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Yadav P, Mohapatra S, Jaiswal PO, Dokka N, Tyagi S, Sreevathsa R, Shasany AK. Characterization of a novel cytosolic sesquiterpene synthase MpTPS4 from Mentha ×piperita as a bioresource for the enrichment of invaluable viridiflorol in mentha essential oil. Int J Biol Macromol 2024; 277:134214. [PMID: 39069055 DOI: 10.1016/j.ijbiomac.2024.134214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 07/24/2024] [Accepted: 07/25/2024] [Indexed: 07/30/2024]
Abstract
Our research addresses the challenge of low concentrations of viridiflorol, a unique and highly valuable sesquiterpene found in various Mentha species. We employed biotechnological strategies to enhance viridiflorol production, which could significantly boost export revenue. Mentha piperita L. sesquiterpene synthase (MpTPS4) was the focus of our study because it is a key enzyme in the biosynthesis of viridiflorol. Through biochemical characterization, we confirmed that MpTPS4 exclusively synthesizes viridiflorol. By overexpressing MpTPS4 in M. ×piperita L. using a glandular trichome-specific promoter, we achieved a notable increase (9-25 %) in viridiflorol content. Additionally, we explored the practical application of viridiflorol as a deterrent against the herbivore Helicoverpa armigera. The RNAi-mediated knockdown of MpTPS4 resulted in a significant reduction in viridiflorol levels in the essential oil. More importantly, these results show how relevant MpTPS4 is for making viridiflorol and how biotechnology could be used to increase biosynthesis. Our research provides valuable insights into enhancing the production of this commercially important sesquiterpene, offering promising opportunities for the mentha industry.
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Affiliation(s)
- Pallavi Yadav
- Plant Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow 226015, UP, India
| | - Soumyajit Mohapatra
- Plant Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow 226015, UP, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Priyanka O Jaiswal
- Plant Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow 226015, UP, India
| | - Narasimham Dokka
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi 110012, India
| | - Shaily Tyagi
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi 110012, India
| | - Rohini Sreevathsa
- ICAR-National Institute for Plant Biotechnology, Pusa Campus, New Delhi 110012, India.
| | - Ajit Kumar Shasany
- Plant Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, P.O. CIMAP, Lucknow 226015, UP, India; CSIR-National Botanical Research Institute, Lucknow 226001, UP, India.
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Yin X, Yang H, Ding K, Luo Y, Deng W, Liao J, Pan Y, Jiang B, Yong X, Jia Y. PfERF106, a novel key transcription factor regulating the biosynthesis of floral terpenoids in Primula forbesii Franch. BMC PLANT BIOLOGY 2024; 24:851. [PMID: 39256664 PMCID: PMC11385529 DOI: 10.1186/s12870-024-05567-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2024] [Accepted: 09/02/2024] [Indexed: 09/12/2024]
Abstract
BACKGROUND Flowers can be a source of essential oils used in the manufacture of substances with high economic value. The ethylene response factor (ERF) gene family plays a key role in regulating secondary metabolite biosynthesis in plants. However, until now, little has been known about the involvement of ERF transcription factors (TFs) in floral terpenoid biosynthesis. RESULTS In this study, an aromatic plant, Primula forbesii Franch., was used as research material to explore the key regulatory effects of PfERF106 on the biosynthesis of terpenoids. PfERF106, which encodes an IXb group ERF transcription factor, exhibited a consistent expression trend in the flowers of P. forbesii and was transcriptionally induced by exogenous ethylene. Transient silencing of PfERF106 in P. forbesii significantly decreased the relative contents of key floral terpenes, including (z)-β-ocimene, sabinene, β-pinene, γ-terpinene, linalool, eremophilene, α-ionone, and α-terpineol. In contrast, constitutive overexpression of PfERF106 in transgenic tobacco significantly increased the relative contents of key floral terpenes, including cis-3-hexen-1-ol, linalool, caryophyllene, cembrene, and sclareol. RNA sequencing of petals of PfERF106-silenced plants and empty-vector control plants revealed 52,711 expressed unigenes and 9,060 differentially expressed genes (DEGs). KEGG annotation analysis revealed that the DEGs were enriched for involvement in secondary metabolic biosynthetic pathways, including monoterpene and diterpene synthesis. Notably, 10 downregulated DEGs were determined to be the downstream target genes of PfERF106 affecting the biosynthesis of terpenoids in P. forbesii. CONCLUSION This study characterized the key positive regulatory effects of PfERF106 on the biosynthesis of terpenoids, indicating high-quality genetic resources for aroma improvement in P. forbesii. Thus, this study advances the artificial and precise directional regulation of metabolic engineering of aromatic substances.
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Affiliation(s)
- Xiancai Yin
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Hongchen Yang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Keying Ding
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yuanzhi Luo
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Wanqing Deng
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Jianwei Liao
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yuanzhi Pan
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Beibei Jiang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xue Yong
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yin Jia
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu, 611130, China.
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Silva IP, Costa MGC, Costa-Pinto MFF, Silva MAA, Coelho Filho MA, Fancelli M. Volatile compounds in citrus in adaptation to water deficit and to herbivory by Diaphorina citri: How the secondary metabolism of the plant is modulated under concurrent stresses. A review. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2024; 346:112157. [PMID: 38871029 DOI: 10.1016/j.plantsci.2024.112157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 06/09/2024] [Accepted: 06/11/2024] [Indexed: 06/15/2024]
Abstract
Citrus plants are grown in diverse regions of the world, from subtropical to semi-arid and humid tropical areas. Through mechanisms essential for their survival, they adapt to the environmental conditions to which they are subjected. Although there is vast literature on adaptation of citrus plants to individual stresses, plant responses to interaction among different types of stresses have not been clearly examined. Abiotic or biotic stresses, or a combination of these stresses, result in reorganization of plant energy resources for defense, whether it be for resistance, tolerance, or prevention of stress. Plants generally respond to these stress factors through production of secondary metabolites, such as volatile compounds, derived from different biosynthesis and degradation pathways, which are released through distinct routes. Volatile compounds vary among plant species, meeting the specific needs of the plant. Simultaneous exposure to the stress factors of water deficit and herbivory leads to responses such as qualitative and quantitative changes in the emission of secondary metabolites, and compounds may accumulate within the leaves or predispose the plant to more quickly respond to the stress brought about by the herbivore. The genetic makeup of citrus plants can contribute to a better response to stress factors; however, studies on the emission of volatile compounds in different citrus genotypes under simultaneous stresses are limited. This review examines the effects of abiotic stress due to water deficit and biotic stress due to herbivory by Diaphorina citri in citrus plants and examines their connection with volatile compounds. A summary is made of advances in knowledge regarding the performance of volatile compounds in plant defense against both stress factors, as well as the interaction between them and possible findings in citrus plants. In addition, throughout this review, we focus on how genetic variation of the citrus species is correlated with production of volatile compounds to improve stress tolerance.
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Affiliation(s)
- Indiara Pereira Silva
- Departamento de Biologia, Centro de Genética e Biologia Molecular, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
| | - Márcio Gilberto Cardoso Costa
- Departamento de Biologia, Centro de Genética e Biologia Molecular, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
| | | | - Monique Ayala Araújo Silva
- Departamento de Biologia, Centro de Genética e Biologia Molecular, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, Brazil
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Li W, Chen L, Zhao W, Li Y, Chen Y, Wen T, Liu Z, Huang C, Zhang L, Zhao L. Mutation of YFT3, an isomerase in the isoprenoid biosynthetic pathway, impairs its catalytic activity and carotenoid accumulation in tomato fruit. HORTICULTURE RESEARCH 2024; 11:uhae202. [PMID: 39308791 PMCID: PMC11415240 DOI: 10.1093/hr/uhae202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Accepted: 07/11/2024] [Indexed: 09/25/2024]
Abstract
Tomato fruit colors are directly associated with their appearance quality and nutritional value. However, tomato fruit color formation is an intricate biological process that remains elusive. In this work we characterized a tomato yellow fruited tomato 3 (yft3, e9292, Solanum lycopersicum) mutant with yellow fruits. By the map-based cloning approach, we identified a transversion mutation (A2117C) in the YFT3 gene encoding a putative isopentenyl diphosphate isomerase (SlIDI1) enzyme, which may function in the isoprenoid biosynthetic pathway by catalyzing conversion between isopentenyl pyrophosphate (IPP) and dimethylallyl pyrophosphate (DMAPP). The mutated YFT3 (A2117C) (designated YFT3 allele) and the YFT3 genes did not show expression difference at protein level, and their encoded YFT3 allelic (S126R) and YFT3 proteins were both localized in plastids. However, the transcript levels of eight genes (DXR, DXS, HDR, PSY1, CRTISO, CYCB, CYP97A, and NCED) associated with carotenoid synthesis were upregulated in fruits of both yft3 and YFT3 knockout (YFT3-KO) lines at 35 and 47 days post-anthesis compared with the red-fruit tomato cultivar (M82). In vitro and in vivo biochemical analyses indicated that YFT3 (S126R) possessed much lower enzymatic activities than the YFT3 protein, indicating that the S126R mutation can impair YFT3 activity. Molecular docking analysis showed that the YFT3 allele has higher ability to recruit isopentenyl pyrophosphate (IPP), but abolishes attachment of the Mg2+ cofactor to IPP, suggesting that Ser126 is a critical residue for YTF3 biochemical and physiological functions. As a result, the yft3 mutant tomato line has low carotenoid accumulation and abnormal chromoplast development, which results in yellow ripe fruits. This study provides new insights into molecular mechanisms of tomato fruit color formation and development.
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Affiliation(s)
- Wenzhen Li
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- Joint Tomato Research Institute, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Lulu Chen
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- Jiangsu Key Laboratory for Bioresources of Saline Soils, Jiangsu Synthetic Innovation Center for Coastal Bio-agriculture, School of Wetland, Yancheng Teachers University, 2 South Xiwang Avenue, Yancheng 224002, China
| | - Weihua Zhao
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- Joint Tomato Research Institute, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yuhang Li
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- Joint Tomato Research Institute, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Ying Chen
- Youlaigu Science and Technology Innovation Center, 588 West Chenfeng, Yushan town, Agriculture Service Center, Kunshan 215300, China
| | - Tengjian Wen
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- Joint Tomato Research Institute, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zhengjun Liu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, 2708 South Huaxi Avenue, Guiyang 550025, China
| | - Chao Huang
- Zhejiang Provincial Key TCM Laboratory for Chinese Resource Innovation and Transformation, College of Pharmaceutical Science, Zhejiang Chinese Medical University, 548 Binwen Road, Hangzhou 310053, China
| | - Lida Zhang
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- Joint Tomato Research Institute, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Lingxia Zhao
- Department of Plant Science, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- Joint Tomato Research Institute, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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Carmona L, Alquézar B, Peña L. Biochemical Characterization of New Sweet Orange Mutants Rich in Lycopene and β-Carotene Antioxidants. Antioxidants (Basel) 2024; 13:994. [PMID: 39199239 PMCID: PMC11351333 DOI: 10.3390/antiox13080994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2024] [Revised: 07/19/2024] [Accepted: 07/25/2024] [Indexed: 09/01/2024] Open
Abstract
Carotenoid-rich foods such as citrus fruits have a wide range of functions in human health. They primarily exert antioxidant effects, but individual carotenoids may also act through other health-promoting mechanisms such as β-carotene as pro-vitamin A. Here, we show that red-fleshed sweet oranges grown in tropical climates are 4-9 times richer in carotenoids than their orange-fleshed counterparts, regardless of their maturation stage. The most significant difference observed between both varieties was the presence of lycopene at moderate concentrations (around 8 µg/g FW) in the mature pulp of the red varieties, which was absent in the blond ones. This is because the red-fleshed sweet oranges grown in tropical climates with high temperatures increase lycopene and β-carotene concentrations in their pulp during fruit maturation. Due to lycopene accumulation, red orange juice offers a promising addition to popular blond-orange, with the new varieties Carrancas and Pinhal being perfectly suitable for blending to enhance juice colour. Sao Paulo, one of the world's leading citrus orange juice producers, as well as other tropical citrus regions could benefit from cultivating using such lycopene-rich cultivars and industrially.
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Affiliation(s)
- Lourdes Carmona
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas, Universidad Politécnica de Valencia, 46022 Valencia, Spain; (L.C.); (B.A.)
- Fundo de Defesa da Citricultura (Fundecitrus), Araraquara 14807-040, SP, Brazil
| | - Berta Alquézar
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas, Universidad Politécnica de Valencia, 46022 Valencia, Spain; (L.C.); (B.A.)
- Fundo de Defesa da Citricultura (Fundecitrus), Araraquara 14807-040, SP, Brazil
| | - Leandro Peña
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas, Universidad Politécnica de Valencia, 46022 Valencia, Spain; (L.C.); (B.A.)
- Fundo de Defesa da Citricultura (Fundecitrus), Araraquara 14807-040, SP, Brazil
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Morelli L, Perez-Colao P, Reig-Lopez D, Di X, Llorente B, Rodriguez-Concepcion M. Boosting pro-vitamin A content and bioaccessibility in leaves by combining engineered biosynthesis and storage pathways with high-light treatments. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024. [PMID: 39121193 DOI: 10.1111/tpj.16964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 07/16/2024] [Accepted: 07/23/2024] [Indexed: 08/11/2024]
Abstract
Biofortification of green leafy vegetables with pro-vitamin A carotenoids, such as β-carotene, has remained challenging to date. Here, we combined two strategies to achieve this goal. One of them involves producing β-carotene in the cytosol of leaf cells to avoid the negative impacts on photosynthesis derived from changing the balance of carotenoids and chlorophylls in chloroplasts. The second approach involves the conversion of chloroplasts into non-photosynthetic, carotenoid-overaccumulating chromoplasts in leaves agroinfiltrated or infected with constructs encoding the bacterial phytoene synthase crtB, leaving other non-engineered leaves of the plant to sustain normal growth. A combination of these two strategies, referred to as strategy C (for cytosolic production) and strategy P (for plastid conversion mediated by crtB), resulted in a 5-fold increase in the amount of β-carotene in Nicotiana benthamiana leaves. Following several attempts to further improve β-carotene leaf contents by metabolic engineering, hormone treatments and genetic screenings, it was found that promoting the proliferation of plastoglobules with increased light-intensity treatments not only improved β-carotene accumulation but it also resulted in a much higher bioaccessibility. The combination of strategies C and P together with a more intense light treatment increased the levels of accessible β-carotene 30-fold compared to controls. We further demonstrated that stimulating plastoglobule proliferation with strategy P, but also with a higher-light treatment alone, also improved β-carotene contents and bioaccessibility in edible lettuce (Lactuca sativa) leaves.
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Affiliation(s)
- Luca Morelli
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-Universitat Politècnica de València, Valencia, 46022, Spain
| | - Pablo Perez-Colao
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-Universitat Politècnica de València, Valencia, 46022, Spain
| | - Diego Reig-Lopez
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-Universitat Politècnica de València, Valencia, 46022, Spain
| | - Xueni Di
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-Universitat Politècnica de València, Valencia, 46022, Spain
| | - Briardo Llorente
- ARC Center of Excellence in Synthetic Biology, Australian Genome Foundry, and School of Natural Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia
| | - Manuel Rodriguez-Concepcion
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-Universitat Politècnica de València, Valencia, 46022, Spain
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Kumar P, Banik SP, Ohia SE, Moriyama H, Chakraborty S, Wang CK, Song YS, Goel A, Bagchi M, Bagchi D. Current Insights on the Photoprotective Mechanism of the Macular Carotenoids, Lutein and Zeaxanthin: Safety, Efficacy and Bio-Delivery. JOURNAL OF THE AMERICAN NUTRITION ASSOCIATION 2024; 43:505-518. [PMID: 38393321 DOI: 10.1080/27697061.2024.2319090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 02/11/2024] [Indexed: 02/25/2024]
Abstract
Ocular health has emerged as one of the major issues of global health concern with a decline in quality of life in an aging population, in particular and rise in the number of associated morbidities and mortalities. One of the chief reasons for vision impairment is oxidative damage inflicted to photoreceptors in rods and cone cells by blue light as well as UV radiation. The scenario has been aggravated by unprecedented rise in screen-time during the COVID and post-COVID era. Lutein and Zeaxanthin are oxygenated carotenoids with proven roles in augmentation of ocular health largely by virtue of their antioxidant properties and protective effects against photobleaching of retinal pigments, age-linked macular degeneration, cataract, and retinitis pigmentosa. These molecules are characterized by their characteristic yellow-orange colored pigmentation and are found in significant amounts in vegetables such as corn, spinach, broccoli, carrots as well as fish and eggs. Unique structural signatures including tetraterpenoid skeleton with extensive conjugation and the presence of hydroxyl groups at the end rings have made these molecules evolutionarily adapted to localize in the membrane of the photoreceptor cells and prevent their free radical induced peroxidation. Apart from the benefits imparted to ocular health, lutein and zeaxanthin are also known to improve cognitive function, cardiovascular physiology, and arrest the development of malignancy. Although abundant in many natural sources, bioavailability of these compounds is low owing to their long aliphatic backbones. Under the circumstances, there has been a concerted effort to develop vegetable oil-based carriers such as lipid nano-emulsions for therapeutic administration of carotenoids. This review presents a comprehensive update of the therapeutic potential of the carotenoids along with the challenges in achieving an optimized delivery tool for maximizing their effectiveness inside the body.
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Affiliation(s)
- Pawan Kumar
- R&D Department, Chemical Resources (CHERESO), Panchkula, India
| | - Samudra P Banik
- Department of Microbiology, Maulana Azad College, Kolkata, India
| | - Sunny E Ohia
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX, USA
| | - Hiroyoshi Moriyama
- Department of Scientific Affairs, The Japanese Institute for Health Food Standards, Tokyo, Japan
| | - Sanjoy Chakraborty
- Department of Biological Sciences, New York City College of Technology/CUNY, Brooklyn, NY, USA
| | - Chin-Kun Wang
- Department of Nutrition, Chung Shan Medical University, Taichung, Taiwan
| | - Yong Sang Song
- Department of Obstetrics and Gynaecology, Seoul National University Hospital, Seoul, South Korea
| | - Apurva Goel
- Regulation Department, Chemical Resources (CHERESO), Panchkula, India
| | | | - Debasis Bagchi
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Texas Southern University, Houston, TX, USA
- Department of Biology, College of Arts and Sciences, and Department of Psychology, Gordon F. Derner School of Psychology, Adelphi University, Garden City, NY, USA
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Perez-Gil J, Behrendorff J, Douw A, Vickers CE. The methylerythritol phosphate pathway as an oxidative stress sense and response system. Nat Commun 2024; 15:5303. [PMID: 38906898 PMCID: PMC11192765 DOI: 10.1038/s41467-024-49483-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 06/05/2024] [Indexed: 06/23/2024] Open
Abstract
The methylerythritol phosphate (MEP) pathway is responsible for biosynthesis of the precursors of isoprenoid compounds in eubacteria and plastids. It is a metabolic alternative to the well-known mevalonate pathway for isoprenoid production found in archaea and eukaryotes. Recently, a role for the MEP pathway in oxidative stress detection, signalling, and response has been identified. This role is executed in part through the unusual cyclic intermediate, methylerythritol cyclodiphosphate (MEcDP). We postulate that this response is triggered through the oxygen sensitivity of the MEP pathway's terminal iron-sulfur (Fe-S) cluster enzymes. MEcDP is the substrate of IspG, the first Fe-S cluster enzyme in the pathway; it accumulates under oxidative stress conditions and acts as a signalling molecule. It may also act as an antioxidant. Furthermore, evidence is emerging for a broader and highly nuanced role of the MEP pathway in oxidative stress responses, implemented through a complex system of differential regulation and sensitivity at numerous nodes in the pathway. Here, we explore the evidence for such a role (including the contribution of the Fe-S cluster enzymes and different pathway metabolites, especially MEcDP), the evolutionary implications, and the many questions remaining about the behaviour of the MEP pathway in the presence of oxidative stress.
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Affiliation(s)
- Jordi Perez-Gil
- ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology, Brisbane, QLD, 4000, Australia
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, Brisbane, QLD, 4000, Australia
- School of Environmental and Biological Science, Queensland University of Technology, Brisbane, QLD, 4001, Australia
| | - James Behrendorff
- ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology, Brisbane, QLD, 4000, Australia
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, Brisbane, QLD, 4000, Australia
- School of Environmental and Biological Science, Queensland University of Technology, Brisbane, QLD, 4001, Australia
| | - Andrew Douw
- ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology, Brisbane, QLD, 4000, Australia
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Claudia E Vickers
- ARC Centre of Excellence in Synthetic Biology, Queensland University of Technology, Brisbane, QLD, 4000, Australia.
- Centre for Agriculture and the Bioeconomy, Queensland University of Technology, Brisbane, QLD, 4000, Australia.
- School of Environmental and Biological Science, Queensland University of Technology, Brisbane, QLD, 4001, Australia.
- BioBuilt Solutions, Corinda, QLD, 4075, Australia.
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Zhou C, Bo W, El-Kassaby YA, Li W. Transcriptome profiles reveal response mechanisms and key role of PsNAC1 in Pinus sylvestris var. mongolica to drought stress. BMC PLANT BIOLOGY 2024; 24:343. [PMID: 38671396 PMCID: PMC11046967 DOI: 10.1186/s12870-024-05051-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 04/19/2024] [Indexed: 04/28/2024]
Abstract
BACKGROUND Drought stress severely impedes plant growth, and only a limited number of species exhibit long-term resistance to such conditions. Pinus sylvestris var. mongolica, a dominant tree species in arid and semi-arid regions of China, exhibits strong drought resistance and plays a crucial role in the local ecosystem. However, the molecular mechanisms underlying this resistance remain poorly understood. RESULTS Here, we conducted transcriptome sequence and physiological indicators analysis of needle samples during drought treatment and rehydration stages. De-novo assembly yielded approximately 114,152 unigenes with an N50 length of 1,363 bp. We identified 6,506 differentially expressed genes (DEGs), with the majority being concentrated in the heavy drought stage (4,529 DEGs). Functional annotation revealed enrichment of drought-related GO terms such as response to water (GO:0009415: enriched 108 genes) and response to water deprivation (GO:0009414: enriched 106 genes), as well as KEGG categories including MAPK signaling pathway (K04733: enriched 35 genes) and monoterpenoid biosynthesis (K21374: enriched 27 genes). Multiple transcription factor families and functional protein families were differentially expressed during drought treatment. Co-expression network analysis identified a potential drought regulatory network between cytochrome P450 genes (Unigene4122_c1_g1) and a core regulatory transcription factor Unigene9098_c3_g1 (PsNAC1) with highly significant expression differences. We validated PsNAC1 overexpression in Arabidopsis and demonstrated enhanced drought resistance. CONCLUSIONS These findings provide insight into the molecular basis of drought resistance in P. sylvestris var. mongolica and lay the foundation for further exploration of its regulatory network.
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Affiliation(s)
- Chengcheng Zhou
- State Key Laboratory of Tree Genetics and Breeding, National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Wenhao Bo
- State Key Laboratory of Tree Genetics and Breeding, National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China
| | - Yousry A El-Kassaby
- Department of Forest and Conservation Sciences, Faculty of Forestry, University of British Columbia, 2424 Main Mall, Vancouver, BC, V6T 1Z4, Canada
| | - Wei Li
- State Key Laboratory of Tree Genetics and Breeding, National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Technology, Beijing Forestry University, Beijing, 100083, China.
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Chen EC, Shapiro RL, Pal A, Bartee D, DeLong K, Carter DM, Serrano-Diaz E, Rais R, Ensign LM, Freel Meyers CL. Investigating inhibitors of 1-deoxy-d-xylulose 5-phosphate synthase in a mouse model of UTI. Microbiol Spectr 2024; 12:e0389623. [PMID: 38376151 PMCID: PMC10986598 DOI: 10.1128/spectrum.03896-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Accepted: 02/05/2024] [Indexed: 02/21/2024] Open
Abstract
The rising rate of antimicrobial resistance continues to threaten global public health. Further hastening antimicrobial resistance is the lack of new antibiotics against new targets. The bacterial enzyme, 1-deoxy-d-xylulose 5-phosphate synthase (DXPS), is thought to play important roles in central metabolism, including processes required for pathogen adaptation to fluctuating host environments. Thus, impairing DXPS function represents a possible new antibacterial strategy. We previously investigated a DXPS-dependent metabolic adaptation as a potential target in uropathogenic Escherichia coli (UPEC) associated with urinary tract infection (UTI), using the DXPS-selective inhibitor butyl acetylphosphonate (BAP). However, investigations of DXPS inhibitors in vivo have not been conducted. The goal of the present study is to advance DXPS inhibitors as in vivo probes and assess the potential of inhibiting DXPS as a strategy to prevent UTI in vivo. We show that BAP was well-tolerated at high doses in mice and displayed a favorable pharmacokinetic profile for studies in a mouse model of UTI. Further, an alkyl acetylphosphonate prodrug (homopropargyl acetylphosphonate, pro-hpAP) was significantly more potent against UPEC in urine culture and exhibited good exposure in the urinary tract after systemic dosing. Prophylactic treatment with either BAP or pro-hpAP led to a partial protective effect against UTI, with the prodrug displaying improved efficacy compared to BAP. Overall, our results highlight the potential for DXPS inhibitors as in vivo probes and establish preliminary evidence that inhibiting DXPS impairs UPEC colonization in a mouse model of UTI.IMPORTANCENew antibiotics against new targets are needed to prevent an antimicrobial resistance crisis. Unfortunately, antibiotic discovery has slowed, and many newly FDA-approved antibiotics do not inhibit new targets. Alkyl acetylphosphonates (alkyl APs), which inhibit the enzyme 1-deoxy-d-xylulose 5-phosphate synthase (DXPS), represent a new possible class of compounds as there are no FDA-approved DXPS inhibitors. To our knowledge, this is the first study demonstrating the in vivo safety, pharmacokinetics, and efficacy of alkyl APs in a urinary tract infection mouse model.
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Affiliation(s)
- Eric C. Chen
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Rachel L. Shapiro
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland, USA
| | - Arindom Pal
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - David Bartee
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Kevin DeLong
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland, USA
| | - Davell M. Carter
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Erika Serrano-Diaz
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Rana Rais
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Laura M. Ensign
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Center for Nanomedicine at the Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland, USA
- Department of Ophthalmology, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, USA
| | - Caren L. Freel Meyers
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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11
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Feng K, Yan YJ, Sun N, Yang ZY, Zhao SP, Wu P, Li LJ. Exogenous methyl jasmonate treatment induced the transcriptional responses and accumulation of volatile terpenoids in Oenanthe javanica (Blume) DC. Int J Biol Macromol 2024; 265:131017. [PMID: 38513909 DOI: 10.1016/j.ijbiomac.2024.131017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 03/18/2024] [Accepted: 03/18/2024] [Indexed: 03/23/2024]
Abstract
Water dropwort is favored by consumers for its unique flavor and medicinal value. Terpenoids were identified as the main volatile compounds related to its flavor. In this study, water dropwort was treated with different concentrations of exogenous methyl jasmonate (MeJA). The contents of volatile terpenoids were determined under various MeJA treatments. The results indicated that 0.1 mM of MeJA most effectively promoted the biosynthesis of flavor-related terpenoids in water dropwort. Terpinolene accounted the highest proportion among terpene compounds in water dropwort. The contents of jasmonates in water dropwort were also increased after exogenous MeJA treatments. Transcriptome analysis indicated that DEGs involved in the terpenoid biosynthesis pathway were upregulated. The TPS family was identified from water dropwort, and the expression levels of Oj0473630, Oj0287510 and Oj0240400 genes in TPS-b subfamily were consistent with the changes of terpene contents under MeJA treatments. Oj0473630 was cloned from the water dropwort and designated as OjTPS3, which is predicted to be related to the biosynthesis of terpinolene in water dropwort. Subcellular localization indicated that OjTPS3 protein was localized in chloroplast. Protein purification and enzyme activity of OjTPS3 protein were conducted. The results showed that the purified OjTPS3 protein catalyzed the biosynthesis of terpinolene by using geranyl diphosphate (GPP) as substrate in vitro. This study will facilitate to further understand the molecular mechanism of terpenoid biosynthesis and provide a strategy to improve the flavor of water dropwort.
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Affiliation(s)
- Kai Feng
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
| | - Ya-Jie Yan
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
| | - Nan Sun
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
| | - Zhi-Yuan Yang
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
| | - Shu-Ping Zhao
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
| | - Peng Wu
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China
| | - Liang-Jun Li
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China; Joint International Research Laboratory of Agriculture and Agri-Product Safety of Ministry of Education of China, Yangzhou University, Yangzhou 225009, China.
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12
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Wei G, Chen Y, Wang J, Feng L. Molecular cloning and characterization of farnesyl diphosphate synthase from Rosa rugosa Thunb associated with salinity stress. PeerJ 2024; 12:e16929. [PMID: 38435988 PMCID: PMC10909355 DOI: 10.7717/peerj.16929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/22/2024] [Indexed: 03/05/2024] Open
Abstract
Rosa rugosa, a renowned ornamental plant, is cultivated for its essential oil containing valuable monoterpenes, sesquiterpenes, and other compounds widely used in the floriculture industry. Farnesyl diphosphate synthase (FPPS) is a key enzyme involved in the biosynthesis of sesquiterpenes and triterpenes for abiotic or biotic stress. In this study, we successfully cloned and characterized a full-length FPPS- encoding cDNA identified as RrFPPS1 using RT-PCR from R. rugosa. Phylogenetic analysis showed that RrFPPS1 belonged to the angiosperm-FPPS clade. Transcriptomic and RT-qPCR analyses revealed that the RrFPPS1 gene had tissue-specific expression patterns. Subcellular localization analysis using Nicotiana benthamiana leaves showed that RrFPPS1 was a cytoplasmic protein. In vitro enzymatic assays combined with GC-MS analysis showed that RrFPPS1 produced farnesyl diphosphate (FPP) using isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP) as substrates to provide a precursor for sesquiterpene and triterpene biosynthesis in the plant. Additionally, our research found that RrFPPS1 was upregulated under salt treatment. These substantial findings contribute to an improved understanding of terpene biosynthesis in R. rugosa and open new opportunities for advancements in horticultural practices and fragrance industries by overexpression of the RrFPPS1 gene in vivo increased FPP production and subsequently led to elevated sesquiterpene yields in the future. The knowledge gained from this study can potentially lead to the development of enhanced varieties of R. rugosa with improved aroma, medicinal properties, and resilience to environmental stressors.
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Affiliation(s)
- Guo Wei
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou, China
| | - Yudie Chen
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou, China
| | - Jianwen Wang
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou, China
| | - Liguo Feng
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou, China
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13
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Kong CH, Li Z, Li FL, Xia XX, Wang P. Chemically Mediated Plant-Plant Interactions: Allelopathy and Allelobiosis. PLANTS (BASEL, SWITZERLAND) 2024; 13:626. [PMID: 38475470 DOI: 10.3390/plants13050626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 02/20/2024] [Accepted: 02/22/2024] [Indexed: 03/14/2024]
Abstract
Plant-plant interactions are a central driver for plant coexistence and community assembly. Chemically mediated plant-plant interactions are represented by allelopathy and allelobiosis. Both allelopathy and allelobiosis are achieved through specialized metabolites (allelochemicals or signaling chemicals) produced and released from neighboring plants. Allelopathy exerts mostly negative effects on the establishment and growth of neighboring plants by allelochemicals, while allelobiosis provides plant neighbor detection and identity recognition mediated by signaling chemicals. Therefore, plants can chemically affect the performance of neighboring plants through the allelopathy and allelobiosis that frequently occur in plant-plant intra-specific and inter-specific interactions. Allelopathy and allelobiosis are two probably inseparable processes that occur together in plant-plant chemical interactions. Here, we comprehensively review allelopathy and allelobiosis in plant-plant interactions, including allelopathy and allelochemicals and their application for sustainable agriculture and forestry, allelobiosis and plant identity recognition, chemically mediated root-soil interactions and plant-soil feedback, and biosynthesis and the molecular mechanisms of allelochemicals and signaling chemicals. Altogether, these efforts provide the recent advancements in the wide field of allelopathy and allelobiosis, and new insights into the chemically mediated plant-plant interactions.
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Affiliation(s)
- Chui-Hua Kong
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Zheng Li
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Feng-Li Li
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Xin-Xin Xia
- College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China
| | - Peng Wang
- Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
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14
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Huang X, Liu X, Wang Q, Zhou Y, Deng S, He Q, Han H. Transcriptomic and targeted metabolome analyses revealed the regulatory mechanisms of the synthesis of bioactive compounds in Citrus grandis 'tomentosa'. PeerJ 2024; 12:e16881. [PMID: 38410798 PMCID: PMC10896087 DOI: 10.7717/peerj.16881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 01/12/2024] [Indexed: 02/28/2024] Open
Abstract
Exocarpium Citri Grandis is a popular Chinese herbal medicine prepared from Citrus grandis 'tomentosa', and it is rich in several bioactive compounds, including flavonoids, coumarins, and volatile oils. However, studies are yet to elucidate the mechanisms of synthesis and regulation of these active components. Therefore, the present study examined the profiles of flavonoids and volatile oil bioactive compounds in plant petals, fruits, and tender leaves, and then performed RNA sequencing on different tissues to identify putative genes involved in the synthesis of bioactive compounds. The results show that the naringin, naringenin, and coumarin contents of the fruitlets were significantly higher than those of the tender leaves and petals, whereas the tender leaves had significantly higher levels of rhoifolin and apigenin. A total of 49 volatile oils, of which 10 were mainly found in flowers, 15 were mainly found in fruits, and 18 were mainly found in leaves, were identified. RNA sequencing identified 9,942 genes that were differentially expressed in different tissues. Further analysis showed that 20, 15, and 74 differentially expressed genes were involved in regulating flavonoid synthesis, regulating coumarin synthesis, and synthesis and regulation of terpenoids, respectively. CHI1 (Cg7g005600) and 1,2Rhat gene (Cg1g023820) may be involved in the regulation of naringin synthesis in C. grandis fruits. The HDR (Cg8g006150) gene, HMGS gene (Cg5g009630) and GGPS (Cg1g003650) may be involved in the regulation and synthesis of volatile oils in C. grandis petals. Overall, the findings of the present study enhance our understanding of the regulatory mechanisms of secondary metabolites in C. grandis, which could promote the breeding of C. grandis with desired characteristics.
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Affiliation(s)
- Xinmin Huang
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, China
- Guangdong Provincial Engineering Technique Research Center for Exocarpium Citri Grandis Planting and Processing, Maoming, China
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, China
| | - Xiaoli Liu
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, China
| | - Qi Wang
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, China
| | - Yanqing Zhou
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, China
| | - Shiting Deng
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, China
| | - Qinqin He
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, China
- Guangdong Provincial Engineering Technique Research Center for Exocarpium Citri Grandis Planting and Processing, Maoming, China
| | - Hanbing Han
- College of Biology and Food Engineering, Guangdong University of Petrochemical Technology, Maoming, China
- Guangdong Provincial Engineering Technique Research Center for Exocarpium Citri Grandis Planting and Processing, Maoming, China
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, China
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15
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Ma S, Sun C, Su W, Zhao W, Zhang S, Su S, Xie B, Kong L, Zheng J. Transcriptomic and physiological analysis of atractylodes chinensis in response to drought stress reveals the putative genes related to sesquiterpenoid biosynthesis. BMC PLANT BIOLOGY 2024; 24:91. [PMID: 38317086 PMCID: PMC10845750 DOI: 10.1186/s12870-024-04780-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 01/29/2024] [Indexed: 02/07/2024]
Abstract
BACKGROUND Atractylodes chinensis (DC) Koidz., a dicotyledonous and hypogeal germination species, is an important medicinal plant because its rhizome is enriched in sesquiterpenes. The development and production of A. chinensis are negatively affected by drought stress, especially at the seedling stage. Understanding the molecular mechanism of A. chinensis drought stress response plays an important role in ensuring medicinal plant production and quality. In this study, A. chinensis seedlings were subjected to drought stress treatment for 0 (control), 3 (D3), and 9 days (D9). For the control, the sample was watered every two days and collected on the second morning after watering. The integration of physiological and transcriptomic analyses was carried out to investigate the effects of drought stress on A. chinensis seedlings and to reveal the molecular mechanism of its drought stress response. RESULTS The malondialdehyde, proline, soluble sugar, and crude protein contents and antioxidative enzyme (superoxide dismutase, peroxidase, and catalase) activity were significantly increased under drought stress compared with the control. Transcriptomic analysis indicated a total of 215,665 unigenes with an average length of 759.09 bp and an N50 of 1140 bp. A total of 29,449 differentially expressed genes (DEGs) were detected between the control and D3, and 14,538 DEGs were detected between the control and D9. Under drought stress, terpenoid backbone biosynthesis had the highest number of unigenes in the metabolism of terpenoids and polyketides. To identify candidate genes involved in the sesquiterpenoid and triterpenoid biosynthetic pathways, we observed 22 unigene-encoding enzymes in the terpenoid backbone biosynthetic pathway and 15 unigene-encoding enzymes in the sesquiterpenoid and triterpenoid biosynthetic pathways under drought stress. CONCLUSION Our study provides transcriptome profiles and candidate genes involved in sesquiterpenoid and triterpenoid biosynthesis in A. chinensis in response to drought stress. Our results improve our understanding of how drought stress might affect sesquiterpenoid and triterpenoid biosynthetic pathways in A. chinensis.
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Affiliation(s)
- Shanshan Ma
- Hebei Key Laboratory of Crop Stress Biology, Hebei Normal University of Science & Technology, Qinhuangdao, Hebei, 066004, China
| | - Chengzhen Sun
- Hebei Key Laboratory of Crop Stress Biology, Hebei Normal University of Science & Technology, Qinhuangdao, Hebei, 066004, China
| | - Wennan Su
- Hebei Key Laboratory of Crop Stress Biology, Hebei Normal University of Science & Technology, Qinhuangdao, Hebei, 066004, China
| | - Wenjun Zhao
- Hebei Key Laboratory of Crop Stress Biology, Hebei Normal University of Science & Technology, Qinhuangdao, Hebei, 066004, China
| | - Sai Zhang
- Hebei Key Laboratory of Crop Stress Biology, Hebei Normal University of Science & Technology, Qinhuangdao, Hebei, 066004, China
| | - Shuyue Su
- Hebei Key Laboratory of Crop Stress Biology, Hebei Normal University of Science & Technology, Qinhuangdao, Hebei, 066004, China
| | - Boyan Xie
- Hebei Key Laboratory of Crop Stress Biology, Hebei Normal University of Science & Technology, Qinhuangdao, Hebei, 066004, China
| | - Lijing Kong
- Hebei Key Laboratory of Crop Stress Biology, Hebei Normal University of Science & Technology, Qinhuangdao, Hebei, 066004, China
| | - Jinshuang Zheng
- Hebei Key Laboratory of Crop Stress Biology, Hebei Normal University of Science & Technology, Qinhuangdao, Hebei, 066004, China.
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16
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Wei G, Xu Y, Xu M, Shi X, Wang J, Feng L. Identification of Volatile Compounds and Terpene Synthase ( TPS) Genes Reveals ZcTPS02 Involved in β-Ocimene Biosynthesis in Zephyranthes candida. Genes (Basel) 2024; 15:185. [PMID: 38397175 PMCID: PMC10887521 DOI: 10.3390/genes15020185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/25/2024] [Accepted: 01/27/2024] [Indexed: 02/25/2024] Open
Abstract
Zephyranthes candida is a frequently cultivated ornamental plant containing several secondary metabolites, including alkaloids, flavonoids, and volatile organic compounds (VOCs). However, extensive research has been conducted only on non-VOCs found in the plant, whereas the production of VOCs and the molecular mechanisms underlying the biosynthesis of terpenes remain poorly understood. In this study, 17 volatile compounds were identified from Z. candida flowers using gas chromatography-mass spectrometry (GC-MS), with 16 of them being terpenoids. Transcriptome sequencing resulted in the identification of 17 terpene synthase (TPS) genes; two TPS genes, ZcTPS01 and ZcTPS02, had high expression levels. Biochemical characterization of two enzymes encoded by both genes revealed that ZcTPS02 can catalyze geranyl diphosphate (GPP) into diverse products, among which is β-ocimene, which is the second most abundant compound found in Z. candida flowers. These results suggest that ZcTPS02 plays a vital role in β-ocimene biosynthesis, providing valuable insights into terpene biosynthesis pathways in Z. candida. Furthermore, the expression of ZcTPS02 was upregulated after 2 h of methyl jasmonate (MeJA) treatment and downregulated after 4 h of the same treatment.
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Affiliation(s)
| | | | | | | | | | - Liguo Feng
- College of Horticulture and Landscape Architecture, Yangzhou University, Yangzhou 225009, China; (G.W.); (Y.X.); (M.X.); (X.S.); (J.W.)
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17
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Sodedji KAF, Assogbadjo AE, Lee B, Kim HY. An Integrated Approach for Biofortification of Carotenoids in Cowpea for Human Nutrition and Health. PLANTS (BASEL, SWITZERLAND) 2024; 13:412. [PMID: 38337945 PMCID: PMC10856932 DOI: 10.3390/plants13030412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 01/26/2024] [Accepted: 01/28/2024] [Indexed: 02/12/2024]
Abstract
Stress-resilient and highly nutritious legume crops can alleviate the burden of malnutrition and food security globally. Here, we focused on cowpea, a legume grain widely grown and consumed in regions at a high risk of micronutrient deficiencies, and we discussed the past and present research on carotenoid biosynthesis, highlighting different knowledge gaps and prospects for increasing this micronutrient in various edible parts of the crop. The literature survey revealed that, although carotenoids are important micronutrients for human health and nutrition, like in many other pulses, the potential of carotenoid biofortification in cowpea is still underexploited. We found that there is, to some extent, progress in the quantification of this micronutrient in cowpea; however, the diversity in content in the edible parts of the crop, namely, grains, pods, sprouts, and leaves, among the existing cowpea genetic resources was uncovered. Based on the description of the different factors that can influence carotenoid biosynthesis and accumulation in cowpea, we anticipated that an integrated use of omics in breeding coupled with mutagenesis and genetic engineering in a plant factory system would help to achieve a timely and efficient increase in carotenoid content in cowpea for use in the food systems in sub-Saharan Africa and South Asia.
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Affiliation(s)
- Kpedetin Ariel Frejus Sodedji
- Smart Farm Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Republic of Korea;
- Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology (UST), Daejeon 34113, Republic of Korea
- Non-Timber Forest Products and Orphan Crop Species Unit, Laboratory of Applied Ecology (LEA), University of Abomey-Calavi (UAC), Cotonou 05 BP 1752, Benin;
| | - Achille Ephrem Assogbadjo
- Non-Timber Forest Products and Orphan Crop Species Unit, Laboratory of Applied Ecology (LEA), University of Abomey-Calavi (UAC), Cotonou 05 BP 1752, Benin;
| | - Bokyung Lee
- Department of Health Sciences, The Graduate School of Dong-A University, Busan 49315, Republic of Korea
- Department of Food Science and Nutrition, Dong-A University, Busan 49315, Republic of Korea
| | - Ho-Youn Kim
- Smart Farm Research Center, Korea Institute of Science and Technology (KIST), Gangneung 25451, Republic of Korea;
- Division of Bio-Medical Science and Technology, KIST School, Korea University of Science and Technology (UST), Daejeon 34113, Republic of Korea
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18
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Chen W, Cui F, Zhu H, Zhang X, Lu S, Lu C, Chang H, Fan L, Lin H, Fang J, An Y, Li X, Qi Y. Genome-wide association study of kernel colour traits and mining of elite alleles from the major loci in maize. BMC PLANT BIOLOGY 2024; 24:25. [PMID: 38166633 PMCID: PMC10763400 DOI: 10.1186/s12870-023-04662-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 12/05/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND Maize kernel colour is an important index for evaluating maize quality and value and mainly entails two natural pigments, carotenoids and anthocyanins. To analyse the genetic mechanism of maize kernel colour and mine single nucleotide polymorphisms (SNPs) related to kernel colour traits, an association panel including 244 superior maize inbred lines was used to measure and analyse the six traits related to kernel colour in two environments and was then combined with the about 3 million SNPs covering the whole maize genome in this study. Two models (Q + K, PCA + K) were used for genome-wide association analysis (GWAS) of kernel colour traits. RESULTS We identified 1029QTLs, and two SNPs contained in those QTLs were located in coding regions of Y1 and R1 respectively, two known genes that regulate kernel colour. Fourteen QTLs which contain 19 SNPs were within 200 kb interval of the genes involved in the regulation of kernel colour. 13 high-confidence SNPs repeatedly detected for specific traits, and AA genotypes of rs1_40605594 and rs5_2392770 were the most popular alleles appeared in inbred lines with higher levels. By searching the confident interval of the 13 high-confidence SNPs, a total of 95 candidate genes were identified. CONCLUSIONS The genetic loci and candidate genes of maize kernel colour provided in this study will be useful for uncovering the genetic mechanism of maize kernel colour, gene cloning in the future. Furthermore, the identified elite alleles can be used to molecular marker-assisted selection of kernel colour traits.
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Affiliation(s)
- Weiwei Chen
- Institute of Nanfan & Seed Industry, Guangdong Academy of Science, Guangzhou, 510316, Guangdong, China
| | - Fangqing Cui
- Institute of Nanfan & Seed Industry, Guangdong Academy of Science, Guangzhou, 510316, Guangdong, China
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510325, Guangdong, China
| | - Hang Zhu
- Institute of Nanfan & Seed Industry, Guangdong Academy of Science, Guangzhou, 510316, Guangdong, China
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510325, Guangdong, China
- College of Agriculture, Yangtze University, Jingzhou, 434025, Hubei, China
| | - Xiangbo Zhang
- Institute of Nanfan & Seed Industry, Guangdong Academy of Science, Guangzhou, 510316, Guangdong, China
| | - Siqi Lu
- Institute of Nanfan & Seed Industry, Guangdong Academy of Science, Guangzhou, 510316, Guangdong, China
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510325, Guangdong, China
| | - Chuanli Lu
- Institute of Nanfan & Seed Industry, Guangdong Academy of Science, Guangzhou, 510316, Guangdong, China
| | - Hailong Chang
- Institute of Nanfan & Seed Industry, Guangdong Academy of Science, Guangzhou, 510316, Guangdong, China
| | - Lina Fan
- Institute of Nanfan & Seed Industry, Guangdong Academy of Science, Guangzhou, 510316, Guangdong, China
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510325, Guangdong, China
| | - Huanzhang Lin
- Institute of Nanfan & Seed Industry, Guangdong Academy of Science, Guangzhou, 510316, Guangdong, China
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510325, Guangdong, China
| | - Junteng Fang
- Institute of Nanfan & Seed Industry, Guangdong Academy of Science, Guangzhou, 510316, Guangdong, China
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510325, Guangdong, China
| | - Yuxing An
- Institute of Nanfan & Seed Industry, Guangdong Academy of Science, Guangzhou, 510316, Guangdong, China.
| | - Xuhui Li
- Institute of Nanfan & Seed Industry, Guangdong Academy of Science, Guangzhou, 510316, Guangdong, China.
| | - Yongwen Qi
- Institute of Nanfan & Seed Industry, Guangdong Academy of Science, Guangzhou, 510316, Guangdong, China.
- College of Agriculture and Biology, Zhongkai University of Agriculture and Engineering, Guangzhou, 510325, Guangdong, China.
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19
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Yao L, Wu X, Jiang X, Shan M, Zhang Z, Li Y, Yang A, Li Y, Yang C. Subcellular compartmentalization in the biosynthesis and engineering of plant natural products. Biotechnol Adv 2023; 69:108258. [PMID: 37722606 DOI: 10.1016/j.biotechadv.2023.108258] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 09/07/2023] [Accepted: 09/11/2023] [Indexed: 09/20/2023]
Abstract
Plant natural products (PNPs) are specialized metabolites with diverse bioactivities. They are extensively used in the pharmaceutical, cosmeceutical and food industries. PNPs are synthesized in plant cells by enzymes that are distributed in different subcellular compartments with unique microenvironments, such as ions, co-factors and substrates. Plant metabolic engineering is an emerging and promising approach for the sustainable production of PNPs, for which the knowledge of the subcellular compartmentalization of their biosynthesis is instrumental. In this review we describe the state of the art on the role of subcellular compartments in the biosynthesis of major types of PNPs, including terpenoids, phenylpropanoids, alkaloids and glucosinolates, and highlight the efforts to target biosynthetic pathways to subcellular compartments in plants. In addition, we will discuss the challenges and strategies in the field of plant synthetic biology and subcellular engineering. We expect that newly developed methods and tools, together with the knowledge gained from the microbial chassis, will greatly advance plant metabolic engineering.
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Affiliation(s)
- Lu Yao
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong 266100, China
| | - Xiuming Wu
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong 266100, China
| | - Xun Jiang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong 266100, China
| | - Muhammad Shan
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong 266100, China
| | - Zhuoxiang Zhang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong 266100, China
| | - Yiting Li
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong 266100, China
| | - Aiguo Yang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong 266100, China
| | - Yu Li
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
| | - Changqing Yang
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, Shandong 266100, China.
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20
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Di X, Rodriguez-Concepcion M. Exploring the Deoxy-D-xylulose-5-phosphate Synthase Gene Family in Tomato ( Solanum lycopersicum). PLANTS (BASEL, SWITZERLAND) 2023; 12:3886. [PMID: 38005784 PMCID: PMC10675008 DOI: 10.3390/plants12223886] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Revised: 11/10/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023]
Abstract
Isoprenoids are a wide family of metabolites including high-value chemicals, flavors, pigments, and drugs. Isoprenoids are particularly abundant and diverse in plants. The methyl-D-erythritol 4-phosphate (MEP) pathway produces the universal isoprenoid precursors isopentenyl diphosphate and dimethylallyl diphosphate in plant plastids for the downstream production of monoterpenes, diterpenes, and photosynthesis-related isoprenoids such as carotenoids, chlorophylls, tocopherols, phylloquinone, and plastoquinone. The enzyme deoxy-D-xylulose 5-phosphate synthase (DXS) is the first and main rate-determining enzyme of the MEP pathway. In tomato (Solanum lycopersicum), a plant with an active isoprenoid metabolism in several tissues, three genes encode DXS-like proteins (SlDXS1 to 3). Here, we show that the expression patterns of the three genes suggest distinct physiological roles without excluding that they might function together in some tissues. We also confirm that SlDXS1 and 2 are true DXS enzymes, whereas SlDXS3 lacks DXS activity. We further show that SlDXS1 and 2 co-localize in plastidial speckles and that they can be immunoprecipitated together, suggesting that they might form heterodimers in vivo in at least some tissues. These results provide novel insights for the biotechnological use of DXS isoforms in metabolic engineering strategies to up-regulate the MEP pathway flux.
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Affiliation(s)
- Xueni Di
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC—Universitat Politècnica de València, 46022 Valencia, Spain
| | - Manuel Rodriguez-Concepcion
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC—Universitat Politècnica de València, 46022 Valencia, Spain
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21
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Simonet B, Herrscher V, Witjaksono C, Chaignon P, Massicot F, Vasse JL, Seemann M, Behr JB. Carbohydrate-Templated Syntheses of Trifluoromethyl-Substituted MEP Analogues for the Study of the Methylerythritol Phosphate Pathway. J Org Chem 2023; 88:15832-15843. [PMID: 37917513 DOI: 10.1021/acs.joc.3c01910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
Trifluoromethyl analogues of methylerythritol phosphate (MEP) and 2-C-methyl-erythritol 2,4-cyclodiphosphate (MEcPP), natural substrates of key enzymes from the MEP pathway, were prepared starting from d-glucose as the chiral template to secure absolute configurations. The obligate trifluoromethyl group was inserted with complete diastereoselectivity using the Ruppert-Prakash nucleophile. Target compounds were assayed against the corresponding enzymes showing that trifluoro-MEP did not disrupt IspD activity, whereas trifluoro-MEcPP induced 40% inhibition of IspG at 1 mM.
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Affiliation(s)
- Basile Simonet
- Institut de Chimie moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne, 51687 Reims, Cedex 2, France
| | - Vivien Herrscher
- Institut de Chimie moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne, 51687 Reims, Cedex 2, France
| | - Clea Witjaksono
- Equipe Chimie Biologique et Applications Thérapeutiques, Institut de Chimie de Strasbourg UMR 7177, Université de Strasbourg/CNRS, 4, Rue Blaise Pascal, 67070 Strasbourg, France
| | - Philippe Chaignon
- Equipe Chimie Biologique et Applications Thérapeutiques, Institut de Chimie de Strasbourg UMR 7177, Université de Strasbourg/CNRS, 4, Rue Blaise Pascal, 67070 Strasbourg, France
| | - Fabien Massicot
- Institut de Chimie moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne, 51687 Reims, Cedex 2, France
| | - Jean-Luc Vasse
- Institut de Chimie moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne, 51687 Reims, Cedex 2, France
| | - Myriam Seemann
- Equipe Chimie Biologique et Applications Thérapeutiques, Institut de Chimie de Strasbourg UMR 7177, Université de Strasbourg/CNRS, 4, Rue Blaise Pascal, 67070 Strasbourg, France
| | - Jean-Bernard Behr
- Institut de Chimie moléculaire de Reims, CNRS UMR 7312, Université de Reims Champagne-Ardenne, 51687 Reims, Cedex 2, France
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22
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Paasela T, Lim KJ, Pavicic M, Harju A, Venäläinen M, Paulin L, Auvinen P, Kärkkäinen K, Teeri TH. Transcriptomic Analysis Reveals Novel Regulators of the Scots Pine Stilbene Pathway. PLANT & CELL PHYSIOLOGY 2023; 64:1204-1219. [PMID: 37674261 PMCID: PMC10579783 DOI: 10.1093/pcp/pcad089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 08/07/2023] [Indexed: 09/08/2023]
Abstract
Stilbenes accumulate in Scots pine heartwood where they have important roles in protecting wood from decaying fungi. They are also part of active defense responses, and their production is induced by different (a)biotic stressors. The specific transcriptional regulators as well as the enzyme responsible for activating the stilbene precursor cinnamate in the pathway are still unknown. UV-C radiation was the first discovered artificial stress activator of the pathway. Here, we describe a large-scale transcriptomic analysis of pine needles in response to UV-C and treatment with translational inhibitors, both activating the transcription of stilbene pathway genes. We used the data to identify putative candidates for the missing CoA ligase and for pathway regulators. We further showed that the pathway is transcriptionally activated by phosphatase inhibitor, ethylene and jasmonate treatments, as in grapevine, and that the stilbene synthase promoter retains its inducibility in some of the tested conditions in Arabidopsis, a species that normally does not synthesize stilbenes. Shared features between gymnosperm and angiosperm regulation and partially retained inducibility in Arabidopsis suggest that pathway regulation occurs not only via ancient stress-response pathway(s) but also via species-specific regulators. Understanding which genes control the biosynthesis of stilbenes in Scots pine aids breeding of more resistant trees.
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Affiliation(s)
| | - Kean-Jin Lim
- Department of Agricultural Sciences, Viikki Plant Science Centre, University of Helsinki, PO Box 27, Helsinki 00014, Finland
- State Key Laboratory of Subtropical Silviculture, College of Forestry and Biotechnology, Zhejiang A&F University, Lin’an District, Hangzhou, Zhejiang 311300, China
| | - Mirko Pavicic
- Oak Ridge National Laboratory, Biosciences Division, 1 Bethel Valley Rd, Oak Ridge, TN 37830, USA
| | - Anni Harju
- Production Systems Unit, Natural Resources Institute Finland (Luke), Vipusenkuja 5, Savonlinna 57200, Finland
| | - Martti Venäläinen
- Production Systems Unit, Natural Resources Institute Finland (Luke), Vipusenkuja 5, Savonlinna 57200, Finland
| | - Lars Paulin
- Institute of Biotechnology, University of Helsinki, PO Box 56, Helsinki 00014, Finland
| | - Petri Auvinen
- Institute of Biotechnology, University of Helsinki, PO Box 56, Helsinki 00014, Finland
| | - Katri Kärkkäinen
- Production Systems Unit, Natural Resources Institute Finland (Luke), Paavo Havaksentie 3, Oulu 90570, Finland
| | - Teemu H Teeri
- Department of Agricultural Sciences, Viikki Plant Science Centre, University of Helsinki, PO Box 27, Helsinki 00014, Finland
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23
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Li J, Tan Q, Yi M, Yu Z, Xia Q, Zheng L, Chen J, Zhou X, Zhang XQ, Guo HR. Identification of key genes responsible for green and white colored spathes in Anthurium andraeanum (Hort.). FRONTIERS IN PLANT SCIENCE 2023; 14:1208226. [PMID: 37745994 PMCID: PMC10511891 DOI: 10.3389/fpls.2023.1208226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 08/17/2023] [Indexed: 09/26/2023]
Abstract
Modern anthuriums, Anthurium andraeanum (Hort.) are among the most popular flowering plants and widely used for interior decoration. Their popularity is largely attributed to the exotic spathes with different colors. Previous studies have reported color development in red spathe cultivars, but limited information is available on key genes regulating white and green colored spathes. This study analyzed anthocyanin, chlorophyll, and carotenoid contents as well as transcript differences in spathes of eight cultivars that differed in spathe colors ranging from red to white and green. Results showed that increased expression of a transcription factor AaMYB2 was associated with elevated levels of anthocyanin in spathes, but decreased expression of AaMYB2 and increased expression of AaLAR (leucoanthocyanidin reductase) and AaANR (anthocyanidin reductase) were accompanied with the accumulation of colorless proanthocyanidin, thus the white spathe. As to the green colored spathe, chlorophyll content in the green spathe cultivar was substantially higher than the other cultivars. Correspondingly, transcripts of chlorophyll biosynthesis-related genes AaHemB (porphobilinogen synthase) and AaPor (protochlorophyllide oxidoreductase) were highly upregulated but almost undetectable in white and red spathes. The increased expression of AaHemB and AaPor was correlated with the expression of transcription factor AaMYB124. Subsequently, qRT-PCR analysis confirmed their expression levels in nine additional cultivars with red, white, and green spathes. A working model for the formation of white and green spathes was proposed. White colored spathes are likely due to the decreased expression of AaMYB2 which results in increased expression of AaLAR and AaANR, and the green spathes are attributed to AaMYB124 enhanced expression of AaHemB and AaPor. Further research is warranted to test this working model.
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Affiliation(s)
- Jieni Li
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
| | - Quanya Tan
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, China
| | - Maosheng Yi
- Guangzhou Flower Research Center, Guangzhou, China
| | - Zhengnan Yu
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
| | - Qing Xia
- Guangzhou Flower Research Center, Guangzhou, China
| | - Lu Zheng
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
| | - Jianjun Chen
- Mid-Florida Research and Education Center, Environmental Horticulture Department, Institute of Food and Agricultural Sciences, University of Florida, Apopka, FL, United States
| | - Xiaoyun Zhou
- Guangzhou Flower Research Center, Guangzhou, China
| | - Xiang-Qian Zhang
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
| | - He-Rong Guo
- College of Forestry and Landscape Architecture, South China Agricultural University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Plant Molecular Breeding, South China Agricultural University, Guangzhou, China
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24
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Jia Y, Yin X, Yang H, Xiang Y, Ding K, Pan Y, Jiang B, Yong X. Transcriptome Analyses Reveal the Aroma Terpeniods Biosynthesis Pathways of Primula forbesii Franch. and the Functional Characterization of the PfDXS2 Gene. Int J Mol Sci 2023; 24:12730. [PMID: 37628910 PMCID: PMC10454305 DOI: 10.3390/ijms241612730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/10/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
Primula forbesii Franch. is a unique biennial herb with a strong floral fragrance, making it an excellent material for studying the aroma characteristics of the genus Primula. The floral scent is an important ornamental trait that facilitates fertilization. However, the molecular mechanism regulating the floral scent in Primula is unknown. In order to better understand the biological mechanisms of floral scents in this species, this study used RNA sequencing analysis to discuss the first transcriptome sequence of four flowering stages of P. forbesii, which generated 12 P. forbesii cDNA libraries with 79.64 Gb of clean data that formed 51,849 unigenes. Moreover, 53.26% of the unigenes were annotated using public databases. P. forbesii contained 44 candidate genes covering all known enzymatic steps for the biosynthesis of volatile terpenes, the major contributor to the flower's scent. Finally, 1-deoxy-d-xylulose 5-phosphate synthase gene of P. forbesii (PfDXS2, MK370094), the first key enzyme gene in the 2-c-methyl-d-erythritol 4-phosphate (MEP) pathway of terpenoids, was cloned and functionally verified using virus-induced gene silencing (VIGs). The results showed that PfDXS2-silencing significantly reduced the relative concentrations of main volatile terpenes. This report is the first to present molecular data related to aroma metabolites biosynthesis pathways and the functional characterization of any P. forbesii gene. The data on RNA sequencing provide comprehensive information for further analysis of other plants of the genus Primula.
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Affiliation(s)
- Yin Jia
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China; (X.Y.); (H.Y.); (Y.X.); (K.D.); (Y.P.); (B.J.); (X.Y.)
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25
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Alam SSM, Samanta A, Uddin F, Ali S, Hoque M. Tanshinone IIA targeting cell signaling pathways: a plausible paradigm for cancer therapy. Pharmacol Rep 2023:10.1007/s43440-023-00507-y. [PMID: 37440106 DOI: 10.1007/s43440-023-00507-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 06/09/2023] [Accepted: 06/14/2023] [Indexed: 07/14/2023]
Abstract
Natural compounds originating from plants offer a wide range of pharmacological potential and have traditionally been used to treat a wide range of diseases including cancer. Tanshinone IIA (Tan IIA), a bioactive molecule found in the roots of the Traditional Chinese Medicine (TCM) herb Salvia miltiorrhiza, has been shown to have remarkable anticancer properties through several mechanisms, such as inhibition of tumor cell growth and proliferation, metastasis, invasion, and angiogenesis, as well as induction of apoptosis and autophagy. It has demonstrated excellent anticancer efficacy against cell lines from breast, cervical, colorectal, gastric, lung, and prostate cancer by modulating multiple signaling pathways including PI3K/Akt, JAK/STAT, IGF-1R, and Bcl-2-Caspase pathways. This review focuses on the role of Tan IIA in the treatment of various cancers, as well as the underlying molecular mechanisms.
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Affiliation(s)
| | - Arijit Samanta
- Applied Biochemistry Laboratory, Department of Biological Sciences, Aliah University, Kolkata, 700160, India
| | - Faizan Uddin
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, Bangalore, 560065, India
| | - Safdar Ali
- Clinical and Applied Genomics (CAG) Laboratory, Department of Biological Sciences, Aliah University, Kolkata, 700160, India
| | - Mehboob Hoque
- Applied Biochemistry Laboratory, Department of Biological Sciences, Aliah University, Kolkata, 700160, India.
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26
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Darwish H, Al-Osaimi GS, Al Kashgry NAT, Sonbol H, Alayafi AAM, Alabdallah NM, Al-Humaid A, Al-Harbi NA, Al-Qahtani SM, Abbas ZK, Darwish DBE, Ibrahim MFM, Noureldeen A. Evaluating the genotoxicity of salinity stress and secondary products gene manipulation in lime, Citrus aurantifolia, plants. FRONTIERS IN PLANT SCIENCE 2023; 14:1211595. [PMID: 37502705 PMCID: PMC10369181 DOI: 10.3389/fpls.2023.1211595] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 06/22/2023] [Indexed: 07/29/2023]
Abstract
Salinity is a significant abiotic stress that has a profound effect on growth, the content of secondary products, and the genotoxicity of cells. Lime, Citrus aurantifolia, is a popular plant belonging to the family Rutaceae. The interest in cultivating this plant is due to the importance of its volatile oil, which is included in many pharmaceutical industries, but C. aurantifolia plants are affected by the NaCl salinity levels. In the present study, a comet assay test has been applied to evaluate the genotoxic impact of salinity at 0, 50, 100, and 200 mM of NaCl on C. aurantifolia tissue-cultured plants. Furthermore, terpene gene expression was investigated using a semi-quantitative real-time polymerase chain reaction. Results from the two analyses revealed that 200 mM of NaCl stress resulted in high levels of severe damage to the C. aurantifolia plants' DNA tail 21.8%, tail length 6.56 µm, and tail moment 3.19 Unit. The relative highest expression of RtHK and TAT genes was 2.08, and 1.693, respectively, when plants were exposed to 200 mM of NaCl, whereas pv4CL2RT expressed 1.50 in plants subjected to 100 mM of NaCl. The accumulation of transcripts for the RTMYB was 0.951 when plants were treated with NaCl at 50 mM, and RtGPPS gene was significantly decreased to 0.446 during saline exposure at 100 mM. We conclude that the comet assay test offers an appropriate tool to detect DNA damage as well as RtHK, TAT, and pv4CL2RT genes having post-transcriptional regulation in C. aurantifolia plant cells under salinity stress. Future studies are needed to assess the application of gene expression and comet assay technologies using another set of genes that show vulnerability to different stresses on lime and other plants.
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Affiliation(s)
- Hadeer Darwish
- Department of Biotechnology, College of Science, Taif University, Taif, Saudi Arabia
- Department of Medicinal and Aromatic Plants, Horticulture Research Institute, Agricultural Research Center, Giza, Egypt
| | - Ghaida S. Al-Osaimi
- Department of Biotechnology, College of Science, Taif University, Taif, Saudi Arabia
| | | | - Hana Sonbol
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Aisha A. M. Alayafi
- Department of Biological Sciences, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Nadiyah M. Alabdallah
- Department of Biology, College of Science, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
- Basic and Applied Scientific Research Center, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Abdulrahman Al-Humaid
- Plant Production and Protection Department, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, Saudi Arabia
| | - Nadi Awad Al-Harbi
- Biology Department, University College of Tayma, University of Tabuk, Tabuk, Saudi Arabia
| | | | - Zahid Khorshid Abbas
- Department of Biology, Faculty of Sciences, University of Tabuk, Tabuk, Saudi Arabia
| | - Doaa Bahaa Eldin Darwish
- Department of Biology, Faculty of Sciences, University of Tabuk, Tabuk, Saudi Arabia
- Botany Department, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - Mohamed F. M. Ibrahim
- Department of Agricultural Botany, Faculty of Agriculture, Ain Shams University, Cairo, Egypt
| | - Ahmed Noureldeen
- Department of Biology, College of Science, Taif University, Taif, Saudi Arabia
- Department of Agricultural Zoology, Faculty of Agriculture, Mansoura University, Mansoura, Egypt
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27
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Wang P, Wei J, Hua X, Dong G, Dziedzic K, Wahab AT, Efferth T, Sun W, Ma P. Plant anthraquinones: Classification, distribution, biosynthesis, and regulation. J Cell Physiol 2023. [PMID: 37393608 DOI: 10.1002/jcp.31063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/10/2023] [Accepted: 05/22/2023] [Indexed: 07/04/2023]
Abstract
Anthraquinones are polycyclic compounds with an unsaturated diketone structure (quinoid moiety). As important secondary metabolites of plants, anthraquinones play an important role in the response of many biological processes and environmental factors. Anthraquinones are common in the human diet and have a variety of biological activities including anticancer, antibacterial, and antioxidant activities that reduce disease risk. The biological activity of anthraquinones depends on the substitution pattern of their hydroxyl groups on the anthraquinone ring structure. However, there is still a lack of systematic summary on the distribution, classification, and biosynthesis of plant anthraquinones. Therefore, this paper systematically reviews the research progress of the distribution, classification, biosynthesis, and regulation of plant anthraquinones. Additionally, we discuss future opportunities in anthraquinone research, including biotechnology, therapeutic products, and dietary anthraquinones.
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Affiliation(s)
- Peng Wang
- College of Life Sciences, Northwest A&F University, Yangling, China
| | - Jia Wei
- Jilin Provincial Key Laboratory of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, Changchun, China
| | - Xin Hua
- College of Life Sciences, Northeast Forestry University, Harbin, China
| | | | - Krzysztof Dziedzic
- Department of Food Technology of Plant Origin, Poznan' University of Life Sciences, Poznań, Poland
| | - Atia-Tul Wahab
- Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Thomas Efferth
- Department of Pharmaceutical Biology, Institute of Pharmaceutical and Biomedical Sciences, Johannes Gutenberg University, Mainz, Germany
| | - Wei Sun
- Key Laboratory of Beijing for Identification and Safety Evaluation of Chinese Medicine, Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Pengda Ma
- College of Life Sciences, Northwest A&F University, Yangling, China
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28
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Zhao Y, Liu G, Yang F, Liang Y, Gao Q, Xiang C, Li X, Yang R, Zhang G, Jiang H, Yu L, Yang S. Multilayered regulation of secondary metabolism in medicinal plants. MOLECULAR HORTICULTURE 2023; 3:11. [PMID: 37789448 PMCID: PMC10514987 DOI: 10.1186/s43897-023-00059-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 04/27/2023] [Indexed: 10/05/2023]
Abstract
Medicinal plants represent a huge reservoir of secondary metabolites (SMs), substances with significant pharmaceutical and industrial potential. However, obtaining secondary metabolites remains a challenge due to their low-yield accumulation in medicinal plants; moreover, these secondary metabolites are produced through tightly coordinated pathways involving many spatiotemporally and environmentally regulated steps. The first regulatory layer involves a complex network of transcription factors; a second, more recently discovered layer of complexity in the regulation of SMs is epigenetic modification, such as DNA methylation, histone modification and small RNA-based mechanisms, which can jointly or separately influence secondary metabolites by regulating gene expression. Here, we summarize the findings in the fields of genetic and epigenetic regulation with a special emphasis on SMs in medicinal plants, providing a new perspective on the multiple layers of regulation of gene expression.
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Affiliation(s)
- Yan Zhao
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, 650201, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, 650201, China
| | - Guanze Liu
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, 650201, Kunming, China
| | - Feng Yang
- Institute of Chinese Medicinal Materials, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yanli Liang
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, 650201, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, 650201, China
| | - Qingqing Gao
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, 650201, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, 650201, China
| | - Chunfan Xiang
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, 650201, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, 650201, China
| | - Xia Li
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, 650201, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, 650201, China
| | - Run Yang
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, 650201, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, 650201, China
| | - Guanghui Zhang
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, 650201, Kunming, China
- College of Agronomy & Biotechnology, Yunnan Agricultural University, Kunming, 650201, China
| | - Huifeng Jiang
- Key Laboratory of Engineering Biology for Low-Carbon Manufacturing, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.
| | - Lei Yu
- College of Agronomy, Yunnan Urban Agricultural Engineering and Technological Research Center, Kunming University, Kunming, 650214, China.
| | - Shengchao Yang
- Key Laboratory of Medicinal Plant Biology of Yunnan Province, National & Local Joint Engineering Research Center on Germplasms Innovation & Utilization of Chinese Medicinal Materials in Southwest China, Yunnan Agricultural University, 650201, Kunming, China.
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Chen X, Wang MY, Deng CH, Beatson RA, Templeton KR, Atkinson RG, Nieuwenhuizen NJ. The hops (Humulus lupulus) genome contains a mid-sized terpene synthase family that shows wide functional and allelic diversity. BMC PLANT BIOLOGY 2023; 23:280. [PMID: 37231379 DOI: 10.1186/s12870-023-04283-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 05/14/2023] [Indexed: 05/27/2023]
Abstract
BACKGROUND Hops (Humulus lupulus L.) are a dioecious climbing perennial, with the dried mature "cones" (strobili) of the pistillate/female inflorescences being widely used as both a bittering agent and to enhance the flavour of beer. The glandular trichomes of the bract and bracteole flowering structures of the cones produce an abundance of secondary metabolites, such as terpenoids, bitter acids and prenylated phenolics depending on plant genetics, developmental stage and environment. More knowledge is required on the functional and allelic diversity of terpene synthase (TPS) genes responsible for the biosynthesis of volatile terpenes to assist in flavour-directed hop breeding. RESULTS Major volatile terpene compounds were identified using gas chromatography-mass spectrometry (GC-MS) in the ripe cones of twenty-one hop cultivars grown in New Zealand. All cultivars produced the monoterpene β-myrcene and the sesquiterpenes α-humulene and β-caryophyllene, but the quantities varied broadly. Other terpenes were found in large quantities in only a smaller subset of cultivars, e.g. β-farnesene (in seven cultivars) and α-pinene (in four). In four contrasting cultivars (Wakatu™, Wai-iti™, Nelson Sauvin™, and 'Nugget'), terpene production during cone development was investigated in detail, with concentrations of some of the major terpenes increasing up to 1000-fold during development and reaching maximal levels from 50-60 days after flowering. Utilising the published H. lupulus genome, 87 putative full-length and partial terpene synthase genes were identified. Alleles corresponding to seven TPS genes were amplified from ripe cone cDNA from multiple cultivars and subsequently functionally characterised by transient expression in planta. Alleles of the previously characterised HlSTS1 produced humulene/caryophyllene as the major terpenes. HlRLS alleles produced (R)-(-)-linalool, whilst alleles of two sesquiterpene synthase genes, HlAFS1 and HlAFS2 produced α-farnesene. Alleles of HlMTS1, HlMTS2 and HlTPS1 were inactive in all the hop cultivars studied. CONCLUSIONS Alleles of four TPS genes were identified and shown to produce key aroma volatiles in ripe hop cones. Multiple expressed but inactive TPS alleles were also identified, suggesting that extensive loss-of-function has occurred during domestication and breeding of hops. Our results can be used to develop hop cultivars with novel/improved terpene profiles using marker-assisted breeding strategies to select for, or against, specific TPS alleles.
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Affiliation(s)
- Xiuyin Chen
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Mindy Y Wang
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Cecilia H Deng
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Ron A Beatson
- PFR, 55 Old Mill Road, RD 3, Motueka, 7198, New Zealand
| | | | - Ross G Atkinson
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, 1142, New Zealand
| | - Niels J Nieuwenhuizen
- The New Zealand Institute for Plant and Food Research Ltd (PFR), Private Bag 92169, Auckland, 1142, New Zealand.
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30
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Habán M, Korczyk-Szabó J, Čerteková S, Ražná K. Lavandula Species, Their Bioactive Phytochemicals, and Their Biosynthetic Regulation. Int J Mol Sci 2023; 24:ijms24108831. [PMID: 37240177 DOI: 10.3390/ijms24108831] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 05/12/2023] [Accepted: 05/14/2023] [Indexed: 05/28/2023] Open
Abstract
Lavandula species are one of the most useful aromatic and medicinal plants and have great economic potential. The phytopharmaceutical contribution of the secondary metabolites of the species is unquestionable. Most recent studies have been focusing on the elucidation of the genetic background of secondary metabolite production in lavender species. Therefore, knowledge of not only genetic but especially epigenetic mechanisms for the regulation of secondary metabolites is necessary for the modification of those biosynthesis processes and the understanding of genotypic differences in the content and compositional variability of these products. The review discusses the genetic diversity of Lavandula species in relation to the geographic area, occurrence, and morphogenetic factors. The role of microRNAs in secondary-metabolites biosynthesis is described.
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Affiliation(s)
- Miroslav Habán
- Institute of Agronomic Sciences, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 94976 Nitra, Slovakia
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, 83232 Bratislava, Slovakia
| | - Joanna Korczyk-Szabó
- Institute of Agronomic Sciences, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 94976 Nitra, Slovakia
| | - Simona Čerteková
- Institute of Plant and Environmental Sciences, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 94976 Nitra, Slovakia
| | - Katarína Ražná
- Institute of Plant and Environmental Sciences, Faculty of Agrobiology and Food Resources, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 94976 Nitra, Slovakia
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31
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González-Hernández RA, Valdez-Cruz NA, Macías-Rubalcava ML, Trujillo-Roldán MA. Overview of fungal terpene synthases and their regulation. World J Microbiol Biotechnol 2023; 39:194. [PMID: 37169980 PMCID: PMC10175467 DOI: 10.1007/s11274-023-03635-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 04/28/2023] [Indexed: 05/13/2023]
Abstract
Terpenes and terpenoids are a group of isoprene-derived molecules that constitute the largest group of natural products and secondary metabolites produced by living things, with more than 25,000 compounds reported. These compounds are synthesized by enzymes called terpene synthases, which include several families of cyclases and enzymes. These are responsible for adding functional groups to cyclized structures. Fungal terpenoids are of great interest for their pharmacological properties; therefore, understanding the mechanisms that regulate their synthesis (regulation of the mevalonate pathway, regulation of gene expression, and availability of cofactors) is essential to direct their production. For this reason, this review addresses the detailed study of the biosynthesis of fungal terpenoids and their regulation by various physiological and environmental factors.
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Affiliation(s)
- Ricardo A González-Hernández
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, C.P. 04510, Ciudad de México, México.
- Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Ciudad de México, México.
| | - Norma A Valdez-Cruz
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, C.P. 04510, Ciudad de México, México
| | - Martha L Macías-Rubalcava
- Departamento de Productos Naturales, Instituto de Química, Universidad Nacional Autónoma de México (UNAM), Ciudad Universitaria, Delegación Coyoacán, 04510, Ciudad de México, México
| | - Mauricio A Trujillo-Roldán
- Departamento de Biología Molecular y Biotecnología, Instituto de Investigaciones Biomédicas, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, C.P. 04510, Ciudad de México, México.
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Di X, Ortega-Alarcon D, Kakumanu R, Iglesias-Fernandez J, Diaz L, Baidoo EEK, Velazquez-Campoy A, Rodríguez-Concepción M, Perez-Gil J. MEP pathway products allosterically promote monomerization of deoxy-D-xylulose-5-phosphate synthase to feedback-regulate their supply. PLANT COMMUNICATIONS 2023; 4:100512. [PMID: 36575800 DOI: 10.1016/j.xplc.2022.100512] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 12/11/2022] [Accepted: 12/22/2022] [Indexed: 05/11/2023]
Abstract
Isoprenoids are a very large and diverse family of metabolites required by all living organisms. All isoprenoids derive from the double-bond isomers isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP), which are produced by the methylerythritol 4-phosphate (MEP) pathway in bacteria and plant plastids. It has been reported that IPP and DMAPP feedback-regulate the activity of deoxyxylulose 5-phosphate synthase (DXS), a dimeric enzyme that catalyzes the main flux-controlling step of the MEP pathway. Here we provide experimental insights into the underlying mechanism. Isothermal titration calorimetry and dynamic light scattering approaches showed that IPP and DMAPP can allosterically bind to DXS in vitro, causing a size shift. In silico ligand binding site analysis and docking calculations identified a potential allosteric site in the contact region between the two monomers of the active DXS dimer. Modulation of IPP and DMAPP contents in vivo followed by immunoblot analyses confirmed that high IPP/DMAPP levels resulted in monomerization and eventual aggregation of the enzyme in bacterial and plant cells. Loss of the enzymatically active dimeric conformation allows a fast and reversible reduction of DXS activity in response to a sudden increase or decrease in IPP/DMAPP supply, whereas aggregation and subsequent removal of monomers that would otherwise be available for dimerization appears to be a more drastic response in the case of persistent IPP/DMAPP overabundance (e.g., by a blockage in their conversion to downstream isoprenoids). Our results represent an important step toward understanding the regulation of the MEP pathway and rational design of biotechnological endeavors aimed at increasing isoprenoid contents in microbial and plant systems.
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Affiliation(s)
- Xueni Di
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-Universitat Politècnica de València, 46022 Valencia, Spain; Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Campus UAB Bellaterra, 08193 Barcelona, Spain
| | - David Ortega-Alarcon
- Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Unit GBsC-CSIC-BIFI, Universidad de Zaragoza, 50009 Zaragoza, Spain; Departamento de Bioquímica y Biología Molecular y Celular, Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - Ramu Kakumanu
- Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608, USA; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | | | - Lucia Diaz
- Nostrum Biodiscovery SL, 08029 Barcelona, Spain
| | - Edward E K Baidoo
- Joint BioEnergy Institute, 5885 Hollis Street, Emeryville, CA 94608, USA; Biological Systems and Engineering Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - Adrian Velazquez-Campoy
- Institute for Biocomputation and Physics of Complex Systems (BIFI), Joint Unit GBsC-CSIC-BIFI, Universidad de Zaragoza, 50009 Zaragoza, Spain; Departamento de Bioquímica y Biología Molecular y Celular, Universidad de Zaragoza, 50009 Zaragoza, Spain; Instituto de Investigación Sanitaria de Aragón (IIS Aragon), 50009 Zaragoza, Spain; Centro de Investigación Biomédica en Red en el Área Temática de Enfermedades Hepáticas y Digestivas (CIBERehd), 28029 Madrid, Spain
| | - Manuel Rodríguez-Concepción
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-Universitat Politècnica de València, 46022 Valencia, Spain; Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Campus UAB Bellaterra, 08193 Barcelona, Spain.
| | - Jordi Perez-Gil
- Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Campus UAB Bellaterra, 08193 Barcelona, Spain.
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Chen EC, Freel Meyers CL. DXP Synthase Function in a Bacterial Metabolic Adaptation and Implications for Antibacterial Strategies. Antibiotics (Basel) 2023; 12:antibiotics12040692. [PMID: 37107054 PMCID: PMC10135061 DOI: 10.3390/antibiotics12040692] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/25/2023] [Accepted: 03/29/2023] [Indexed: 04/05/2023] Open
Abstract
Pathogenic bacteria possess a remarkable ability to adapt to fluctuating host environments and cause infection. Disturbing bacterial central metabolism through inhibition of 1-deoxy-d-xylulose 5-phosphate synthase (DXPS) has the potential to hinder bacterial adaptation, representing a new antibacterial strategy. DXPS functions at a critical metabolic branchpoint to produce the metabolite DXP, a precursor to pyridoxal-5-phosphate (PLP), thiamin diphosphate (ThDP) and isoprenoids presumed essential for metabolic adaptation in nutrient-limited host environments. However, specific roles of DXPS in bacterial adaptations that rely on vitamins or isoprenoids have not been studied. Here we investigate DXPS function in an adaptation of uropathogenic E. coli (UPEC) to d-serine (d-Ser), a bacteriostatic host metabolite that is present at high concentrations in the urinary tract. UPEC adapt to d-Ser by producing a PLP-dependent deaminase, DsdA, that converts d-Ser to pyruvate, pointing to a role for DXPS-dependent PLP synthesis in this adaptation. Using a DXPS-selective probe, butyl acetylphosphonate (BAP), and leveraging the toxic effects of d-Ser, we reveal a link between DXPS activity and d-Ser catabolism. We find that UPEC are sensitized to d-Ser and produce sustained higher levels of DsdA to catabolize d-Ser in the presence of BAP. In addition, BAP activity in the presence of d-Ser is suppressed by β-alanine, the product of aspartate decarboxylase PanD targeted by d-Ser. This BAP-dependent sensitivity to d-Ser marks a metabolic vulnerability that can be exploited to design combination therapies. As a starting point, we show that combining inhibitors of DXPS and CoA biosynthesis displays synergy against UPEC grown in urine where there is increased dependence on the TCA cycle and gluconeogenesis from amino acids. Thus, this study provides the first evidence for a DXPS-dependent metabolic adaptation in a bacterial pathogen and demonstrates how this might be leveraged for development of antibacterial strategies against clinically relevant pathogens.
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Affiliation(s)
- Eric C. Chen
- Department of Pharmacology and Molecular Sciences, The Johns Hopkins School of Medicine, Baltimore, MD 21201, USA
| | - Caren L. Freel Meyers
- Department of Pharmacology and Molecular Sciences, The Johns Hopkins School of Medicine, Baltimore, MD 21201, USA
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34
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Chen J, Tan J, Duan X, Wang Y, Wen J, Li W, Li Z, Wang G, Xu H. Plastidial engineering with coupled farnesyl diphosphate pool reconstitution and enhancement for sesquiterpene biosynthesis in tomato fruit. Metab Eng 2023; 77:41-52. [PMID: 36893914 DOI: 10.1016/j.ymben.2023.03.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 02/20/2023] [Accepted: 03/05/2023] [Indexed: 03/09/2023]
Abstract
Sesquiterpenes represent a large class of terpene compounds found in plants with broad applications such as pharmaceuticals and biofuels. The plastidial MEP pathway in ripening tomato fruit is naturally optimized to provide the 5-carbon isoprene building blocks of all terpenes for production of the tetraterpene pigment lycopene and other carotenoids, making it an excellent plant system to be engineered for production of high-value terpenoids. We reconstituted and enhanced the pool of sesquiterpene precursor farnesyl diphosphate (FPP) in plastids of tomato fruit by overexpressing the fusion gene DXS-FPPS encoding a fusion protein of 1-deoxy-D-xylulose 5-phosphate synthase (DXS) linked with farnesyl diphosphate synthase (originally called farnesyl pyrophosphate synthase, and abbreviated as FPPS) under the control of fruit-ripening specific polygalacturonase (PG) promoter concomitant with substantial reduction in lycopene content and large production of FPP-derived squalene. The supply of precursors achieved by the fusion gene expression can be harnessed by an engineered sesquiterpene synthase that is retargeted to plastid to engineer high-yield sesquiterpene production in tomato fruit, offering an effective production system for high-value sesquiterpene ingredients.
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Affiliation(s)
- Jing Chen
- School of Life Sciences, Chongqing University, Chongqing, 401331, China.
| | - Jing Tan
- School of Life Sciences, Chongqing University, Chongqing, 401331, China.
| | - Xinyu Duan
- School of Life Sciences, Chongqing University, Chongqing, 401331, China.
| | - Ying Wang
- School of Life Sciences, Chongqing University, Chongqing, 401331, China.
| | - Jing Wen
- School of Life Sciences, Chongqing University, Chongqing, 401331, China.
| | - Wei Li
- Shenzhen Key Laboratory of Agricultural Synthetic Biology, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120, China; Kunpeng Institute of Modern Agriculture at Foshan, Foshan, 528200, China.
| | - Zhengguo Li
- School of Life Sciences, Chongqing University, Chongqing, 401331, China.
| | - Guodong Wang
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Haiyang Xu
- School of Life Sciences, Chongqing University, Chongqing, 401331, China.
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35
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Liu X, Li X, Yang H, Yang R, Zhang D. Genome-Wide Characterization and Expression Profiling of ABA Biosynthesis Genes in a Desert Moss Syntrichia caninervis. PLANTS (BASEL, SWITZERLAND) 2023; 12:1114. [PMID: 36903974 PMCID: PMC10004953 DOI: 10.3390/plants12051114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/27/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
Syntrichia caninervis can survive under 80-90% protoplasmic water losses, and it is a model plant in desiccation tolerance research. A previous study has revealed that S. caninervis would accumulate ABA under dehydration stress, while the ABA biosynthesis genes in S. caninervis are still unknown. This study identified one ScABA1, two ScABA4s, five ScNCEDs, twenty-nine ScABA2s, one ScABA3, and four ScAAOs genes, indicating that the ABA biosynthesis genes were complete in S. caninervis. Gene location analysis showed that the ABA biosynthesis genes were evenly distributed in chromosomes but were not allocated to sex chromosomes. Collinear analysis revealed that ScABA1, ScNCED, and ScABA2 had homologous genes in Physcomitrella patens. RT-qPCR detection found that all of the ABA biosynthesis genes responded to abiotic stress; it further indicated that ABA plays an important role in S. caninervis. Moreover, the ABA biosynthesis genes in 19 representative plants were compared to study their phylogenetic and conserved motifs; the results suggested that the ABA biosynthesis genes were closely associated with plant taxa, but these genes had the same conserved domain in each plant. In contrast, there is a huge variation in the exon number between different plant taxa; it revealed that ABA biosynthesis gene structures are closely related to plant taxa. Above all, this study provides strong evidence demonstrating that ABA biosynthesis genes were conserved in the plant kingdom and deepens our understanding of the evolution of the phytohormone ABA.
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Affiliation(s)
- Xiujin Liu
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- Xinjiang Key Lab of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoshuang Li
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- Xinjiang Key Lab of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
| | - Honglan Yang
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- Xinjiang Key Lab of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
| | - Ruirui Yang
- Xinjiang Key Lab of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Daoyuan Zhang
- State Key Laboratory of Desert and Oasis Ecology, Key Laboratory of Ecological Safety and Sustainable Development in Arid Lands, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- Xinjiang Key Lab of Conservation and Utilization of Plant Gene Resources, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Turpan Eremophytes Botanical Garden, Chinese Academy of Sciences, Turpan 838008, China
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Zhang Z, Yu S, Zhang Z, Zhang J, Li H. Comparative Characterization of Fruit Volatiles and Volatile-Related Genes Expression of 'Benihoppe' Strawberry and Its Somaclonal Mutant. PLANTS (BASEL, SWITZERLAND) 2023; 12:1109. [PMID: 36903969 PMCID: PMC10005569 DOI: 10.3390/plants12051109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 02/23/2023] [Accepted: 02/28/2023] [Indexed: 06/18/2023]
Abstract
Somaclonal variations in tissue cultures can be used in plant breeding programs. However, it is still unclear whether somaclonal variations and their original parent have differences in volatile compounds, and the candidate genes which result in the differences in volatile compounds also need to be identified. In this study, we utilized the 'Benihoppe' strawberry and its somaclonal mutant 'Xiaobai', which has different fruit aromas compared with 'Benihoppe', as research materials. Using HS-SPME-GC-MS, 113 volatile compounds have been identified in the four developmental periods of 'Benihoppe' and 'Xiaobai'. Among them, the quantity and content of some unique esters in 'Xiaobai' were much higher than that in 'Benihoppe'. In addition, we found that the contents and odor activity values of ethyl isovalerate, ethyl hexanoate, ethyl butyrate, ethyl pentanoate, linalool, and nerolidol in the red fruit of 'Xiaobai' were much higher compared with 'Benihoppe', which may result from the significantly increased expression of FaLOX6, FaHPL, FaADH, FaAAT, FaAAT1, FaDXS, FaMCS, and FaHDR in 'Xiaobai'. However, the content of eugenol in 'Benihoppe' was higher than that in 'Xiaobai', which may result from the higher expression of FaEGS1a in 'Benihoppe' compared with 'Xiaobai'. The results provide insights into the somaclonal variations that affect the volatile compounds in strawberries and can be used for strawberry quality improvement.
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Affiliation(s)
- Zhuo Zhang
- Liaoning Key Laboratory of Strawberry Breeding and Cultivation, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, Shenyang 110866, China
| | - Shuang Yu
- Liaoning Key Laboratory of Strawberry Breeding and Cultivation, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, Shenyang 110866, China
| | - Zhihong Zhang
- Liaoning Key Laboratory of Strawberry Breeding and Cultivation, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, Shenyang 110866, China
- Analytical and Testing Center, Shenyang Agricultural University, Shenyang 110866, China
| | - Junxiang Zhang
- Liaoning Key Laboratory of Strawberry Breeding and Cultivation, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, Shenyang 110866, China
| | - He Li
- Liaoning Key Laboratory of Strawberry Breeding and Cultivation, College of Horticulture, Shenyang Agricultural University, Shenyang 110866, China
- Laboratory of Protected Horticulture (Shenyang Agricultural University), Ministry of Education, Shenyang 110866, China
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Jiang W, Sun J, Gao H, Tang Y, Wang C, Jiang Y, Zhang W, Xin F, Jiang M. Carotenoids production and genome analysis of a novel carotenoid producing Rhodococcus aetherivorans N1. Enzyme Microb Technol 2023; 164:110190. [PMID: 36603321 DOI: 10.1016/j.enzmictec.2022.110190] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/26/2022] [Accepted: 12/27/2022] [Indexed: 12/31/2022]
Abstract
Carotenoids are a series of natural pigments with unique structure and physiological functions. In this study, a novel Rhodococcus aetherivorans strain N1 was discovered, which can produce 6.4 mg/g carotenoids including β-carotene, zeaxanthin and isorenieratene from glucose. Moreover, strain N1 can directly produce 3.0 mg/g carotenoids from the undetoxified straw hydrolysate, representing the highest carotenoids production from the undetoxified lignocellulosic hydrolysate. The crude carotenoid extracts of strain N1 showed efficient free radical scavenging activity and stability. Strain N1 has complete methylerythritol 4-phosphate (MEP) pathway and related genes for carotenoid synthesis, especially the rare aromatic carotenoid of isorenieratene. Genomic comparison between strain N1 and other carotenoid producing Rhodococcus sp. strains showed the conservatism and universality of carotenoids synthesis gene. These results proved that R. aetherivorans strain N1 can serve as a promising producer for the industrialization of carotenoid production.
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Affiliation(s)
- Wankui Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Jingxiang Sun
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Haiyan Gao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Yunhan Tang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Chao Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Yujia Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, PR China
| | - Wenming Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, PR China.
| | - Fengxue Xin
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, PR China.
| | - Min Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, PR China
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Comparative Transcriptome Analysis Provides Insights into the Molecular Mechanism Underlying the Effect of MeJA Treatment on the Biosynthesis of Saikosaponins in Bupleurum chinense DC. Life (Basel) 2023; 13:life13020563. [PMID: 36836920 PMCID: PMC9960380 DOI: 10.3390/life13020563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 02/14/2023] [Accepted: 02/14/2023] [Indexed: 02/19/2023] Open
Abstract
Bupleurum chinense DC. is a well-known traditional Chinese medicinal plant that produces saikosaponins (SSs), which possess hepatoprotective, antipyretic, and anti-inflammatory activities. Methyl jasmonate (MeJA) is a signalling phytohormone that can increase the accumulation of SSs in the root of Bupleurum plants. However, the molecular understanding of MeJA-mediated SS biosynthesis is not clear. Therefore, it is necessary to explore the molecular mechanism underlying the response of B. chinense DC. to MeJA in roots. In this study, we performed comparative transcriptome analysis of B. chinense DC. roots with different MeJA treatment times. In total, 104,057 unigenes were identified, of which 4053 were differentially expressed genes (DEGs). Most of the DEGs were downregulated after MeJA treatment, and GO enrichment analysis showed that they were mainly related to biological processes involved in stress responses and development. A total of 88 DEGs encoding enzymes known to be involved in the SS synthesis pathway were found, and most were significantly downregulated within 24 h. Based on the DEGs, 99 transcription factors (TFs) belonging to the AP2/ERF, WRKY, bZIP, ZFP, and bHLH families with different expression patterns were also identified. Further integrated analysis indicated that 20 DEGs involved in the SS synthesis pathway and 12 DEGs encoding TFs presented strong correlations with the SS contents, and these DEGs may be critical for the biosynthesis and regulation of SSs. These findings will be critical for further study of the response of B. chinense DC. to MeJA for SS biosynthesis.
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Widely Targeted Metabolomics Reveals Metabolite Diversity in Jalapeño and Serrano Chile Peppers ( Capsicum annuum L.). Metabolites 2023; 13:metabo13020288. [PMID: 36837906 PMCID: PMC9967468 DOI: 10.3390/metabo13020288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/12/2023] [Accepted: 02/13/2023] [Indexed: 02/18/2023] Open
Abstract
Chile peppers (Capsicum annuum L.) are good sources of vitamins and minerals that can be included in the diet to mitigate nutritional deficiencies. Metabolomics examines the metabolites involved in biological pathways to understand the genes related to complex phenotypes such as the nutritional quality traits. The current study surveys the different metabolites present in jalapeño ('NuMex Pumpkin Spice') and serrano ('NuMex LotaLutein') type chile peppers grown in New Mexico using a widely targeted metabolomics approach, with the 'NuMex LotaLutein' as control. A total of 1088 different metabolites were detected, where 345 metabolites were differentially expressed; 203 (59%) were downregulated and 142 (41%) were upregulated (i.e., relative metabolite content is higher in 'NuMex Pumpkin Spice'). The upregulated metabolites comprised mostly of phenolic acids (42), flavonoids (22), and organic acids (13). Analyses of principal component (PC) and orthogonal partial least squares demonstrated clustering based on cultivars, where at least 60% of variation was attributed to the first two PCs. Pathway annotation identified 89 metabolites which are involved in metabolic pathways and the biosynthesis of secondary metabolites. Altogether, metabolomics provided insights into the different metabolites present which can be targeted for breeding and selection towards the improvement of nutritional quality traits in Capsicum.
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Sripinyowanich S, Petchsri S, Tongyoo P, Lee TK, Lee S, Cho WK. Comparative Transcriptomic Analysis of Genes in the 20-Hydroxyecdysone Biosynthesis in the Fern Microsorum scolopendria towards Challenges with Foliar Application of Chitosan. Int J Mol Sci 2023; 24:ijms24032397. [PMID: 36768717 PMCID: PMC9916870 DOI: 10.3390/ijms24032397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 01/18/2023] [Accepted: 01/22/2023] [Indexed: 01/27/2023] Open
Abstract
Microsorum scolopendria is an important medicinal plant that belongs to the Polypodiaceae family. In this study, we analyzed the effects of foliar spraying of chitosan on growth promotion and 20-hydroxyecdysone (20E) production in M. scolopendria. Treatment with chitosan at a concentration of 50 mg/L in both young and mature sterile fronds induced the highest increase in the amount of accumulated 20E. Using RNA sequencing, we identified 3552 differentially expressed genes (DEGs) in response to chitosan treatment. The identified DEGs were associated with 236 metabolic pathways. We identified several DEGs involved in the terpenoid and steroid biosynthetic pathways that might be associated with secondary metabolite 20E biosynthesis. Eight upregulated genes involved in cholesterol and phytosterol biosynthetic pathway, five upregulated genes related to the methylerythritol 4-phosphate (MEP) and mevalonate (MVA) pathways, and several DEGs that are members of cytochrome P450s and ABC transporters were identified. Quantitative real-time RT-PCR confirmed the results of RNA-sequencing. Taken together, we showed that chitosan treatment increased plant dry weight and 20E accumulation in M. scolopendria. RNA-sequencing and DEG analyses revealed key enzymes that might be related to the production of the secondary metabolite 20E in M. scolopendria.
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Affiliation(s)
- Siriporn Sripinyowanich
- Department of Botany, Faculty of Liberal Arts and Science, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand
| | - Sahanat Petchsri
- Department of Botany, Faculty of Liberal Arts and Science, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand
| | - Pumipat Tongyoo
- Center for Agricultural Biotechnology, Kasetsart University, Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand
- Center of Excellence on Agricultural Biotechnology: (AG-BIO/MHESI), Bangkok 10900, Thailand
| | - Taek-Kyun Lee
- Risk Assessment Research Center, Korea Institute of Ocean Science & Technology, Geoje 53201, Republic of Korea
| | - Sukchan Lee
- Department of Integrative Biotechnology, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Correspondence: (S.L.); (W.K.C.)
| | - Won Kyong Cho
- College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Correspondence: (S.L.); (W.K.C.)
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Li G, Liu J, Zhang H, Jia L, Liu Y, Li J, Zhou S, Wang P, Tan M, Shao J. Volatile metabolome and floral transcriptome analyses reveal the volatile components of strongly fragrant progeny of Malus × robusta. FRONTIERS IN PLANT SCIENCE 2023; 14:1065219. [PMID: 36743501 PMCID: PMC9895795 DOI: 10.3389/fpls.2023.1065219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 01/02/2023] [Indexed: 06/18/2023]
Abstract
Floral fragrance is an important trait that contributes to the ornamental properties and pollination of crabapple. However, research on the physiological and molecular biology of the floral volatile compounds of crabapple is rarely reported. In this study, metabolomic and transcriptomic analyses of the floral volatile compounds of standard Malus robusta flowers (Mr), and progeny with strongly and weakly fragrant flowers (SF and WF, respectively), were conducted. Fifty-six floral volatile compounds were detected in the plant materials, mainly comprising phenylpropane/benzene ring-type compounds, fatty acid derivatives, and terpene compounds. The volatile contents were significantly increased before the early flowering stage (ES), and the contents of SF flowers were twice those of WF and Mr flowers. Odor activity values were determined for known fragrant volatiles and 10-11 key fragrant volatiles were identified at the ES. The predominant fragrant volatiles were methyl benzoate, linalool, leaf acetate, and methyl anthranilate. In the petals, stamens, pistil, and calyx of SF flowers, 26 volatiles were detected at the ES, among which phenylpropane/benzene ring-type compounds were the main components accounting for more than 75% of the total volatile content. Functional analysis of transcriptome data revealed that the phenylpropanoid biosynthesis pathway was significantly enriched in SF flowers. By conducting combined analyses between volatiles and differentially expressed genes, transcripts of six floral scent-related genes were identified and were associated with the contents of the key fragrant volatiles, and other 23 genes were potentially correlated with the key volatile compounds. The results reveal possible mechanisms for the emission of strong fragrance by SF flowers, and provide a foundation for improvement of the floral fragrance and development of new crabapple cultivars.
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Affiliation(s)
- Guofang Li
- College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Jia Liu
- College of Horticulture, Hebei Agricultural University, Baoding, China
| | - He Zhang
- College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Linguang Jia
- Changli Institute of Pomology, Hebei Academy of Agricultural and Forestry Science, Changli, China
| | - Youxian Liu
- College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Jiuyang Li
- College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Shiwei Zhou
- College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Pengjuan Wang
- College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Ming Tan
- College of Horticulture, Hebei Agricultural University, Baoding, China
| | - Jianzhu Shao
- College of Horticulture, Hebei Agricultural University, Baoding, China
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Morelli L, Rodriguez-Concepcion M. Open avenues for carotenoid biofortification of plant tissues. PLANT COMMUNICATIONS 2023; 4:100466. [PMID: 36303429 PMCID: PMC9860184 DOI: 10.1016/j.xplc.2022.100466] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/18/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
Plant carotenoids are plastidial isoprenoids that function as photoprotectants, pigments, and precursors of apocarotenoids such as the hormones abscisic acid and strigolactones. Humans do not produce carotenoids but need to obtain them from their diet as precursors of retinoids, including vitamin A. Carotenoids also provide numerous other health benefits. Multiple attempts to improve the carotenoid profile of different crops have been carried out by manipulating carotenoid biosynthesis, degradation, and/or storage. Here, we will focus on open questions and emerging subjects related to the use of biotechnology for carotenoid biofortification. After impressive achievements, new efforts should be directed to extend the use of genome-editing technologies to overcome regulatory constraints and improve consumer acceptance of the carotenoid-enriched products. Another challenge is to prevent off-target effects like those resulting from altered hormone levels and metabolic homeostasis. Research on biofortification of green tissues should also look for new ways to deal with the negative impact that altered carotenoid contents may have on photosynthesis. Once a carotenoid-enriched product has been obtained, additional effort should be devoted to confirming that carotenoid intake from the engineered food is also improved. This work involves ensuring post-harvest stability and assessing bioaccessibility of the biofortified product to confirm that release of carotenoids from the food matrix has not been negatively affected. Successfully addressing these challenges will ensure new milestones in carotenoid biotechnology and biofortification.
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Affiliation(s)
- Luca Morelli
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-Universitat Politècnica de València, 46022 Valencia, Spain
| | - Manuel Rodriguez-Concepcion
- Institute for Plant Molecular and Cell Biology (IBMCP), CSIC-Universitat Politècnica de València, 46022 Valencia, Spain.
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Carr S, Buan NR. Insights into the biotechnology potential of Methanosarcina. Front Microbiol 2022; 13:1034674. [PMID: 36590411 PMCID: PMC9797515 DOI: 10.3389/fmicb.2022.1034674] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 10/28/2022] [Indexed: 12/23/2022] Open
Abstract
Methanogens are anaerobic archaea which conserve energy by producing methane. Found in nearly every anaerobic environment on earth, methanogens serve important roles in ecology as key organisms of the global carbon cycle, and in industry as a source of renewable biofuels. Environmentally, methanogenic archaea play an essential role in the reintroducing unavailable carbon to the carbon cycle by anaerobically converting low-energy, terminal metabolic degradation products such as one and two-carbon molecules into methane which then returns to the aerobic portion of the carbon cycle. In industry, methanogens are commonly used as an inexpensive source of renewable biofuels as well as serving as a vital component in the treatment of wastewater though this is only the tip of the iceberg with respect to their metabolic potential. In this review we will discuss how the efficient central metabolism of methanoarchaea could be harnessed for future biotechnology applications.
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Affiliation(s)
| | - Nicole R. Buan
- Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, NE, United States
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Xu T, Zhang J, Liu Y, Zhang Q, Li W, Zhang Y, Wu M, Chen T, Ding D, Wang W, Zhang Z. Exon skipping in IspE Gene is associated with abnormal chloroplast development in rice albino leaf 4 mutant. FRONTIERS IN PLANT SCIENCE 2022; 13:986678. [PMID: 36426160 PMCID: PMC9678938 DOI: 10.3389/fpls.2022.986678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
The formation of leaf color largely depends on the components of pigment accumulation in plastids, which are involved in chloroplast development and division. Here, we isolated and characterized the rice albino leaf 4 (al4) mutant, which exhibited an albino phenotype and eventually died at the three-leaf stage. The chloroplasts in al4 mutant were severely damaged and unable to form intact thylakoid structure. Further analysis revealed that the candidate gene encodes 4-diphosphocytidyl-2-C-methyl-D-erythritol kinase (IspE), which participates in the methylerythritol phosphate (MEP) pathway of isoprenoid biosynthesis. We further demonstrated that the mutation at the exon-intron junction site cause alternative splicing factors fail to distinguish the origin of the GT-AG intron, leading to exon skipping and producing a truncated OsIspE in the al4 mutant. Notably, disruption of OsIspE led to the reduced expression of chloroplast-associated genes, including chloroplast biosynthetic and translation related genes and photosynthetic associated nuclear genes (PhANGs). In summary, these findings reveal that OsIspE plays a crucial role in chloroplast biogenesis and provides novel insights into the function of CMK during chloroplast development in rice.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Wenyi Wang
- *Correspondence: Zemin Zhang, ; Wenyi Wang,
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Mao Y, Chen H, Zhao J, Li Y, Feng L, Yang Y, Zhang Y, Wei P, Hou D. Molecular cloning, functional characterization and expression of the β-amyrin synthase gene involved in saikosaponin biosynthesis in Bupleurum chinense DC. JOURNAL OF PLANT BIOCHEMISTRY AND BIOTECHNOLOGY 2022; 32:284-295. [PMID: 36160316 PMCID: PMC9483273 DOI: 10.1007/s13562-022-00804-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 07/23/2022] [Indexed: 05/24/2023]
Abstract
Bupleurum chinense DC. is a commonly used plant in traditional Chinese medicine, and saikosaponins(SSs) are the main active oleanane-typetriterpene saponins in B. chinense. β-Amyrin synthase (β-AS) is an important enzyme in oleanane-type triterpenoid saponin synthesis, but its role in saikosaponin synthesis has rarely been studied. Here, the putative β-AS gene BcBAS1(Accession No.ON890382) selected according to metabolomic and transcriptomic analyses was cloned and functionally characterized by heterologous expression in Escherichia coli and Pichia pastoris, and its subcellular localization and expression patterns were examined. The molecular weight of the BcBAS1 recombinant protein was approximately 87 kDa, and this protein could catalyse the production of β-amyrin, the precursor of SSs. Furthermore, BcBAS1 was located in the cytosol, and relative expression in four tissues of the four genotypes was positively correlated with SSa and SSd contents. Our results indicate that BcBAS1 is a β-AS gene and may play an important role in saikosaponin biosynthesis and regulation. This study sheds light on the role of β-AS genes in the synthesis of SSs and provides insights for the metabolic engineering of SSs.
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Affiliation(s)
- Yanping Mao
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010 Mianyang, China
- College of Life Science and Biotechnology, Mianyang Teachers’ College, 621000 Mianyang, China
| | - Hua Chen
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010 Mianyang, China
| | - Jun Zhao
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010 Mianyang, China
| | - Yuchan Li
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010 Mianyang, China
| | - Liang Feng
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010 Mianyang, China
| | - Yuping Yang
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010 Mianyang, China
| | - Yiguan Zhang
- Sichuan Institute for Translational Chinese Medicine, 610041 Chengdu, China
| | - Ping Wei
- Sichuan Institute for Translational Chinese Medicine, 610041 Chengdu, China
| | - Dabin Hou
- School of Life Science and Engineering, Southwest University of Science and Technology, 621010 Mianyang, China
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Zhang Y, Yang L, Yang J, Hu H, Wei G, Cui J, Xu J. Transcriptome and Metabolome Analyses Reveal Differences in Terpenoid and Flavonoid Biosynthesis in Cryptomeria fortunei Needles Across Different Seasons. FRONTIERS IN PLANT SCIENCE 2022; 13:862746. [PMID: 35937363 PMCID: PMC9355645 DOI: 10.3389/fpls.2022.862746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 06/20/2022] [Indexed: 06/15/2023]
Abstract
Cryptomeria fortunei (Chinese cedar) has outstanding medicinal value due to its abundant flavonoid and terpenoid contents. The metabolite contents of C. fortunei needles differ across different seasons. However, the biosynthetic mechanism of these differentially synthesized metabolites (DSMs) is poorly understood. To improve our understanding of this process, we performed integrated non-targeted metabolomic liquid chromatography and gas chromatography mass spectrometry (LC-MS and GC-MS), and transcriptomic analyses of summer and winter needles. In winter, the C. fortunei needle ultrastructure was damaged, and the chlorophyll content and F v/F m were significantly (p < 0.05) reduced. Based on GC-MS and LC-MS, we obtained 106 and 413 DSMs, respectively; based on transcriptome analysis, we obtained a total of 41.17 Gb of clean data and assembled 33,063 unigenes, including 14,057 differentially expressed unigenes (DEGs). Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses showed that these DSMs/DEGs were significantly (p < 0.05) enriched in many biosynthesis pathways, such as terpenoids, photosynthates, and flavonoids. Integrated transcriptomic and metabonomic analyses showed that seasonal changes have the greatest impact on photosynthesis pathways, followed by terpenoid and flavonoid biosynthesis pathways. In summer Chinese cedar (SCC) needles, DXS, DXR, and ispH in the 2-methyl-pentaerythritol 4-phosphate (MEP) pathway and GGPS were highly expressed and promoted the accumulation of terpenoids, especially diterpenoids. In winter Chinese cedar (WCC) needles, 9 genes (HCT, CHS, CHI, F3H, F3'H, F3'5'H, FLS, DFR, and LAR) involved in flavonoid biosynthesis were highly expressed and promoted flavonoid accumulation. This study broadens our understanding of the metabolic and transcriptomic changes in C. fortunei needles caused by seasonal changes and provides a reference regarding the adaptive mechanisms of C. fortunei and the extraction of its metabolites.
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Genetic and Biochemical Aspects of Floral Scents in Roses. Int J Mol Sci 2022; 23:ijms23148014. [PMID: 35887360 PMCID: PMC9321236 DOI: 10.3390/ijms23148014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 07/15/2022] [Accepted: 07/18/2022] [Indexed: 12/12/2022] Open
Abstract
Floral scents possess high ornamental and economic values to rose production in the floricultural industry. In the past two decades, molecular bases of floral scent production have been studied in the rose as well as their genetic inheritance. Some significant achievements have been acquired, such as the comprehensive rose genome and the finding of a novel geraniol synthase in plants. In this review, we summarize the composition of floral scents in modern roses, focusing on the recent advances in the molecular mechanisms of floral scent production and emission, as well as the latest developments in molecular breeding and metabolic engineering of rose scents. It could provide useful information for both studying and improving the floral scent production in the rose.
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Song Y, Zhou J, Zhang Y, Zhao Y, Wang X, Hu T, Tong Y, Huang L, Gao W. Overexpression of TwSQS, TwSE, and TwOSC Regulates Celastrol Accumulation in Cambial Meristematic Cells and Dedifferentiated Cells. FRONTIERS IN PLANT SCIENCE 2022; 13:926715. [PMID: 35845629 PMCID: PMC9284119 DOI: 10.3389/fpls.2022.926715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
Squalene synthase (SQS), squalene epoxidase (SE), and oxidosqualene cyclase (OSC) are encoding enzymes in downstream biosynthetic pathway of triterpenoid in plants, but the relationship between three genes and celastrol accumulation in Tripterygium wilfordii still remains unknown. Gene transformation system in plant can be used for studying gene function rapidly. However, there is no report on the application of cambial meristematic cells (CMCs) and dedifferentiated cells (DDCs) in genetic transformation systems. Our aim was to study the effects of individual overexpression of TwSQS, TwSE, and TwOSC on terpenoid accumulation and biosynthetic pathway related gene expression through CMCs and DDCs systems. Overexpression vectors of TwSQS, TwSE, and TwOSC were constructed by Gateway technology and transferred into CMCs and DDCs by gene gun. After overexpression, the content of celastrol was significantly increased in CMCs compared with the control group. However, there was no significant increment of celastrol in DDCs. Meanwhile, the relative expression levels of TwSQS, TwSE, TwOSC, and terpenoid biosynthetic pathway related genes were detected. The relative expression levels of TwSQS, TwSE, and TwOSC were increased compared with the control group in both CMCs and DDCs, while the pathway-related genes displayed different expression trends. Therefore, it was verified in T. wilfordii CMCs that overexpression of TwSQS, TwSE, and TwOSC increased celastrol accumulation and had different effects on the expression of related genes in terpenoid biosynthetic pathway, laying a foundation for further elucidating the downstream biosynthetic pathway of celastrol through T. wilfordii CMCs system.
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Affiliation(s)
- Yadi Song
- Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Jiawei Zhou
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Yifeng Zhang
- Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Yujun Zhao
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xiujuan Wang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Tianyuan Hu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
| | - Yuru Tong
- School of Pharmaceutical Sciences, Capital Medical University, Beijing, China
| | - Luqi Huang
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
| | - Wei Gao
- Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
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Tian L, Shi J, Yang L, Wei A. Molecular Cloning and Functional Analysis of DXS and FPS Genes from Zanthoxylum bungeanum Maxim. Foods 2022; 11:foods11121746. [PMID: 35741944 PMCID: PMC9223008 DOI: 10.3390/foods11121746] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 06/10/2022] [Accepted: 06/13/2022] [Indexed: 02/04/2023] Open
Abstract
Zanthoxylum bungeanum Maxim. (Z. bungeanum) has attracted attention for its rich aroma. The aroma of Z. bungeanum is mainly volatile terpenes synthesized by plant terpene metabolic pathways. However, there is little information on Z. bungeanum terpene metabolic gene. In this study, the coding sequence of 1-deoxy-D-xylulose-5-phosphate synthase (DXS) and farnesyl pyrophosphate synthase (FPS) were cloned from Z. bungeanum cv. 'Fengxiandahongpao.' ZbDXS and ZbFPS genes from Z. bungeanum with CDS lengths of 2172 bp and 1029 bp, respectively. The bioinformatics results showed that Z. bungeanum was closely related to citrus, and it was deduced that ZbFPS were hydrophilic proteins without the transmembrane domain. Subcellular localization prediction indicated that ZbDXS was most likely to be located in chloroplasts, and ZbFPS was most likely to be in mitochondria. Meanwhile, the 3D protein structure showed that ZbDXS and ZbFPS were mainly composed of α-helices, which were folded into a single domain. In vitro enzyme activity experiments showed that purified proteins ZbDXS and ZbFPS had the functions of DXS enzyme and FPS enzyme. Transient expression of ZbDXS and ZbFPS in tobacco significantly increased tobacco's terpene content. Moreover, ZbDXS and ZbFPS were expressed in different tissues of Z. bungeanum, and the relative expression of the two genes was the highest in fruits. Therefore, this suggests that ZbDXS and ZbFPS are positively related to terpene synthesis. This study could provide reference genes for improving Z. bungeanum breeding as well as for the Rutaceae research.
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Affiliation(s)
- Lu Tian
- College of Forestry, Northwest A&F University, Yangling, Xianyang 712100, China; (L.T.); (J.S.); (L.Y.)
- Research Centre for Engineering and Technology of Zanthoxylum State Forestry Administration, Yangling, Xianyang 712100, China
| | - Jingwei Shi
- College of Forestry, Northwest A&F University, Yangling, Xianyang 712100, China; (L.T.); (J.S.); (L.Y.)
- Research Centre for Engineering and Technology of Zanthoxylum State Forestry Administration, Yangling, Xianyang 712100, China
| | - Lin Yang
- College of Forestry, Northwest A&F University, Yangling, Xianyang 712100, China; (L.T.); (J.S.); (L.Y.)
| | - Anzhi Wei
- College of Forestry, Northwest A&F University, Yangling, Xianyang 712100, China; (L.T.); (J.S.); (L.Y.)
- Research Centre for Engineering and Technology of Zanthoxylum State Forestry Administration, Yangling, Xianyang 712100, China
- Correspondence: ; Tel.: +86-029-8708-2211
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Herrscher V, Witjaksono C, Buchotte M, Ferret C, Massicot F, Vasse J, Borel F, Behr J, Seemann M. Irreversible Inhibition of IspG, a Target for the Development of New Antimicrobials, by a 2‐Vinyl Analogue of its MEcPP Substrate. Chemistry 2022; 28:e202200241. [DOI: 10.1002/chem.202200241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Vivien Herrscher
- Univ. Reims Champagne-Ardenne ICMR, CNRS UMR 7312 51687 Reims Cedex 2 France
| | - Clea Witjaksono
- Equipe Chimie Biologique et Applications Thérapeutiques Institut de Chimie de Strasbourg UMR 7177 Université de Strasbourg/CNRS 4, rue Blaise Pascal 67070 Strasbourg France
| | - Marie Buchotte
- Univ. Reims Champagne-Ardenne ICMR, CNRS UMR 7312 51687 Reims Cedex 2 France
| | - Claire Ferret
- Equipe Chimie Biologique et Applications Thérapeutiques Institut de Chimie de Strasbourg UMR 7177 Université de Strasbourg/CNRS 4, rue Blaise Pascal 67070 Strasbourg France
| | - Fabien Massicot
- Univ. Reims Champagne-Ardenne ICMR, CNRS UMR 7312 51687 Reims Cedex 2 France
| | - Jean‐Luc Vasse
- Univ. Reims Champagne-Ardenne ICMR, CNRS UMR 7312 51687 Reims Cedex 2 France
| | - Franck Borel
- Univ. Grenoble Alpes, CEA, CNRS, IBS 38000 Grenoble France
| | - Jean‐Bernard Behr
- Univ. Reims Champagne-Ardenne ICMR, CNRS UMR 7312 51687 Reims Cedex 2 France
| | - Myriam Seemann
- Equipe Chimie Biologique et Applications Thérapeutiques Institut de Chimie de Strasbourg UMR 7177 Université de Strasbourg/CNRS 4, rue Blaise Pascal 67070 Strasbourg France
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