indexed: 11/30/2022]
Abstract
Mutations in the β-carotene oxygenase 2 (BCO2) gene can impair the function of the enzyme that breaks down carotenoids. As a result, gradual accumulation of unoxidized carotenoids in animal tissues gives them a yellow colour. The aim of the study was to determine the content of carotenoids, retinol and α-tocopherol in the liver, fat and milk of rabbit does with three different genotypes determined by AAT-deletion mutation at codon 248 of the BCO2 gene and to find out whether differences in the concentrations of the above compounds in the tissues and milk of the does affect reproduction parameters and the rearing rate of kittens. The experimental materials comprised 36 does, 12 of each genotype of the BCO2 gene, with their litters. Females with their litters were placed in individual cages, on deep litter. Between days 7 and 13 of lactation, samples of milk were collected from the does. The kittens stayed with their mothers until 35 days of age. After weaning, the does were sacrificed. Tissue samples of liver and perirenal fat were collected for chemical analyses. Additionally, based on samples taken from one female, RNA expression levels were determined from the mammary gland and liver, adipose tissue and skin. It was found that homozygous does with deletion at codon 248 of the BCO2 gene were characterized by considerably higher concentrations of xanthophylls and beta-carotene in the liver, adipose tissue and milk than does with the remaining genotypes. However, the differences in the content of the above compounds in milk had no influence on litter weight or the number and rearing rate of kittens. Additionally, RNA expression of the BCO2 gene was found in the mammary tissue of lactating doe and its level was similar to those noted in the liver and adipose tissue.
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Affiliation(s)
- Janusz Strychalski
- Department of Fur-bearing Animal Breeding and Game Management, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland
| | - Andrzej Gugołek
- Department of Fur-bearing Animal Breeding and Game Management, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland
| | - Paweł Brym
- Department of Animal Genetics, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland
| | - Zofia Antoszkiewicz
- Department of Animal Nutrition and Feed Science, Faculty of Animal Bioengineering, University of Warmia and Mazury, Olsztyn, Poland
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20
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Khadka N, Farquhar ER, Hill HE, Shi W, von Lintig J, Kiser PD. Evidence for distinct rate-limiting steps in the cleavage of alkenes by carotenoid cleavage dioxygenases. J Biol Chem 2019; 294:10596-10606. [PMID: 31138651 DOI: 10.1074/jbc.ra119.007535] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 05/24/2019] [Indexed: 11/06/2022] Open
Abstract
Carotenoid cleavage dioxygenases (CCDs) use a nonheme Fe(II) cofactor to split alkene bonds of carotenoid and stilbenoid substrates. The iron centers of CCDs are typically five-coordinate in their resting states, with solvent occupying an exchangeable site. The involvement of this iron-bound solvent in CCD catalysis has not been experimentally addressed, but computational studies suggest two possible roles. 1) Solvent dissociation provides a coordination site for O2, or 2) solvent remains bound to iron but changes its equilibrium position to allow O2 binding and potentially acts as a proton source. To test these predictions, we investigated isotope effects (H2O versus D2O) on two stilbenoid-cleaving CCDs, Novosphingobium aromaticivorans oxygenase 2 (NOV2) and Neurospora crassa carotenoid oxygenase 1 (CAO1), using piceatannol as a substrate. NOV2 exhibited an inverse isotope effect (k H/k D ∼ 0.6) in an air-saturated buffer, suggesting that solvent dissociates from iron during the catalytic cycle. By contrast, CAO1 displayed a normal isotope effect (k H/k D ∼ 1.7), suggesting proton transfer in the rate-limiting step. X-ray absorption spectroscopy on NOV2 and CAO1 indicated that the protonation states of the iron ligands are unchanged within pH 6.5-8.5 and that the Fe(II)-aquo bond is minimally altered by substrate binding. We pinpointed the origin of the differential kinetic behaviors of NOV2 and CAO1 to a single amino acid difference near the solvent-binding site of iron, and X-ray crystallography revealed that the substitution alters binding of diffusible ligands to the iron center. We conclude that solvent-iron dissociation and proton transfer are both associated with the CCD catalytic mechanism.
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Affiliation(s)
- Nimesh Khadka
- From the Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106
| | - Erik R Farquhar
- National Synchrotron Light Source-II, Brookhaven National Laboratory, Upton, New York 11973.,Center for Proteomics and Bioinformatics, Center for Synchrotron Biosciences, School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106-4988, and
| | - Hannah E Hill
- From the Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106
| | - Wuxian Shi
- National Synchrotron Light Source-II, Brookhaven National Laboratory, Upton, New York 11973.,Center for Proteomics and Bioinformatics, Center for Synchrotron Biosciences, School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106-4988, and
| | - Johannes von Lintig
- From the Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106
| | - Philip D Kiser
- From the Department of Pharmacology, School of Medicine, Case Western Reserve University, Cleveland, Ohio 44106, .,Research Service, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, Ohio 44106
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21
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Wang JY, Haider I, Jamil M, Fiorilli V, Saito Y, Mi J, Baz L, Kountche BA, Jia KP, Guo X, Balakrishna A, Ntui VO, Reinke B, Volpe V, Gojobori T, Blilou I, Lanfranco L, Bonfante P, Al-Babili S. The apocarotenoid metabolite zaxinone regulates growth and strigolactone biosynthesis in rice. Nat Commun 2019; 10:810. [PMID: 30778050 PMCID: PMC6379432 DOI: 10.1038/s41467-019-08461-1] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 01/14/2019] [Indexed: 11/09/2022] Open
Abstract
Carotenoid cleavage dioxygenases (CCDs) form hormones and signaling molecules. Here we show that a member of an overlooked plant CCD subfamily from rice, that we name Zaxinone Synthase (ZAS), can produce zaxinone, a novel apocarotenoid metabolite in vitro. Loss-of-function mutants (zas) contain less zaxinone, exhibit retarded growth and showed elevated levels of strigolactones (SLs), a hormone that determines plant architecture, mediates mycorrhization and facilitates infestation by root parasitic weeds, such as Striga spp. Application of zaxinone can rescue zas phenotypes, decrease SL content and release and promote root growth in wild-type seedlings. In conclusion, we show that zaxinone is a key regulator of rice development and biotic interactions and has potential for increasing crop growth and combating Striga, a severe threat to global food security.
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Affiliation(s)
- Jian You Wang
- Division of Biological and Environmental Science and Engineering, the BioActives Lab, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Imran Haider
- Division of Biological and Environmental Science and Engineering, the BioActives Lab, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Muhammad Jamil
- Division of Biological and Environmental Science and Engineering, the BioActives Lab, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Valentina Fiorilli
- Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, Torino, 10125, Italy
| | - Yoshimoto Saito
- Computational Bioscience Research Center, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Jianing Mi
- Division of Biological and Environmental Science and Engineering, the BioActives Lab, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Lina Baz
- Division of Biological and Environmental Science and Engineering, the BioActives Lab, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Boubacar A Kountche
- Division of Biological and Environmental Science and Engineering, the BioActives Lab, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Kun-Peng Jia
- Division of Biological and Environmental Science and Engineering, the BioActives Lab, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Xiujie Guo
- Division of Biological and Environmental Science and Engineering, the BioActives Lab, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Aparna Balakrishna
- Division of Biological and Environmental Science and Engineering, the BioActives Lab, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Valentine O Ntui
- Division of Biological and Environmental Science and Engineering, the BioActives Lab, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Beate Reinke
- Cell Biology, Institute for Biology II, Albert-Ludwigs University of Freiburg, D-79104, Freiburg, Germany
| | - Veronica Volpe
- Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, Torino, 10125, Italy
| | - Takashi Gojobori
- Computational Bioscience Research Center, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia.,Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Ikram Blilou
- Division of Biological and Environmental Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Luisa Lanfranco
- Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, Torino, 10125, Italy
| | - Paola Bonfante
- Department of Life Sciences and Systems Biology, University of Torino, Viale Mattioli 25, Torino, 10125, Italy
| | - Salim Al-Babili
- Division of Biological and Environmental Science and Engineering, the BioActives Lab, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia.
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22
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Srinivasan K, Buys EM. Insights into the role of bacteria in vitamin A biosynthesis: Future research opportunities. Crit Rev Food Sci Nutr 2019; 59:3211-3226. [PMID: 30638045 DOI: 10.1080/10408398.2018.1546670] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Significant efforts have been made to address the hidden hunger challenges due to iron, zinc, iodine, and vitamin A since the beginning of the 21st century. Prioritizing the vitamin A deficiency (VAD) disorders, many countries are looking for viable alternative strategies such as biofortification. One of the leading causes of VAD is the poor bioconversion of β-carotene into retinoids. This review is focused on the opportunities of bacterial biosynthesis of retinoids, in particular, through the gut microbiota. The proposed hypothesis starts with the premise that an animal can able to store and timely convert carotenoids into retinoids in the liver and intestinal tissues. This theory is experimental with many scientific insights. The syntrophic metabolism, potential crosstalk of bile acids, lipocalins and lipopolysaccharides of gut microbiota are reported to contribute significantly to the retinoid biosynthesis. The gut bacteria respond to these kinds of factors by genetic restructuring driven mainly by events like horizontal gene transfer. A phylogenetic analysis of β-carotene 15, 15'-mono (di) oxygenase enzymes among a selected group of prokaryotes and eukaryotes was carried out to validate the hypotheses. Shedding light on the probiotic strategies through non-genetically modified organism such as gut bacteria capable of synthesizing vitamin A would address the VAD disorders.
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Affiliation(s)
- K Srinivasan
- Department of Consumer and Food Sciences, University of Pretoria, Hatfield Campus, Pretoria, South Africa
| | - Elna M Buys
- Department of Consumer and Food Sciences, University of Pretoria, Hatfield Campus, Pretoria, South Africa
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23
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Fiorilli V, Wang JY, Bonfante P, Lanfranco L, Al-Babili S. Apocarotenoids: Old and New Mediators of the Arbuscular Mycorrhizal Symbiosis. FRONTIERS IN PLANT SCIENCE 2019; 10:1186. [PMID: 31611899 PMCID: PMC6776609 DOI: 10.3389/fpls.2019.01186] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 08/29/2019] [Indexed: 05/12/2023]
Abstract
Plants utilize hormones and other small molecules to trigger and coordinate their growth and developmental processes, adapt and respond to environmental cues, and communicate with surrounding organisms. Some of these molecules originate from carotenoids that act as universal precursors of bioactive metabolites arising through oxidation of the carotenoid backbone. This metabolic conversion produces a large set of compounds known as apocarotenoids, which includes the plant hormones abscisic acid (ABA) and strigolactones (SLs) and different signaling molecules. An increasing body of evidence suggests a crucial role of previously identified and recently discovered carotenoid-derived metabolites in the communication with arbuscular mycorrhizal (AM) fungi and the establishment of the corresponding symbiosis, which is one of the most relevant plant-fungus mutualistic interactions in nature. In this review, we provide an update on the function of apocarotenoid hormones and regulatory metabolites in AM symbiosis, highlighting their effect on both partners.
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Affiliation(s)
- Valentina Fiorilli
- Department of Life Sciences and Systems Biology, University of Torino, Torino, Italy
| | - Jian You Wang
- The BioActives Lab, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Paola Bonfante
- Department of Life Sciences and Systems Biology, University of Torino, Torino, Italy
| | - Luisa Lanfranco
- The BioActives Lab, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
- *Correspondence: Luisa Lanfranco, ; Salim Al-Babili,
| | - Salim Al-Babili
- The BioActives Lab, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
- *Correspondence: Luisa Lanfranco, ; Salim Al-Babili,
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24
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Abuauf H, Haider I, Jia KP, Ablazov A, Mi J, Blilou I, Al-Babili S. The Arabidopsis DWARF27 gene encodes an all-trans-/9-cis-β-carotene isomerase and is induced by auxin, abscisic acid and phosphate deficiency. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2018; 277:33-42. [PMID: 30466598 DOI: 10.1016/j.plantsci.2018.06.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 06/28/2018] [Accepted: 06/29/2018] [Indexed: 05/18/2023]
Abstract
Strigolactones (SLs) are carotenoid-derived plant hormones that influence various aspects of plant growth and development in response to environmental conditions, especially nutrients deficiency. SLs are synthesized via a strict stereo-specific core pathway that leads to the intermediate carlactone, requiring the iron-containing polypeptide DWARF27 (D27) and the carotenoid cleavage dioxygenases 7 (CCD7) and 8 (CCD8). It has been shown that the rice OsD27 is a β-carotene isomerase catalyzing the interconversion of all-trans- into 9-cis-β -carotene. However, data about the enzymatic activity of D27 from other species are missing. Here, we investigated the activity and substrate specificity of the Arabidopsis AtD27 by testing a broad range of carotenoid substrates. Both in vivo and in vitro assays show that AtD27 catalyzes the reverse isomerization of all-trans-/9-cis-β-carotene. AtD27 did not isomerize 13-cis- or 15-cis-β-carotene, indicating high specificity for the C9-C10 double bond. The isomerization reaction was inhibited in the presence of silver acetate, pointing to the involvement of an iron-sulfur cluster. We further investigated the expression of AtD27, using Arabidopsis transgenic lines expressing β-glucuronidase (GUS) under the control of AtD27 native promoter. AtD27 is ubiquitously expressed throughout the plant with the highest expression in immature flowers. In lateral roots, AtD27 expression was induced by treatment with auxin and ABA, while the application of SL analogs did not show an effect. Lower ABA levels in atd27 mutant indicated an interference with the ABA pathway. Quantitative real-time RT-PCR showed that transcript levels of AtD27 and other SL biosynthetic genes in roots are induced upon phosphate starvation. Taken together, our study on AtD27 confirms the postulated enzymatic function of this enzyme, shows its strict substrate- and regio-specificity and indicates an important role in response to multiple plant hormones and phosphate deficiency.
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Affiliation(s)
- Haneen Abuauf
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division, The Bioactives Lab, Thuwal, 23955-6900, Saudi Arabia
| | - Imran Haider
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division, The Bioactives Lab, Thuwal, 23955-6900, Saudi Arabia
| | - Kun-Peng Jia
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division, The Bioactives Lab, Thuwal, 23955-6900, Saudi Arabia
| | - Abdugaffor Ablazov
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division, The Bioactives Lab, Thuwal, 23955-6900, Saudi Arabia
| | - Jianing Mi
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division, The Bioactives Lab, Thuwal, 23955-6900, Saudi Arabia
| | - Ikram Blilou
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division, Thuwal, 23955-6900, Saudi Arabia
| | - Salim Al-Babili
- King Abdullah University of Science and Technology (KAUST), Biological and Environmental Sciences and Engineering Division, The Bioactives Lab, Thuwal, 23955-6900, Saudi Arabia.
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25
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Liu J, Gu X, Zou R, Nan W, Yang S, Wang HL, Chen XT. Phytohormone Abscisic Acid Improves Spatial Memory and Synaptogenesis Involving NDR1/2 Kinase in Rats. Front Pharmacol 2018; 9:1141. [PMID: 30356880 PMCID: PMC6190901 DOI: 10.3389/fphar.2018.01141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 09/19/2018] [Indexed: 11/13/2022] Open
Abstract
The abscisic acid (ABA) is a phytohormone involved in plant growth, development and environmental stress response. Recent study showed ABA can also be detected in other organisms, including mammals. And it has been reported that ABA can improve learning and memory in rats. In this study, we attempted to investigate the effects of ABA on the alternation of dendritic spine morphology of pyramidal neurons in developmental rats, which may underlie the learning and memory function. Behavior tests showed that ABA significantly improved spatial memory performance. Meanwhile, Golgi-Cox staining assay showed that ABA significantly increased the spine density and the percentage of mushroom-like spines in pyramidal neurons of hippocampus, indicating that ABA increased dendritic spine formation and maturation, which may contribute to the improvement of spatial memory. Furthermore, ABA administration increased the protein expression of NDR1/2 kinase, as well as mRNA levels of NDR2 and its substrate Rabin8. In addition, NDR1/2 shRNA prohibited the ABA-induced increases in the expression of NDR1/2 and spine density. Together, our study indicated that ABA could improve learning and memory in rats and the effect are possibly through the regulation of synaptogenesis, which is mediated via NDR1/2 kinase pathway.
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Affiliation(s)
- Juanjuan Liu
- School of Food Science and Engineering, Hefei University of Technology, Hefei, China
| | - Xiaozhen Gu
- School of Food Science and Engineering, Hefei University of Technology, Hefei, China
| | - Rongxin Zou
- School of Food Science and Engineering, Hefei University of Technology, Hefei, China
| | - Wenping Nan
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Shaohua Yang
- School of Pharmacy, Anhui Medical University, Hefei, China
| | - Hui-Li Wang
- School of Food Science and Engineering, Hefei University of Technology, Hefei, China
| | - Xiang-Tao Chen
- School of Pharmacy, Anhui Medical University, Hefei, China
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26
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Kelly ME, Ramkumar S, Sun W, Colon Ortiz C, Kiser PD, Golczak M, von Lintig J. The Biochemical Basis of Vitamin A Production from the Asymmetric Carotenoid β-Cryptoxanthin. ACS Chem Biol 2018; 13:2121-2129. [PMID: 29883100 PMCID: PMC6158786 DOI: 10.1021/acschembio.8b00290] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Vitamin A serves essential functions in mammalian biology as a signaling molecule and chromophore. This lipid can be synthesized from more than 50 putative dietary provitamin A precursor molecules which contain at least one unsubstituted β-ionone ring. We here scrutinized the enzymatic properties and substrate specificities of the two structurally related carotenoid cleavage dioxygenases (CCDs) which catalyze this synthesis. Recombinant BCO1 split substrates across the C15,C15' double bond adjacent to a canonical β-ionone ring site to vitamin A aldehyde. Substitution of the ring with a hydroxyl group prevented this conversion. The removal of methyl groups from the polyene carbon backbone of the substrate did not impede enzyme activity. Homology modeling and site-directed mutagenesis identified amino acid residues at the entrance of the substrate tunnel, which determined BCO1's specificity for the canonical β-ionone ring site. In contrast, BCO2 split substrates across the C9,C10 double bond adjacent to assorted ionone ring sites. Kinetic analysis revealed a higher catalytic efficiency of BCO2 with substrates bearing 3-hydroxy-β-ionone rings. In the mouse intestine, the asymmetric carotenoid β-cryptoxanthin with one canonical and one 3-hydroxy-β-ionone ring site was meticulously converted to vitamin A. The tailoring of this asymmetric substrate occurred by a stepwise processing of the carotenoid substrate by both CCDs and involved a β-apo-10'-carotenal intermediate. Thus, opposite selectivity for ionone ring sites of the two mammalian CCDs complement each other in the metabolic challenge of vitamin A production from a chemically diverse set of precursor molecules.
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Affiliation(s)
- Mary E. Kelly
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106
| | - Srinivasagan Ramkumar
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106
| | - Weizhong Sun
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106
| | - Crystal Colon Ortiz
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106
| | - Philip D. Kiser
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106
| | - Marcin Golczak
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106
| | - Johannes von Lintig
- Department of Pharmacology, Case Western Reserve University School of Medicine, Cleveland, OH 44106
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Loewen PC, Switala J, Wells JP, Huang F, Zara AT, Allingham JS, Loewen MC. Structure and function of a lignostilbene-α,β-dioxygenase orthologue from Pseudomonas brassicacearum. BMC BIOCHEMISTRY 2018; 19:8. [PMID: 30115012 PMCID: PMC6097328 DOI: 10.1186/s12858-018-0098-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 08/02/2018] [Indexed: 01/28/2023]
Abstract
BACKGROUND Stilbene cleaving oxygenases (SCOs), also known as lignostilbene-α,β-dioxygenases (LSDs) mediate the oxidative cleavage of the olefinic double bonds of lignin-derived intermediate phenolic stilbenes, yielding small modified benzaldehyde compounds. SCOs represent one branch of the larger carotenoid cleavage oxygenases family. Here, we describe the structural and functional characterization of an SCO-like enzyme from the soil-born, bio-control agent Pseudomonas brassicacearum. METHODS In vitro and in vivo assays relying on visual inspection, spectrophotometric quantification, as well as liquid-chormatographic and mass spectrometric characterization were applied for functional evaluation of the enzyme. X-ray crystallographic analyses and in silico modeling were applied for structural investigations. RESULTS In vitro assays demonstrated preferential cleavage of resveratrol, while in vivo analyses detected putative cleavage of the straight chain carotenoid, lycopene. A high-resolution structure containing the seven-bladed β-propeller fold and conserved 4-His-Fe unit at the catalytic site, was obtained. Comparative structural alignments, as well as in silico modelling and docking, highlight potential molecular factors contributing to both the primary in vitro activity against resveratrol, as well as the putative subsidiary activities against carotenoids in vivo, for future validation. CONCLUSIONS The findings reported here provide validation of the SCO structure, and highlight enigmatic points with respect to the potential effect of the enzyme's molecular environment on substrate specificities for future investigation.
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Affiliation(s)
- Peter C Loewen
- Department of Microbiology, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada
| | - Jacek Switala
- Department of Microbiology, University of Manitoba, Winnipeg, MB, R3T 2N2, Canada
| | - James P Wells
- National Research Council of Canada, 100 Sussex Drive, Ottawa, ON, K1A 0R6, Canada
| | - Fang Huang
- National Research Council of Canada, 100 Sussex Drive, Ottawa, ON, K1A 0R6, Canada
| | - Anthony T Zara
- Department of BioMedical and Molecular Sciences, Queen's University, Kingston, ON, K7L 3N6, Canada
| | - John S Allingham
- Department of BioMedical and Molecular Sciences, Queen's University, Kingston, ON, K7L 3N6, Canada
| | - Michele C Loewen
- National Research Council of Canada, 100 Sussex Drive, Ottawa, ON, K1A 0R6, Canada.
- Department of BioMedical and Molecular Sciences, Queen's University, Kingston, ON, K7L 3N6, Canada.
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28
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Jia KP, Baz L, Al-Babili S. From carotenoids to strigolactones. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:2189-2204. [PMID: 29253188 DOI: 10.1093/jxb/erx476] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 12/07/2017] [Indexed: 05/18/2023]
Abstract
Strigolactones are phytohormones that regulate various plant developmental and adaptation processes. When released into soil, strigolactones act as chemical signals, attracting symbiotic arbuscular mycorrhizal fungi and inducing seed germination in root-parasitic weeds. Strigolactones are carotenoid derivatives, characterized by the presence of a butenolide ring that is connected by an enol ether bridge to a less conserved second moiety. Carotenoids are isopenoid pigments that differ in structure, number of conjugated double bonds, and stereoconfiguration. Genetic analysis and enzymatic studies have demonstrated that strigolactones originate from all-trans-β-carotene in a pathway that involves the all-trans-/9-cis-β-carotene isomerase DWARF27 and carotenoid cleavage dioxygenase 7 and 8 (CCD7, 8). The CCD7-mediated, regiospecific and stereospecific double-bond cleavage of 9-cis-β-carotene leads to a 9-cis-configured intermediate that is converted by CCD8 via a combination of reactions into the central metabolite carlactone. By catalyzing repeated oxygenation reactions that can be coupled to ring closure, CYP711 enzymes convert carlactone into tricyclic-ring-containing canonical and non-canonical strigolactones. Modifying enzymes, which are mostly unknown, further increase the diversity of strigolactones. This review explores carotenogenesis, provides an update on strigolactone biosynthesis, with emphasis on the substrate specificity and reactions catalyzed by the different enzymes, and describes the regulation of the biosynthetic pathway.
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Affiliation(s)
- Kun-Peng Jia
- King Abdullah University of Science and Technology, Biological and Environmental Sciences and Engineering Division, The Bioactives Lab, Thuwal, Kingdom of Saudi Arabia
| | - Lina Baz
- King Abdullah University of Science and Technology, Biological and Environmental Sciences and Engineering Division, The Bioactives Lab, Thuwal, Kingdom of Saudi Arabia
| | - Salim Al-Babili
- King Abdullah University of Science and Technology, Biological and Environmental Sciences and Engineering Division, The Bioactives Lab, Thuwal, Kingdom of Saudi Arabia
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29
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Naderi R, Esmaeili-Mahani S, Abbasnejad M. Phosphatidylinositol-3-kinase and protein kinase C are involved in the pro-cognitive and anti-anxiety effects of phytohormone abscisic acid in rats. Biomed Pharmacother 2017; 96:112-119. [DOI: 10.1016/j.biopha.2017.09.089] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 09/17/2017] [Accepted: 09/18/2017] [Indexed: 11/26/2022] Open
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30
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Decker EL, Alder A, Hunn S, Ferguson J, Lehtonen MT, Scheler B, Kerres KL, Wiedemann G, Safavi-Rizi V, Nordzieke S, Balakrishna A, Baz L, Avalos J, Valkonen JPT, Reski R, Al-Babili S. Strigolactone biosynthesis is evolutionarily conserved, regulated by phosphate starvation and contributes to resistance against phytopathogenic fungi in a moss, Physcomitrella patens. THE NEW PHYTOLOGIST 2017; 216:455-468. [PMID: 28262967 DOI: 10.1111/nph.14506] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 01/31/2017] [Indexed: 05/18/2023]
Abstract
In seed plants, strigolactones (SLs) regulate architecture and induce mycorrhizal symbiosis in response to environmental cues. SLs are formed by combined activity of the carotenoid cleavage dioxygenases (CCDs) 7 and 8 from 9-cis-β-carotene, leading to carlactone that is converted by cytochromes P450 (clade 711; MAX1 in Arabidopsis) into various SLs. As Physcomitrella patens possesses CCD7 and CCD8 homologs but lacks MAX1, we investigated if PpCCD7 together with PpCCD8 form carlactone and how deletion of these enzymes influences growth and interactions with the environment. We investigated the enzymatic activity of PpCCD7 and PpCCD8 in vitro, identified the formed products by high performance liquid chromatography (HPLC) and LC-MS, and generated and analysed ΔCCD7 and ΔCCD8 mutants. We defined enzymatic activity of PpCCD7 as a stereospecific 9-cis-CCD and PpCCD8 as a carlactone synthase. ΔCCD7 and ΔCCD8 lines showed enhanced caulonema growth, which was revertible by adding the SL analogue GR24 or carlactone. Wild-type (WT) exudates induced seed germination in Orobanche ramosa. This activity was increased upon phosphate starvation and abolished in exudates of both mutants. Furthermore, both mutants showed increased susceptibility to phytopathogenic fungi. Our study reveals the deep evolutionary conservation of SL biosynthesis, SL function, and its regulation by biotic and abiotic cues.
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Affiliation(s)
- Eva L Decker
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Schaenzlestr. 1, Freiburg, 79104, Germany
| | - Adrian Alder
- Cell Biology, Faculty of Biology, University of Freiburg, Schaenzlestr. 1, Freiburg, 79104, Germany
| | - Stefan Hunn
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Schaenzlestr. 1, Freiburg, 79104, Germany
| | - Jenny Ferguson
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Schaenzlestr. 1, Freiburg, 79104, Germany
| | - Mikko T Lehtonen
- Department of Agricultural Sciences, University of Helsinki, Latokartanonkaari 7, Helsinki, FIN-00014, Finland
| | - Bjoern Scheler
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Schaenzlestr. 1, Freiburg, 79104, Germany
| | - Klaus L Kerres
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Schaenzlestr. 1, Freiburg, 79104, Germany
| | - Gertrud Wiedemann
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Schaenzlestr. 1, Freiburg, 79104, Germany
| | - Vajiheh Safavi-Rizi
- Cell Biology, Faculty of Biology, University of Freiburg, Schaenzlestr. 1, Freiburg, 79104, Germany
| | - Steffen Nordzieke
- Departamento de Genética, Facultad de Biología, Universidad de Sevilla, Seville, E-41080, Spain
| | - Aparna Balakrishna
- BESE Division, Plant Science Program, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Lina Baz
- BESE Division, Plant Science Program, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Javier Avalos
- Departamento de Genética, Facultad de Biología, Universidad de Sevilla, Seville, E-41080, Spain
| | - Jari P T Valkonen
- Department of Agricultural Sciences, University of Helsinki, Latokartanonkaari 7, Helsinki, FIN-00014, Finland
| | - Ralf Reski
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Schaenzlestr. 1, Freiburg, 79104, Germany
- FRIAS - Freiburg Institute for Advanced Studies, University of Freiburg, Freiburg, 79104, Germany
- BIOSS - Centre for Biological Signalling Studies, University of Freiburg, Freiburg, 79104, Germany
| | - Salim Al-Babili
- Cell Biology, Faculty of Biology, University of Freiburg, Schaenzlestr. 1, Freiburg, 79104, Germany
- BESE Division, Plant Science Program, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
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Retinol saturase modulates lipid metabolism and the production of reactive oxygen species. Arch Biochem Biophys 2017; 633:93-102. [PMID: 28927883 DOI: 10.1016/j.abb.2017.09.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 09/06/2017] [Accepted: 09/13/2017] [Indexed: 11/20/2022]
Abstract
Retinol saturase (RetSat) catalyzes the saturation of double bonds of all-trans-retinol leading to the production of dihydroretinoid metabolites. Beside its role in retinoid metabolism, there is evidence that RetSat modulates the cellular response to oxidative stress and plays critical roles in adipogenesis and the accumulation of lipids. Here, we explore the relationship between RetSat, lipid metabolism and oxidative stress using in vitro and in vivo models with altered expression of RetSat. Our results reveal that RetSat is a potent modulator of the cellular response to oxidative stress and the generation of reactive oxygen species (ROS). The levels of reactive aldehydes products of lipid peroxidation, as measured based on thiobarbituric acid reactivity, are increased in RetSat overexpressing cells and, conversely, reduced in cells and tissues with reduced or absent expression of RetSat compared to controls. Despite increased weight gain, neutral lipid accumulation and alterations in hepatic lipid composition, RetSat-/- mice exhibit normal responses to insulin. In conclusion, our findings further expand upon the role of RetSat in oxidative stress and lipid metabolism and could provide insight in the significance of alterations of RetSat expression as observed in metabolic disorders.
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32
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Yusuf M, Shabbir M, Mohammad F. Natural Colorants: Historical, Processing and Sustainable Prospects. NATURAL PRODUCTS AND BIOPROSPECTING 2017; 7:123-145. [PMID: 28093670 PMCID: PMC5315675 DOI: 10.1007/s13659-017-0119-9] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 01/02/2017] [Indexed: 05/06/2023]
Abstract
With the public's mature demand in recent times pressurized the textile industry for use of natural colorants, without any harmful effects on environment and aquatic ecosystem, and with more developed functionalities simultaneously. Advanced developments for the natural bio-resources and their sustainable use for multifunctional clothing are gaining pace now. Present review highlights historical overview of natural colorants, classification and predominantly processing of colorants from sources, application on textiles surfaces with the functionalities provided by them. Chemistry of natural colorants on textiles also discussed with relevance to adsorption isotherms and kinetic models for dyeing of textiles.
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Affiliation(s)
- Mohd Yusuf
- Department of Chemistry, Y.M.D. College, Maharshi Dayanand University, Nuh, Haryana 122107 India
| | - Mohd Shabbir
- Department of Chemistry, Jamia Millia Islamia (A Central University), New Delhi, 110025 India
| | - Faqeer Mohammad
- Department of Chemistry, Jamia Millia Islamia (A Central University), New Delhi, 110025 India
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33
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Gong X, Marisiddaiah R, Zaripheh S, Wiener D, Rubin LP. Mitochondrial β-Carotene 9',10' Oxygenase Modulates Prostate Cancer Growth via NF-κB Inhibition: A Lycopene-Independent Function. Mol Cancer Res 2016; 14:966-975. [PMID: 27406826 DOI: 10.1158/1541-7786.mcr-16-0075] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 06/27/2016] [Indexed: 11/16/2022]
Abstract
Despite numerous inquiries into protective roles of lycopene in prostate cancer prevention or therapy, little is known about mechanisms by which lycopene or its metabolites inhibit prostate cancer. The enzyme β-carotene 9',10'-oxygenase (BCO2), which catalyzes asymmetric cleavage of several carotenoids, is the principal regulator of lycopene metabolism, but the range of BCO2 biological functions is incompletely understood. This study investigated expression and functional roles of BCO2 in human prostate cancer. Expression of the bco2 gene is dramatically decreased in prostate cancer tissue and in a range of prostate cancer cell lines as compared with nonneoplastic prostate tissue and normal prostatic epithelial cells, respectively. Inhibition of DNA methyltransferase activity restored bco2 expression in prostate cancer cell lines tested. Treatment with lycopene or its metabolite, apo-10-lycopenal, also increased bco2 expression and reduced cell proliferation in androgen-sensitive cell lines, but lycopene neither altered bco2 expression nor cell growth in androgen-resistant cells. Notably, restoring bco2 expression in prostate cancer cells inhibited cell proliferation and colony formation, irrespective of lycopene exposure. Exogenous expression of either wild-type BCO2 or a mutant (enzymatically inactive) BCO2 in prostate cancer cells reduced NF-κB activity and decreased NF-κB nuclear translocation and DNA binding. Together, these results indicate epigenetic loss of BCO2 expression is associated with prostate cancer progression. Moreover, these findings describe previously unanticipated functions of BCO2 that are independent of its enzymatic role in lycopene metabolism. IMPLICATIONS This study identifies BCO2 as a tumor suppressor in prostate cancer. BCO2-mediated inhibition of NF-κB signaling implies BCO2 status is important in prostate cancer progression. Mol Cancer Res; 14(10); 966-75. ©2016 AACR.
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Affiliation(s)
- Xiaoming Gong
- Department of Pediatrics, Texas Tech University Health Sciences Center, Paul L. Foster School of Medicine, El Paso, Texas
| | | | - Susan Zaripheh
- Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio
| | | | - Lewis P Rubin
- Department of Pediatrics, Texas Tech University Health Sciences Center, Paul L. Foster School of Medicine, El Paso, Texas. Department of Biomedical Sciences, Paul L. Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, Texas.
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34
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Toomey MB, Lind O, Frederiksen R, Curley RW, Riedl KM, Wilby D, Schwartz SJ, Witt CC, Harrison EH, Roberts NW, Vorobyev M, McGraw KJ, Cornwall MC, Kelber A, Corbo JC. Complementary shifts in photoreceptor spectral tuning unlock the full adaptive potential of ultraviolet vision in birds. eLife 2016; 5:e15675. [PMID: 27402384 PMCID: PMC4947394 DOI: 10.7554/elife.15675] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 06/13/2016] [Indexed: 01/01/2023] Open
Abstract
Color vision in birds is mediated by four types of cone photoreceptors whose maximal sensitivities (λmax) are evenly spaced across the light spectrum. In the course of avian evolution, the λmax of the most shortwave-sensitive cone, SWS1, has switched between violet (λmax > 400 nm) and ultraviolet (λmax < 380 nm) multiple times. This shift of the SWS1 opsin is accompanied by a corresponding short-wavelength shift in the spectrally adjacent SWS2 cone. Here, we show that SWS2 cone spectral tuning is mediated by modulating the ratio of two apocarotenoids, galloxanthin and 11’,12’-dihydrogalloxanthin, which act as intracellular spectral filters in this cell type. We propose an enzymatic pathway that mediates the differential production of these apocarotenoids in the avian retina, and we use color vision modeling to demonstrate how correlated evolution of spectral tuning is necessary to achieve even sampling of the light spectrum and thereby maintain near-optimal color discrimination.
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Affiliation(s)
- Matthew B Toomey
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, United States
| | - Olle Lind
- Department of Philosophy, Lund University, Lund, Sweden
| | - Rikard Frederiksen
- Department of Physiology and Biophysics, Boston University, Boston, United States
| | - Robert W Curley
- College of Pharmacy, The Ohio State University, Columbus, United States
| | - Ken M Riedl
- Department of Food Science and Technology, The Ohio State University, Columbus, United States
- Nutrient and Phytochemical Shared Resource of the OSU-Comprehensive Cancer Center, Columbus, United States
| | - David Wilby
- School of Biological Sciences, University of Bristol, Bristol, United Kingdom
| | - Steven J Schwartz
- Department of Food Science and Technology, The Ohio State University, Columbus, United States
| | - Christopher C Witt
- Department of Biology, University of New Mexico, Albuquerque, United States
- Museum of Southwestern Biology, University of New Mexico, Albuquerque, United States
| | - Earl H Harrison
- Department of Human Nutrition, The Ohio State University, Columbus, United States
| | - Nicholas W Roberts
- School of Biological Sciences, University of Bristol, Bristol, United Kingdom
| | - Misha Vorobyev
- Department of Optometry and Vision Science, University of Auckland, Auckland, New Zealand
| | - Kevin J McGraw
- School of Life Sciences, Arizona State University, Tempe, United States
| | - M Carter Cornwall
- Department of Physiology and Biophysics, Boston University, Boston, United States
| | - Almut Kelber
- Department of Biology, Lund University, Lund, Sweden
| | - Joseph C Corbo
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, United States
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35
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Wu L, Guo X, Wang W, Medeiros DM, Clarke SL, Lucas EA, Smith BJ, Lin D. Molecular aspects of β, β-carotene-9', 10'-oxygenase 2 in carotenoid metabolism and diseases. Exp Biol Med (Maywood) 2016; 241:1879-1887. [PMID: 27390265 DOI: 10.1177/1535370216657900] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 06/09/2016] [Indexed: 12/18/2022] Open
Abstract
Carotenoids, the carotenes and xanthophylls, are essential components in human nutrition. β, β-carotene-9', 10'-oxygenase 2 (BCO2), also named as β, β-carotene-9', 10'-dioxygenase 2 (BCDO2) catalyzes the asymmetrical cleavage of carotenoids, whereas β, β-carotene-15, 15'-monooxygenase (BCMO1) conducts the symmetrical cleavage of pro-vitamin A carotenoids into retinoid. Unlike BCMO1, BCO2 has a broader substrate specificity and has been considered an alternative way to produce vitamin A. In contrast to BCMO1, a cytoplasmic protein, BCO2 is located in the inner mitochondrial membrane. The difference in cellular compartmentalization may reflect the different substrate specificity and physiological functions with respect to BCMO1 and BCO2. The BCO2 gene mutations are proven to be associated with yellow color of skin and fat tissue and milk in livestock. Mutation in intron 2 of BCO2 gene is also supposed to be related to the expression of IL-18, a pro-inflammatory cytokine associated with obesity, cardiovascular diseases, and type 2 diabetes. Further, BCO2 is associated with the development of mitochondrial oxidative stress, macular degeneration, anemia, and hepatic steatosis. This review of the literature will mostly address recent updates regarding the role of BCO2 in carotenoid metabolism, and discuss the potential impacts of BCO2 protein and the mutations in mammalian diseases.
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Affiliation(s)
- Lei Wu
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Xin Guo
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Weiqun Wang
- Department of Food Nutrition Dietetics & Health, Kansas State University, Manhattan, KS 66506, USA
| | - Denis M Medeiros
- College of Graduate Studies, University of Missouri-Kansas City, Kansas City, MO 64112, USA
| | - Stephen L Clarke
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Edralin A Lucas
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Brenda J Smith
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USA
| | - Dingbo Lin
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK 74078, USA
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36
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Bruno M, Al-Babili S. On the substrate specificity of the rice strigolactone biosynthesis enzyme DWARF27. PLANTA 2016; 243:1429-40. [PMID: 26945857 DOI: 10.1007/s00425-016-2487-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2015] [Accepted: 02/10/2016] [Indexed: 05/18/2023]
Abstract
The β-carotene isomerase OsDWARF27 is stereo- and double bond-specific. It converts bicyclic carotenoids with at least one unsubstituted β-ionone ring. OsDWARF27 may contribute to the formation of α-carotene-based strigolactone-like compounds. Strigolactones (SLs) are synthesized from all-trans-β-carotene via a pathway involving the β-carotene isomerase DWARF27, the carotenoid cleavage dioxygenases 7 and 8 (CCD7, CCD8), and cytochrome P450 enzymes from the 711 clade (MAX1 in Arabidopsis). The rice enzyme DWARF27 was shown to catalyze the reversible isomerization of all-trans- into 9-cis-β-carotene in vitro. β-carotene occurs in different cis-isomeric forms, and plants accumulate other carotenoids, which may be substrates of DWARF27. Here, we investigated the stereo and substrate specificity of the rice enzyme DWARF27 in carotenoid-accumulating E. coli strains and in in vitro assays performed with heterologously expressed and purified enzyme. Our results suggest that OsDWARF27 is strictly double bond-specific, solely targeting the C9-C10 double bond. OsDWARF27 did not introduce a 9-cis-double bond in 13-cis- or 15-cis-β-carotene. Substrates isomerized by OsDWARF27 are bicyclic carotenoids, including β-, α-carotene and β,β-cryptoxanthin, that contain at least one unsubstituted β-ionone ring. Accordingly, OsDWARF27 did not produce the abscisic acid precursors 9-cis-violaxanthin or -neoxanthin from the corresponding all-trans-isomers, excluding a direct role in the formation of this carotenoid derived hormone. The conversion of all-trans-α-carotene yielded two different isomers, including 9'-cis-α-carotene that might be the precursor of strigolactones with an ε-ionone ring, such as the recently identified heliolactone.
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Affiliation(s)
- Mark Bruno
- Faculty of Biology, Albert-Ludwigs University of Freiburg, Schaenzlestr. 1, 79104, Freiburg, Germany
| | - Salim Al-Babili
- BESE Division, King Abdullah University of Science and Technology (KAUST), 4700, 23955-6900, Thuwal, Kingdom of Saudi Arabia.
- Faculty of Biology, Albert-Ludwigs University of Freiburg, Schaenzlestr. 1, 79104, Freiburg, Germany.
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37
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Identifying a Carotenoid Cleavage Dioxygenase 4a Gene and Its Efficient Agrobacterium-Mediated Genetic Transformation in Bixa orellana L. Appl Biochem Biotechnol 2016; 179:697-714. [DOI: 10.1007/s12010-016-2025-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 02/18/2016] [Indexed: 01/14/2023]
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38
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Strychalski J, Gugołek A, Antoszkiewicz Z, Kowalska D, Konstantynowicz M. Biologically active compounds in selected tissues of white-fat and yellow-fat rabbits and their production performance parameters. Livest Sci 2016. [DOI: 10.1016/j.livsci.2015.11.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
A substantial proportion of the dazzling diversity of colors displayed by living organisms throughout the tree of life is determined by the presence of carotenoids, which most often provide distinctive yellow, orange and red hues. These metabolites play fundamental roles in nature that extend far beyond their importance as pigments. In photosynthetic lineages, carotenoids are essential to sustain life, since they have been exploited to maximize light harvesting and protect the photosynthetic machinery from photooxidative stress. Consequently, photosynthetic organisms have evolved several mechanisms that adjust the carotenoid metabolism to efficiently cope with constantly fluctuating light environments. This chapter will focus on the current knowledge concerning the regulation of the carotenoid biosynthetic pathway in leaves, which are the primary photosynthetic organs of most land plants.
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40
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Qi CC, Shu YM, Chen FH, Ding YQ, Zhou JN. Sensitivity during the forced swim test is a key factor in evaluating the antidepressant effects of abscisic acid in mice. Behav Brain Res 2015; 300:106-13. [PMID: 26698394 DOI: 10.1016/j.bbr.2015.12.009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 12/03/2015] [Accepted: 12/11/2015] [Indexed: 12/17/2022]
Abstract
Abscisic acid (ABA), a crucial phytohormone, is distributed in the brains of mammals and has been shown to have antidepressant effects in the chronic unpredictable mild stress test. The forced swim test (FST) is another animal model that can be used to assess antidepressant-like behavior in rodents. Here, we report that the antidepressant effects of ABA are associated with sensitivities to the FST in mice. Based on mean immobility in the 5-min forced swim pre-test, ICR mice were divided into short immobility mice (SIM) and long immobility mice (LIM) substrains. FST was carried out 8 days after drug administration. Learned helplessness, as shown by increased immobility, was only observed in SIM substrain and could be prevented by an 8-day ABA treatment. Our results show that ABA has antidepressant effects in SIM substrain and suggest that mice with learned helplessness might be more suitable for screening potential antidepressant drugs.
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Affiliation(s)
- Cong-Cong Qi
- Key Laboratory of Arrhythmias, Ministry of Education of China, East Hospital, and Department of Anatomy and Neurobiology, Tongji University School of Medicine, Shanghai 200120, China; CAS Key Laboratory of Brain Function and Diseases, School of Life Science, University of Science and Technology of China, Hefei 230027, Anhui, China
| | - Yu-Mian Shu
- CAS Key Laboratory of Brain Function and Diseases, School of Life Science, University of Science and Technology of China, Hefei 230027, Anhui, China
| | - Fang-Han Chen
- CAS Key Laboratory of Brain Function and Diseases, School of Life Science, University of Science and Technology of China, Hefei 230027, Anhui, China
| | - Yu-Qiang Ding
- Key Laboratory of Arrhythmias, Ministry of Education of China, East Hospital, and Department of Anatomy and Neurobiology, Tongji University School of Medicine, Shanghai 200120, China
| | - Jiang-Ning Zhou
- CAS Key Laboratory of Brain Function and Diseases, School of Life Science, University of Science and Technology of China, Hefei 230027, Anhui, China.
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Zhou N, Yao Y, Ye H, Zhu W, Chen L, Mao Y. Abscisic-acid-induced cellular apoptosis and differentiation in glioma via the retinoid acid signaling pathway. Int J Cancer 2015; 138:1947-58. [PMID: 26594836 DOI: 10.1002/ijc.29935] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 11/10/2015] [Indexed: 12/15/2022]
Abstract
Retinoid acid (RA) plays critical roles in regulating differentiation and apoptosis in a variety of cancer cells. Abscisic acid (ABA) and RA are direct derivatives of carotenoids and share structural similarities. Here we proposed that ABA may also play a role in cellular differentiation and apoptosis by sharing a similar signaling pathway with RA that may be involved in glioma pathogenesis. We reported for the first time that the ABA levels were twofold higher in low-grade gliomas compared with high-grade gliomas. In glioma tissues, there was a positive correlation between the ABA levels and the transcription of cellular retinoic acid-binding protein 2 (CRABP2) and a negative correlation between the ABA levels and transcription of fatty acid-binding protein 5 (FABP5). ABA treatment induced a significant increase in the expression of CRABP2 and a decrease in the expression of peroxisome proliferator-activated receptor (PPAR) in glioblastoma cells. Remarkably, both cellular apoptosis and differentiation were increased in the glioblastoma cells after ABA treatment. ABA-induced cellular apoptosis and differentiation were significantly reduced by selectively silencing RAR-α, while RAR-α overexpression exaggerated the ABA-induced effects. These results suggest that ABA may play a role in the pathogenesis of glioma by promoting cellular apoptosis and differentiation through the RA signaling pathway.
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Affiliation(s)
- Nan Zhou
- Department of Neurosurgery, Huashan Hospital, Fudan University, Middle Urumqi Road 12, Shanghai, 200040, China
| | - Yu Yao
- Department of Neurosurgery, Huashan Hospital, Fudan University, Middle Urumqi Road 12, Shanghai, 200040, China
| | - Hongxing Ye
- Department of Neurosurgery, Huashan Hospital, Fudan University, Middle Urumqi Road 12, Shanghai, 200040, China
| | - Wei Zhu
- Department of Neurosurgery, Huashan Hospital, Fudan University, Middle Urumqi Road 12, Shanghai, 200040, China
| | - Liang Chen
- Department of Neurosurgery, Huashan Hospital, Fudan University, Middle Urumqi Road 12, Shanghai, 200040, China
| | - Ying Mao
- Department of Neurosurgery, Huashan Hospital, Fudan University, Middle Urumqi Road 12, Shanghai, 200040, China
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Díaz-Sánchez V, Limón MC, Schaub P, Al-Babili S, Avalos J. A RALDH-like enzyme involved in Fusarium verticillioides development. Fungal Genet Biol 2015; 86:20-32. [PMID: 26688466 DOI: 10.1016/j.fgb.2015.12.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 12/04/2015] [Accepted: 12/09/2015] [Indexed: 01/30/2023]
Abstract
Retinaldehyde dehydrogenases (RALDHs) convert retinal to retinoic acid, an important chordate morphogen. Retinal also occurs in some fungi, such as Fusarium and Ustilago spp., evidenced by the presence of rhodopsins and β-carotene cleaving, retinal-forming dioxygenases. Based on the assumption that retinoic acid may also be formed in fungi, we searched the Fusarium protein databases for RALDHs homologs, focusing on Fusarium verticillioides. Using crude lysates of Escherichia coli cells expressing the corresponding cDNAs, we checked the capability of best matches to convert retinal into retinoic acid in vitro. Thereby, we identified an aldehyde dehydrogenase, termed CarY, as a retinoic acid-forming enzyme, an activity that was also exerted by purified CarY. Targeted mutation of the carY gene in F. verticillioides resulted in alterations of mycelia development and conidia morphology in agar cultures, and reduced capacity to produce perithecia as a female in sexual crosses. Complementation of the mutant with a wild-type carY allele demonstrated that these alterations are caused by the lackof CarY. However, retinoic acid could not be detected by LC-MS analysis either in the wild type or the complemented carY strain in vivo, making elusive the connection between CarY enzymatic activity and retinoic acid formation in the fungus.
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Affiliation(s)
- Violeta Díaz-Sánchez
- Department of Genetics, Faculty of Biology, University of Seville, E-41012 Seville, Spain
| | - M Carmen Limón
- Department of Genetics, Faculty of Biology, University of Seville, E-41012 Seville, Spain
| | - Patrick Schaub
- Faculty of Biology, Albert-Ludwigs University of Freiburg, Schaenzlestr. 1, D-79104 Freiburg, Germany
| | - Salim Al-Babili
- Center for Desert Agriculture, BESE Division, King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia
| | - Javier Avalos
- Department of Genetics, Faculty of Biology, University of Seville, E-41012 Seville, Spain.
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Priya R, Siva R. Analysis of phylogenetic and functional diverge in plant nine-cis epoxycarotenoid dioxygenase gene family. JOURNAL OF PLANT RESEARCH 2015; 128:519-34. [PMID: 25929830 DOI: 10.1007/s10265-015-0726-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 12/15/2014] [Indexed: 05/27/2023]
Abstract
During different environmental stress conditions, plant growth is regulated by the hormone abscisic acid (an apocarotenoid). In the biosynthesis of abscisic acid, the oxidative cleavage of cis-epoxycarotenoid catalyzed by 9-cis-epoxycarotenoid dioxygenase (NCED) is the crucial step. The NCED genes were isolated in numerous plant species and those genes were phylogenetically investigated to understand the evolution of NCED genes in various plant lineages comprising lycophyte, gymnosperm, dicot and monocot. A total of 93 genes were obtained from 48 plant species to statistically estimate their sequence conservation and functional divergence. Selaginella moellendorffii appeared to be evolutionarily distinct from those of the angiosperms, insisting the substantial influence of natural selection pressure on NCED genes. Further, using exon-intron structure analysis, the gene structures of NCED were found to be conserved across some species. In addition, the substitution rate ratio of non-synonymous (Ka) versus synonymous (Ks) mutations using the Bayesian inference approach, depicted the critical amino acid residues for functional divergence. A significant functional divergence was found between some subgroups through the co-efficient of type-I functional divergence. Our results suggest that the evolution of NCED genes occurred by duplication, diversification and exon intron loss events. The site-specific profile and functional diverge analysis revealed NCED genes might facilitate the tissue-specific functional divergence in NCED sub-families, that could combat different environmental stress conditions aiding plant survival.
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Affiliation(s)
- R Priya
- School of Bio Sciences and Technology, VIT University, Vellore, 632014, Tamil Nadu, India
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Strychalski J, Brym P, Czarnik U, Gugołek A. A novel AAT-deletion mutation in the coding sequence of the BCO2 gene in yellow-fat rabbits. J Appl Genet 2015; 56:535-537. [DOI: 10.1007/s13353-015-0290-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Revised: 04/04/2015] [Accepted: 05/12/2015] [Indexed: 10/23/2022]
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Al-Babili S, Bouwmeester HJ. Strigolactones, a novel carotenoid-derived plant hormone. ANNUAL REVIEW OF PLANT BIOLOGY 2015; 66:161-86. [PMID: 25621512 DOI: 10.1146/annurev-arplant-043014-114759] [Citation(s) in RCA: 438] [Impact Index Per Article: 48.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Strigolactones (SLs) are carotenoid-derived plant hormones and signaling molecules. When released into the soil, SLs indicate the presence of a host to symbiotic fungi and root parasitic plants. In planta, they regulate several developmental processes that adapt plant architecture to nutrient availability. Highly branched/tillered mutants in Arabidopsis, pea, and rice have enabled the identification of four SL biosynthetic enzymes: a cis/trans-carotene isomerase, two carotenoid cleavage dioxygenases, and a cytochrome P450 (MAX1). In vitro and in vivo enzyme assays and analysis of mutants have shown that the pathway involves a combination of new reactions leading to carlactone, which is converted by a rice MAX1 homolog into an SL parent molecule with a tricyclic lactone moiety. In this review, we focus on SL biosynthesis, describe the hormonal and environmental factors that determine this process, and discuss SL transport and downstream signaling as well as the role of SLs in regulating plant development.
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Affiliation(s)
- Salim Al-Babili
- Center for Desert Agriculture, Biological and Environmental Sciences and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia;
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Preliminary evidence that abscisic acid improves spatial memory in rats. Physiol Behav 2014; 139:231-9. [PMID: 25449403 DOI: 10.1016/j.physbeh.2014.11.053] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 11/13/2014] [Accepted: 11/14/2014] [Indexed: 01/22/2023]
Abstract
Abscisic acid (ABA) is a crucial phytohormone that exists in a wide range of animals, including humans, and has multiple bioactivities. As direct derivatives of carotenoids, ABA and retinoic acid (RA) share similar molecular structures, and RA has been reported to improve spatial memory in rodents. To explore the potential effects of ABA on spatial learning and memory in rodents, 20mg/kg ABA was administered to young rats for 6weeks, and its effects on behaviour performance were evaluated through a series of behavioural tests. ABA pharmacokinetic analysis revealed that the exogenous ABA was distributed widely in the rat brain, characterised by rapid absorption and slow elimination. The behavioural tests showed that ABA increased both the duration spent in the target quadrant and the frequency it was entered in the probe test of the Morris water maze (MWM) and decreased the latency to locate the target quadrant. Moreover, ABA decreased the latency to enter the novel arm in the Y-maze test, accompanied by increases in the total entries and distance travelled in the three arms. However, there were no significant differences between the ABA-treated and control rats in the open field test and elevated plus-maze test. These results preliminarily indicate that ABA improves spatial memory in MWM and exploratory activity in Y-maze in young rats.
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Priya R, Siva R. Phylogenetic analysis and evolutionary studies of plant carotenoid cleavage dioxygenase gene. Gene 2014; 548:223-33. [PMID: 25034662 DOI: 10.1016/j.gene.2014.07.037] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 07/09/2014] [Accepted: 07/12/2014] [Indexed: 01/28/2023]
Abstract
The oxidative breakdown of carotenoid evidences the formation of apocarotenoids through carotenoid cleavage dioxygenases (CCDs). Numerous CCDs and apocarotenoids have been identified and characterized in plants. Using available sequence data, a study was performed to investigate the phylogenetic relationship among CCD genes and to statistically estimate the sequence conservation and functional divergence. In total, 77 genes were identified from 39 species belonging to 21 families. Our result of phylogenetic analysis indicated the existence of well-conserved subfamilies. Moreover, comparative genomic analysis showed that the gene structures of the CCDs were highly conserved across some different lineage species. Through functional divergence analysis, a substantial divergence was found between CCD subfamilies. In addition, examination of the site-specific profile revealed the critical amino acid residues accounting for functional divergence. This study mainly focused on the evolution of CCD genes and their functional divergence which may deliver an initial step for further experimental verifications.
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Affiliation(s)
- R Priya
- School of Bio Sciences and Technology, VIT University, Vellore 632014, Tamil Nadu, India
| | - Ramamoorthy Siva
- School of Bio Sciences and Technology, VIT University, Vellore 632014, Tamil Nadu, India.
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Palczewski G, Amengual J, Hoppel CL, von Lintig J. Evidence for compartmentalization of mammalian carotenoid metabolism. FASEB J 2014; 28:4457-69. [PMID: 25002123 DOI: 10.1096/fj.14-252411] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The critical role of retinoids (vitamin A and its derivatives) for vision, reproduction, and survival has been well established. Vitamin A is produced from dietary carotenoids such as β-carotene by centric cleavage via the enzyme BCO1. The biochemical and molecular identification of a second structurally related β-carotene metabolizing enzyme, BCO2, has led to a prolonged debate about its relevance in vitamin A biology. While BCO1 cleaves provitamin A carotenoids, BCO2 is more promiscuous and also metabolizes nonprovitamin A carotenoids such as zeaxanthin into long-chain apo-carotenoids. Herein we demonstrate, in cell lines, that human BCO2 is associated with the inner mitochondrial membrane. Different human BCO2 isoforms possess cleavable N-terminal leader sequences critical for mitochondrial import. Subfractionation of murine hepatic mitochondria confirmed the localization of BCO2 to the inner mitochondrial membrane. Studies in BCO2-knockout mice revealed that zeaxanthin accumulates in the inner mitochondrial membrane; in contrast, β-carotene is retained predominantly in the cytoplasm. Thus, we provide evidence for a compartmentalization of carotenoid metabolism that prevents competition between BCO1 and BCO2 for the provitamin and the production of noncanonical β-carotene metabolites.
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Affiliation(s)
| | | | - Charles L Hoppel
- Department of Pharmacology, and Department of Medicine, School of Medicine, Case Western Reserve University, Cleveland, Ohio, USA
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Affiliation(s)
| | - Salim Al-Babili
- BESE Division, King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Eleanore T. Wurtzel
- The Graduate School and University Center, The City University of New York, New York, New York, USA
- Department of Biological Sciences, Lehman College, The City University of New York, Bronx, New York, USA
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Affiliation(s)
| | | | - Krzysztof Palczewski
- Department of Pharmacology, School of Medicine, Case
Western Reserve University, 2109 Adelbert Road, Cleveland, Ohio 44106-4965,
United States
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