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Jiang P, Wang Y, Zhang Y, Fei J, Rong X, Peng J, Yin L, Luo G. Intercropping enhances maize growth and nutrient uptake by driving the link between rhizosphere metabolites and microbiomes. THE NEW PHYTOLOGIST 2024; 243:1506-1521. [PMID: 38874414 DOI: 10.1111/nph.19906] [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: 10/24/2023] [Accepted: 05/30/2024] [Indexed: 06/15/2024]
Abstract
Intercropping leads to different plant roots directly influencing belowground processes and has gained interest for its promotion of increased crop yields and resource utilization. However, the precise mechanisms through which the interactions between rhizosphere metabolites and the microbiome contribute to plant production remain ambiguous, thus impeding the understanding of the yield-enhancing advantages of intercropping. This study conducted field experiments (initiated in 2013) and pot experiments, coupled with multi-omics analysis, to investigate plant-metabolite-microbiome interactions in the rhizosphere of maize. Field-based data revealed significant differences in metabolite and microbiome profiles between the rhizosphere soils of maize monoculture and intercropping. In particular, intercropping soils exhibited higher microbial diversity and metabolite chemodiversity. The chemodiversity and composition of rhizosphere metabolites were significantly related to the diversity, community composition, and network complexity of soil microbiomes, and this relationship further impacted plant nutrient uptake. Pot-based findings demonstrated that the exogenous application of a metabolic mixture comprising key components enriched by intercropping (soyasapogenol B, 6-hydroxynicotinic acid, lycorine, shikimic acid, and phosphocreatine) significantly enhanced root activity, nutrient content, and biomass of maize in natural soil, but not in sterilized soil. Overall, this study emphasized the significance of rhizosphere metabolite-microbe interactions in enhancing yields in intercropping systems. It can provide new insights into rhizosphere controls within intensive agroecosystems, aiming to enhance crop production and ecosystem services.
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Affiliation(s)
- Pan Jiang
- College of Resources, Hunan Agricultural University, Changsha, 410128, China
| | - Yizhe Wang
- College of Resources, Hunan Agricultural University, Changsha, 410128, China
| | - Yuping Zhang
- College of Resources, Hunan Agricultural University, Changsha, 410128, China
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Changsha, 410128, China
- Hunan Provincial Key Laboratory of Farmland Pollution Control and Agricultural Resources Use, Changsha, 410128, China
| | - Jiangchi Fei
- College of Resources, Hunan Agricultural University, Changsha, 410128, China
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Changsha, 410128, China
- Hunan Provincial Key Laboratory of Farmland Pollution Control and Agricultural Resources Use, Changsha, 410128, China
| | - Xiangmin Rong
- College of Resources, Hunan Agricultural University, Changsha, 410128, China
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Changsha, 410128, China
- Hunan Provincial Key Laboratory of Farmland Pollution Control and Agricultural Resources Use, Changsha, 410128, China
| | - Jianwei Peng
- College of Resources, Hunan Agricultural University, Changsha, 410128, China
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Changsha, 410128, China
- Hunan Provincial Key Laboratory of Farmland Pollution Control and Agricultural Resources Use, Changsha, 410128, China
| | - Lichu Yin
- College of Resources, Hunan Agricultural University, Changsha, 410128, China
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Changsha, 410128, China
| | - Gongwen Luo
- College of Resources, Hunan Agricultural University, Changsha, 410128, China
- National Engineering Laboratory for Efficient Utilization of Soil and Fertilizer Resources, Changsha, 410128, China
- Hunan Provincial Key Laboratory of Farmland Pollution Control and Agricultural Resources Use, Changsha, 410128, China
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Zhou M, Fan J, Gao Y, Zheng C, Xu Y, Jia L, An X, Chen Z. Identification and analysis of UGT genes associated with triterpenoid saponin in soapberry (Sapindus mukorossi Gaertn.). BMC PLANT BIOLOGY 2024; 24:588. [PMID: 38902602 PMCID: PMC11191301 DOI: 10.1186/s12870-024-05281-4] [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: 02/08/2024] [Accepted: 06/10/2024] [Indexed: 06/22/2024]
Abstract
BACKGROUND Soapberry (Sapindus mukorossi) is an economically important multifunctional tree species. Triterpenoid saponins have many functions in soapberry. However, the types of uridine diphosphate (UDP) glucosyltransferases (UGTs) involved in the synthesis of triterpenoid saponins in soapberry have not been clarified. RESULTS In this study, 42 SmUGTs were identified in soapberry, which were unevenly distributed on 12 chromosomes and had sequence lengths of 450 bp to 1638 bp, with an average of 1388 bp. The number of amino acids in SmUGTs was 149 to 545, with an average of 462. Most SmUGTs were acidic and hydrophilic unstable proteins, and their secondary structures were mainly α-helices and random coils. All had conserved UDPGT and PSPG-box domains. Phylogenetic analysis divided them into four subclasses, which glycosylated different carbon atoms. Prediction of cis-acting elements suggested roles of SmUGTs in plant development and responses to environmental stresses. The expression patterns of SmUGTs differed according to the developmental stage of fruits, as determined by transcriptomics and RT-qPCR. Co-expression network analysis of SmUGTs and related genes/transcription factors in the triterpenoid saponin synthesis pathway was also performed. The results indicated potential roles for many transcription factors, such as SmERFs, SmGATAs and SmMYBs. A correlation analysis showed that 42 SmUGTs were crucial in saponin synthesis in soapberry. CONCLUSIONS Our findings suggest optimal targets for manipulating glycosylation in soapberry triterpenoid saponin biosynthesis; they also provide a theoretical foundation for further evaluation of the functions of SmUGTs and analyses of their biosynthetic mechanisms.
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Affiliation(s)
- Mingzhu Zhou
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Jialin Fan
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Yuhan Gao
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Chunyuan Zheng
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Yuanyuan Xu
- College of Forestry, Guangxi University, Nanning, 530004, China
| | - Liming Jia
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China
| | - Xinmin An
- National Engineering Research Center of Tree Breeding and Ecological Restoration, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing, 100083, China
| | - Zhong Chen
- State Key Laboratory for Efficient Production of Forest Resources, Key Laboratory of Silviculture and Conservation of the Ministry of Education, Ministry of Education of Engineering Research Centre for Forest and Grassland Carbon Sequestration, College of Forestry, Beijing Forestry University, P. O. Box 407, No.35 Qinghua East Road, Haidian District, Beijing, 100083, China.
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3
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Chen R, Meng S, Wang A, Jiang F, Yuan L, Lei L, Wang H, Fan W. The genomes of seven economic Caesalpinioideae trees provide insights into polyploidization history and secondary metabolite biosynthesis. PLANT COMMUNICATIONS 2024:100944. [PMID: 38733080 DOI: 10.1016/j.xplc.2024.100944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/29/2024] [Accepted: 05/08/2024] [Indexed: 05/13/2024]
Abstract
The Caesalpinioideae subfamily contains many well-known trees that are important for economic sustainability and human health, but a lack of genomic resources has hindered their breeding and utilization. Here, we present chromosome-level reference genomes for the two food and industrial trees Gleditsia sinensis (921 Mb) and Biancaea sappan (872 Mb), the three shade and ornamental trees Albizia julibrissin (705 Mb), Delonix regia (580 Mb), and Acacia confusa (566 Mb), and the two pioneer and hedgerow trees Leucaena leucocephala (1338 Mb) and Mimosa bimucronata (641 Mb). Phylogenetic inference shows that the mimosoid clade has a much higher evolutionary rate than the other clades of Caesalpinioideae. Macrosynteny comparison suggests that the fusion and breakage of an unstable chromosome are responsible for the difference in basic chromosome number (13 or 14) for Caesalpinioideae. After an ancient whole-genome duplication (WGD) shared by all Caesalpinioideae species (CWGD, ∼72.0 million years ago [MYA]), there were two recent successive WGD events, LWGD-1 (16.2-19.5 MYA) and LWGD-2 (7.1-9.5 MYA), in L. leucocephala. Thereafter, ∼40% gene loss and genome-size contraction have occurred during the diploidization process in L. leucocephala. To investigate secondary metabolites, we identified all gene copies involved in mimosine metabolism in these species and found that the abundance of mimosine biosynthesis genes in L. leucocephala largely explains its high mimosine production. We also identified the set of all potential genes involved in triterpenoid saponin biosynthesis in G. sinensis, which is more complete than that based on previous transcriptome-derived unigenes. Our results and genomic resources will facilitate biological studies of Caesalpinioideae and promote the utilization of valuable secondary metabolites.
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Affiliation(s)
- Rong Chen
- College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China; Guangdong Laboratory for Lingnan Modern Agriculture (Shenzhen Branch), Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518120, China
| | - Sihan Meng
- Guangdong Laboratory for Lingnan Modern Agriculture (Shenzhen Branch), Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518120, China
| | - Anqi Wang
- Guangdong Laboratory for Lingnan Modern Agriculture (Shenzhen Branch), Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518120, China
| | - Fan Jiang
- Guangdong Laboratory for Lingnan Modern Agriculture (Shenzhen Branch), Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518120, China
| | - Lihua Yuan
- Guangdong Laboratory for Lingnan Modern Agriculture (Shenzhen Branch), Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518120, China; State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng 475004, China
| | - Lihong Lei
- Guangdong Laboratory for Lingnan Modern Agriculture (Shenzhen Branch), Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518120, China; State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng 475004, China
| | - Hengchao Wang
- Guangdong Laboratory for Lingnan Modern Agriculture (Shenzhen Branch), Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518120, China
| | - Wei Fan
- Guangdong Laboratory for Lingnan Modern Agriculture (Shenzhen Branch), Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong 518120, China.
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Zhang S, Meng F, Pan X, Qiu X, Li C, Lu S. Chromosome-level genome assembly of Prunella vulgaris L. provides insights into pentacyclic triterpenoid biosynthesis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2024; 118:731-752. [PMID: 38226777 DOI: 10.1111/tpj.16629] [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: 03/01/2023] [Revised: 12/08/2023] [Accepted: 12/29/2023] [Indexed: 01/17/2024]
Abstract
Prunella vulgaris is one of the bestselling and widely used medicinal herbs. It is recorded as an ace medicine for cleansing and protecting the liver in Chinese Pharmacopoeia and has been used as the main constitutions of many herbal tea formulas in China for centuries. It is also a traditional folk medicine in Europe and other countries of Asia. Pentacyclic triterpenoids are a major class of bioactive compounds produced in P. vulgaris. However, their biosynthetic mechanism remains to be elucidated. Here, we report a chromosome-level reference genome of P. vulgaris using an approach combining Illumina, ONT, and Hi-C technologies. It is 671.95 Mb in size with a scaffold N50 of 49.10 Mb and a complete BUSCO of 98.45%. About 98.31% of the sequence was anchored into 14 pseudochromosomes. Comparative genome analysis revealed a recent WGD in P. vulgaris. Genome-wide analysis identified 35 932 protein-coding genes (PCGs), of which 59 encode enzymes involved in 2,3-oxidosqualene biosynthesis. In addition, 10 PvOSC, 358 PvCYP, and 177 PvUGT genes were identified, of which five PvOSCs, 25 PvCYPs, and 9 PvUGTs were predicted to be involved in the biosynthesis of pentacyclic triterpenoids. Biochemical activity assay of PvOSC2, PvOSC4, and PvOSC6 recombinant proteins showed that they were mixed amyrin synthase (MAS), lupeol synthase (LUS), and β-amyrin synthase (BAS), respectively. The results provide a solid foundation for further elucidating the biosynthetic mechanism of pentacyclic triterpenoids in P. vulgaris.
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Affiliation(s)
- Sixuan Zhang
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
- Engineering Research Center of Chinese Medicine Resource, Ministry of Education, Beijing, 100193, China
| | - Fanqi Meng
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
- Engineering Research Center of Chinese Medicine Resource, Ministry of Education, Beijing, 100193, China
| | - Xian Pan
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
- Engineering Research Center of Chinese Medicine Resource, Ministry of Education, Beijing, 100193, China
| | - Xiaoxiao Qiu
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
- Engineering Research Center of Chinese Medicine Resource, Ministry of Education, Beijing, 100193, China
| | - Caili Li
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
- Engineering Research Center of Chinese Medicine Resource, Ministry of Education, Beijing, 100193, China
| | - Shanfa Lu
- Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People's Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100193, China
- Engineering Research Center of Chinese Medicine Resource, Ministry of Education, Beijing, 100193, China
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5
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Lethe MCL, Paris V, Wang X, Chan CTY. Similarities in Structure and Function of UDP-Glycosyltransferase Homologs from Human and Plants. Int J Mol Sci 2024; 25:2782. [PMID: 38474028 PMCID: PMC10932239 DOI: 10.3390/ijms25052782] [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: 01/25/2024] [Revised: 02/23/2024] [Accepted: 02/25/2024] [Indexed: 03/14/2024] Open
Abstract
The uridine diphosphate glycosyltransferase (UGT) superfamily plays a key role in the metabolism of xenobiotics and metabolic wastes, which is essential for detoxifying those species. Over the last several decades, a huge effort has been put into studying human and mammalian UGT homologs, but family members in other organisms have been explored much less. Potentially, other UGT homologs can have desirable substrate specificity and biological activities that can be harnessed for detoxification in various medical settings. In this review article, we take a plant UGT homology, UGT71G1, and compare its structural and biochemical properties with the human homologs. These comparisons suggest that even though mammalian and plant UGTs are functional in different environments, they may support similar biochemical activities based on their protein structure and function. The known biological functions of these homologs are discussed so as to provide insights into the use of UGT homologs from other organisms for addressing human diseases related to UGTs.
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Affiliation(s)
- Mary Caroline L. Lethe
- Department of Biomedical Engineering, College of Engineering, University of North Texas, 3940 N Elm Street, Denton, TX 76207, USA (V.P.)
| | - Vincent Paris
- Department of Biomedical Engineering, College of Engineering, University of North Texas, 3940 N Elm Street, Denton, TX 76207, USA (V.P.)
| | - Xiaoqiang Wang
- Department of Biological Sciences, College of Science, University of North Texas, 1155 Union Circle #305220, Denton, TX 76203, USA;
- BioDiscovery Institute, University of North Texas, 1155 Union Circle #305220, Denton, TX 76203, USA
| | - Clement T. Y. Chan
- Department of Biomedical Engineering, College of Engineering, University of North Texas, 3940 N Elm Street, Denton, TX 76207, USA (V.P.)
- BioDiscovery Institute, University of North Texas, 1155 Union Circle #305220, Denton, TX 76203, USA
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Yuan J, Ma L, Wang Y, Xu X, Zhang R, Wang C, Meng W, Tian Z, Zhou Y, Wang G. A recently evolved BAHD acetyltransferase, responsible for bitter soyasaponin A production, is indispensable for soybean seed germination. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2023; 65:2490-2504. [PMID: 37548097 DOI: 10.1111/jipb.13553] [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: 06/16/2023] [Accepted: 08/04/2023] [Indexed: 08/08/2023]
Abstract
Soyasaponins are major small molecules that accumulate in soybean (Glycine max) seeds. Among them, type-A soyasaponins, fully acetylated at the terminal sugar of their C22 sugar chain, are responsible for the bitter taste of soybean-derived foods. However, the molecular basis for the acetylation of type-A soyasaponins remains unclear. Here, we identify and characterize GmSSAcT1, encoding a BADH-type soyasaponin acetyltransferase that catalyzes three or four consecutive acetylations on type-A soyasaponins in vitro and in planta. Phylogenetic analysis and biochemical assays suggest that GmSSAcT1 likely evolved from acyltransferases present in leguminous plants involved in isoflavonoid acylation. Loss-of-function mutants of GmSSAcT1 exhibited impaired seed germination, which attribute to the excessive accumulation of null-acetylated type-A soyasaponins. We conclude that GmSSAcT1 not only functions as a detoxification gene for high accumulation of type-A soyasaponins in soybean seeds but is also a promising target for breeding new soybean varieties with lower bitter soyasaponin content.
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Affiliation(s)
- Jia Yuan
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, the Chinese Academy of Sciences, Beijing, 100101, China
| | - Liya Ma
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, the Chinese Academy of Sciences, Beijing, 100101, China
| | - Yan Wang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, the Chinese Academy of Sciences, Beijing, 100101, China
| | - Xindan Xu
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, the Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Rui Zhang
- State Key Laboratory of Molecular Developmental Biology, the Chinese Academy of Sciences, Beijing, 100190, China
| | - Chengyuan Wang
- The Center for Microbes, Development and Health, Institute of Pasteur of Shanghai, the Chinese Academy of Sciences, Shanghai, 200031, China
| | - Wenxiang Meng
- State Key Laboratory of Molecular Developmental Biology, the Chinese Academy of Sciences, Beijing, 100190, China
| | - Zhixi Tian
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100039, China
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, the Chinese Academy of Sciences, Beijing, 100101, China
| | - Yihua Zhou
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, the Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100039, China
| | - Guodong Wang
- State Key Laboratory of Plant Genomics, Institute of Genetics and Developmental Biology, The Innovative Academy of Seed Design, the Chinese Academy of Sciences, Beijing, 100101, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, 100039, China
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Solis-Miranda J, Chodasiewicz M, Skirycz A, Fernie AR, Moschou PN, Bozhkov PV, Gutierrez-Beltran E. Stress-related biomolecular condensates in plants. THE PLANT CELL 2023; 35:3187-3204. [PMID: 37162152 PMCID: PMC10473214 DOI: 10.1093/plcell/koad127] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 04/07/2023] [Accepted: 04/27/2023] [Indexed: 05/11/2023]
Abstract
Biomolecular condensates are membraneless organelle-like structures that can concentrate molecules and often form through liquid-liquid phase separation. Biomolecular condensate assembly is tightly regulated by developmental and environmental cues. Although research on biomolecular condensates has intensified in the past 10 years, our current understanding of the molecular mechanisms and components underlying their formation remains in its infancy, especially in plants. However, recent studies have shown that the formation of biomolecular condensates may be central to plant acclimation to stress conditions. Here, we describe the mechanism, regulation, and properties of stress-related condensates in plants, focusing on stress granules and processing bodies, 2 of the most well-characterized biomolecular condensates. In this regard, we showcase the proteomes of stress granules and processing bodies in an attempt to suggest methods for elucidating the composition and function of biomolecular condensates. Finally, we discuss how biomolecular condensates modulate stress responses and how they might be used as targets for biotechnological efforts to improve stress tolerance.
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Affiliation(s)
- Jorge Solis-Miranda
- Institutode Bioquimica Vegetal y Fotosintesis, Consejo Superior de Investigaciones Cientificas (CSIC)-Universidad de Sevilla, 41092 Sevilla, Spain
| | - Monika Chodasiewicz
- Biological and Environmental Science and Engineering Division, Center for Desert Agriculture, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | | | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, 14476 Potsdam-Golm, Germany
| | - Panagiotis N Moschou
- Department of Plant Biology, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Center for Plant Biology, 75007 Uppsala, Sweden
- Department of Biology, University of Crete, Heraklion 71409, Greece
- Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology-Hellas, Heraklion 70013, Greece
| | - Peter V Bozhkov
- Department of Molecular Sciences, Uppsala BioCenter, Swedish University of Agricultural Sciences and Linnean Center for Plant Biology, 75007 Uppsala, Sweden
| | - Emilio Gutierrez-Beltran
- Institutode Bioquimica Vegetal y Fotosintesis, Consejo Superior de Investigaciones Cientificas (CSIC)-Universidad de Sevilla, 41092 Sevilla, Spain
- Departamento de Bioquimica Vegetal y Biologia Molecular, Facultad de Biologia, Universidad de Sevilla, 41012 Sevilla, Spain
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Hao Y, Fu J, Zhang J, Du N, Ta H, Zhu TT, Wang H, Lou HX, Cheng AX. Identification and Functional Characterization of UDP-Glycosyltransferases Involved in Isoflavone Biosynthesis in Astragalus membranaceus. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:12775-12784. [PMID: 37604680 DOI: 10.1021/acs.jafc.3c03563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
Isoflavones are rich natural compounds present in legumes and are essential for plant growth and development. Moreover, they are beneficial for animals and humans. Isoflavones are primarily found as glycoconjugates, including calycosin-7-O-β-d-glucoside (CG) in Astragalus membranaceus, a legume. However, the glycosylation mechanism of isoflavones in A. membranaceus remains unclear. In the present study, three uridine diphosphate (UDP)-glycosyltransferases (UGTs) that may be involved in the biosynthesis of isoflavone were identified in the transcriptome of A. membranaceus. Enzymatic analysis revealed that AmUGT88E29 and AmUGT88E30 had high catalytic activity toward isoflavones in vitro. In addition, AmUGT88E29 and AmUGT88E30 could accept various flavones, flavanones, flavonols, dihydroflavonols, and dihydrochalcones as substrates. AmUGT71G10 was only active against phloretin and dihydroresveratrol. Overexpression of AmUGT88E29 significantly increased the contents of CG, an isoflavone glucoside, in the hairy roots of A. membranaceus. This study provided candidate AmUGT genes for the potential metabolic engineering of flavonoid compounds in plants and a valuable resource for studying the calycosin glycosides biosynthesis pathway.
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Affiliation(s)
- Yue Hao
- Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
| | - Jie Fu
- Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
| | - Jiaozhen Zhang
- Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
| | - Nihong Du
- Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
| | - He Ta
- Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
| | - Ting-Ting Zhu
- Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
| | - Hailong Wang
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Helmholtz International Lab for Anti-Infectives, Helmholtz Institute of Biotechnology, Shandong University, Qingdao 266237, People's Republic of China
| | - Hong-Xiang Lou
- Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
| | - Ai-Xia Cheng
- Key Laboratory of Chemical Biology of Natural Products, Ministry of Education, School of Pharmaceutical Sciences, Shandong University, Jinan 250012, People's Republic of China
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Li Y, Wang J, Li L, Song W, Li M, Hua X, Wang Y, Yuan J, Xue Z. Natural products of pentacyclic triterpenoids: from discovery to heterologous biosynthesis. Nat Prod Rep 2023; 40:1303-1353. [PMID: 36454108 DOI: 10.1039/d2np00063f] [Citation(s) in RCA: 26] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
Covering: up to 2022Pentacyclic triterpenoids are important natural bioactive substances that are widely present in plants and fungi. They have significant medicinal efficacy, play an important role in reducing blood glucose and protecting the liver, and have anti-inflammatory, anti-oxidation, anti-fatigue, anti-viral, and anti-cancer activities. Pentacyclic triterpenoids are derived from the isoprenoid biosynthetic pathway, which generates common precursors of triterpenes and steroids, followed by cyclization with oxidosqualene cyclases (OSCs) and decoration via cytochrome P450 monooxygenases (CYP450s) and glycosyltransferases (GTs). Many biosynthetic pathways of triterpenoid saponins have been elucidated by studying their metabolic regulation network through the use of multiomics and identifying their functional genes. Unfortunately, natural resources of pentacyclic triterpenoids are limited due to their low content in plant tissues and the long growth cycle of plants. Based on the understanding of their biosynthetic pathway and transcriptional regulation, plant bioreactors and microbial cell factories are emerging as alternative means for the synthesis of desired triterpenoid saponins. The rapid development of synthetic biology, metabolic engineering, and fermentation technology has broadened channels for the accumulation of pentacyclic triterpenoid saponins. In this review, we summarize the classification, distribution, structural characteristics, and bioactivity of pentacyclic triterpenoids. We further discuss the biosynthetic pathways of pentacyclic triterpenoids and involved transcriptional regulation. Moreover, the recent progress and characteristics of heterologous biosynthesis in plants and microbial cell factories are discussed comparatively. Finally, we propose potential strategies to improve the accumulation of triterpenoid saponins, thereby providing a guide for their future biomanufacturing.
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Affiliation(s)
- Yanlin Li
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Northeast Forestry University, Harbin, PR China.
- Heilongjiang Key Laboratory of Plant Bioactive Substance Biosynthesis and Utilization, Northeast Forestry University, Harbin, PR China
| | - Jing Wang
- Institute of Forestry and Pomology, Beijing Academy of Agriculture and Forestry Sciences, Beijing, PR China
| | - Linyong Li
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Northeast Forestry University, Harbin, PR China.
- Heilongjiang Key Laboratory of Plant Bioactive Substance Biosynthesis and Utilization, Northeast Forestry University, Harbin, PR China
| | - Wenhui Song
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Northeast Forestry University, Harbin, PR China.
- Heilongjiang Key Laboratory of Plant Bioactive Substance Biosynthesis and Utilization, Northeast Forestry University, Harbin, PR China
| | - Min Li
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Northeast Forestry University, Harbin, PR China.
- Heilongjiang Key Laboratory of Plant Bioactive Substance Biosynthesis and Utilization, Northeast Forestry University, Harbin, PR China
| | - Xin Hua
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Northeast Forestry University, Harbin, PR China.
- Heilongjiang Key Laboratory of Plant Bioactive Substance Biosynthesis and Utilization, Northeast Forestry University, Harbin, PR China
| | - Yu Wang
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Northeast Forestry University, Harbin, PR China.
| | - Jifeng Yuan
- State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University, 361102, Fujian, PR China.
| | - Zheyong Xue
- Ministry of Education, Key Laboratory of Saline-alkali Vegetation Ecology Restoration, Northeast Forestry University, Harbin, PR China.
- Heilongjiang Key Laboratory of Plant Bioactive Substance Biosynthesis and Utilization, Northeast Forestry University, Harbin, PR China
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10
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Yu B, Gao P, Song J, Yang H, Qin L, Yu X, Song H, Coulson J, Bekkaoui Y, Akhov L, Han X, Cram D, Wei Y, Zaharia LI, Zou J, Konkin D, Quilichini TD, Fobert P, Patterson N, Datla R, Xiang D. Spatiotemporal transcriptomics and metabolic profiling provide insights into gene regulatory networks during lentil seed development. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2023. [PMID: 36965062 DOI: 10.1111/tpj.16205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/13/2023] [Accepted: 03/20/2023] [Indexed: 06/18/2023]
Abstract
Lentil (Lens culinaris Medik.) is a nutritious legume with seeds rich in protein, minerals and an array of diverse specialized metabolites. The formation of a seed requires regulation and tight coordination of developmental programs to form the embryo, endosperm and seed coat compartments, which determines the structure and composition of mature seed and thus its end-use quality. Understanding the molecular and cellular events and metabolic processes of seed development is essential for improving lentil yield and seed nutritional value. However, such information remains largely unknown, especially at the seed compartment level. In this study, we generated high-resolution spatiotemporal gene expression profiles in lentil embryo, seed coat and whole seeds from fertilization through maturation. Apart from anatomic differences between the embryo and seed coat, comparative transcriptomics and weighted gene co-expression network analysis revealed embryo- and seed coat-specific genes and gene modules predominant in specific tissues and stages, which highlights distinct genetic programming. Furthermore, we investigated the dynamic profiles of flavonoid, isoflavone, phytic acid and saponin in seed compartments across seed development. Coupled with transcriptome data, we identified sets of candidate genes involved in the biosynthesis of these metabolites. The global view of the transcriptional and metabolic changes of lentil seed tissues throughout development provides a valuable resource for dissecting the genetic control of secondary metabolism and development of molecular tools for improving seed nutritional quality.
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Affiliation(s)
- Bianyun Yu
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, Saskatchewan, S7N 0W9, Canada
| | - Peng Gao
- Agriculture and Agri-Food Canada, Saskatoon Research and Development Centre, 107 Science Place, Saskatoon, SK, S7N 0X2, Canada
| | - Jingpu Song
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, Saskatchewan, S7N 0W9, Canada
| | - Hui Yang
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, Saskatchewan, S7N 0W9, Canada
| | - Li Qin
- Global Institute for Food Security, University of Saskatchewan, Saskatoon, SK, S7N 4L8, Canada
| | - Xiaoyu Yu
- Global Institute for Food Security, University of Saskatchewan, Saskatoon, SK, S7N 4L8, Canada
| | - Halim Song
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, Saskatchewan, S7N 0W9, Canada
| | - Justin Coulson
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, Saskatchewan, S7N 0W9, Canada
| | - Yasmina Bekkaoui
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, Saskatchewan, S7N 0W9, Canada
| | - Leonid Akhov
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, Saskatchewan, S7N 0W9, Canada
| | - Xiumei Han
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, Saskatchewan, S7N 0W9, Canada
| | - Dustin Cram
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, Saskatchewan, S7N 0W9, Canada
| | - Yangdou Wei
- College of Art & Science, University of Saskatchewan, 9 Campus Drive, Saskatoon, SK, S7N 5A5, Canada
| | - L Irina Zaharia
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, Saskatchewan, S7N 0W9, Canada
| | - Jitao Zou
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, Saskatchewan, S7N 0W9, Canada
| | - David Konkin
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, Saskatchewan, S7N 0W9, Canada
| | - Teagen D Quilichini
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, Saskatchewan, S7N 0W9, Canada
| | - Pierre Fobert
- Aquatic and Crop Resource Development, National Research Council Canada, Ottawa, Ontario, K1A 0R6, Canada
| | - Nii Patterson
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, Saskatchewan, S7N 0W9, Canada
| | - Raju Datla
- Global Institute for Food Security, University of Saskatchewan, Saskatoon, SK, S7N 4L8, Canada
| | - Daoquan Xiang
- Aquatic and Crop Resource Development, National Research Council Canada, Saskatoon, Saskatchewan, S7N 0W9, Canada
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11
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UDP-Glycosyltransferases in Edible Fungi: Function, Structure, and Catalytic Mechanism. FERMENTATION-BASEL 2023. [DOI: 10.3390/fermentation9020164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
UDP-glycosyltransferases (UGTs) are the most studied glycosyltransferases, and belong to large GT1 family performing the key roles in antibiotic synthesis, the development of bacterial glycosyltransferase inhibitors, and in animal inflammation. They transfer the glycosyl groups from nucleotide UDP-sugars (UDP-glucose, UDP-galactose, UDP-xylose, and UDP-rhamnose) to the acceptors including saccharides, proteins, lipids, and secondary metabolites. The present review summarized the recent of UDP-glycosyltransferases, including their structures, functions, and catalytic mechanism, especially in edible fungi. The future perspectives and new challenges were also summarized to understand of their structure–function relationships in the future. The outputs in this field could provide a reference to recognize function, structure, and catalytic mechanism of UDP-glycosyltransferases for understanding the biosynthesis pathways of secondary metabolites, such as hydrocarbons, monoterpenes, sesquiterpene, and polysaccharides in edible fungi.
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12
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Pan J, Huang C, Yao W, Niu T, Yang X, Wang R. Full-length transcriptome, proteomics and metabolite analysis reveal candidate genes involved triterpenoid saponin biosynthesis in Dipsacus asperoides. FRONTIERS IN PLANT SCIENCE 2023; 14:1134352. [PMID: 36844092 PMCID: PMC9950739 DOI: 10.3389/fpls.2023.1134352] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 01/31/2023] [Indexed: 06/18/2023]
Abstract
Dipsacus asperoides is a traditional medicinal herb widely used in inflammation and fracture in Asia. Triterpenoid saponins from D. asperoides are the main composition with pharmacological activity. However, the biosynthesis pathway of triterpenoid saponins has not been completely resolved in D. asperoides. Here, the types and contents of triterpenoid saponins were discovered with different distributions in five tissues (root, leaf, flower, stem, and fibrous root tissue) from D. asperoides by UPLC-Q-TOF-MS analysis. The discrepancy between five tissues in D. asperoides at the transcriptional level was studied by combining single-molecule real-time sequencing and next- generation sequencing. Meanwhile, key genes involved in the biosynthesis of saponin were further verified by proteomics. In MEP and MVA pathways, 48 differentially expressed genes were identified through co-expression analysis of transcriptome and saponin contents, including two isopentenyl pyrophosphate isomerase and two 2,3-oxidosqualene β-amyrin cyclase, etc. In the analysis of WGCNA, 6 cytochrome P450s and 24 UDP- glycosyltransferases related to the biosynthesis of triterpenoid saponins were discovered with high transcriptome expression. This study will provide profound insights to demonstrate essential genes in the biosynthesis pathway of saponins in D. asperoides and support for the biosynthetic of natural active ingredients in the future.
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Affiliation(s)
- Jie Pan
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chaokang Huang
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Weilin Yao
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Tengfei Niu
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiaolin Yang
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, China
| | - Rufeng Wang
- Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai R&D Center for Standardization of Chinese Medicines, Shanghai, China
- The MOE Key Laboratory for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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13
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Mohideen FI, Kwan DH. A "biphasic glycosyltransferase high-throughput screen" identifies novel anthraquinone glycosides in the diversification of phenolic natural products. J Biol Chem 2023; 299:102931. [PMID: 36682498 PMCID: PMC9950524 DOI: 10.1016/j.jbc.2023.102931] [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: 03/19/2022] [Revised: 01/15/2023] [Accepted: 01/17/2023] [Indexed: 01/21/2023] Open
Abstract
The sugar moieties of many glycosylated small molecule natural products are essential for their biological activity. Glycosyltransferases (GTs) are enzymes responsible for installing these sugar moieties on a variety of biomolecules. Many GTs active on natural products are inherently substrate promiscuous and thus serve as useful tools in manipulating natural product glycosylation to generate new combinations of sugar units (glycones) and scaffold molecules (aglycones) in a process called glycodiversification. It is important to have an effective screening tool to detect the activity of promiscuous enzymes and their resulting glycoside products. Toward this aim, we developed a strategy for screening natural product GTs in a high-throughput fashion enabled by rapid isolation and detection of chromophoric or fluorescent glycosylated natural products. This involves a solvent extraction step to isolate the resulting polar glycoside product from the unreacted aglycone acceptor substrate and the detection of the formed glycoside by the innate absorbance or fluorescence of the aglycone moiety. Using our approach, we screened a collection of natural product GTs against a panel of precursors to therapeutically important molecules. Three GTs showed previously unreported promiscuity toward anthraquinones resulting in novel ε-rhodomycinone glycosides. Considering the pharmaceutical value of clinically used anthraquinone glycosides that are biosynthesized from an ε-rhodomycinone precursor, and the significance that the sugar moiety has on the biological activity of these drugs, our results are of particular importance toward the glycodiversification of therapeutics in this class. The GTs identified and the novel compounds they produce show promise toward new biocatalytic tools and therapeutics.
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Affiliation(s)
- F Ifthiha Mohideen
- Department of Biology, Centre for Applied Synthetic Biology, and Centre for Structural and Functional Genomics, Concordia University, Montreal, Quebec, Canada
| | - David H Kwan
- Department of Biology, Centre for Applied Synthetic Biology, and Centre for Structural and Functional Genomics, Concordia University, Montreal, Quebec, Canada; Department of Chemistry and Biochemistry, Concordia University, Montreal, Quebec, Canada; PROTEO, Quebec Network for Research on Protein Function, Quebec City, Quebec, Canada.
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14
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Yu B, Patterson N, Zaharia LI. Saponin Biosynthesis in Pulses. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11243505. [PMID: 36559617 PMCID: PMC9780904 DOI: 10.3390/plants11243505] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/09/2022] [Accepted: 12/10/2022] [Indexed: 05/27/2023]
Abstract
Pulses are a group of leguminous crops that are harvested solely for their dry seeds. As the demand for plant-based proteins grows, pulses are becoming important food crops worldwide. In addition to being a rich source of nutrients, pulses also contain saponins that are traditionally considered anti-nutrients, and impart bitterness and astringency. Saponins are plant secondary metabolites with great structural and functional diversity. Given their diverse functional properties and biological activities, both undesirable and beneficial, saponins have received growing attention. It can be expected that redirecting metabolic fluxes to control the saponin levels and produce desired saponins would be an effective approach to improve the nutritional and sensory quality of the pulses. However, little effort has been made toward understanding saponin biosynthesis in pulses, and, thus there exist sizable knowledge gaps regarding its pathway and regulatory network. In this paper, we summarize the research progress made on saponin biosynthesis in pulses. Additionally, phylogenetic relationships of putative biosynthetic enzymes among multiple pulse species provide a glimpse of the evolutionary routes and functional diversification of saponin biosynthetic enzymes. The review will help us to advance our understanding of saponin biosynthesis and aid in the development of molecular and biotechnological tools for the systematic optimization of metabolic fluxes, in order to produce the desired saponins in pulses.
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15
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Singh G, Sharma S, Rawat S, Sharma RK. Plant Specialised Glycosides (PSGs): their biosynthetic enzymatic machinery, physiological functions and commercial potential. FUNCTIONAL PLANT BIOLOGY : FPB 2022; 49:1009-1028. [PMID: 36038144 DOI: 10.1071/fp21294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 08/02/2022] [Indexed: 06/15/2023]
Abstract
Plants, the primary producers of our planet, have evolved from simple aquatic life to very complex terrestrial habitat. This habitat transition coincides with evolution of enormous chemical diversity, collectively termed as 'Plant Specialised Metabolisms (PSMs)', to cope the environmental challenges. Plant glycosylation is an important process of metabolic diversification of PSMs to govern their in planta stability, solubility and inter/intra-cellular transport. Although, individual category of PSMs (terpenoids, phenylpropanoids, flavonoids, saponins, alkaloids, phytohormones, glucosinolates and cyanogenic glycosides) have been well studied; nevertheless, deeper insights of physiological functioning and genomic aspects of plant glycosylation/deglycosylation processes including enzymatic machinery (CYPs, GTs, and GHs) and regulatory elements are still elusive. Therefore, this review discussed the paradigm shift on genomic background of enzymatic machinery, transporters and regulatory mechanism of 'Plant Specialised Glycosides (PSGs)'. Current efforts also update the fundamental understanding about physiological, evolutionary and adaptive role of glycosylation/deglycosylation processes during the metabolic diversification of PSGs. Additionally, futuristic considerations and recommendations for employing integrated next-generation multi-omics (genomics, transcriptomics, proteomics and metabolomics), including gene/genome editing (CRISPR-Cas) approaches are also proposed to explore commercial potential of PSGs.
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Affiliation(s)
- Gopal Singh
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India; and Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad 201002, Uttar Pradesh, India; and Present address: Department of Plant Functional Metabolomics, Institute of Bioorganic Chemistry, Polish Academy of Sciences, Noskowskiego 12/14, 61-704 Poznan, Poland
| | - Shikha Sharma
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India; and Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad 201002, Uttar Pradesh, India
| | - Sandeep Rawat
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India; and Present address: G. B. Pant National Institute of Himalayan Environment and Sustainable Development, Sikkim Regional Centre, Pangthang, Gangtok 737101, Sikkim, India
| | - Ram Kumar Sharma
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur 176061, Himachal Pradesh, India; and Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad 201002, Uttar Pradesh, India
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16
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Darwish DBE, Ali M, Abdelkawy AM, Zayed M, Alatawy M, Nagah A. Constitutive overexpression of GsIMaT2 gene from wild soybean enhances rhizobia interaction and increase nodulation in soybean (Glycine max). BMC PLANT BIOLOGY 2022; 22:431. [PMID: 36076165 PMCID: PMC9461152 DOI: 10.1186/s12870-022-03811-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Since the root nodules formation is regulated by specific and complex interactions of legume and rhizobial genes, there are still too many questions to be answered about the role of the genes involved in the regulation of the nodulation signaling pathway. RESULTS The genetic and biological roles of the isoflavone-7-O-beta-glucoside 6″-O-malonyltransferase gene GsIMaT2 from wild soybean (Glycine soja) in the regulation of nodule and root growth in soybean (Glycine max) were examined in this work. The effect of overexpressing GsIMaT2 from G. soja on the soybean nodulation signaling system and strigolactone production was investigated. We discovered that the GsIMaT2 increased nodule numbers, fresh nodule weight, root weight, and root length by boosting strigolactone formation. Furthermore, we examined the isoflavone concentration of transgenic G. max hairy roots 10 and 20 days after rhizobial inoculation. Malonyldaidzin, malonylgenistin, daidzein, and glycitein levels were considerably higher in GsMaT2-OE hairy roots after 10- and 20-days of Bradyrhizobium japonicum infection compared to the control. These findings suggest that isoflavones and their biosynthetic genes play unique functions in the nodulation signaling system in G. max. CONCLUSIONS Finally, our results indicate the potential effects of the GsIMaT2 gene on soybean root growth and nodulation. This study provides novel insights for understanding the epistatic relationship between isoflavones, root development, and nodulation in soybean. HIGHLIGHTS * Cloning and Characterization of 7-O-beta-glucoside 6″-O-malonyltransferase (GsIMaT2) gene from wild soybean (G. soja). * The role of GsIMaT2 gene in the regulation of root nodule development. *Overexpression of GsMaT2 gene increases the accumulation of isoflavonoid in transgenic soybean hairy roots. * This gene could be used for metabolic engineering of useful isoflavonoid production.
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Affiliation(s)
- Doaa Bahaa Eldin Darwish
- Botany Department, Faculty of Science, Mansoura University, Mansoura, 35511 Egypt
- Department of Biology, College of Science, Tabuk University, Tabuk, 74191 Saudi Arabia
| | - Mohammed Ali
- Department of Genetic Resources, Desert Research Center, Egyptian Deserts Gene Bank, North Sinai Research Station, 1 Mathaf El-Matarya St., El-Matareya, Cairo, 11753 Egypt
| | - Aisha M. Abdelkawy
- Botany and Microbiology Department, Faculty of Science, Al-Azhar University (Girls Branch), Cairo, Egypt
| | - Muhammad Zayed
- Botany and Microbiology Department, Faculty of Science, Menoufia University, Menoufia, Shebin El-Kom, 32511 Egypt
| | - Marfat Alatawy
- Department of Biology, College of Science, Tabuk University, Tabuk, 74191 Saudi Arabia
| | - Aziza Nagah
- Botany and Microbiology Department, Faculty of Science, Banha University, Qalyubia Governorate, Benha, 13518 Egypt
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Integrative Metabolome and Transcriptome Analysis Reveals the Regulatory Network of Flavonoid Biosynthesis in Response to MeJA in Camelliavietnamensis Huang. Int J Mol Sci 2022; 23:ijms23169370. [PMID: 36012624 PMCID: PMC9409299 DOI: 10.3390/ijms23169370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 11/16/2022] Open
Abstract
Flavonoids are secondary metabolites widely found in plants, which perform various biological activities, such as antiinflammation, antioxidation, antitumor, and so on. Camellia vietnamensis Huang, a species of oil-tea Camellia tree, is an important woody oil crop species widely planted on Hainan Island, which provides health benefits with its high antioxidant activity and abundant flavonoid content. However, very little is known about the overall molecular mechanism of flavonoid biosynthesis in C. vietnamensis Huang. In this study, methyl jasmonate (MeJA) is used as an inducer to change the content of secondary metabolites in C. vietnamensis. Then, the potential mechanisms of flavonoid biosynthesis in C. vietnamensis leaves in response to MeJA were analyzed by metabolomics and transcriptomics (RNA sequencing). The results showed that metabolome analysis detected 104 flavonoids and 74 fatty acyls which showed different expression patterns (increased or decreased expression). It was discovered by KEGG analysis that three differentially accumulated metabolites (cinnamaldehyde, kaempferol and quercitrin) were annotated in the phenylpropanoid biosynthesis (ko00940), flavonoid biosynthesis (ko00941), and flavone and flavonol biosynthesis (ko00944) pathways. In the transcriptome analysis, 35 different genes involved in the synthesis of flavonoids were identified by MapMan analysis. The key genes (PAL, 4CL, CCR, CHI, CHS, C4H, FLS) that might be involved in the formation of flavonoid were highly expressed after 2 h of MeJA treatment. This study provides new insights and data supporting the molecular mechanism underlying the metabolism and synthesis of flavonoids in C. vietnamensis under MeJA treatment.
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18
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Huang P, Zang F, Li C, Lin F, Zang D, Li B, Zheng Y. The Akebia Genus as a Novel Forest Crop: A Review of Its Genetic Resources, Nutritional Components, Biosynthesis, and Biological Studies. FRONTIERS IN PLANT SCIENCE 2022; 13:936571. [PMID: 35958221 PMCID: PMC9360799 DOI: 10.3389/fpls.2022.936571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 06/22/2022] [Indexed: 06/15/2023]
Abstract
The genus Akebia belongs to the Lardizabalaceae family and comprises five species that are primarily distributed in East Asia. Plants of the Akebia genus comprise deciduous and semi-evergreen perennial twining vines that have been used in Chinese herbal medicine for at least 2000 years. The plants of this genus have the potential to form a novel forest crop with high nutritional and economic value because their fruit has a delicious sweet taste and rich nutrient components. In this study, we organized, analyzed, and evaluated the available published scientific literature on the botanical, ecological, and phytochemical characteristics of Akebia plants. Based on these studies, we briefly introduced botanical and ecological characteristics and focused on reviewing the development and utilization of wild genetic resources in the genus Akebia. We further explored the genus' rich nutritional components, such as triterpenes, flavonoids, polyphenols, polysaccharides, and fatty acids, and their potential use in food and health improvement applications. In addition, several papers describing advances in biotechnological research focusing on micropropagation, nutrient biosynthesis, and fruit ripeness were also included. This review provides comprehensive knowledge of the Akebia genus as a new forest crop for food and fruit utilization, and we also discuss future breeding and research prospects.
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Affiliation(s)
- Ping Huang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Forest Silviculture and Tree Cultivation, National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
| | - Fengqi Zang
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Forest Silviculture and Tree Cultivation, National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
| | - Changhong Li
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Forest Silviculture and Tree Cultivation, National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
| | - Furong Lin
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Forest Silviculture and Tree Cultivation, National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
| | - Dekui Zang
- Key Laboratory of State Forestry Administration for Silviculture of the Lower Yellow River, College of Forestry, Shandong Agricultural University, Tai'an, China
| | - Bin Li
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Forest Silviculture and Tree Cultivation, National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
| | - Yongqi Zheng
- State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Forest Silviculture and Tree Cultivation, National Forestry and Grassland Administration, Research Institute of Forestry, Chinese Academy of Forestry, Beijing, China
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Yan Y, Mo T, Huang W, Xu X, Tian W, Wang Y, Song Y, Li J, Shi S, Liu X, Tu P. Glycosylation of Aromatic Glycosides by a Promiscuous Glycosyltransferase UGT71BD1 from Cistanche tubulosa. JOURNAL OF NATURAL PRODUCTS 2022; 85:1826-1836. [PMID: 35791759 DOI: 10.1021/acs.jnatprod.2c00407] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Multiple-glycosylated glycosides are a major source of bioactive leads. However, most of the currently reported glycosyltransferases (GTases) mainly catalyze glycosylation of aglycones without sugar group substitution. GTases accepting diverse glycosides as substrates are rarely reported. In this article, a new GTase UGT71BD1 was identified from Cistanche tubulosa, a desert herb plant abundant with various phenylethanoid glycosides (PhGs). Interestingly, UGT71BD1 showed no activity toward the aglycone of PhGs. Instead, it could catalyze the further glycosylation of PhG compounds to produce new phenylethanoid multiglycosylated glycosides, including the natural rarely separated tetraglycoside PhGs. Extensive assays found the unprecedented substrate promiscuity of UGT71BD1 toward diverse glycosides including flavonoid glycosides, stilbene glycosides, and coumarin glycosides, performing further mono- or diglycosylation with efficient conversion rates. Using UGT71BD1, six multiglycosylated glycosides were prepared and structurally identified by NMR spectroscopy. These products showed enhanced pharmacological activities compared with the substrates. Docking, dynamic simulation, and mutagenesis studies identified key residues for UGT71BD1's activity and revealed that the sugar modules in glycosides play crucial roles in substrate recognition, thus partly illuminating the unusual substrate preference of UGT71BD1 toward diverse glycosides. UGT71BD1 could be a potential enzyme tool for glycosylation of diverse glycosides.
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Affiliation(s)
- Yaru Yan
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Ting Mo
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Wenqian Huang
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Xiping Xu
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Weisheng Tian
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Yingxia Wang
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Yuelin Song
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Jun Li
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Shepo Shi
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Xiao Liu
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
| | - Pengfei Tu
- Modern Research Center for Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, People's Republic of China
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, People's Republic of China
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20
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He B, Bai X, Tan Y, Xie W, Feng Y, Yang GY. Glycosyltransferases: Mining, engineering and applications in biosynthesis of glycosylated plant natural products. Synth Syst Biotechnol 2022; 7:602-620. [PMID: 35261926 PMCID: PMC8883072 DOI: 10.1016/j.synbio.2022.01.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 12/10/2021] [Accepted: 01/02/2022] [Indexed: 12/14/2022] Open
Abstract
UDP-Glycosyltransferases (UGTs) catalyze the transfer of nucleotide-activated sugars to specific acceptors, among which the GT1 family enzymes are well-known for their function in biosynthesis of natural product glycosides. Elucidating GT function represents necessary step in metabolic engineering of aglycone glycosylation to produce drug leads, cosmetics, nutrients and sweeteners. In this review, we systematically summarize the phylogenetic distribution and catalytic diversity of plant GTs. We also discuss recent progress in the identification of novel GT candidates for synthesis of plant natural products (PNPs) using multi-omics technology and deep learning predicted models. We also highlight recent advances in rational design and directed evolution engineering strategies for new or improved GT functions. Finally, we cover recent breakthroughs in the application of GTs for microbial biosynthesis of some representative glycosylated PNPs, including flavonoid glycosides (fisetin 3-O-glycosides, astragalin, scutellarein 7-O-glucoside), terpenoid glycosides (rebaudioside A, ginsenosides) and polyketide glycosides (salidroside, polydatin).
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21
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Sengupta S, Azad RK. A Protocol for Phylogenetic Reconstruction. Methods Mol Biol 2022; 2396:35-46. [PMID: 34786674 DOI: 10.1007/978-1-0716-1822-6_4] [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] [Indexed: 06/13/2023]
Abstract
The similarity of biological functions and molecular mechanisms in living organisms suggests their common origin. The inference of evolutionary relationships among the extant organisms is primarily based on structural, functional, and sequence data of biomolecules, such as DNA, RNA, and protein, and their relative changes over the course of time. To decipher evolutionary relationships, a variety of data can be used. The exponential growth of genomic data, spurred by advances in DNA sequencing, has enabled biologists to reconstruct the tree or network of life for a vast number of organisms dwelling in the earth. In addition of organismal relationships, phylogenetic analysis is often performed to characterize gene families, specifically to identify the orthologs and paralogs of a gene of interest and understand their varied functions in light of evolution. In this chapter, we describe a protocol for reconstructing a phylogenetic tree using maximum-likelihood approach. We demonstrate using an example dataset and a suite of publicly available programs.
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Affiliation(s)
- Soham Sengupta
- Department of Biological Sciences and BioDiscovery Institute, University of North Texas, Denton, TX, USA
| | - Rajeev K Azad
- Department of Biological Sciences and BioDiscovery Institute, University of North Texas, Denton, TX, USA.
- Department of Mathematics, University of North Texas, Denton, TX, USA.
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22
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Jiang CK, Liu ZL, Li XY, Ercisli S, Ma JQ, Chen L. Non-Volatile Metabolic Profiling and Regulatory Network Analysis in Fresh Shoots of Tea Plant and Its Wild Relatives. FRONTIERS IN PLANT SCIENCE 2021; 12:746972. [PMID: 34659317 PMCID: PMC8519607 DOI: 10.3389/fpls.2021.746972] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 08/31/2021] [Indexed: 06/13/2023]
Abstract
There are numerous non-volatile metabolites in the fresh shoots of tea plants. However, we know little about the complex relationship between the content of these metabolites and their gene expression levels. In investigating this, this study involved non-volatile metabolites from 68 accessions of tea plants that were detected and identified using untargeted metabolomics. The tea accessions were divided into three groups from the results of a principal component analysis based on the relative content of the metabolites. There were differences in variability between the primary and secondary metabolites. Furthermore, correlations among genes, gene metabolites, and metabolites were conducted based on Pearson's correlation coefficient (PCC) values. This study offered several significant insights into the co-current network of genes and metabolites in the global genetic background. Thus, the study is useful for providing insights into the regulatory relationship of the genetic basis for predominant metabolites in fresh tea shoots.
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Affiliation(s)
- Chen-Kai Jiang
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Tea Research Institute of the Chinese Academy of Agricultural Sciences, Hangzhou, China
- State Key Laboratory for Quality and Safety of Agro-Products, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Zhi-Long Liu
- Lishui Academy of Agricultural and Forestry Sciences, Lishui, China
| | - Xuan-Ye Li
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Tea Research Institute of the Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Sezai Ercisli
- Department of Horticulture, Faculty of Agriculture, Ataturk University, Erzurum, Turkey
| | - Jian-Qiang Ma
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Tea Research Institute of the Chinese Academy of Agricultural Sciences, Hangzhou, China
| | - Liang Chen
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Tea Research Institute of the Chinese Academy of Agricultural Sciences, Hangzhou, China
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23
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Vernoud V, Lebeigle L, Munier J, Marais J, Sanchez M, Pertuit D, Rossin N, Darchy B, Aubert G, Le Signor C, Berdeaux O, Lacaille-Dubois MA, Thompson R. β-Amyrin Synthase1 Controls the Accumulation of the Major Saponins Present in Pea (Pisum sativum). PLANT & CELL PHYSIOLOGY 2021; 62:784-797. [PMID: 33826728 DOI: 10.1093/pcp/pcab049] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 04/02/2021] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
The use of pulses as ingredients for the production of food products rich in plant proteins is increasing. However, protein fractions prepared from pea or other pulses contain significant amounts of saponins, glycosylated triterpenes that can impart an undesirable bitter taste when used as an ingredient in foodstuffs. In this article, we describe the identification and characterization of a gene involved in saponin biosynthesis during pea seed development, by screening mutants obtained from two Pisum sativum TILLING (Targeting Induced Local Lesions IN Genomes) populations in two different genetic backgrounds. The mutations studied are located in a gene designated PsBAS1 (β-amyrin synthase1), which is highly expressed in maturing pea seeds and which encodes a protein previously shown to correspond to an active β-amyrin synthase. The first allele is a nonsense mutation, while the second mutation is located in a splice site and gives rise to a mis-spliced transcript encoding a truncated, nonfunctional protein. The homozygous mutant seeds accumulated virtually no saponin without affecting the seed nutritional or physiological quality. Interestingly, BAS1 appears to control saponin accumulation in all other tissues of the plant examined. These lines represent a first step in the development of pea varieties lacking bitterness off-flavors in their seeds. Our work also shows that TILLING populations in different genetic backgrounds represent valuable genetic resources for both crop improvement and functional genomics.
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Affiliation(s)
- Vanessa Vernoud
- Agroécologie, AgroSup Dijon, INRAE, Univ. Bourgogne Franche-Comté, Dijon 21000, France
| | - Ludivine Lebeigle
- Agroécologie, AgroSup Dijon, INRAE, Univ. Bourgogne Franche-Comté, Dijon 21000, France
- University of Lausanne, Center for Integrative GenomicsLausanne 1015,Switzerland
| | - Jocelyn Munier
- Agroécologie, AgroSup Dijon, INRAE, Univ. Bourgogne Franche-Comté, Dijon 21000, France
| | - Julie Marais
- Agroécologie, AgroSup Dijon, INRAE, Univ. Bourgogne Franche-Comté, Dijon 21000, France
| | - Myriam Sanchez
- Agroécologie, AgroSup Dijon, INRAE, Univ. Bourgogne Franche-Comté, Dijon 21000, France
| | - David Pertuit
- Université de Bourgogne Franche-Comté, Laboratoire de Pharmacognosie EA 4267, Dijon 21079, France
| | - Nadia Rossin
- Agroécologie, AgroSup Dijon, INRAE, Univ. Bourgogne Franche-Comté, Dijon 21000, France
| | - Brigitte Darchy
- Agroécologie, AgroSup Dijon, INRAE, Univ. Bourgogne Franche-Comté, Dijon 21000, France
| | - Grégoire Aubert
- Agroécologie, AgroSup Dijon, INRAE, Univ. Bourgogne Franche-Comté, Dijon 21000, France
| | - Christine Le Signor
- Agroécologie, AgroSup Dijon, INRAE, Univ. Bourgogne Franche-Comté, Dijon 21000, France
| | - Olivier Berdeaux
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRAE, Université Bourgogne Franche-Comté, Dijon 21000, France
| | | | - Richard Thompson
- Agroécologie, AgroSup Dijon, INRAE, Univ. Bourgogne Franche-Comté, Dijon 21000, France
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24
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Kurze E, Wüst M, Liao J, McGraphery K, Hoffmann T, Song C, Schwab W. Structure-function relationship of terpenoid glycosyltransferases from plants. Nat Prod Rep 2021; 39:389-409. [PMID: 34486004 DOI: 10.1039/d1np00038a] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Covering: up to 2021Terpenoids are physiologically active substances that are of great importance to humans. Their physicochemical properties are modified by glycosylation, in terms of polarity, volatility, solubility and reactivity, and their bioactivities are altered accordingly. Significant scientific progress has been made in the functional study of glycosylated terpenes and numerous plant enzymes involved in regio- and enantioselective glycosylation have been characterized, a reaction that remains chemically challenging. Crucial clues to the mechanism of terpenoid glycosylation were recently provided by the first crystal structures of a diterpene glycosyltransferase UGT76G1. Here, we review biochemically characterized terpenoid glycosyltransferases, compare their functions and primary structures, discuss their acceptor and donor substrate tolerance and product specificity, and elaborate features of the 3D structures of the first terpenoid glycosyltransferases from plants.
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Affiliation(s)
- Elisabeth Kurze
- Biotechnology of Natural Products, TUM School of Life Sciences, Technische Universität München, Liesel-Beckmann-Str. 1, 85354 Freising, Germany.
| | - Matthias Wüst
- Chair of Food Chemistry, Institute of Nutritional and Food Sciences, University of Bonn, Endenicher Allee 19C, 53115 Bonn, Germany.
| | - Jieren Liao
- Biotechnology of Natural Products, TUM School of Life Sciences, Technische Universität München, Liesel-Beckmann-Str. 1, 85354 Freising, Germany.
| | - Kate McGraphery
- Biotechnology of Natural Products, TUM School of Life Sciences, Technische Universität München, Liesel-Beckmann-Str. 1, 85354 Freising, Germany.
| | - Thomas Hoffmann
- Biotechnology of Natural Products, TUM School of Life Sciences, Technische Universität München, Liesel-Beckmann-Str. 1, 85354 Freising, Germany.
| | - Chuankui Song
- State Key Laboratory of Tea Plant Biology and Utilization, International Joint Laboratory on Tea Chemistry and Health Effects, Anhui Agricultural University Hefei, Anhui 230036, People's Republic of China.
| | - Wilfried Schwab
- Biotechnology of Natural Products, TUM School of Life Sciences, Technische Universität München, Liesel-Beckmann-Str. 1, 85354 Freising, Germany. .,State Key Laboratory of Tea Plant Biology and Utilization, International Joint Laboratory on Tea Chemistry and Health Effects, Anhui Agricultural University Hefei, Anhui 230036, People's Republic of China.
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25
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Chopra P, Chhillar H, Kim YJ, Jo IH, Kim ST, Gupta R. Phytochemistry of ginsenosides: Recent advancements and emerging roles. Crit Rev Food Sci Nutr 2021; 63:613-640. [PMID: 34278879 DOI: 10.1080/10408398.2021.1952159] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Ginsenosides, a group of tetracyclic saponins, accounts for the nutraceutical and pharmaceutical relevance of the ginseng (Panax sp.) herb. Owing to the associated therapeutic potential of ginsenosides, their demand has been increased significantly in the last two decades. However, a slow growth cycle, low seed production, and long generation time of ginseng have created a gap between the demand and supply of ginsenosides. The biosynthesis of ginsenosides involves an intricate network of pathways with multiple oxidation and glycosylation reactions. However, the exact functions of some of the associated genes/proteins are still not completely deciphered. Moreover, ginsenoside estimation and extraction using analytical techniques are not feasible with high efficiency. The present review is a step forward in recapitulating the comprehensive aspects of ginsenosides including their distribution, structural diversity, biotransformation, and functional attributes in both plants and animals including humans. Moreover, ginsenoside biosynthesis in the potential plant sources and their metabolism in the human body along with major regulators and stimulators affecting ginsenoside biosynthesis have also been discussed. Furthermore, this review consolidates biotechnological interventions to enhance the biosynthesis of ginsenosides in their potential sources and advancements in the development of synthetic biosystems for efficient ginsenoside biosynthesis to meet their rising industrial demands.
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Affiliation(s)
- Priyanka Chopra
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
| | - Himanshu Chhillar
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
| | - Yu-Jin Kim
- Department of Life Science and Environmental Biochemistry, College of Natural Resources and Life Sciences, Pusan National University, Miryang, South Korea
| | - Ick Hyun Jo
- Department of Herbal Crop Research, Rural Development Administration, Eumseong, South Korea
| | - Sun Tae Kim
- Department of Plant Bioscience, College of Natural Resources and Life Sciences, Pusan National University, Miryang, South Korea
| | - Ravi Gupta
- Department of Botany, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India.,Department of Forestry, Environment, and Systems, College of Science and Technology, Kookmin University, Seoul, South Korea
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26
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Kim DG, Lyu JI, Lim YJ, Kim JM, Hung NN, Eom SH, Kim SH, Kim JB, Bae CH, Kwon SJ. Differential Gene Expression Associated with Altered Isoflavone and Fatty Acid Contents in Soybean Mutant Diversity Pool. PLANTS 2021; 10:plants10061037. [PMID: 34063981 PMCID: PMC8224098 DOI: 10.3390/plants10061037] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/18/2021] [Accepted: 05/18/2021] [Indexed: 11/28/2022]
Abstract
Soybean seeds are consumed worldwide owing to their nutritional value and health benefits. In this study we investigated the metabolic properties of 208 soybean mutant diversity pool (MDP) lines by measuring the isoflavone and fatty acid contents of the seed. The total isoflavone content (TIC) ranged from 0.88 mg/g to 7.12 mg/g and averaged 3.08 mg/g. The proportion of oleic acid among total fatty acids (TFA) ranged from 0.38% to 24.66% and averaged 11.02%. Based on the TIC and TFA among the 208 MDP lines, we selected six lines with altered isoflavone content and six lines with altered oleic acid content compared with those of the corresponding wild-types for measuring gene expression. Each of twelve genes from the isoflavone and fatty acid biosynthesis pathways were analyzed at three different seed developmental stages. Isoflavone biosynthetic genes, including CHI1A, IFS1, and IFS2, showed differences in stages and expression patterns among individuals and wild-types, whereas MaT7 showed consistently higher expression levels in three mutants with increased isoflavone content at stage 1. Expression patterns of the 12 fatty acid biosynthetic genes were classifiable into two groups that reflected the developmental stages of the seeds. The results will be useful for functional analysis of the regulatory genes involved in the isoflavone and fatty acid biosynthetic pathways in soybean.
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Affiliation(s)
- Dong-Gun Kim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongup 56212, Korea; (D.-G.K.); (J.-I.L.); (J.-M.K.); (N.-N.H.); (S.-H.K.); (J.-B.K.)
| | - Jae-Il Lyu
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongup 56212, Korea; (D.-G.K.); (J.-I.L.); (J.-M.K.); (N.-N.H.); (S.-H.K.); (J.-B.K.)
| | - You-Jin Lim
- Department of Horticultural Biotechnology, Institute of Life Sciences & Resources, Kyung Hee University, Yongin 17104, Korea; (Y.-J.L.); (S.-H.E.)
| | - Jung-Min Kim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongup 56212, Korea; (D.-G.K.); (J.-I.L.); (J.-M.K.); (N.-N.H.); (S.-H.K.); (J.-B.K.)
| | - Nguyen-Ngoc Hung
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongup 56212, Korea; (D.-G.K.); (J.-I.L.); (J.-M.K.); (N.-N.H.); (S.-H.K.); (J.-B.K.)
| | - Seok-Hyun Eom
- Department of Horticultural Biotechnology, Institute of Life Sciences & Resources, Kyung Hee University, Yongin 17104, Korea; (Y.-J.L.); (S.-H.E.)
| | - Sang-Hoon Kim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongup 56212, Korea; (D.-G.K.); (J.-I.L.); (J.-M.K.); (N.-N.H.); (S.-H.K.); (J.-B.K.)
| | - Jin-Baek Kim
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongup 56212, Korea; (D.-G.K.); (J.-I.L.); (J.-M.K.); (N.-N.H.); (S.-H.K.); (J.-B.K.)
| | - Chang-Hyu Bae
- Department of Life Resources, Graduate School, Sunchon National University, Suncheon 57922, Korea
- Correspondence: (C.-H.B.); (S.-J.K.); Tel.: +82-61-750-3214 (C.-H.B.); +82-63-570-3312 (S.-J.K.)
| | - Soon-Jae Kwon
- Advanced Radiation Technology Institute, Korea Atomic Energy Research Institute, Jeongup 56212, Korea; (D.-G.K.); (J.-I.L.); (J.-M.K.); (N.-N.H.); (S.-H.K.); (J.-B.K.)
- Correspondence: (C.-H.B.); (S.-J.K.); Tel.: +82-61-750-3214 (C.-H.B.); +82-63-570-3312 (S.-J.K.)
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27
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Adiji OA, Docampo-Palacios ML, Alvarez-Hernandez A, Pasinetti GM, Wang X, Dixon RA. UGT84F9 is the major flavonoid UDP-glucuronosyltransferase in Medicago truncatula. PLANT PHYSIOLOGY 2021; 185:1617-1637. [PMID: 33694362 PMCID: PMC8133618 DOI: 10.1093/plphys/kiab016] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 01/07/2021] [Indexed: 06/12/2023]
Abstract
Mammalian phase II metabolism of dietary plant flavonoid compounds generally involves substitution with glucuronic acid. In contrast, flavonoids mainly exist as glucose conjugates in plants, and few plant UDP-glucuronosyltransferase enzymes have been identified to date. In the model legume Medicago truncatula, the major flavonoid compounds in the aerial parts of the plant are glucuronides of the flavones apigenin and luteolin. Here we show that the M. truncatula glycosyltransferase UGT84F9 is a bi-functional glucosyl/glucuronosyl transferase in vitro, with activity against a wide range of flavonoid acceptor molecules including flavones. However, analysis of metabolite profiles in leaves and roots of M. truncatula ugt84f9 loss of function mutants revealed that the enzyme is essential for formation of flavonoid glucuronides, but not most flavonoid glucosides, in planta. We discuss the use of plant UGATs for the semi-synthesis of flavonoid phase II metabolites for clinical studies.
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Affiliation(s)
- Olubu A Adiji
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, Texas 76203
| | - Maite L Docampo-Palacios
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, Texas 76203
| | - Anislay Alvarez-Hernandez
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, Texas 76203
| | - Giulio M Pasinetti
- Department of Psychiatry, The Mount Sinai School of Medicine, New York City, New York 10029
| | - Xiaoqiang Wang
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, Texas 76203
| | - Richard A Dixon
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, Texas 76203
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28
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Li W, Sun W, Li C. Engineered microorganisms and enzymes for efficiently synthesizing plant natural products. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.12.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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29
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Huang H, Liang J, Tan Q, Ou L, Li X, Zhong C, Huang H, Møller IM, Wu X, Song S. Insights into triterpene synthesis and unsaturated fatty-acid accumulation provided by chromosomal-level genome analysis of Akebia trifoliata subsp. australis. HORTICULTURE RESEARCH 2021; 8:33. [PMID: 33518712 PMCID: PMC7848005 DOI: 10.1038/s41438-020-00458-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 11/16/2020] [Accepted: 11/20/2020] [Indexed: 05/10/2023]
Abstract
Akebia trifoliata subsp. australis is a well-known medicinal and potential woody oil plant in China. The limited genetic information available for A. trifoliata subsp. australis has hindered its exploitation. Here, a high-quality chromosome-level genome sequence of A. trifoliata subsp. australis is reported. The de novo genome assembly of 682.14 Mb was generated with a scaffold N50 of 43.11 Mb. The genome includes 25,598 protein-coding genes, and 71.18% (485.55 Mb) of the assembled sequences were identified as repetitive sequences. An ongoing massive burst of long terminal repeat (LTR) insertions, which occurred ~1.0 million years ago, has contributed a large proportion of LTRs in the genome of A. trifoliata subsp. australis. Phylogenetic analysis shows that A. trifoliata subsp. australis is closely related to Aquilegia coerulea and forms a clade with Papaver somniferum and Nelumbo nucifera, which supports the well-established hypothesis of a close relationship between basal eudicot species. The expansion of UDP-glucoronosyl and UDP-glucosyl transferase gene families and β-amyrin synthase-like genes and the exclusive contraction of terpene synthase gene families may be responsible for the abundant oleanane-type triterpenoids in A. trifoliata subsp. australis. Furthermore, the acyl-ACP desaturase gene family, including 12 stearoyl-acyl-carrier protein desaturase (SAD) genes, has expanded exclusively. A combined transcriptome and fatty-acid analysis of seeds at five developmental stages revealed that homologs of SADs, acyl-lipid desaturase omega fatty acid desaturases (FADs), and oleosins were highly expressed, consistent with the rapid increase in the content of fatty acids, especially unsaturated fatty acids. The genomic sequences of A. trifoliata subsp. australis will be a valuable resource for comparative genomic analyses and molecular breeding.
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Affiliation(s)
- Hui Huang
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province, College of Biological and Food Engineering, Huaihua University, Huaihua, 418000, China
- Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China
| | - Juan Liang
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province, College of Biological and Food Engineering, Huaihua University, Huaihua, 418000, China
| | - Qi Tan
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province, College of Biological and Food Engineering, Huaihua University, Huaihua, 418000, China
| | - Linfeng Ou
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province, College of Biological and Food Engineering, Huaihua University, Huaihua, 418000, China
| | - Xiaolin Li
- State Key Laboratory Breeding Base of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Science, Beijing, 100700, China
| | - Caihong Zhong
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province, College of Biological and Food Engineering, Huaihua University, Huaihua, 418000, China
| | - Huilin Huang
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province, College of Biological and Food Engineering, Huaihua University, Huaihua, 418000, China
| | - Ian Max Møller
- Department of Molecular Biology and Genetics, Aarhus University, Flakkebjerg, DK-4200, Slagelse, Denmark
| | - Xianjin Wu
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province, College of Biological and Food Engineering, Huaihua University, Huaihua, 418000, China
| | - Songquan Song
- Key Laboratory of Research and Utilization of Ethnomedicinal Plant Resources of Hunan Province, College of Biological and Food Engineering, Huaihua University, Huaihua, 418000, China.
- Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China.
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Scossa F, Alseekh S, Fernie AR. Integrating multi-omics data for crop improvement. JOURNAL OF PLANT PHYSIOLOGY 2021; 257:153352. [PMID: 33360148 DOI: 10.1016/j.jplph.2020.153352] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/13/2020] [Accepted: 12/14/2020] [Indexed: 05/26/2023]
Abstract
Our agricultural systems are now in urgent need to secure food for a growing world population. To meet this challenge, we need a better characterization of plant genetic and phenotypic diversity. The combination of genomics, transcriptomics and metabolomics enables a deeper understanding of the mechanisms underlying the complex architecture of many phenotypic traits of agricultural relevance. We review the recent advances in plant genomics to see how these can be integrated with broad molecular profiling approaches to improve our understanding of plant phenotypic variation and inform crop breeding strategies.
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Affiliation(s)
- Federico Scossa
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476, Potsdam, Golm, Germany; Council for Agricultural Research and Economics (CREA), Research Centre for Genomics and Bioinformatics (CREA-GB), 00178, Rome, Italy.
| | - Saleh Alseekh
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476, Potsdam, Golm, Germany; Center of Plant Systems Biology and Biotechnology (CPSBB), Plovdiv, Bulgaria
| | - Alisdair R Fernie
- Max-Planck-Institut für Molekulare Pflanzenphysiologie, 14476, Potsdam, Golm, Germany; Center of Plant Systems Biology and Biotechnology (CPSBB), Plovdiv, Bulgaria.
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31
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Yao L, Wang J, He J, Huang L, Gao W. Endophytes, biotransforming microorganisms, and engineering microbial factories for triterpenoid saponins production. Crit Rev Biotechnol 2021; 41:249-272. [PMID: 33472430 DOI: 10.1080/07388551.2020.1869691] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Triterpenoid saponins are structurally diverse secondary metabolites. They are the main active ingredient of many medicinal plants and have a wide range of pharmacological effects. Traditional production of triterpenoid saponins, directly extracted from cultivated plants, cannot meet the rapidly growing demand of pharmaceutical industry. Microorganisms with triterpenoid saponins production ability (especially Agrobacterium genus) and biotransformation ability, such as fungal species in Armillaria and Aspergillus genera and bacterial species in Bacillus and Intestinal microflora, represent a valuable source of active metabolites. With the development of synthetic biology, engineering microorganisms acquired more potential in terms of triterpenoid saponins production. This review focusses on potential mechanisms and the high yield strategies of microorganisms with inherent production or biotransformation ability of triterpenoid saponins. Advances in the engineering of microorganisms, such as Saccharomyces cerevisiae, Yarrowia lipolytica, and Escherichia coli, for the biosynthesis triterpenoid saponins de novo have also been reported. Strategies to increase the yield of triterpenoid saponins in engineering microorganisms are summarized following four aspects, that is, introduction of high efficient gene, optimization of enzyme activity, enhancement of metabolic flux to target compounds, and optimization of fermentation conditions. Furthermore, the challenges and future directions for improving the yield of triterpenoid saponins biosynthesis in engineering microorganisms are discussed.
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Affiliation(s)
- Lu Yao
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.,Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, China
| | - Juan Wang
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.,Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, China
| | - Junping He
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.,Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, China
| | - Luqi Huang
- National Resource Center for Chinese Meteria Medica, China Academy of Chinese Medical Sciences, Beijing China
| | - Wenyuan Gao
- Tianjin Key Laboratory for Modern Drug Delivery and High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin, China.,Key Laboratory of Systems Bioengineering, Ministry of Education, Tianjin University, Tianjin, China
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32
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Guo H, Wang H, Huo YX. Engineering Critical Enzymes and Pathways for Improved Triterpenoid Biosynthesis in Yeast. ACS Synth Biol 2020; 9:2214-2227. [PMID: 32786348 DOI: 10.1021/acssynbio.0c00124] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Triterpenoids represent a diverse group of phytochemicals that are widely distributed in the plant kingdom and have many biological activities. The heterologous production of triterpenoids in Saccharomyces cerevisiae has been successfully implemented by introducing various triterpenoid biosynthetic pathways. By engineering related enzymes as well as through yeast metabolism, the yield of various triterpenoids is significantly improved from the milligram per liter scale to the gram per liter scale. This achievement demonstrates that engineering critical enzymes is considered a potential strategy to overcome the main hurdles of the industrial application of these potent natural products. Here, we review strategies for designing enzymes to improve the yield of triterpenoids in S. cerevisiae in terms of three main aspects: 1, elevating the supply of the precursor 2,3-oxidosqualene; 2, optimizing triterpenoid-involved reactions; and 3, lowering the competition of the native sterol pathway. Then, we provide challenges and prospects for further enhancing triterpenoid production in S. cerevisiae.
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Affiliation(s)
- Hao Guo
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Huiyan Wang
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, 100081, P. R. China
| | - Yi-Xin Huo
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing, 100081, P. R. China
- SIP-UCLA Institute for Technology Advancement, Suzhou, 215123, P. R. China
- Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao, 266101, P. R. China
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33
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Zhu C, Lu Q, Zhou X, Li J, Yue J, Wang Z, Pan S. Metabolic variations of organic acids, amino acids, fatty acids and aroma compounds in the pulp of different pummelo varieties. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109445] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Characterization of the UDP-glycosyltransferase UGT72 Family in Poplar and Identification of Genes Involved in the Glycosylation of Monolignols. Int J Mol Sci 2020; 21:ijms21145018. [PMID: 32708651 PMCID: PMC7404001 DOI: 10.3390/ijms21145018] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 07/11/2020] [Accepted: 07/13/2020] [Indexed: 12/28/2022] Open
Abstract
Monolignols are the building blocks for lignin polymerization in the apoplastic domain. Monolignol biosynthesis, transport, storage, glycosylation, and deglycosylation are the main biological processes partaking in their homeostasis. In Arabidopsis thaliana, members of the uridine diphosphate-dependent glucosyltransferases UGT72E and UGT72B subfamilies have been demonstrated to glycosylate monolignols. Here, the poplar UGT72 family, which is clustered into four groups, was characterized: Group 1 UGT72AZ1 and UGT72AZ2, homologs of Arabidopsis UGT72E1-3, as well as group 4 UGT72B37 and UGT72B39, homologs of Arabidopsis UGT72B1-3, glycosylate monolignols. In addition, promoter-GUS analyses indicated that poplar UGT72 members are expressed within vascular tissues. At the subcellular level, poplar UGT72s belonging to group 1 and group 4 were found to be associated with the nucleus and the endoplasmic reticulum. However, UGT72A2, belonging to group 2, was localized in bodies associated with chloroplasts, as well as possibly in chloroplasts. These results show a partial conservation of substrate recognition between Arabidopsis and poplar homologs, as well as divergent functions between different groups of the UGT72 family, for which the substrates remain unknown.
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Cheng Y, Liu H, Tong X, Liu Z, Zhang X, Li D, Jiang X, Yu X. Identification and analysis of CYP450 and UGT supergene family members from the transcriptome of Aralia elata (Miq.) seem reveal candidate genes for triterpenoid saponin biosynthesis. BMC PLANT BIOLOGY 2020; 20:214. [PMID: 32404131 PMCID: PMC7218531 DOI: 10.1186/s12870-020-02411-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Accepted: 04/28/2020] [Indexed: 05/12/2023]
Abstract
BACKGROUND Members of the cytochrome P450 (CYP450) and UDP-glycosyltransferase (UGT) gene superfamily have been shown to play essential roles in regulating secondary metabolite biosynthesis. However, the systematic identification of CYP450s and UGTs has not been reported in Aralia elata (Miq.) Seem, a highly valued medicinal plant. RESULTS In the present study, we conducted the RNA-sequencing (RNA-seq) analysis of the leaves, stems, and roots of A. elata, yielding 66,713 total unigenes. Following annotation and KEGG pathway analysis, we were able to identify 64 unigenes related to triterpenoid skeleton biosynthesis, 254 CYP450s and 122 UGTs, respectively. A total of 150 CYP450s and 92 UGTs encoding > 300 amino acid proteins were utilized for phylogenetic and tissue-specific expression analyses. This allowed us to cluster 150 CYP450s into 9 clans and 40 families, and then these CYP450 proteins were further grouped into two primary branches: A-type (53%) and non-A-type (47%). A phylogenetic analysis of 92 UGTs and other plant UGTs led to clustering into 16 groups (A-P). We further assessed the expression patterns of these CYP450 and UGT genes across A. elata tissues, with 23 CYP450 and 16 UGT members being selected for qRT-PCR validation, respectively. From these data, we identified CYP716A295 and CYP716A296 as the candidate genes most likely to be associated with oleanolic acid synthesis, while CYP72A763 and CYP72A776 were identified as being the most likely to play roles in hederagenin biosynthesis. We also selected five unigenes as the best candidates for oleanolic acid 3-O-glucosyltransferase. Finally, we assessed the subcellular localization of three CYP450 proteins within Arabidopsis protoplasts, highlighting the fact that they localize to the endoplasmic reticulum. CONCLUSIONS This study presents a systematic analysis of the CYP450 and UGT gene family in A. elata and provides a foundation for further functional characterization of these two multigene families.
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Affiliation(s)
- Yao Cheng
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
- Key Laboratory of Biology and Genetic Improvement of Horticulture Crops (Northeast Region), Ministry of Agriculture, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Hanbing Liu
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
- Key Laboratory of Biology and Genetic Improvement of Horticulture Crops (Northeast Region), Ministry of Agriculture, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Xuejiao Tong
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
- Key Laboratory of Biology and Genetic Improvement of Horticulture Crops (Northeast Region), Ministry of Agriculture, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Zaimin Liu
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
- Key Laboratory of Biology and Genetic Improvement of Horticulture Crops (Northeast Region), Ministry of Agriculture, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Xin Zhang
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
- Key Laboratory of Biology and Genetic Improvement of Horticulture Crops (Northeast Region), Ministry of Agriculture, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Dalong Li
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
- Key Laboratory of Biology and Genetic Improvement of Horticulture Crops (Northeast Region), Ministry of Agriculture, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China
| | - Xinmei Jiang
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China.
- Key Laboratory of Biology and Genetic Improvement of Horticulture Crops (Northeast Region), Ministry of Agriculture, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China.
| | - Xihong Yu
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China.
- Key Laboratory of Biology and Genetic Improvement of Horticulture Crops (Northeast Region), Ministry of Agriculture, Northeast Agricultural University, Harbin, 150030, Heilongjiang, China.
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Fellenberg C, Corea O, Yan LH, Archinuk F, Piirtola EM, Gordon H, Reichelt M, Brandt W, Wulff J, Ehlting J, Peter Constabel C. Discovery of salicyl benzoate UDP-glycosyltransferase, a central enzyme in poplar salicinoid phenolic glycoside biosynthesis. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 102:99-115. [PMID: 31736216 DOI: 10.1111/tpj.14615] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 09/26/2019] [Accepted: 10/28/2019] [Indexed: 05/12/2023]
Abstract
The salicinoids are anti-herbivore phenolic glycosides unique to the Salicaceae (Populus and Salix). They consist of a salicyl alcohol glucoside core, which is usually further acylated with benzoic, cinnamic or phenolic acids. While salicinoid structures are well known, their biosynthesis remains enigmatic. Recently, two enzymes from poplar, salicyl alcohol benzoyl transferase and benzyl alcohol benzoyl transferase, were shown to catalyze the production of salicyl benzoate, a predicted potential intermediate in salicinoid biosynthesis. Here, we used transcriptomics and co-expression analysis with these two genes to identify two UDP-glucose-dependent glycosyltransferases (UGT71L1 and UGT78M1) as candidate enzymes in this pathway. Both recombinant enzymes accepted only salicyl benzoate, salicylaldehyde and 2-hydroxycinnamic acid as glucose acceptors. Knocking out the UGT71L1 gene by CRISPR/Cas9 in poplar hairy root cultures led to the complete loss of salicortin, tremulacin and tremuloidin, and a partial reduction of salicin content. This demonstrated that UGT71L1 is required for synthesis of the major salicinoids, and suggested that an additional route can lead to salicin. CRISPR/Cas9 knockouts for UGT78M1 were not successful, and its in vivo role thus remains to be determined. Although it has a similar substrate preference and predicted structure as UGT71L1, it appears not to contribute to the synthesis of salicortin, tremulacin and tremuloidin, at least in roots. The demonstration of UGT71L1 as an enzyme of salicinoid biosynthesis will open up new avenues for the elucidation of this pathway.
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Affiliation(s)
- Christin Fellenberg
- Centre for Forest Biology and Department of Biology, University of Victoria, Victoria, British Columbia, Canada
| | - Oliver Corea
- Centre for Forest Biology and Department of Biology, University of Victoria, Victoria, British Columbia, Canada
| | - Lok-Hang Yan
- Department of Chemistry, University of Victoria, Victoria, British Columbia, Canada
| | - Finn Archinuk
- Centre for Forest Biology and Department of Biology, University of Victoria, Victoria, British Columbia, Canada
| | - Eerik-Mikael Piirtola
- Centre for Forest Biology and Department of Biology, University of Victoria, Victoria, British Columbia, Canada
- Department of Chemistry, University of Turku, Turku, Finland
| | - Harley Gordon
- Centre for Forest Biology and Department of Biology, University of Victoria, Victoria, British Columbia, Canada
| | - Michael Reichelt
- Department of Biochemistry, Max-Planck Institute for Chemical Ecology, Jena, Germany
| | - Wolfgang Brandt
- Department of Bioorganic Chemistry, Leibniz Institute for Plant Biochemistry, Halle, Germany
| | - Jeremy Wulff
- Department of Chemistry, University of Victoria, Victoria, British Columbia, Canada
| | - Jürgen Ehlting
- Centre for Forest Biology and Department of Biology, University of Victoria, Victoria, British Columbia, Canada
| | - C Peter Constabel
- Centre for Forest Biology and Department of Biology, University of Victoria, Victoria, British Columbia, Canada
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37
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Krishnamurthy P, Tsukamoto C, Ishimoto M. Reconstruction of the Evolutionary Histories of UGT Gene Superfamily in Legumes Clarifies the Functional Divergence of Duplicates in Specialized Metabolism. Int J Mol Sci 2020; 21:E1855. [PMID: 32182686 PMCID: PMC7084467 DOI: 10.3390/ijms21051855] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 03/03/2020] [Accepted: 03/05/2020] [Indexed: 01/08/2023] Open
Abstract
Plant uridine 5'-diphosphate glycosyltransferases (UGTs) influence the physiochemical properties of several classes of specialized metabolites including triterpenoids via glycosylation. To uncover the evolutionary past of UGTs of soyasaponins (a group of beneficial triterpene glycosides widespread among Leguminosae), the UGT gene superfamily in Medicago truncatula, Glycine max, Phaseolus vulgaris, Lotus japonicus, and Trifolium pratense genomes were systematically mined. A total of 834 nonredundant UGTs were identified and categorized into 98 putative orthologous loci (POLs) using tree-based and graph-based methods. Major key findings in this study were of, (i) 17 POLs represent potential catalysts for triterpene glycosylation in legumes, (ii) UGTs responsible for the addition of second (UGT73P2: galactosyltransferase and UGT73P10: arabinosyltransferase) and third (UGT91H4: rhamnosyltransferase and UGT91H9: glucosyltransferase) sugars of the C-3 sugar chain of soyasaponins were resulted from duplication events occurred before and after the hologalegina-millettoid split, respectively, and followed neofunctionalization in species-/ lineage-specific manner, and (iii) UGTs responsible for the C-22-O glycosylation of group A (arabinosyltransferase) and DDMP saponins (DDMPtransferase) and the second sugar of C-22 sugar chain of group A saponins (UGT73F2: glucosyltransferase) may all share a common ancestor. Our findings showed a way to trace the evolutionary history of UGTs involved in specialized metabolism.
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Affiliation(s)
| | - Chigen Tsukamoto
- Faculty of Agriculture, Iwate University, Morioka 020-8550, Japan
| | - Masao Ishimoto
- Institute of Crop Science, NARO, 2-1-2 Kannondai, Tsukuba 305-8518, Japan
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Comparative transcriptome analysis of rhizome nodes and internodes in Panax. japonicus var. major reveals candidate genes involved in the biosynthesis of triterpenoid saponins. Genomics 2020; 112:1112-1119. [DOI: 10.1016/j.ygeno.2019.06.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/04/2019] [Accepted: 06/21/2019] [Indexed: 02/07/2023]
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39
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Li J, Yang J, Mu S, Shang N, Liu C, Zhu Y, Cai Y, Liu P, Lin J, Liu W, Sun Y, Ma Y. Efficient O-Glycosylation of Triterpenes Enabled by Protein Engineering of Plant Glycosyltransferase UGT74AC1. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05232] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jiao Li
- National Engineering Laboratory for Industrial Enzymes, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 Xi Qi Dao, Tianjin Airport Economic Area, Tianjin 300308, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiangang Yang
- National Engineering Laboratory for Industrial Enzymes, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 Xi Qi Dao, Tianjin Airport Economic Area, Tianjin 300308, China
| | - Shicheng Mu
- National Engineering Laboratory for Industrial Enzymes, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 Xi Qi Dao, Tianjin Airport Economic Area, Tianjin 300308, China
| | - Na Shang
- National Engineering Laboratory for Industrial Enzymes, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 Xi Qi Dao, Tianjin Airport Economic Area, Tianjin 300308, China
| | - Cui Liu
- National Engineering Laboratory for Industrial Enzymes, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 Xi Qi Dao, Tianjin Airport Economic Area, Tianjin 300308, China
| | - Yueming Zhu
- National Engineering Laboratory for Industrial Enzymes, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 Xi Qi Dao, Tianjin Airport Economic Area, Tianjin 300308, China
| | - Yi Cai
- National Engineering Laboratory for Industrial Enzymes, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 Xi Qi Dao, Tianjin Airport Economic Area, Tianjin 300308, China
| | - Pi Liu
- National Engineering Laboratory for Industrial Enzymes, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 Xi Qi Dao, Tianjin Airport Economic Area, Tianjin 300308, China
| | - Jianping Lin
- National Engineering Laboratory for Industrial Enzymes, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 Xi Qi Dao, Tianjin Airport Economic Area, Tianjin 300308, China
| | - Weidong Liu
- National Engineering Laboratory for Industrial Enzymes, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 Xi Qi Dao, Tianjin Airport Economic Area, Tianjin 300308, China
| | - Yuanxia Sun
- National Engineering Laboratory for Industrial Enzymes, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 Xi Qi Dao, Tianjin Airport Economic Area, Tianjin 300308, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanhe Ma
- National Engineering Laboratory for Industrial Enzymes, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, 32 Xi Qi Dao, Tianjin Airport Economic Area, Tianjin 300308, China
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40
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Biocatalytic Synthesis of Calycosin-7-O-β-D-Glucoside with Uridine Diphosphate–Glucose Regeneration System. Catalysts 2020. [DOI: 10.3390/catal10020258] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Calycosin-7-O-β-D-glucoside (Cy7G) is one of the principal components of Radix astragali. This isoflavonoid glucoside is regarded as an indicator to assess the quality of R. astragali and exhibits diverse pharmacological activities. In this study, uridine diphosphate-dependent glucosyltransferase (UGT) UGT88E18 was isolated from Glycine max and expressed in Escherichia coli. Recombinant UGT88E18 could selectively and effectively glucosylate the C7 hydroxyl group of calycosin to synthesize Cy7G. A one-pot reaction by coupling UGT88E18 to sucrose synthase (SuSy) from G. max was developed. The UGT88E18–SuSy cascade reaction could recycle the costly uridine diphosphate glucose (UDPG) from cheap sucrose and catalytic amounts of uridine diphosphate (UDP). The important factors for UGT88E18–SuSy cascade reaction, including UGT88E18/SuSy ratios, different temperatures, and pH values, different concentrations of dimethyl sulfoxide (DMSO), UDP, sucrose, and calycosin, were optimized. We produced 10.5 g L−1 Cy7G in the optimal reaction conditions by the stepwise addition of calycosin. The molar conversion of calycosin was 97.5%, with a space–time yield of 747 mg L−1 h−1 and a UDPG recycle of 78 times. The present study provides a new avenue for the efficient and cost-effective semisynthesis of Cy7G and other valuable isoflavonoid glucosides by UGT–SuSy cascade reaction.
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Cárdenas PD, Almeida A, Bak S. Evolution of Structural Diversity of Triterpenoids. FRONTIERS IN PLANT SCIENCE 2019; 10:1523. [PMID: 31921225 PMCID: PMC6929605 DOI: 10.3389/fpls.2019.01523] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 11/01/2019] [Indexed: 05/19/2023]
Abstract
Plants have evolved to produce a blend of specialized metabolites that serve functional roles in plant adaptation. Among them, triterpenoids are one of the largest subclasses of such specialized metabolites, with more than 14,000 known structures. They play a role in plant defense and development and have potential applications within food and pharma. Triterpenoids are cyclized from oxidized squalene precursors by oxidosqualene cyclases, creating more than 100 different cyclical triterpene scaffolds. This limited number of scaffolds is the first step towards creating the vast structural diversity of triterpenoids followed by extensive diversification, in particular, by oxygenation and glycosylation. Gene duplication, divergence, and selection are major forces that drive triterpenoid structural diversification. The triterpenoid biosynthetic genes can be organized in non-homologous gene clusters, such as in Avena spp., Cucurbitaceae and Solanum spp., or scattered along plant chromosomes as in Barbarea vulgaris. Paralogous genes organized as tandem repeats reflect the extended gene duplication activities in the evolutionary history of the triterpenoid saponin pathways, as seen in B. vulgaris. We review and discuss examples of convergent and divergent evolution in triterpenoid biosynthesis, and the apparent mechanisms occurring in plants that drive their increasing structural diversity within and across species. Using B. vulgaris' saponins as examples, we discuss the impact a single structural modification can have on the structure of a triterpenoid and how this affect its biological properties. These examples provide insight into how plants continuously evolve their specialized metabolome, opening the way to study uncharacterized triterpenoid biosynthetic pathways.
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Affiliation(s)
| | | | - Søren Bak
- Department of Plant and Environmental Science, University of Copenhagen, Frederiksberg, Denmark
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42
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Louveau T, Osbourn A. The Sweet Side of Plant-Specialized Metabolism. Cold Spring Harb Perspect Biol 2019; 11:cshperspect.a034744. [PMID: 31235546 DOI: 10.1101/cshperspect.a034744] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Glycosylation plays a major role in the structural diversification of plant natural products. It influences the properties of molecules by modifying the reactivity and solubility of the corresponding aglycones, so influencing cellular localization and bioactivity. Glycosylation of plant natural products is usually carried out by uridine diphosphate(UDP)-dependent glycosyltransferases (UGTs) belonging to the carbohydrate-active enzyme glycosyltransferase 1 (GT1) family. These enzymes transfer sugars from UDP-activated sugar moieties to small hydrophobic acceptor molecules. Plant GT1s generally show high specificity for their sugar donors and recognize a single UDP sugar as their substrate. In contrast, they are generally promiscuous with regard to acceptors, making them attractive biotechnological tools for small molecule glycodiversification. Although microbial hosts have traditionally been used for heterologous engineering of plant-derived glycosides, transient plant expression technology offers a potentially disruptive platform for rapid characterization of new plant glycosyltransferases and biosynthesis of complex glycosides.
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Affiliation(s)
- Thomas Louveau
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, United Kingdom
| | - Anne Osbourn
- Department of Metabolic Biology, John Innes Centre, Norwich Research Park, Norwich NR4 7UH, United Kingdom
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Ma B, Liu X, Lu Y, Ma X, Wu X, Wang X, Jia M, Su P, Tong Y, Guan H, Jiang Z, Gao J, Huang L, Gao W. A specific UDP-glucosyltransferase catalyzes the formation of triptophenolide glucoside from Tripterygium wilfordii Hook. f. PHYTOCHEMISTRY 2019; 166:112062. [PMID: 31299395 DOI: 10.1016/j.phytochem.2019.112062] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 06/25/2019] [Accepted: 06/30/2019] [Indexed: 06/10/2023]
Abstract
Tripterygium wilfordii Hook. f. is a perennial woody vine member of the Celastraceae family. As a traditional Chinese medicine, it contains complex chemical components and exerts various pharmacological activities. In the present study, we identified a glucosyltransferase, TwUGT1, that can catalyze the synthesis of an abietane-type diterpene glucoside, namely, triptophenolide14-O-beta-D-glucopyranoside, and investigated the pharmacological activity of triptophenolide glucoside in diverse cancer cells. Triptophenolide glucoside exhibited significant inhibitory effects on U87-MG, U251, C6, MCF-7, HeLa, K562, and RBL-2H3 cells as determined by pharmacological analysis. The triptophenolide glucoside content of T. wilfordii was analyzed using Agilent Technologies 6490 Triple Quad LC/MS. The glucosyltransferase TwUGT1 belongs to subfamily 88 and group E in family 1. Molecular docking and site-directed mutagenesis of TwUGT1 revealed that the His30, Asp132, Phe134, Thr154, Ala370, Leu376, Gly382, His387, Glu395 and Gln412 residues play crucial roles in the catalytic activity of triptophenolide 14-O-glucosyltransferase. In addition, TwUGT1 was also capable of glucosylating phenolic hydroxyl groups, such as those in liquiritigenin, pinocembrin, 4-methylumbelliferone, phloretin, and rhapontigenin.
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Affiliation(s)
- Baowei Ma
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Xihong Liu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Yun Lu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Xiaochi Ma
- College of Pharmacy, Key Laboratory of Pharmacokinetic and Drug Transport of Liaoning, Academy of Integrative Medicine, Dalian Medical University, Dalian, 116044, China
| | - Xiaoyi Wu
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Xing Wang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Meirong Jia
- Roy J. Carver Department of Biochemistry, Biophysics & Molecular Biology, Iowa State University, Ames, IA, 50011, United States
| | - Ping Su
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yuru Tong
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Hongyu Guan
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Zhouqian Jiang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Jie Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China
| | - Luqi Huang
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Wei Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, 100069, China; School of Pharmaceutical Sciences, Capital Medical University, Beijing, 100069, China; Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, 100069, China.
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Huang Y, Li D, Wang J, Cai Y, Dai Z, Jiang D, Liu C. GuUGT, a glycosyltransferase from Glycyrrhiza uralensis, exhibits glycyrrhetinic acid 3- and 30-O-glycosylation. ROYAL SOCIETY OPEN SCIENCE 2019; 6:191121. [PMID: 31824719 PMCID: PMC6837211 DOI: 10.1098/rsos.191121] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Accepted: 09/08/2019] [Indexed: 06/02/2023]
Abstract
Glycyrrhiza uralensis is a well-known herbal medicine that contains triterpenoid saponins as the predominant bioactive components, and these compounds include glycyrrhetinic acid (GA)-glycoside derivatives. Although two genes encoding UDP-glycosyltransferases (UGTs) that glycosylate these derivates have been functionally characterized in G. uralensis, the mechanisms of glycosylation by other UGTs remain unknown. Based on the available transcriptome data, we isolated a UGT with expression in the roots of G. uralensis. This UGT gene possibly encodes a glucosyltransferase that glycosylates GA derivatives at the 3-OH site. Biochemical analyses revealed that the recombinant UGT enzyme could transfer a glucosyl moiety to the free 3-OH or 30-COOH groups of GA. Furthermore, engineered yeast harbouring genes involved in the biosynthetic pathway for GA-glycoside derivates produced GA-3-O-β-D-glucoside, implying that the enzyme has GA 3-O-glucosyltransferase activity in vivo. Our results could provide a frame for understand the function of the UGT gene family, and also is important for further studies of triterpenoids biosynthesis in G. uralensis.
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Affiliation(s)
- Ying Huang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, People's Republic of China
| | - Da Li
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, People's Republic of China
| | - Jinhe Wang
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, People's Republic of China
| | - Yi Cai
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, People's Republic of China
| | - Zhubo Dai
- Key Laboratory of Systems Microbial Biotechnology, Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, People's Republic of China
| | - Dan Jiang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, People's Republic of China
| | - Chunsheng Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100102, People's Republic of China
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Nomura Y, Seki H, Suzuki T, Ohyama K, Mizutani M, Kaku T, Tamura K, Ono E, Horikawa M, Sudo H, Hayashi H, Saito K, Muranaka T. Functional specialization of UDP-glycosyltransferase 73P12 in licorice to produce a sweet triterpenoid saponin, glycyrrhizin. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2019; 99:1127-1143. [PMID: 31095780 PMCID: PMC6851746 DOI: 10.1111/tpj.14409] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 04/21/2019] [Accepted: 04/30/2019] [Indexed: 05/09/2023]
Abstract
Glycyrrhizin, a sweet triterpenoid saponin found in the roots and stolons of Glycyrrhiza species (licorice), is an important active ingredient in traditional herbal medicine. We previously identified two cytochrome P450 monooxygenases, CYP88D6 and CYP72A154, that produce an aglycone of glycyrrhizin, glycyrrhetinic acid, in Glycyrrhiza uralensis. The sugar moiety of glycyrrhizin, which is composed of two glucuronic acids, makes it sweet and reduces its side-effects. Here, we report that UDP-glycosyltransferase (UGT) 73P12 catalyzes the second glucuronosylation as the final step of glycyrrhizin biosynthesis in G. uralensis; the UGT73P12 produced glycyrrhizin by transferring a glucuronosyl moiety of UDP-glucuronic acid to glycyrrhetinic acid 3-O-monoglucuronide. We also obtained a natural variant of UGT73P12 from a glycyrrhizin-deficient (83-555) strain of G. uralensis. The natural variant showed loss of specificity for UDP-glucuronic acid and resulted in the production of an alternative saponin, glucoglycyrrhizin. These results are consistent with the chemical phenotype of the 83-555 strain, and suggest the contribution of UGT73P12 to glycyrrhizin biosynthesis in planta. Furthermore, we identified Arg32 as the essential residue of UGT73P12 that provides high specificity for UDP-glucuronic acid. These results strongly suggest the existence of an electrostatic interaction between the positively charged Arg32 and the negatively charged carboxy group of UDP-glucuronic acid. The functional arginine residue and resultant specificity for UDP-glucuronic acid are unique to UGT73P12 in the UGT73P subfamily. Our findings demonstrate the functional specialization of UGT73P12 for glycyrrhizin biosynthesis during divergent evolution, and provide mechanistic insights into UDP-sugar selectivity for the rational engineering of sweet triterpenoid saponins.
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Affiliation(s)
- Yuhta Nomura
- Department of BiotechnologyGraduate School of EngineeringOsaka University2‐1 YamadaokaSuitaOsaka565‐0871Japan
- Present address:
RIKEN Center for Sustainable Resource Science2‐1 HirosawaWakoSaitama351‐0198Japan
| | - Hikaru Seki
- Department of BiotechnologyGraduate School of EngineeringOsaka University2‐1 YamadaokaSuitaOsaka565‐0871Japan
- RIKEN Center for Sustainable Resource Science1‐7‐22 Suehiro‐cho, Tsurumi‐kuYokohamaKanagawa230‐0045Japan
| | - Tomonori Suzuki
- Department of BiotechnologyGraduate School of EngineeringOsaka University2‐1 YamadaokaSuitaOsaka565‐0871Japan
| | - Kiyoshi Ohyama
- RIKEN Center for Sustainable Resource Science1‐7‐22 Suehiro‐cho, Tsurumi‐kuYokohamaKanagawa230‐0045Japan
- Department of Chemistry and Materials ScienceTokyo Institute of Technology2‐12‐1 O‐okayama, Meguro‐kuTokyo152‐8551Japan
| | - Masaharu Mizutani
- Graduate School of Agricultural ScienceKobe University1‐1 Rokkodai‐cho, Nada‐kuKobeHyogo657‐8501Japan
| | - Tomomi Kaku
- Department of BiotechnologyGraduate School of EngineeringOsaka University2‐1 YamadaokaSuitaOsaka565‐0871Japan
| | - Keita Tamura
- Department of BiotechnologyGraduate School of EngineeringOsaka University2‐1 YamadaokaSuitaOsaka565‐0871Japan
| | - Eiichiro Ono
- Suntory Global Innovation Center LtdResearch Institute8‐1‐1 Seikadai, Seika‐cho, Soraku‐gunKyoto619‐0284Japan
| | - Manabu Horikawa
- Suntory Foundation for Life SciencesBioorganic Research Institute8‐1‐1 Seikadai, Seika‐cho, Soraku‐gunKyoto619‐0284Japan
| | - Hiroshi Sudo
- Tokiwa Phytochemical Co., Ltd158 KinokoSakuraChiba285‐0801Japan
- Graduate School of Pharmaceutical SciencesChiba University1‐8‐1 Inohana, Chuo‐kuChiba260‐8675Japan
| | - Hiroaki Hayashi
- School of PharmacyIwate Medical University2‐1‐1 NishitokutaYahaba, Iwate028‐3694Japan
| | - Kazuki Saito
- RIKEN Center for Sustainable Resource Science1‐7‐22 Suehiro‐cho, Tsurumi‐kuYokohamaKanagawa230‐0045Japan
- Graduate School of Pharmaceutical SciencesChiba University1‐8‐1 Inohana, Chuo‐kuChiba260‐8675Japan
| | - Toshiya Muranaka
- Department of BiotechnologyGraduate School of EngineeringOsaka University2‐1 YamadaokaSuitaOsaka565‐0871Japan
- RIKEN Center for Sustainable Resource Science1‐7‐22 Suehiro‐cho, Tsurumi‐kuYokohamaKanagawa230‐0045Japan
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Wang S, Alseekh S, Fernie AR, Luo J. The Structure and Function of Major Plant Metabolite Modifications. MOLECULAR PLANT 2019; 12:899-919. [PMID: 31200079 DOI: 10.1016/j.molp.2019.06.001] [Citation(s) in RCA: 189] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/27/2019] [Accepted: 06/04/2019] [Indexed: 05/23/2023]
Abstract
Plants produce a myriad of structurally and functionally diverse metabolites that play many different roles in plant growth and development and in plant response to continually changing environmental conditions as well as abiotic and biotic stresses. This metabolic diversity is, to a large extent, due to chemical modification of the basic skeletons of metabolites. Here, we review the major known plant metabolite modifications and summarize the progress that has been achieved and the challenges we are facing in the field. We focus on discussing both technical and functional aspects in studying the influences that various modifications have on biosynthesis, degradation, transport, and storage of metabolites, as well as their bioactivity and toxicity. Finally, we discuss some emerging insights into the evolution of metabolic pathways and metabolite functionality.
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Affiliation(s)
- Shouchuang Wang
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Tropical Crops, Hainan University, Haikou 572208, China
| | - Saleh Alseekh
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm 14476, Germany; Centre of Plant Systems Biology and Biotechnology, Plovdiv 4000, Bulgaria
| | - Alisdair R Fernie
- Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm 14476, Germany; Centre of Plant Systems Biology and Biotechnology, Plovdiv 4000, Bulgaria.
| | - Jie Luo
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresource, College of Tropical Crops, Hainan University, Haikou 572208, China; National Key Laboratory of Crop Genetic Improvement and National Center of Plant Gene Research (Wuhan), Huazhong Agricultural University, Wuhan 430070, China.
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Tzin V, Snyder JH, Yang DS, Huhman DV, Watson BS, Allen SN, Tang Y, Miettinen K, Arendt P, Pollier J, Goossens A, Sumner LW. Integrated metabolomics identifies CYP72A67 and CYP72A68 oxidases in the biosynthesis of Medicago truncatula oleanate sapogenins. Metabolomics 2019; 15:85. [PMID: 31144047 DOI: 10.1007/s11306-019-1542-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 05/09/2019] [Indexed: 10/26/2022]
Abstract
INTRODUCTION Triterpene saponins are important bioactive plant natural products found in many plant families including the Leguminosae. OBJECTIVES We characterize two Medicago truncatula cytochrome P450 enzymes, MtCYP72A67 and MtCYP72A68, involved in saponin biosynthesis including both in vitro and in planta evidence. METHODS UHPLC-(-)ESI-QToF-MS was used to profile saponin accumulation across a collection of 106 M. truncatula ecotypes. The profiling results identified numerous ecotypes with high and low saponin accumulation in root and aerial tissues. Four ecotypes with significant differential saponin content in the root and/or aerial tissues were selected, and correlated gene expression profiling was performed. RESULTS Correlation analyses between gene expression and saponin accumulation revealed high correlations between saponin content with gene expression of β-amyrin synthase, MtCYP716A12, and two cytochromes P450 genes, MtCYP72A67 and MtCYP72A68. In vivo and in vitro biochemical assays using yeast microsomes containing MtCYP72A67 revealed hydroxylase activity for carbon 2 of oleanolic acid and hederagenin. This finding was supported by functional characterization of MtCYP72A67 using RNAi-mediated gene silencing in M. truncatula hairy roots, which revealed a significant reduction of 2β-hydroxylated sapogenins. In vivo and in vitro assays with MtCYP72A68 produced in yeast showed multifunctional oxidase activity for carbon 23 of oleanolic acid and hederagenin. These findings were supported by overexpression of MtCYP72A68 in M. truncatula hairy roots, which revealed significant increases of oleanolic acid, 2β-hydroxyoleanolic acid, hederagenin and total saponin levels. CONCLUSIONS The cumulative data support that MtCYP72A68 is a multisubstrate, multifunctional oxidase and MtCYP72A67 is a 2β-hydroxylase, both of which function during the early steps of triterpene-oleanate sapogenin biosynthesis.
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Affiliation(s)
- Vered Tzin
- Plant Biology Division, Noble Research Institute, Ardmore, OKLA, 73401, USA.
- French Associates Institute for Agriculture and Biotechnology of Drylands, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer Campus, Israel.
| | - John H Snyder
- Plant Biology Division, Noble Research Institute, Ardmore, OKLA, 73401, USA
- Department of Plant Biology, Cornell University, Ithaca, NY, 14850, USA
- National Institute of Biological Sciences, Beijing, China
| | - Dong Sik Yang
- Plant Biology Division, Noble Research Institute, Ardmore, OKLA, 73401, USA
- Biomaterials Laboratory, Material Research Center, Samsung Advanced Institute of Technology, Suwon, South Korea
| | - David V Huhman
- Plant Biology Division, Noble Research Institute, Ardmore, OKLA, 73401, USA
| | - Bonnie S Watson
- Plant Biology Division, Noble Research Institute, Ardmore, OKLA, 73401, USA
| | - Stacy N Allen
- Plant Biology Division, Noble Research Institute, Ardmore, OKLA, 73401, USA
| | - Yuhong Tang
- Plant Biology Division, Noble Research Institute, Ardmore, OKLA, 73401, USA
| | - Karel Miettinen
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052, Ghent, Belgium
| | - Philipp Arendt
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052, Ghent, Belgium
| | - Jacob Pollier
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052, Ghent, Belgium
| | - Alain Goossens
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052, Ghent, Belgium
| | - Lloyd W Sumner
- Plant Biology Division, Noble Research Institute, Ardmore, OKLA, 73401, USA.
- Department of Biochemistry, Interdisciplinary Plant Group, Bond Life Sciences Center, University of Missouri, Columbia, MO, 65211, USA.
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Rahimi S, Kim J, Mijakovic I, Jung KH, Choi G, Kim SC, Kim YJ. Triterpenoid-biosynthetic UDP-glycosyltransferases from plants. Biotechnol Adv 2019; 37:107394. [PMID: 31078628 DOI: 10.1016/j.biotechadv.2019.04.016] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 02/20/2019] [Accepted: 04/30/2019] [Indexed: 01/22/2023]
Abstract
Triterpenoid saponins are naturally occurring structurally diverse glycosides of triterpenes that are widely distributed among plant species. Great interest has been expressed by pharmaceutical and agriculture industries for the glycosylation of triterpenes. Such modifications alter their taste and bio-absorbability, affect their intra-/extracellular transport and storage in plants, and induce novel biological activities in the human body. Uridine diphosphate (UDP)-glycosyltransferases (UGTs) catalyze glycosylation using UDP sugar donors. These enzymes belong to a multigene family and recognize diverse natural products, including triterpenes, as the acceptor molecules. For this review, we collected and analyzed all of the UGT sequences found in Arabidopsis thaliana as well as 31 other species of triterpene-producing plants. To identify potential UGTs with novel functions in triterpene glycosylation, we screened and classified those candidates based on similarity with UGTs from Panax ginseng, Glycine max, Medicago truncatula, Saponaria vaccaria, and Barbarea vulgaris that are known to function in glycosylate triterpenes. We highlight recent findings on UGT inducibility by methyl jasmonate, tissue-specific expression, and subcellular localization, while also describing their catalytic activity in terms of regioselectivity for potential key UGTs dedicated to triterpene glycosylation in plants. Discovering these new UGTs expands our capacity to manipulate the biological and physicochemical properties of such valuable molecules.
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Affiliation(s)
- Shadi Rahimi
- Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea; Intelligent Synthetic Biology Center, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea; Systems and Synthetic Biology, Chalmers University of Technology, Göteborg, Sweden.
| | - Jaewook Kim
- Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea; Faculty of Agriculture, Kyushu University, Fukuoka 819-0395, Japan
| | - Ivan Mijakovic
- Systems and Synthetic Biology, Chalmers University of Technology, Göteborg, Sweden; The Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Lyngby, Denmark
| | - Ki-Hong Jung
- Graduate School of Biotechnology & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Giltsu Choi
- Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea
| | - Sun-Chang Kim
- Department of Biological Sciences, KAIST, Daejeon 34141, Republic of Korea; Intelligent Synthetic Biology Center, 291 Daehak-ro, Yuseong-gu, Daejeon 305-701, Republic of Korea
| | - Yu-Jin Kim
- Graduate School of Biotechnology & Crop Biotech Institute, Kyung Hee University, Yongin 17104, Republic of Korea.
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Pavarini DP, Selegato DM, Castro-Gamboa I, do Sacramento LVS, Furlan M. Ecological Insights to Track Cytotoxic Compounds among Maytenus ilicifolia Living Individuals and Clones of an Ex Situ Collection. Molecules 2019; 24:molecules24061160. [PMID: 30909567 PMCID: PMC6471723 DOI: 10.3390/molecules24061160] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 02/20/2019] [Accepted: 02/22/2019] [Indexed: 12/02/2022] Open
Abstract
Biodiversity is key for maintenance of life and source of richness. Nevertheless, concepts such as phenotype expression are also pivotal to understand how chemical diversity varies in a living organism. Sesquiterpene pyridine alkaloids (SPAs) and quinonemethide triterpenes (QMTs) accumulate in root bark of Celastraceae plants. However, despite their known bioactive traits, there is still a lack of evidence regarding their ecological functions. Our present contribution combines analytical tools to study clones and individuals of Maytenus ilicifolia (Celastraceae) kept alive in an ex situ collection and determine whether or not these two major biosynthetic pathways could be switched on simultaneously. The relative concentration of the QMTs maytenin (1) and pristimerin (2), and the SPA aquifoliunin E1 (3) were tracked in raw extracts by HPLC-DAD and 1H-NMR. Hierarchical Clustering Analysis (HCA) was used to group individuals according their ability to accumulate these metabolites. Semi-quantitative analysis showed an extensive occurrence of QMT in most individuals, whereas SPA was only detected in minor abundance in five samples. Contrary to QMTs, SPAs did not accumulate extensively, contradicting the hypothesis of two different biosynthetic pathways operating simultaneously. Moreover, the production of QMT varied significantly among samples of the same ex situ collection, suggesting that the terpene contents in root bark extracts were not dependent on abiotic effects. HCA results showed that QMT occurrence was high regardless of the plant age. This data disproves the hypothesis that QMT biosynthesis was age-dependent. Furthermore, clustering analysis did not group clones nor same-age samples together, which might reinforce the hypothesis over gene regulation of the biosynthesis pathways. Indeed, plants from the ex situ collection produced bioactive compounds in a singular manner, which postulates that rhizosphere environment could offer ecological triggers for phenotypical plasticity.
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Affiliation(s)
- Daniel Petinatti Pavarini
- Instituto de Química, University Estadual Paulista-UNESP, Rua Prof. Francisco Degni, 55, Quitandinha, Araraquara, SP 14800-060, Brazil.
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Cloreen Park, Malone Road, Belfast BT9 5HN, UK.
| | - Denise Medeiros Selegato
- Instituto de Química, University Estadual Paulista-UNESP, Rua Prof. Francisco Degni, 55, Quitandinha, Araraquara, SP 14800-060, Brazil.
| | - Ian Castro-Gamboa
- Instituto de Química, University Estadual Paulista-UNESP, Rua Prof. Francisco Degni, 55, Quitandinha, Araraquara, SP 14800-060, Brazil.
| | - Luiz Vitor Silva do Sacramento
- Faculdade de Ciências Farmacêuticas, University, Estadual Paulista-UNESP, Rod. Araraquara-Jaú km 1, Araraquara, SP 14801-903, Brazil.
| | - Maysa Furlan
- Instituto de Química, University Estadual Paulista-UNESP, Rua Prof. Francisco Degni, 55, Quitandinha, Araraquara, SP 14800-060, Brazil.
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Comparative analysis of proteomic and metabolomic profiles of different species of Paris. J Proteomics 2019; 200:11-27. [PMID: 30890455 DOI: 10.1016/j.jprot.2019.02.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 01/12/2019] [Accepted: 02/01/2019] [Indexed: 02/08/2023]
Abstract
An extract prepared from species of Paris is the most widely consumed herbal product in China. The genus Paris includes a variety of genotypes with different medicinal component contents but only two are defined as official sources. Closely related species have different medicinal properties because of differential expression of proteins and metabolites. To better understand the molecular basis of these differences, we examined proteomic and metabolomic changes in rhizomes of P. polyphylla var. chinensis, P. polyphylla var. yunnanensis, and P. fargesii var. fargesii using a technique known as sequential window acquisition of all theoretical mass spectra as well as gas chromatography-time-of-flight mass spectrometry. In total, 419 proteins showed significant abundance changes, and 33 metabolites could be used to discriminate Paris species. A complex analysis of proteomic and metabolomic data revealed a higher efficiency of sucrose utilization and an elevated protein abundance in the sugar metabolic pathway of P. polyphylla var. chinensis. The pyruvate content and efficiency of acetyl-CoA-utilization in saponin biosynthesis were also higher in P. polyphylla var. chinensis than in the other two species. The results expand our understanding of the proteome and metabolome of Paris and offer new insights into the species-specific traits of these herbaceous plants. SIGNIFICANCE: The traditional Chinese medicine Paris is the most widely consumed herbal product for the treatment of joint pain, rheumatoid arthritis and antineoplastic. All Paris species have roughly the same morphological characteristics; however, different members have different medicinal compound contents. Efficient exploitation of genetic diversity is a key factor in the development of rare medicinal plants with improved agronomic traits and malleability to challenging environmental conditions. Nevertheless, only a partial understanding of physiological and molecular mechanisms of different plants of Paris can be achieved without proteomics. To better understand the molecular basis of these differences and facilitate the use of other Paris species, we examine proteomic metabolomic changes in rhizomes of Paris using the technique known as SWATH-MS and GC/TOF-MS. Our research has provided information that can be used in other studies to compare metabolic traits in different Paris species. Our findings can also serve as a theoretical basis for the selection and cultivation of other Paris species with a higher medicinal value.
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