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Wang T, Sun Y, Chen Y, Ma D, Zhan R, Yang J, Yang P. Functional characterization of geranyl/farnesyl diphosphate synthase in Wurfbainia villosa and Wurfbainia longiligularis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 212:108741. [PMID: 38772167 DOI: 10.1016/j.plaphy.2024.108741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 04/26/2024] [Accepted: 05/16/2024] [Indexed: 05/23/2024]
Abstract
Wurfbainia villosa and Wurfbainia longiligularis are the two primary plant sources of Fructus Amomi, a traditional Chinese medicine. Both plants are rich in volatile terpenoids, including monoterpenes and sesquiterpenes, which are the primary medicinal components of Fructus Amomi. The trans-isopentenyl diphosphate synthase (TIDS) gene family plays a key part in determining terpenoid diversity and accumulation. However, the TIDS gene family have not been identified in W. villosa and W. longiligularis. This study identified thirteen TIDS genes in W. villosa and eleven TIDS genes in W. longiligularis, which may have expanded through segmental replication events. Based on phylogenetic analysis and expression levels, eight candidate WvTIDSs and five WlTIDSs were selected for cloning. Functional characterization in vitro demonstrated that four homologous geranyl diphosphate synthases (GPPSs) (WvGPPS1, WvGPPS2, WlGPPS1, WlGPPS2) and two geranylgeranyl diphosphate synthases (GGPPSs) (WvGGPPS and WlGGPPS) were responsible for catalyzing the biosynthesis of geranyl diphosphate (GPP), whereas two farnesyl diphosphate synthases (FPPSs) (WvFPPS and WlFPPS) catalysed the biosynthesis of the farnesyl diphosphate (FPP). A comparison of six proteins with identified GPPS functions showed that WvGGPPS and WlGGPPS exhibited the highest activity levels. These findings indicate that homologous GPPS and GGPPS together promote the biosynthesis of GPP in W. villosa and W. longiligularis, thus providing sufficient precursors for the synthesis of monoterpenes and providing key genetic elements for Fructus Amomi variety improvement and molecular breeding.
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Affiliation(s)
- Tiantian Wang
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Ministry of Education), School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Yewen Sun
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Ministry of Education), School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Yuanxia Chen
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Ministry of Education), School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Dongming Ma
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Ministry of Education), School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Ruoting Zhan
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Ministry of Education), School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.
| | - Jinfen Yang
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Ministry of Education), School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.
| | - Peng Yang
- Key Laboratory of Chinese Medicinal Resource from Lingnan (Ministry of Education), School of Pharmaceutical Science, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China; Hunan Provincial Key Laboratory for Synthetic Biology of Traditional Chinese Medicine, School of Pharmaceutical Sciences, Hunan University of Medicine, Huaihua, 418000, China.
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Kumar A, Patekar S, Mohapatra S, Patel DK, Kiran NR, Jaiswal P, Nagegowda DA, Shasany AK. Isoprenyl diphosphate synthases of terpenoid biosynthesis in rose-scented geranium (Pelargonium graveolens). PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2024; 210:108590. [PMID: 38574692 DOI: 10.1016/j.plaphy.2024.108590] [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: 09/19/2023] [Revised: 01/25/2024] [Accepted: 03/29/2024] [Indexed: 04/06/2024]
Abstract
The essential oil of Pelargonium graveolens (rose-scented geranium), an important aromatic plant, comprising mainly mono- and sesqui-terpenes, has applications in food and cosmetic industries. This study reports the characterization of isoprenyl disphosphate synthases (IDSs) involved in P. graveolens terpene biosynthesis. The six identified PgIDSs belonged to different classes of IDSs, comprising homomeric geranyl diphosphate synthases (GPPSs; PgGPPS1 and PgGPPS2), the large subunit of heteromeric GPPS or geranylgeranyl diphosphate synthases (GGPPSs; PgGGPPS), the small subunit of heteromeric GPPS (PgGPPS.SSUI and PgGPPS.SSUII), and farnesyl diphosphate synthases (FPPS; PgFPPS).All IDSs exhibited maximal expression in glandular trichomes (GTs), the site of aroma formation, and their expression except PgGPPS.SSUII was induced upon treatment with MeJA. Functional characterization of recombinant proteins revealed that PgGPPS1, PgGGPPS and PgFPPS were active enzymes producing GPP, GGPP/GPP, and FPP respectively, whereas both PgGPPS.SSUs and PgGPPS2 were inactive. Co-expression of PgGGPPS (that exhibited bifunctional G(G)PPS activity) with PgGPPS.SSUs in bacterial expression system showed lack of interaction between the two proteins, however, PgGGPPS interacted with a phylogenetically distant Antirrhinum majus GPPS.SSU. Further, transient expression of AmGPPS.SSU in P. graveolens leaf led to a significant increase in monoterpene levels. These findings provide insight into the types of IDSs and their role in providing precursors for different terpenoid components of P. graveolens essential oil.
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Affiliation(s)
- Ajay Kumar
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India
| | - Soumitra Patekar
- Molecular Plant Biology and Biotechnology Lab, CSIR-CIMAP Research Centre, Bengaluru, 560065, India
| | - Soumyajit Mohapatra
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India
| | - Devendra Kumar Patel
- Regulatory Toxicology, CSIR-Indian Institute of Toxicology Research, Lucknow, 226015, India
| | - N R Kiran
- Molecular Plant Biology and Biotechnology Lab, CSIR-CIMAP Research Centre, Bengaluru, 560065, India
| | - Priyanka Jaiswal
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India
| | - Dinesh A Nagegowda
- Molecular Plant Biology and Biotechnology Lab, CSIR-CIMAP Research Centre, Bengaluru, 560065, India.
| | - Ajit Kumar Shasany
- Biotechnology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, 226015, India; CSIR-National Botanical Research Institute (CSIR-NBRI), Lucknow, 226001, India.
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Lin Q, Huang Y, Li G, Luo Z, Wang L, Li D, Xiang Y, Liu L, Ban Z, Li L. The journey of prochloraz pesticide in Citrus sinensis: Residual distribution, impact on transcriptomic profiling and reduction by plasma-activated water. JOURNAL OF HAZARDOUS MATERIALS 2023; 448:130931. [PMID: 36860068 DOI: 10.1016/j.jhazmat.2023.130931] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/21/2023] [Accepted: 01/31/2023] [Indexed: 06/18/2023]
Abstract
Prochloraz (PTIC) is a hazardous fungicide used worldwide on agricultural produce despite concerns about potential impacts on human health and environmental pollution. The residue of PTIC and its metabolite 2,4,6-trichlorophenol (2,4,6-TCP) in fresh produce has largely not been clarified. Herein, we address this research gap by examining residues of PTIC and 2,4,6-TCP in fruit of Citrus sinensis through a typical storage period. PTIC residue in the exocarp and mesocarp peaked on days 7 and 14, respectively, while 2,4,6-TCP residue gradually increased throughout storage period. Based upon gas chromatography-mass spectrometry and RNA-sequencing analysis, we reported the potential impact of residual PTIC on endogenous terpene production, and identified 11 DEGs encoding enzymes involved in terpene biosynthesis in Citrus sinensis. Additionally, we investigated both the reduction efficacy (max: 58.93%) of plasma-activated water in citrus exocarp and the minimal impact on quality attributes of citrus mesocarp. The present study not only sheds light on the residual distribution of PTIC and its impact on endogenous metabolism in Citrus sinensis, but also further provides theoretical basis for potential approaches for efficiently reducing or eliminating pesticide residues.
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Affiliation(s)
- Qianwei Lin
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou, China
| | - Yuanwei Huang
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou, China
| | - Gangfeng Li
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou, China
| | - Zisheng Luo
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou, China; National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Laboratory of Food Technology and Equipment, Zhejiang University, Hangzhou, China; Ningbo Research Institute, Zhejiang University, Ningbo, China
| | - Lei Wang
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou, China
| | - Dong Li
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou, China
| | - Yizhou Xiang
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou, China
| | - Lingling Liu
- Zhejiang Provincial Key Laboratory of Chemical and Biological Processing Technology of Farm Products, School of Biological and chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, China
| | - Zhaojun Ban
- Zhejiang Provincial Key Laboratory of Chemical and Biological Processing Technology of Farm Products, School of Biological and chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, China.
| | - Li Li
- College of Biosystems Engineering and Food Science, Fuli Institute of Food Science, Key Laboratory of Agro-Products Postharvest Handling, Ministry of Agriculture and Rural Affairs, Zhejiang University, Hangzhou, China; National-Local Joint Engineering Laboratory of Intelligent Food Technology and Equipment, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang Engineering Laboratory of Food Technology and Equipment, Zhejiang University, Hangzhou, China; Ningbo Research Institute, Zhejiang University, Ningbo, China.
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Wang L, Zou P, Liu F, Liu R, Yan ZY, Chen X. Integrated analysis of lncRNAs, mRNAs, and TFs to identify network modules underlying diterpenoid biosynthesis in Salvia miltiorrhiza. PeerJ 2023; 11:e15332. [PMID: 37187524 PMCID: PMC10178227 DOI: 10.7717/peerj.15332] [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: 10/27/2022] [Accepted: 04/11/2023] [Indexed: 05/17/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) are transcripts of more than 200 nucleotides (nt) in length, with minimal or no protein-coding capacity. Increasing evidence indicates that lncRNAs play important roles in the regulation of gene expression including in the biosynthesis of secondary metabolites. Salvia miltiorrhiza Bunge is an important medicinal plant in China. Diterpenoid tanshinones are one of the main active components of S. miltiorrhiza. To better understand the role of lncRNAs in regulating diterpenoid biosynthesis in S. miltiorrhiza, we integrated analysis of lncRNAs, mRNAs, and transcription factors (TFs) to identify network modules underlying diterpenoid biosynthesis based on transcriptomic data. In transcriptomic data, we obtained 6,651 candidate lncRNAs, 46 diterpenoid biosynthetic pathway genes, and 11 TFs involved in diterpenoid biosynthesis. Combining the co-expression and genomic location analysis, we obtained 23 candidate lncRNA-mRNA/TF pairs that were both co-expressed and co-located. To further observe the expression patterns of these 23 candidate gene pairs, we analyzed the time-series expression of S. miltiorrhiza induced by methyl jasmonate (MeJA). The results showed that 19 genes were differentially expressed at least a time-point, and four lncRNAs, two mRNAs, and two TFs formed three lncRNA-mRNA and/or TF network modules. This study revealed the relationship among lncRNAs, mRNAs, and TFs and provided new insight into the regulation of the biosynthetic pathway of S. miltiorrhiza diterpenoids.
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Cao Y, Jia S, Chen L, Zeng S, Zhao T, Karikari B. Identification of major genomic regions for soybean seed weight by genome-wide association study. MOLECULAR BREEDING : NEW STRATEGIES IN PLANT IMPROVEMENT 2022; 42:38. [PMID: 37313505 PMCID: PMC10248628 DOI: 10.1007/s11032-022-01310-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 06/12/2022] [Indexed: 06/15/2023]
Abstract
The hundred-seed weight (HSW) is an important yield component and one of the principal breeding traits in soybean. More than 250 quantitative trait loci (QTL) for soybean HSW have been identified. However, most of them have a large genomic region or are environmentally sensitive, which provide limited information for improving the phenotype in marker-assisted selection (MAS) and identifying the candidate genes. Here, we utilized 281 soybean accessions with 58,112 single nucleotide polymorphisms (SNPs) to dissect the genetic basis of HSW in across years in the northern Shaanxi province of China through one single-locus (SL) and three multi-locus (ML) genome-wide association study (GWAS) models. As a result, one hundred and fifty-four SNPs were detected to be significantly associated with HSW in at least one environment via SL-GWAS model, and 27 of these 154 SNPs were detected in all (three) environments and located within 7 linkage disequilibrium (LD) block regions with the distance of each block ranged from 40 to 610 Kb. A total of 15 quantitative trait nucleotides (QTNs) were identified by three ML-GWAS models. Combined with the results of different GWAS models, the 7 LD block regions associated with HSW detected by SL-GWAS model could be verified directly or indirectly by the results of ML-GWAS models. Eleven candidate genes underlying the stable loci that may regulate seed weight in soybean were predicted. The significantly associated SNPs and the stable loci as well as predicted candidate genes may be of great importance for marker-assisted breeding, polymerization breeding, and gene discovery for HSW in soybean. Supplementary Information The online version contains supplementary material available at 10.1007/s11032-022-01310-y.
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Affiliation(s)
- Yongce Cao
- Shaanxi Key Laboratory of Chinese Jujube, College of Life Science, Yan’an University, Yan’an, Shaanxi, 716000 China
| | - Shihao Jia
- Shaanxi Key Laboratory of Chinese Jujube, College of Life Science, Yan’an University, Yan’an, Shaanxi, 716000 China
| | - Liuxing Chen
- Shaanxi Key Laboratory of Chinese Jujube, College of Life Science, Yan’an University, Yan’an, Shaanxi, 716000 China
| | - Shunan Zeng
- Shaanxi Key Laboratory of Chinese Jujube, College of Life Science, Yan’an University, Yan’an, Shaanxi, 716000 China
| | - Tuanjie Zhao
- Key Laboratory of Biology and Genetic Improvement of Soybean, Ministry of Agriculture, National Center for Soybean Improvement, National Key Laboratory for Crop Genetics and Germplasm Enhancement, Soybean Research Institute of Nanjing Agricultural University, Nanjing, 210095 Jiangsu China
| | - Benjamin Karikari
- Department of Crop Science, Faculty of Agriculture, Food and Consumer Sciences, University for Development Studies, 00233 Tamale, Ghana
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Zhang W, Jiang Y, Chen F, Guan Z, Wei G, Chen X, Zhang C, Köllner TG, Chen S, Chen F, Chen F. Dynamic regulation of volatile terpenoid production and emission from Chrysanthemum morifolium capitula. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 182:11-21. [PMID: 35453029 DOI: 10.1016/j.plaphy.2022.03.039] [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: 11/07/2021] [Revised: 03/09/2022] [Accepted: 03/31/2022] [Indexed: 06/14/2023]
Abstract
Flower-associated communities consist of both mutualistic and antagonistic organisms. We have limited knowledge on how flowers regulate volatiles to balance their defense against antagonists and the attraction of beneficial organisms necessary for reproductive success. Asteraceae is the largest family among flowering plants. Its representatives are characterized by unique inflorescence called capitulum, which has been reduced to a reproduction unit resembling a single flower. Here, we chose Chrysanthemum morifolium, a model species of Asteraceae, to investigate how the capitulum balances the accumulation and emission of floral terpenoid volatiles that are implicated in defense and pollinator attraction, respectively. Our results showed that the capitula of C. morifolium produce and emit complex mixtures of monoterpenoids and sesquiterpenoids. The highest concentrations of terpenoids were detected in the bud stage of the capitula. In contrast, the capitulum reached the highest emission level prior to full blooming. The disc florets were the dominant organs of terpenoid accumulation and emission in the full-openness stage. To understand the molecular basis of volatile terpenoid biosynthesis in C. morifolium, experiments were designed to study terpene synthase (TPS) genes, which are pivotal for terpene biosynthesis. Eight CmCJTPS genes were identified in the transcriptomes of C. morifolium, and the proteins encoded by five genes were found to be biochemically functional. CmCJTPS5 and CmCJTPS8 were the multi-product enzymes catalyzing the monoterpenoid and sesquiterpenoid formation, which closely matched the major terpenoids produced in the flower heads. The five functional terpene synthase genes exhibited similar temporal expression patterns but diverse spatial expression levels, suggesting tissue-specific functions. Altogether, our results illustrate the dynamic patterns of accumulation and emission of floral volatile terpenoids implicated in defense and attracting pollinators in C. morifolium, for which both the regulation of TPS gene expression and the regulation of release may play critical roles.
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Affiliation(s)
- Wanbo Zhang
- Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Yifan Jiang
- Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China.
| | - Fei Chen
- Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Zhiyong Guan
- Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Guo Wei
- Department of Plant Sciences, University of Tennessee, Knoxville, TN, 37996, USA
| | - Xinlu Chen
- Department of Plant Sciences, University of Tennessee, Knoxville, TN, 37996, USA
| | - Chi Zhang
- Department of Plant Sciences, University of Tennessee, Knoxville, TN, 37996, USA
| | - Tobias G Köllner
- Department of Biochemistry, Max Planck Institute for Chemical Ecology, Hans-Knöll Str. 8, 07745, Jena, Germany
| | - Sumei Chen
- Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Fadi Chen
- Key Laboratory of Landscaping, Ministry of Agriculture and Rural Affairs, Key Laboratory of Biology of Ornamental Plants in East China, National Forestry and Grassland Administration, College of Horticulture, Nanjing Agricultural University, Nanjing, 210095, China
| | - Feng Chen
- Department of Plant Sciences, University of Tennessee, Knoxville, TN, 37996, USA.
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Davidovich-Rikanati R, Bar E, Hivert G, Huang XQ, Hoppen-Tonial C, Khankin V, Rand K, Abofreih A, Muhlemann JK, Marchese JA, Shotland Y, Dudareva N, Inbar M, Lewinsohn E. Transcriptional up-regulation of host-specific terpene metabolism in aphid-induced galls of Pistacia palaestina. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:555-570. [PMID: 34129033 DOI: 10.1093/jxb/erab289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 06/11/2021] [Indexed: 06/12/2023]
Abstract
Galling insects gain food and shelter by inducing specialized anatomical structures in their plant hosts. Such galls often accumulate plant defensive metabolites protecting the inhabiting insects from predation. We previously found that, despite a marked natural chemopolymorphism in natural populations of Pistacia palaestina, the monoterpene content in Baizongia pistaciae-induced galls is substantially higher than in leaves of their hosts. Here we show a general up-regulation of key structural genes in both the plastidial and cytosolic terpene biosynthetic pathways in galls as compared with non-colonized leaves. Novel prenyltransferases and terpene synthases were functionally expressed in Escherichia coli to reveal their biochemical function. Individual Pistacia trees exhibiting chemopolymorphism in terpene compositions displayed differential up-regulation of selected terpene synthase genes, and the metabolites generated by their gene products in vitro corresponded to the monoterpenes accumulated by each tree. Our results delineate molecular mechanisms responsible for the formation of enhanced monoterpene in galls and the observed intraspecific monoterpene chemodiversity displayed in P. palaestina. We demonstrate that gall-inhabiting aphids transcriptionally reprogram their host terpene pathways by up-regulating tree-specific genes, boosting the accumulation of plant defensive compounds for the protection of colonizing insects.
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Affiliation(s)
- Rachel Davidovich-Rikanati
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, Ramat Yishay, 30095, Israel
| | - Einat Bar
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, Ramat Yishay, 30095, Israel
| | - Gal Hivert
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, Ramat Yishay, 30095, Israel
- Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Xing-Qi Huang
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907-1165, USA
- Purdue Center for Plant Biology, Purdue University, West Lafayette, IN 47907, USA
| | - Carolina Hoppen-Tonial
- Department of Agronomy, Federal University of Technology - Paraná, Pato Branco, 85503-390, Brazil
- Department of Agronomy, Federal Institute of Paraná, Palmas, 85555-000, Brazil
| | - Vered Khankin
- Department of Chemical Engineering, Shamoon College of Engineering, Beer Sheva, 84100, Israel
| | - Karin Rand
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, Ramat Yishay, 30095, Israel
- Department of Evolutionary & Environmental Biology, University of Haifa, Mount Carmel, Haifa, 3498838, Israel
| | - Amal Abofreih
- Department of Chemical Engineering, Shamoon College of Engineering, Beer Sheva, 84100, Israel
| | - Joelle K Muhlemann
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907-1165, USA
- The James Hutton Institute, UK
| | - José Abramo Marchese
- Department of Agronomy, Federal University of Technology - Paraná, Pato Branco, 85503-390, Brazil
| | - Yoram Shotland
- Department of Chemical Engineering, Shamoon College of Engineering, Beer Sheva, 84100, Israel
| | - Natalia Dudareva
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907-1165, USA
- Purdue Center for Plant Biology, Purdue University, West Lafayette, IN 47907, USA
| | - Moshe Inbar
- Department of Evolutionary & Environmental Biology, University of Haifa, Mount Carmel, Haifa, 3498838, Israel
| | - Efraim Lewinsohn
- Institute of Plant Sciences, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, Ramat Yishay, 30095, Israel
- Faculty of Agriculture, The Hebrew University of Jerusalem, Rehovot, Israel
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Pu X, Dong X, Li Q, Chen Z, Liu L. An update on the function and regulation of methylerythritol phosphate and mevalonate pathways and their evolutionary dynamics. JOURNAL OF INTEGRATIVE PLANT BIOLOGY 2021; 63:1211-1226. [PMID: 33538411 DOI: 10.1111/jipb.13076] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 02/02/2021] [Indexed: 05/29/2023]
Abstract
Isoprenoids are among the largest and most chemically diverse classes of organic compounds in nature and are involved in the processes of photosynthesis, respiration, growth, development, and plant responses to stress. The basic building block units for isoprenoid synthesis-isopentenyl diphosphate and its isomer dimethylallyl diphosphate-are generated by the mevalonate (MVA) and methylerythritol phosphate (MEP) pathways. Here, we summarize recent advances on the roles of the MEP and MVA pathways in plant growth, development and stress responses, and attempt to define the underlying gene networks that orchestrate the MEP and MVA pathways in response to developmental or environmental cues. Through phylogenomic analysis, we also provide a new perspective on the evolution of the plant isoprenoid pathway. We conclude that the presence of the MVA pathway in plants may be associated with the transition from aquatic to subaerial and terrestrial environments, as lineages for its core components are absent in green algae. The emergence of the MVA pathway has acted as a key evolutionary event in plants that facilitated land colonization and subsequent embryo development, as well as adaptation to new and varied environments.
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Affiliation(s)
- Xiaojun Pu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, 434200, China
- Key Laboratory for Economic Plants and Biotechnology, Kunming Institute of Botany, the Chinese Academy of Sciences, and Yunnan Key Laboratory for Wild Plant Resources, Kunming, 650201, China
| | - Xiumei Dong
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, 434200, China
- Key Laboratory for Economic Plants and Biotechnology, Kunming Institute of Botany, the Chinese Academy of Sciences, and Yunnan Key Laboratory for Wild Plant Resources, Kunming, 650201, China
| | - Qing Li
- Key Laboratory for Economic Plants and Biotechnology, Kunming Institute of Botany, the Chinese Academy of Sciences, and Yunnan Key Laboratory for Wild Plant Resources, Kunming, 650201, China
- School of Life Sciences, Yunnan University, Kunming, 650091, China
| | - Zexi Chen
- Key Laboratory for Economic Plants and Biotechnology, Kunming Institute of Botany, the Chinese Academy of Sciences, and Yunnan Key Laboratory for Wild Plant Resources, Kunming, 650201, China
- University of the Chinese Academy of Sciences, Beijing, 100049, China
| | - Li Liu
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan, 434200, China
- Key Laboratory for Economic Plants and Biotechnology, Kunming Institute of Botany, the Chinese Academy of Sciences, and Yunnan Key Laboratory for Wild Plant Resources, Kunming, 650201, China
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Hedden P. The Current Status of Research on Gibberellin Biosynthesis. PLANT & CELL PHYSIOLOGY 2020; 61:1832-1849. [PMID: 32652020 PMCID: PMC7758035 DOI: 10.1093/pcp/pcaa092] [Citation(s) in RCA: 104] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 06/21/2020] [Indexed: 05/23/2023]
Abstract
Gibberellins are produced by all vascular plants and several fungal and bacterial species that associate with plants as pathogens or symbionts. In the 60 years since the first experiments on the biosynthesis of gibberellic acid in the fungus Fusarium fujikuroi, research on gibberellin biosynthesis has advanced to provide detailed information on the pathways, biosynthetic enzymes and their genes in all three kingdoms, in which the production of the hormones evolved independently. Gibberellins function as hormones in plants, affecting growth and differentiation in organs in which their concentration is very tightly regulated. Current research in plants is focused particularly on the regulation of gibberellin biosynthesis and inactivation by developmental and environmental cues, and there is now considerable information on the molecular mechanisms involved in these processes. There have also been recent advances in understanding gibberellin transport and distribution and their relevance to plant development. This review describes our current understanding of gibberellin metabolism and its regulation, highlighting the more recent advances in this field.
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Affiliation(s)
- Peter Hedden
- Laboratory of Growth Regulators, Palack� University & Institute of Experimental Botany of the Czech Academy of Sciences, Šlechtitelů 27, 78371 Olomouc, Czech Republic
- Rothamsted Research, West Common, Harpenden, Hertfordshire AL5 2JQ, UK
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Kim JS, Ezura K, Lee J, Kojima M, Takebayashi Y, Sakakibara H, Ariizumi T, Ezura H. The inhibition of SlIAA9 mimics an increase in endogenous auxin and mediates changes in auxin and gibberellin signalling during parthenocarpic fruit development in tomato. JOURNAL OF PLANT PHYSIOLOGY 2020; 252:153238. [PMID: 32707453 DOI: 10.1016/j.jplph.2020.153238] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/16/2020] [Accepted: 07/09/2020] [Indexed: 05/24/2023]
Abstract
Parthenocarpic fruit formation can be achieved through the inhibition of SlIAA9, a negative regulator of auxin signalling in tomato plant. During early fruit development under SlIAA9 inhibition, cell division and cell expansion were observed. Bioactive gibberellin (GA) accumulated, but indole-3-acetic acid (IAA) and trans-zeatin did not accumulate substantially. Furthermore, under SlIAA9 inhibition, auxin-responsive genes such as SlIAA2, -3, and -14 were upregulated, and SlARF7 was downregulated. These results indicate that SlIAA9 inhibition mimics an increase in auxin. The auxin biosynthesis genes SlTAR1, ToFZY, and ToFZY5 were stimulated by an increase in auxin and by auxin mimicking under SlIAA9 inhibition. However, SlTAR2 and ToFZY2 were upregulated only by pollination followed by high IAA accumulation. These results suggest that SlTAR2 and ToFZY2 play an important role in IAA synthesis in growing ovaries. GA synthesis was also activated by SlIAA9 inhibition through both the early-13-hydroxylation (for GA1 synthesis) and non-13-hydroxylation (GA4) pathways, indicating that fruit set caused by SlIAA9 inhibition was partially mediated by the GA pathway. SlIAA9 inhibition induced the expression of GA inactivation genes as well as GA biosynthesis genes except SlCPS during early parthenocarpic fruit development in tomato. This result suggests that inactivation genes play a role in fine-tuning the regulation of bioactive GA accumulation.
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Affiliation(s)
- Ji-Seong Kim
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tennodai 1-1-1 Tsukuba, Ibaraki 305-8572, Japan; Department of Environmental Horticulture, The University of Seoul, Seoulsiripdae‑ro 163, Dongdaemun‑gu, Seoul 130‑743, South Korea
| | - Kentaro Ezura
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tennodai 1-1-1 Tsukuba, Ibaraki 305-8572, Japan
| | - Jeongeun Lee
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tennodai 1-1-1 Tsukuba, Ibaraki 305-8572, Japan; Department of Environmental Horticulture, The University of Seoul, Seoulsiripdae‑ro 163, Dongdaemun‑gu, Seoul 130‑743, South Korea
| | - Mikkiko Kojima
- RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Yumiko Takebayashi
- RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro, Tsurumi, Yokohama 230-0045, Japan
| | - Hitoshi Sakakibara
- RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro, Tsurumi, Yokohama 230-0045, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Tohru Ariizumi
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tennodai 1-1-1 Tsukuba, Ibaraki 305-8572, Japan; Tsukuba Plant Innovation Research Center, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, 305-8572, Japan
| | - Hiroshi Ezura
- Faculty of Life and Environmental Sciences, University of Tsukuba, Tennodai 1-1-1 Tsukuba, Ibaraki 305-8572, Japan; Tsukuba Plant Innovation Research Center, University of Tsukuba, Tennodai 1-1-1, Tsukuba, Ibaraki, 305-8572, Japan.
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Barsain BL, Purohit A, Kumar A, Joshi R, Hallan V, Yadav SK. PkGPPS.SSU interacts with two PkGGPPS to form heteromeric GPPS in Picrorhiza kurrooa: Molecular insights into the picroside biosynthetic pathway. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 154:115-128. [PMID: 32554175 DOI: 10.1016/j.plaphy.2020.05.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/11/2020] [Accepted: 05/24/2020] [Indexed: 06/11/2023]
Abstract
Geranyl geranyl pyrophosphate synthase (GGPPS) is known to form an integral subunit of the heteromeric GPPS (geranyl pyrophosphate synthase) complex and catalyzes the biosynthesis of monoterpene in plants. Picrorhiza kurrooa Royle ex Benth., a medicinally important high altitude plant is known for picroside biomolecules, the monoterpenoids. However, the significance of heteromeric GPPS in P. kurrooa still remains obscure. Here, transient silencing of PkGGPPS was observed to reduce picroside-I (P-I) content by more than 60% as well as picroside-II (P-II) by more than 75%. Thus, PkGGPPS was found to be involved in the biosynthesis of P-I and P-II besides other terpenoids. To unravel the mechanism, small subunit of GPPS (PkGPPS.SSU) was identified from P. kurrooa. Protein-protein interaction studies in yeast as well as bimolecular fluorescence complementation (BiFC) in planta have indicated that large subunit of GPPS PkGPPS.LSUs (PkGGPPS1 and PkGGPPS2) and PkGPPS.SSU form a heteromeric GPPS. Presence of similar conserved domains such as light responsive motifs, low temperature responsive elements (LTRE), dehydration responsive elements (DREs), W Box and MeJA responsive elements in the promoters of PkGPPS.LSU and PkGPPS.SSU documented their involvement in picroside biosynthesis. Further, the tissue specific transcript expression analysis vis-à-vis epigenetic regulation (DNA methylation) of promoters as well as coding regions of PkGPPS.LSU and PkGPPS.SSU has strongly suggested their role in picroside biosynthesis. Taken together, the newly identified PkGPPS.SSU formed the heteromeric GPPS by interacting with PkGPPS.LSUs to synthesize P-I and P-II in P. kurrooa.
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Affiliation(s)
- Bharati Lalhal Barsain
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India; Academy of Scientific and Innovative Research, New Delhi, India
| | - Anjali Purohit
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India
| | - Ajay Kumar
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India; Academy of Scientific and Innovative Research, New Delhi, India
| | - Robin Joshi
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India
| | - Vipin Hallan
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India; Academy of Scientific and Innovative Research, New Delhi, India.
| | - Sudesh Kumar Yadav
- Biotechnology Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India; Academy of Scientific and Innovative Research, New Delhi, India.
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Hivert G, Davidovich-Rikanati R, Bar E, Sitrit Y, Schaffer A, Dudareva N, Lewinsohn E. Prenyltransferases catalyzing geranyldiphosphate formation in tomato fruit. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 296:110504. [PMID: 32540020 DOI: 10.1016/j.plantsci.2020.110504] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 04/11/2020] [Accepted: 04/16/2020] [Indexed: 06/11/2023]
Abstract
Monoterpenes contribute either favorably or adversely to the flavor of tomato, yet modern tomato varieties generally lack monoterpenes in their fruit. The main immediate biosynthetic precursor of monoterpenes is geranyldiphosphate (GPP), produced by the action of GPP synthases (GPPSs). Plant GPPSs are often heteromeric enzymes consisting of a non-catalytic small subunit (GPPS.SSU) and a large subunit (GPPS.LSU), the latter similar to geranylgeranyldiphosphate synthases (GGPPSs) which generate longer prenylphosphate chains. We show here that LeGGPPS2, an enzyme previously reported to support carotenoid biosynthesis, can synthesize farnesyldiphosphate (FPP) and GPP in vitro, in addition to geranylgeranyldiphosphate, depending on the assay conditions. Moreover, GPP formation is favored in vitro by the interaction of LeGGPPS2 with GPPS.SSU from either Anthirrhinum majus (AmGPPS.SSU) or from a newly discovered GPPS.SSU ortholog present in the genome of M82 tomato. SlGPPS.SSU is not expressed in M82 tomato fruit but its orthologs are expressed in fruit of wild tomato relatives, such as Solanum pimpinelifollium and S. cheesmaniae that accumulate monoterpenes.
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Affiliation(s)
- Gal Hivert
- Department of Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel; Department of Vegetable Crops, The Robert Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100001 Israel
| | - Rachel Davidovich-Rikanati
- Department of Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Einat Bar
- Department of Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel
| | - Yaron Sitrit
- French Associates Institute for Agriculture and Biotechnology of Drylands, The Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Beer Sheva, 84105, Israel
| | - Arthur Schaffer
- Institute of Plant Sciences, The Volcani Center, Agricultural Research Organization, P.O Box 6, Bet Dagan 50250, Israel
| | - Natalia Dudareva
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907-1165, USA
| | - Efraim Lewinsohn
- Department of Vegetable Crops, Newe Ya'ar Research Center, Agricultural Research Organization, The Volcani Center, P.O. Box 1021, Ramat Yishay, 30095, Israel; Department of Vegetable Crops, The Robert Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100001 Israel.
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Kamran HM, Hussain SB, Junzhong S, Xiang L, Chen LQ. Identification and Molecular Characterization of Geranyl Diphosphate Synthase (GPPS) Genes in Wintersweet Flower. PLANTS 2020; 9:plants9050666. [PMID: 32456337 PMCID: PMC7284688 DOI: 10.3390/plants9050666] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 05/18/2020] [Accepted: 05/20/2020] [Indexed: 01/18/2023]
Abstract
Geranyl diphosphate synthase (GPPS) is a plastid localized enzyme that catalyzes the biosynthesis of Geranyl diphosphate (GPP), which is a universal precursor of monoterpenes. Wintersweet (Chimonanthus praecox L.), a famous deciduous flowering shrub with a strong floral scent character, could have GPPS-like homologs that are involved in monoterpenes biosynthesis, but it remains unclear. In the present study, five full-length GPPS and geranylgeranyl diphosphate synthases (GGPPS) genes were identified in the wintersweet transcriptome database. The isolated cDNAs showed high protein sequence similarity with the other plants GPPS and GGPPS. The phylogenetic analysis further classified these cDNAs into four distinct clades, representing heterodimeric GPPS small subunits (SSU1 and SSU2), homodimeric GPPS, and GGPPS. Analysis of temporal expression revealed that all genes have the highest transcript level at the full-open flower stage. From tissue-specific expression analysis, CpGPPS.SSU1 and CpGGPPS1 were predominantly expressed in petal and flower, whereas CpGPPS.SSU2, GPPS, and GGPPS2 showed a constitutive expression. Additionally, the subcellular localization assay identified the chloroplast localization of SSUs and GGPPSs proteins, and the yeast two-hybrid assay showed that both CpGPPS.SSU1 and CpGPPS.SSU2 can interact with the GGPPS proteins. Taken together, these preliminary results suggest that the heterodimeric GPPS can regulate floral scent biosynthesis in wintersweet flower.
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Affiliation(s)
- Hafiz Muhammad Kamran
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China; (H.M.K.); (S.B.H.); (S.J.)
| | - Syed Bilal Hussain
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China; (H.M.K.); (S.B.H.); (S.J.)
| | - Shang Junzhong
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China; (H.M.K.); (S.B.H.); (S.J.)
| | - Lin Xiang
- Key Laboratory of Horticultural Plant Biology (Ministry of Education), College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan 430070, China; (H.M.K.); (S.B.H.); (S.J.)
- Correspondence: (L.X.); (L.-Q.C.); Tel.: +86-13554486169 (L.X.); +86-13099925286 (L.-Q.C.)
| | - Long-Qing Chen
- Southwest Engineering Research Center for Landscape Architecture (State Forestry and Grassland Administration), Southwest Forestry University, Kunming 650224, China
- Correspondence: (L.X.); (L.-Q.C.); Tel.: +86-13554486169 (L.X.); +86-13099925286 (L.-Q.C.)
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Hernández-García J, Briones-Moreno A, Blázquez MA. Origin and evolution of gibberellin signaling and metabolism in plants. Semin Cell Dev Biol 2020; 109:46-54. [PMID: 32414681 DOI: 10.1016/j.semcdb.2020.04.009] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/16/2020] [Accepted: 04/16/2020] [Indexed: 02/06/2023]
Abstract
Gibberellins modulate multiple aspects of plant behavior. The molecular mechanism by which these hormones are perceived and how this information is translated into transcriptional changes has been elucidated in vascular plants: gibberellins are perceived by the nuclear receptor GID1, which then interacts with the DELLA nuclear proteins and promote their degradation, resulting in the modification of the activity of transcription factors with which DELLAs interact physically. However, several important questions are still pending: how does a single molecule perform such a vast array of functions along plant development? What property do gibberellins add to plant behavior? A closer look at gibberellin action from an evolutionary perspective can help answer these questions. DELLA proteins are conserved in all land plants, and predate the emergence of a full gibberellin metabolic pathway and the GID1 receptor in the ancestor of vascular plants. The origin of gibberellin signaling is linked to the exaptation by GID1 of the N-terminal domain in DELLA, which already acted as a transcriptional coactivator domain in the ancestral DELLA proteins. At least the ability to control plant growth seems to be encoded already in the ancestral DELLA protein too, suggesting that gibberellins' functional diversity is the direct consequence of DELLA protein activity. Finally, comparative network analysis suggests that gibberellin signaling increases the coordination of transcriptional responses, providing a theoretical framework for the role of gibberellins in plant adaptation at the evolutionary scale, which further needs experimental testing.
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Affiliation(s)
- Jorge Hernández-García
- Instituto de Biología Molecular y Celular de Plantas (CSIC-Universidad Politécnica de Valencia), Spain
| | - Asier Briones-Moreno
- Instituto de Biología Molecular y Celular de Plantas (CSIC-Universidad Politécnica de Valencia), Spain
| | - Miguel A Blázquez
- Instituto de Biología Molecular y Celular de Plantas (CSIC-Universidad Politécnica de Valencia), Spain.
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Liu P, Luo J, Zheng Q, Chen Q, Zhai N, Xu S, Xu Y, Jin L, Xu G, Lu X, Xu G, Wang G, Shao J, Xu H, Cao P, Zhou H, Wang X. Integrating transcriptome and metabolome reveals molecular networks involved in genetic and environmental variation in tobacco. DNA Res 2020; 27:dsaa006. [PMID: 32324848 PMCID: PMC7320822 DOI: 10.1093/dnares/dsaa006] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/16/2020] [Indexed: 12/23/2022] Open
Abstract
Tobacco (Nicotiana tabacum) is one of the most widely cultivated commercial non-food crops with significant social and economic impacts. Here we profiled transcriptome and metabolome from 54 tobacco samples (2-3 replicates; n = 151 in total) collected from three varieties (i.e. genetic factor), three locations (i.e. environmental factor), and six developmental stages (i.e. developmental process). We identified 3,405 differentially expressed (DE) genes (DEGs) and 371 DE metabolites, respectively. We used quantitative real-time PCR to validate 20 DEGs, and confirmed 18/20 (90%) DEGs between three locations and 16/20 (80%) with the same trend across developmental stages. We then constructed nine co-expression gene modules and four co-expression metabolite modules , and defined seven de novo regulatory networks, including nicotine- and carotenoid-related regulatory networks. A novel two-way Pearson correlation approach was further proposed to integrate co-expression gene and metabolite modules to identify joint gene-metabolite relations. Finally, we further integrated DE and network results to prioritize genes by its functional importance and identified a top-ranked novel gene, LOC107773232, as a potential regulator involved in the carotenoid metabolism pathway. Thus, the results and systems-biology approaches provide a new avenue to understand the molecular mechanisms underlying complex genetic and environmental perturbations in tobacco.
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Affiliation(s)
- Pingping Liu
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Jie Luo
- Central Laboratory of Zhejiang Academy of Agricultural Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Qingxia Zheng
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Qiansi Chen
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Niu Zhai
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Shengchun Xu
- Central Laboratory of Zhejiang Academy of Agricultural Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Yalong Xu
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Lifeng Jin
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Guoyun Xu
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Xin Lu
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Guowang Xu
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Gangjun Wang
- Central Laboratory of Zhejiang Academy of Agricultural Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Jianfeng Shao
- Central Laboratory of Zhejiang Academy of Agricultural Sciences, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Hai‐Ming Xu
- Institute of Crop Science and Institute of Bioinformatics, College of Agriculture and Biotechnology, Zhejiang University, Hangzhou 310058, China
| | - Peijian Cao
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Huina Zhou
- China Tobacco Gene Research Center, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China
| | - Xusheng Wang
- Department of Biology, University of North Dakota, Grand Forks, ND, 58202, USA
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Adal AM, Mahmoud SS. Short-chain isoprenyl diphosphate synthases of lavender (Lavandula). PLANT MOLECULAR BIOLOGY 2020; 102:517-535. [PMID: 31927660 DOI: 10.1007/s11103-020-00962-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Accepted: 01/03/2020] [Indexed: 05/07/2023]
Abstract
KEY MESSAGE We reported the functional characterization of cDNAs encoding short-chain isoprenyl diphosphate synthases that control the partitioning of precursors for lavender terpenoids. Lavender essential oil is composed of regular and irregular monoterpenes, which are derived from linear precursors geranyl diphosphate (GPP) and lavandulyl diphosphate (LPP), respectively. Although this plant strongly expresses genes responsible for the biosynthesis of both monoterpene classes, it is unclear why regular monoterpenes dominate the oil. Here, we cloned and characterized Lavandula x intermedia cDNAs encoding geranyl diphosphate synthase (LiGPPS), geranylgeranyl diphosphate synthase (LiGGPPS) and farnesyl diphosphate synthase (LiFPPS). LiGPPS was heteromeric protein, consisting of a large subunit (LiGPPS.LSU) and a small subunit for which two different cDNAs (LiGPPS.SSU1 and LiGPPS.SSU2) were detected. Neither recombinant LiGPPS subunits was active by itself. However, when co-expressed in E. coli LiGPPS.LSU and LiGPPS.SSU1 formed an active heteromeric GPPS, while LiGPPS.LSU and LiGPPS.SSU2 did not form an active protein. Recombinant LiGGPPS, LiFPPS and LPP synthase (LPPS) proteins were active individually. Further, LiGPPS.SSU1 modified the activity of LiGGPPS (to produce GPP) in bacterial cells co-expressing both proteins. Given this, and previous evidence indicating that GPPS.SSU can modify the activity of GGPPS to GPPS in vitro and in plants, we hypothesized that LiGPPS.SSU1 modifies the activity of L. x intermedia LPP synthase (LiLPPS), thus accounting for the relatively low abundance of LPP-derived irregular monoterpenes in this plant. However, LiGPPS.SSU1 did not affect the activity of LiLPPS. These results, coupled to the observation that LiLPPS transcripts are more abundant than those of GPPS subunits in L. x intermedia flowers, suggest that regulatory mechanisms other than transcriptional control of LPPS regulate precursor partitioning in lavender flowers.
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Affiliation(s)
- Ayelign M Adal
- Department of Biology, University of British Columbia, Kelowna, BC, Canada
| | - Soheil S Mahmoud
- Department of Biology, University of British Columbia, Kelowna, BC, Canada.
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Functional Gene Network of Prenyltransferases in Arabidopsis thaliana. Molecules 2019; 24:molecules24244556. [PMID: 31842481 PMCID: PMC6943727 DOI: 10.3390/molecules24244556] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/09/2019] [Accepted: 12/10/2019] [Indexed: 12/17/2022] Open
Abstract
Prenyltransferases (PTs) are enzymes that catalyze prenyl chain elongation. Some are highly similar to each other at the amino acid level. Therefore, it is difficult to assign their function based solely on their sequence homology to functional orthologs. Other experiments, such as in vitro enzymatic assay, mutant analysis, and mutant complementation are necessary to assign their precise function. Moreover, subcellular localization can also influence the functionality of the enzymes within the pathway network, because different isoprenoid end products are synthesized in the cytosol, mitochondria, or plastids from prenyl diphosphate (prenyl-PP) substrates. In addition to in vivo functional experiments, in silico approaches, such as co-expression analysis, can provide information about the topology of PTs within the isoprenoid pathway network. There has been huge progress in the last few years in the characterization of individual Arabidopsis PTs, resulting in better understanding of their function and their topology within the isoprenoid pathway. Here, we summarize these findings and present the updated topological model of PTs in the Arabidopsis thaliana isoprenoid pathway.
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A novel single-base mutation in CaBRI1 confers dwarf phenotype and brassinosteroid accumulation in pepper. Mol Genet Genomics 2019; 295:343-356. [PMID: 31745640 DOI: 10.1007/s00438-019-01626-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Accepted: 11/07/2019] [Indexed: 01/25/2023]
Abstract
Dwarfing is the development trend of pepper breeding. It is of great practical and scientific value to generate new dwarf germplasms, and identify new genes or alleles conferring dwarf traits in pepper. In our previous study, a weakly BR-insensitive dwarf mutant, E29, was obtained by EMS mutagenesis of the pepper inbred line 6421. It can be used as a good parent material for breeding new dwarf varieties. Here, we found that this dwarf phenotype was controlled by a single recessive gene. Whole-genome resequencing, dCAPs analysis, and VIGs validation revealed that this mutation was caused by a nonsynonymous single-nucleotide mutation (C to T) in CaBRI1. An enzyme activity assay, transcriptome sequencing, and BL content determination further revealed that an amino-acid change (Pro1157Ser) in the serine/threonine protein kinase and catalytic (S_TKc) domain of CaBRI1 impaired its kinase activity and caused the transcript levels of two important genes (CaDWF4 and CaROT3) participating in BR biosynthesis to increase dramatically in the E29 mutant, accompanied by significantly increased accumulation of brassinolide (BL). Therefore, we concluded that the novel single-base mutation in CaBRI1 conferred the dwarf phenotype and resulted in brassinosteroid (BR) accumulation in pepper. This study provides a new allelic variant of the height-regulating gene CaBRI1 that has theoretical and practical values for the breeding of the plants suitable for the facility cultivation and mechanized harvesting of pepper varieties.
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Liu M, Ma Y, Du Q, Hou X, Wang M, Lu S. Functional Analysis of Polyprenyl Diphosphate Synthase Genes Involved in Plastoquinone and Ubiquinone Biosynthesis in Salvia miltiorrhiza. FRONTIERS IN PLANT SCIENCE 2019; 10:893. [PMID: 31354766 PMCID: PMC6629958 DOI: 10.3389/fpls.2019.00893] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 06/24/2019] [Indexed: 06/10/2023]
Abstract
Polyprenyl diphosphate synthase (PPS) plays important roles in the biosynthesis of functionally important plastoquinone (PQ) and ubiquinone (UQ). However, only few plant PPS genes have been functionally characterized. Through genome-wide analysis, two PPS genes, termed SmPPS1 and SmPPS2, were identified from Salvia miltiorrhiza, an economically significant Traditional Chinese Medicine material and an emerging model medicinal plant. SmPPS1 and SmPPS2 belonged to different phylogenetic subgroups of plant trans-long-chain prenyltransferases and exhibited differential tissue expression and light-induced expression patterns. Computational prediction and transient expression assays showed that SmPPS1 was localized in the chloroplasts, whereas SmPPS2 was mainly localized in the mitochondria. SmPPS2, but not SmPPS1, could functionally complement the coq1 mutation in yeast cells and catalyzed the production of UQ-9 and UQ-10. Consistently, both UQ-9 and UQ-10 were detected in S. miltiorrhiza plants. Overexpression of SmPPS2 caused significant UQ accumulation in S. miltiorrhiza transgenics, whereas down-regulation resulted in decreased UQ content. Differently, SmPPS1 overexpression significantly elevated PQ-9 content in S. miltiorrhiza. Transgenic lines showing a down-regulation of SmPPS1 expression exhibited decreased PQ-9 level, abnormal chloroplast and trichome development, and varied leaf bleaching phenotypes. These results suggest that SmPPS1 is involved in PQ-9 biosynthesis, whereas SmPPS2 is involved in UQ-9 and UQ-10 biosynthesis.
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Affiliation(s)
- Miaomiao Liu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Yimian Ma
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Qing Du
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Key Laboratory for Tibet Plateau Phytochemistry of Qinghai Province, College of Pharmacy, Qinghai Nationalities University, Xining, China
| | - Xuemin Hou
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Meizhen Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Shanfa Lu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
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Jiang Z, Gao W, Huang L. Tanshinones, Critical Pharmacological Components in Salvia miltiorrhiza. Front Pharmacol 2019; 10:202. [PMID: 30923500 PMCID: PMC6426754 DOI: 10.3389/fphar.2019.00202] [Citation(s) in RCA: 91] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 02/18/2019] [Indexed: 01/21/2023] Open
Abstract
Salvia miltiorrhiza Bunge, a member of the Lamiaceae family, is valued in traditional Chinese Medicine. Its dried root (named Danshen) has been used for hundreds of years, primarily for the treatment of cardiovascular and cerebrovascular diseases. Tanshinones are the main active ingredients in S. miltiorrhiza and exhibit significant pharmacological activities, such as antioxidant activity, anti-inflammatory activity, cardiovascular effects, and antitumor activity. Danshen dripping pill of Tianshili is an effective drug widely used in the clinical treatment of cardiovascular diseases. With the increasing demand for clinical drugs, the traditional method for extracting and separating tanshinones from medicinal plants is insufficient. Therefore, in combination with synthetic biological methods and strategies, it is necessary to analyze the biosynthetic pathway of tanshinones and construct high-yield functional bacteria to obtain tanshinones. Moreover, the biosynthesis of tanshinones has been studied for more than two decades but remains to be completely elucidated. This review will systematically present the composition, extraction and separation, pharmacological activities and biosynthesis of tanshinones from S. miltiorrhiza, with the intent to provide references for studies on other terpenoid bioactive components of traditional Chinese medicines and to provide new research strategies for the sustainable development of traditional Chinese medicine resources.
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Affiliation(s)
- Zhouqian Jiang
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- School of Pharmaceutical Sciences, Capital Medical University, Beijing, China
| | - Wei Gao
- School of Traditional Chinese Medicine, Capital Medical University, Beijing, China
- School of Pharmaceutical Sciences, Capital Medical University, Beijing, China
| | - Luqi Huang
- State Key Laboratory of Dao-di Herbs, National Resource Center for Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, China
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Abstract
Phytol, the prenyl side chain of chlorophyll, is derived from geranylgeraniol by reduction of three double bonds. Recent results demonstrated that the conversion of geranylgeraniol to phytol is linked to chlorophyll synthesis, which is catalyzed by protein complexes associated with the thylakoid membranes. One of these complexes contains light harvesting chlorophyll binding like proteins (LIL3), enzymes of chlorophyll synthesis (protoporphyrinogen oxidoreductase, POR; chlorophyll synthase, CHLG) and geranylgeranyl reductase (GGR). Phytol is not only employed for the synthesis of chlorophyll, but also for tocopherol (vitamin E), phylloquinol (vitamin K) and fatty acid phytyl ester production. Previously, it was believed that phytol is derived from reduction of geranylgeranyl-diphosphate originating from the 4-methylerythritol-5-phosphate (MEP) pathway. The identification and characterization of two kinases, VTE5 and VTE6, involved in phytol and phytyl-phosphate phosphorylation, respectively, indicated that most phytol employed for tocopherol synthesis is derived from reduction of geranylgeranylated chlorophyll to (phytol-) chlorophyll. After hydrolysis from chlorophyll, free phytol is phosphorylated by the two kinases, and phytyl-diphosphate employed for the synthesis of tocopherol and phylloquinol. The reason why some chloroplast lipids, i.e. chlorophyll, tocopherol and phylloquinol, are derived from phytol, while others, i.e. carotenoids and tocotrienols (in some plant species) are synthesized from geranylgeraniol, remains unclear.
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Minas IS, Tanou G, Krokida A, Karagiannis E, Belghazi M, Vasilakakis M, Papadopoulou KK, Molassiotis A. Ozone-induced inhibition of kiwifruit ripening is amplified by 1-methylcyclopropene and reversed by exogenous ethylene. BMC PLANT BIOLOGY 2018; 18:358. [PMID: 30558543 PMCID: PMC6296049 DOI: 10.1186/s12870-018-1584-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 11/30/2018] [Indexed: 05/29/2023]
Abstract
BACKGROUND Understanding the mechanisms involved in climacteric fruit ripening is key to improve fruit harvest quality and postharvest performance. Kiwifruit (Actinidia deliciosa cv. 'Hayward') ripening involves a series of metabolic changes regulated by ethylene. Although 1-methylcyclopropene (1-MCP, inhibitor of ethylene action) or ozone (O3) exposure suppresses ethylene-related kiwifruit ripening, how these molecules interact during ripening is unknown. RESULTS Harvested 'Hayward' kiwifruits were treated with 1-MCP and exposed to ethylene-free cold storage (0 °C, RH 95%) with ambient atmosphere (control) or atmosphere enriched with O3 (0.3 μL L- 1) for up to 6 months. Their subsequent ripening performance at 20 °C (90% RH) was characterized. Treatment with either 1-MCP or O3 inhibited endogenous ethylene biosynthesis and delayed fruit ripening at 20 °C. 1-MCP and O3 in combination severely inhibited kiwifruit ripening, significantly extending fruit storage potential. To characterize ethylene sensitivity of kiwifruit following 1-MCP and O3 treatments, fruit were exposed to exogenous ethylene (100 μL L- 1, 24 h) upon transfer to 20 °C following 4 and 6 months of cold storage. Exogenous ethylene treatment restored ethylene biosynthesis in fruit previously exposed in an O3-enriched atmosphere. Comparative proteomics analysis showed separate kiwifruit ripening responses, unraveled common 1-MCP- and O3-dependent metabolic pathways and identified specific proteins associated with these different ripening behaviors. Protein components that were differentially expressed following exogenous ethylene exposure after 1-MCP or O3 treatment were identified and their protein-protein interaction networks were determined. The expression of several kiwifruit ripening related genes, such as 1-aminocyclopropane-1-carboxylic acid oxidase (ACO1), ethylene receptor (ETR1), lipoxygenase (LOX1), geranylgeranyl diphosphate synthase (GGP1), and expansin (EXP2), was strongly affected by O3, 1-MCP, their combination, and exogenously applied ethylene. CONCLUSIONS Our findings suggest that the combination of 1-MCP and O3 functions as a robust repressive modulator of kiwifruit ripening and provide new insight into the metabolic events underlying ethylene-induced and ethylene-independent ripening outcomes.
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Affiliation(s)
- Ioannis S. Minas
- Laboratory of Pomology, Department of Agriculture, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
- Department of Horticulture and Landscape Architecture, Colorado State University, 301 University Avenue, Fort Collins, CO 80523 USA
| | - Georgia Tanou
- Laboratory of Pomology, Department of Agriculture, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
- Institute of Soil and Water Resources, ELGO-DEMETER, 57001 Thessaloniki, Greece
| | - Afroditi Krokida
- Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, 41500 Larissa, Greece
| | - Evangelos Karagiannis
- Laboratory of Pomology, Department of Agriculture, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - Maya Belghazi
- UMR 7286 - CRN2M, Centre d’ Analyses Protéomiques de Marseille (CAPM), CNRS, Aix-Marseille Université, Marseille, France
| | - Miltiadis Vasilakakis
- Laboratory of Pomology, Department of Agriculture, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
| | - Kalliope K. Papadopoulou
- Department of Biochemistry and Biotechnology, University of Thessaly, Biopolis, 41500 Larissa, Greece
| | - Athanassios Molassiotis
- Laboratory of Pomology, Department of Agriculture, Aristotle University of Thessaloniki, University Campus, 54124 Thessaloniki, Greece
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Schimmel BCJ, Alba JM, Wybouw N, Glas JJ, Meijer TT, Schuurink RC, Kant MR. Distinct Signatures of Host Defense Suppression by Plant-Feeding Mites. Int J Mol Sci 2018; 19:E3265. [PMID: 30347842 PMCID: PMC6214137 DOI: 10.3390/ijms19103265] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 10/12/2018] [Accepted: 10/14/2018] [Indexed: 01/09/2023] Open
Abstract
Tomato plants are attacked by diverse herbivorous arthropods, including by cell-content-feeding mites, such as the extreme generalist Tetranychus urticae and specialists like Tetranychus evansi and Aculops lycopersici. Mite feeding induces plant defense responses that reduce mite performance. However, T. evansi and A. lycopersici suppress plant defenses via poorly understood mechanisms and, consequently, maintain a high performance on tomato. On a shared host, T. urticae can be facilitated by either of the specialist mites, likely due to the suppression of plant defenses. To better understand defense suppression and indirect plant-mediated interactions between herbivorous mites, we used gene-expression microarrays to analyze the transcriptomic changes in tomato after attack by either a single mite species (T. urticae, T. evansi, A. lycopersici) or two species simultaneously (T. urticae plus T. evansi or T. urticae plus A. lycopersici). Additionally, we assessed mite-induced changes in defense-associated phytohormones using LC-MS/MS. Compared to non-infested controls, jasmonates (JAs) and salicylate (SA) accumulated to higher amounts upon all mite-infestation treatments, but the response was attenuated after single infestations with defense-suppressors. Strikingly, whereas 8 to 10% of tomato genes were differentially expressed upon single infestations with T. urticae or A. lycopersici, respectively, only 0.1% was altered in T. evansi-infested plants. Transcriptome analysis of dual-infested leaves revealed that A. lycopersici primarily suppressed T. urticae-induced JA defenses, while T. evansi dampened T. urticae-triggered host responses on a transcriptome-wide scale. The latter suggests that T. evansi not solely down-regulates plant gene expression, but rather directs it back towards housekeeping levels. Our results provide valuable new insights into the mechanisms underlying host defense suppression and the plant-mediated facilitation of competing herbivores.
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Affiliation(s)
- Bernardus C J Schimmel
- Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240, 1090 GE Amsterdam, The Netherlands.
| | - Juan M Alba
- Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240, 1090 GE Amsterdam, The Netherlands.
| | - Nicky Wybouw
- Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240, 1090 GE Amsterdam, The Netherlands.
- Department of Plants and Crops, Faculty of Bioscience Engineering, Ghent University, B-9000 Ghent, Belgium.
| | - Joris J Glas
- Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240, 1090 GE Amsterdam, The Netherlands.
| | - Tomas T Meijer
- Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240, 1090 GE Amsterdam, The Netherlands.
| | - Robert C Schuurink
- Department of Plant Physiology, Swammerdam Institute for Life Sciences, University of Amsterdam, P.O. Box 94215, 1090 GE Amsterdam, The Netherlands.
| | - Merijn R Kant
- Department of Evolutionary and Population Biology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, P.O. Box 94240, 1090 GE Amsterdam, The Netherlands.
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Chuang YC, Hung YC, Tsai WC, Chen WH, Chen HH. PbbHLH4 regulates floral monoterpene biosynthesis in Phalaenopsis orchids. JOURNAL OF EXPERIMENTAL BOTANY 2018; 69:4363-4377. [PMID: 29982590 PMCID: PMC6093345 DOI: 10.1093/jxb/ery246] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 06/20/2018] [Indexed: 05/22/2023]
Abstract
Floral scent is an important factor in attracting pollinators and repelling florivores. In Phalaenopsis bellina (Orchidaceae), the major floral scent components are monoterpenoids. Previously, we determined that expression of GERANYL DIPHOSPHATE SYNTHASE (PbGDPS) is highly correlated with monoterpene biosynthesis in Phalaenosis orchids. Here, we found that both cis- and trans-regulation were present on the GDPS promoters, with trans-regulation playing a key role. To investigate the regulation of biosynthesis of floral scent, we compared the transcriptomic data of two Phalaenopsis orchids with contrasting scent phenotypes. Eight transcription factors (TFs) that exhibited sequential elevation in abundance through floral development in P. bellina were identified, and their transcript levels were higher in the scented orchid than the scentless one. Five of these TFs transactivated several structural genes involved in monoterpene biosynthesis including PbbHLH4, PbbHLH6, PbbZIP4, PbERF1, and PbNAC1. Ectopic transient expression of each of these TFs in scentless orchids resulted in stimulation of terpenoid biosynthesis. PbbHLH4 most profoundly induced monoterpene biosynthesis, with a 950-fold increase of monoterpenoid production in the scentless orchid. In conclusion, we determined that biosynthesis of orchid floral monoterpenes was sequentially regulated, with PbbHLH4 playing a crucial role for monoterpene biosynthesis.
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Affiliation(s)
- Yu-Chen Chuang
- Department of Life Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Yi-Chu Hung
- Department of Life Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Wen-Chieh Tsai
- Institute of Tropical Plant Sciences, National Cheng Kung University, Tainan, Taiwan
- Orchid Research and Development Center, National Cheng Kung University, Tainan, Taiwan
| | - Wen-Huei Chen
- Orchid Research and Development Center, National Cheng Kung University, Tainan, Taiwan
| | - Hong-Hwa Chen
- Department of Life Sciences, National Cheng Kung University, Tainan, Taiwan
- Institute of Tropical Plant Sciences, National Cheng Kung University, Tainan, Taiwan
- Orchid Research and Development Center, National Cheng Kung University, Tainan, Taiwan
- Correspondence:
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Ren XX, Xue JQ, Wang SL, Xue YQ, Zhang P, Jiang HD, Zhang XX. Proteomic analysis of tree peony (Paeonia ostii 'Feng Dan') seed germination affected by low temperature. JOURNAL OF PLANT PHYSIOLOGY 2018; 224-225:56-67. [PMID: 29597068 DOI: 10.1016/j.jplph.2017.12.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Revised: 12/22/2017] [Accepted: 12/22/2017] [Indexed: 06/08/2023]
Abstract
Seed germination is a critical process that is influenced by various factors. In the present study, the effect of low temperature (4 °C) on tree peony seed germination was investigated. Compared to seeds maintained at 25 °C, germination was inhibited when seeds were kept at 4 °C. Furthermore, low-temperature exposure of seeds resulted in a delay in water uptake, starch degradation, and soluble sugar consumption and a subsequent increase in soluble protein levels. Two-dimensional gel electrophoresis (2-DE) proteomic analysis identified 100 protein spots. Comparative analysis indicated that low-temperature exposure apparently mainly affected glycolysis and the tricarboxylic acid (TCA) cycle, while also significantly affecting proteometabolism-related factors. Moreover, low-temperature exposure led to the induction of abscisic acid, whereas the gibberellin pathway was not affected. Further comparison of the two temperature conditions showed that low-temperature exposure delays carbohydrate metabolism, adenosine triphosphate (ATP) production, respiration, and proteolysis and increases defense response factors. To further examine the obtained proteomic findings, four genes were evaluated by quantitative polymerase chain reaction (qPCR). The obtained transcriptional results for the GAPC gene coincided with the translational results, thus further suggesting that the delay in glycolysis may play a key role in low-temperature-induced inhibition of seed germination. However, the other three genes examined, which included FPP synthase, PCNT115, and endochitinase, showed non-correlative transcriptional and translational profiles. Our results suggest that the exposure of tree peony seeds to low temperature results in a delay in the degradation of starch and other metabolites, which in turn affects glycolysis and some other processes, thereby ultimately inhibiting seed germination.
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Affiliation(s)
- Xiu-Xia Ren
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture and Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Jing-Qi Xue
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture and Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Shun-Li Wang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture and Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Yu-Qian Xue
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture and Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Ping Zhang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture and Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Hai-Dong Jiang
- College of Agriculture, Nanjing Agricultural University, Nanjing, China.
| | - Xiu-Xin Zhang
- Key Laboratory of Biology and Genetic Improvement of Horticultural Crops, Ministry of Agriculture and Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing, China.
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Liao P, Chen X, Wang M, Bach TJ, Chye M. Improved fruit α-tocopherol, carotenoid, squalene and phytosterol contents through manipulation of Brassica juncea 3-HYDROXY-3-METHYLGLUTARYL-COA SYNTHASE1 in transgenic tomato. PLANT BIOTECHNOLOGY JOURNAL 2018; 16:784-796. [PMID: 28881416 PMCID: PMC5814594 DOI: 10.1111/pbi.12828] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 08/20/2017] [Accepted: 08/26/2017] [Indexed: 05/20/2023]
Abstract
3-Hydroxy-3-methylglutaryl-coenzyme A synthase (HMGS) in the mevalonate (MVA) pathway generates isoprenoids including phytosterols. Dietary phytosterols are important because they can lower blood cholesterol levels. Previously, the overexpression of Brassica juncea wild-type (wt) and mutant (S359A) BjHMGS1 in Arabidopsis up-regulated several genes in sterol biosynthesis and increased sterol content. Recombinant S359A had earlier displayed a 10-fold higher in vitro enzyme activity. Furthermore, tobacco HMGS overexpressors (OEs) exhibited improved sterol content, plant growth and seed yield. Increased growth and seed yield in tobacco OE-S359A over OE-wtBjHMGS1 coincided with elevations in NtSQS expression and sterol content. Herein, the overexpression of wt and mutant (S359A) BjHMGS1 in a crop plant, tomato (Solanum lycopersicum), caused an accumulation of MVA-derived squalene and phytosterols, as well as methylerythritol phosphate (MEP)-derived α-tocopherol (vitamin E) and carotenoids, which are important to human health as antioxidants. In tomato HMGS-OE seedlings, genes associated with the biosyntheses of C10, C15 and C20 universal precursors of isoprenoids, phytosterols, brassinosteroids, dolichols, methylerythritol phosphate, carotenoid and vitamin E were up-regulated. In OE-S359A tomato fruits, increased squalene and phytosterol contents over OE-wtBjHMGS1 were attributed to heightened SlHMGR2, SlFPS1, SlSQS and SlCYP710A11 expression. In both tomato OE-wtBjHMGS1 and OE-S359A fruits, the up-regulation of SlGPS and SlGGPPS1 in the MEP pathway that led to α-tocopherol and carotenoid accumulation indicated cross-talk between the MVA and MEP pathways. Taken together, the manipulation of BjHMGS1 represents a promising strategy to simultaneously elevate health-promoting squalene, phytosterols, α-tocopherol and carotenoids in tomato, an edible fruit.
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Affiliation(s)
- Pan Liao
- School of Biological SciencesThe University of Hong KongPokfulamHong KongChina
- Partner State Key Laboratory of AgrobiotechnologyCUHKShatinHong KongChina
| | - Xinjian Chen
- School of Biological SciencesThe University of Hong KongPokfulamHong KongChina
| | - Mingfu Wang
- School of Biological SciencesThe University of Hong KongPokfulamHong KongChina
| | - Thomas J. Bach
- Centre National de la Recherche ScientifiqueUPR 2357Institut de Biologie Moléculaire des PlantesStrasbourgFrance
| | - Mee‐Len Chye
- School of Biological SciencesThe University of Hong KongPokfulamHong KongChina
- Partner State Key Laboratory of AgrobiotechnologyCUHKShatinHong KongChina
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Wang Y, Hu Z, Zhang J, Yu X, Guo JE, Liang H, Liao C, Chen G. Silencing SlMED18, tomato Mediator subunit 18 gene, restricts internode elongation and leaf expansion. Sci Rep 2018; 8:3285. [PMID: 29459728 PMCID: PMC5818486 DOI: 10.1038/s41598-018-21679-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Accepted: 02/05/2018] [Indexed: 01/04/2023] Open
Abstract
Mediator complex, a conserved multi-protein, is necessary for controlling RNA polymerase II (Pol II) transcription in eukaryotes. Given little is known about them in tomato, a tomato Mediator subunit 18 gene was isolated and named SlMED18. To further explore the function of SlMED18, the transgenic tomato plants targeting SlMED18 by RNAi-mediated gene silencing were generated. The SlMED18-RNAi lines exhibited multiple developmental defects, including smaller size and slower growth rate of plant and significantly smaller compound leaves. The contents of endogenous bioactive GA3 in SlMED18 silenced lines were slightly less than that in wild type. Furthermore, qRT-PCR analysis indicated that expression of gibberellins biosynthesis genes such as SlGACPS and SlGA20x2, auxin transport genes (PIN1, PIN4, LAX1 and LAX2) and several key regulators, KNOX1, KNOX2, PHAN and LANCEOLATE(LA), which involved in the leaf morphogenesis were significantly down-regulated in SlMED18-RNAi lines. These results illustrated that SlMED18 plays an essential role in regulating plant internode elongation and leaf expansion in tomato plants and it acts as a key positive regulator of gibberellins biosynthesis and signal transduction as well as auxin proper transport signalling. These findings are the basis for understanding the function of the individual Mediator subunits in tomato.
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Affiliation(s)
- Yunshu Wang
- Laboratory of molecular biology of tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Zongli Hu
- Laboratory of molecular biology of tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Jianling Zhang
- Laboratory of molecular biology of tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - XiaoHui Yu
- Laboratory of molecular biology of tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Jun-E Guo
- Laboratory of molecular biology of tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Honglian Liang
- Laboratory of molecular biology of tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Changguang Liao
- Laboratory of molecular biology of tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China
| | - Guoping Chen
- Laboratory of molecular biology of tomato, Bioengineering College, Chongqing University, Chongqing, People's Republic of China.
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Li G, Xi J, Ji X, Li MZ, Xie DY. Non-plastidial expression of a synthetic insect geranyl pyrophosphate synthase effectively increases tobacco plant biomass. JOURNAL OF PLANT PHYSIOLOGY 2018; 221:144-155. [PMID: 29277027 DOI: 10.1016/j.jplph.2017.12.014] [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: 07/14/2017] [Revised: 12/08/2017] [Accepted: 12/16/2017] [Indexed: 06/07/2023]
Abstract
Designing effective synthetic genes of interest is a fundamental step in plant synthetic biology for biomass. Geranyl pyrophosphate (diphosphate) synthase (GPPS) catalyzes a bottleneck step toward terpenoid metabolism. We previously designed and synthesized a plant (Arabidopsis thaliana)-insect (Myzus persicae, Mp) GPPS- human influenza hemagglutinin (HA) cDNA, namely PTP-MpGPPS-HA (or PTP-sMpGPPS-HA, s: synthetic), to localize the protein in plastids and improve plant biomass. To better understand the effects of different subcellular localizations on plant performance, herein we report PTP-sMpGPPS-HA re-design to synthesize a new MpGPPS-HA cDNA, namely sMpGPPS-HA, to express a non-plastidial sMpGPPS-HA protein. The sMpGPPS-HA cDNA driven by a 2 × S 35S promoter was introduced into Nicotiana tabacum Xanthi. PTP-MpGPPS-HA and PMDC84 vector transgenic plants were also generated as positive and negative controls, respectively. Eighteen to twenty transgenic T0 lines were generated for each sMpGPPS-HA, PTP-sMpGPPS-HA, and PMDC84. Transcriptional genotyping analysis demonstrated the expression of sMpGPPS-HA in transgenic plants. Confocal microscopy analysis of transgenic progeny demonstrated the non-plastidial localization of sMpGPPS-HA. Growth of T1 transgenic and wild-type control plants showed that the expression of sMpGPPS-HA effectively increased plant height by 50-80%, leaf numbers and sizes, and dry biomass by 60-80%. Calculation of the vegetative growth rates showed that the expression of sMpGPPS-HA increased plant height each week. Moreover, sMpGPPS-HA expression promoted early flowering and reduced leaf carotenoid levels. In conclusion, non-plastidial expression of the novel sMpGPPS-HA was effective for improving tobacco growth and biomass. Our data indicate that research examining different subcellular localizations facilitates a better understanding of in planta functions of proteins encoded by synthetic cDNAs.
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Affiliation(s)
- Gui Li
- Department of Plant & Microbial Biology, North Carolina State University, Raleigh, NC, 27695, United States; State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Key Laboratory of Tree Breeding and Cultivation of the State Forestry Administration, Beijing, 100091, China
| | - Jing Xi
- Department of Plant & Microbial Biology, North Carolina State University, Raleigh, NC, 27695, United States
| | - Xiaoming Ji
- Department of Plant & Microbial Biology, North Carolina State University, Raleigh, NC, 27695, United States
| | - Ming-Zhuo Li
- Department of Plant & Microbial Biology, North Carolina State University, Raleigh, NC, 27695, United States
| | - De-Yu Xie
- Department of Plant & Microbial Biology, North Carolina State University, Raleigh, NC, 27695, United States.
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Reddy VA, Wang Q, Dhar N, Kumar N, Venkatesh PN, Rajan C, Panicker D, Sridhar V, Mao HZ, Sarojam R. Spearmint R2R3-MYB transcription factor MsMYB negatively regulates monoterpene production and suppresses the expression of geranyl diphosphate synthase large subunit (MsGPPS.LSU). PLANT BIOTECHNOLOGY JOURNAL 2017; 15:1105-1119. [PMID: 28160379 PMCID: PMC5552485 DOI: 10.1111/pbi.12701] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2016] [Revised: 01/15/2017] [Accepted: 01/27/2017] [Indexed: 05/13/2023]
Abstract
Many aromatic plants, such as spearmint, produce valuable essential oils in specialized structures called peltate glandular trichomes (PGTs). Understanding the regulatory mechanisms behind the production of these important secondary metabolites will help design new approaches to engineer them. Here, we identified a PGT-specific R2R3-MYB gene, MsMYB, from comparative RNA-Seq data of spearmint and functionally characterized it. Analysis of MsMYB-RNAi transgenic lines showed increased levels of monoterpenes, and MsMYB-overexpressing lines exhibited decreased levels of monoterpenes. These results suggest that MsMYB is a novel negative regulator of monoterpene biosynthesis. Ectopic expression of MsMYB, in sweet basil and tobacco, perturbed sesquiterpene- and diterpene-derived metabolite production. In addition, we found that MsMYB binds to cis-elements of MsGPPS.LSU and suppresses its expression. Phylogenetic analysis placed MsMYB in subgroup 7 of R2R3-MYBs whose members govern phenylpropanoid pathway and are regulated by miR858. Analysis of transgenic lines showed that MsMYB is more specific to terpene biosynthesis as it did not affect metabolites derived from phenylpropanoid pathway. Further, our results indicate that MsMYB is probably not regulated by miR858, like other members of subgroup 7.
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Affiliation(s)
- Vaishnavi Amarr Reddy
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore, Singapore
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Qian Wang
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore, Singapore
| | - Niha Dhar
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore, Singapore
| | - Nadimuthu Kumar
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore, Singapore
| | | | - Chakravarthy Rajan
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore, Singapore
| | - Deepa Panicker
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore, Singapore
| | - Vishweshwaran Sridhar
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore, Singapore
| | - Hui-Zhu Mao
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore, Singapore
| | - Rajani Sarojam
- Temasek Life Sciences Laboratory, National University of Singapore, Singapore, Singapore
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Champagne A, Boutry M. A comprehensive proteome map of glandular trichomes of hop (Humulus lupulus
L.) female cones: Identification of biosynthetic pathways of the major terpenoid-related compounds and possible transport proteins. Proteomics 2017; 17. [DOI: 10.1002/pmic.201600411] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 01/23/2017] [Accepted: 02/09/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Antoine Champagne
- Institut des Sciences de la Vie; Université catholique de Louvain; Louvain-la-Neuve Belgium
| | - Marc Boutry
- Institut des Sciences de la Vie; Université catholique de Louvain; Louvain-la-Neuve Belgium
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31
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Yin JL, Wong WS, Jang IC, Chua NH. Co-expression of peppermint geranyl diphosphate synthase small subunit enhances monoterpene production in transgenic tobacco plants. THE NEW PHYTOLOGIST 2017; 213:1133-1144. [PMID: 28079933 DOI: 10.1111/nph.14280] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 09/10/2016] [Indexed: 05/03/2023]
Abstract
Monoterpenes are important for plant survival and useful to humans. In addition to their function in plant defense, monoterpenes are also used as flavors, fragrances and medicines. Several metabolic engineering strategies have been explored to produce monoterpene in tobacco but only trace amounts of monoterpenes have been detected. We investigated the effects of Solanum lycopersicum 1-deoxy-d-xylulose-5-phosphate synthase (SlDXS), Arabidopsis thaliana geranyl diphosphate synthase 1 (AtGPS) and Mentha × piperita geranyl diphosphate synthase small subunit (MpGPS.SSU) on production of monoterpene and geranylgeranyl diphosphate (GGPP) diversities, and plant morphology by transient expression in Nicotiana benthamiana and overexpression in transgenic Nicotiana tabacum. We showed that MpGPS.SSU could enhance the production of various monoterpenes such as (-)-limonene, (-)-linalool, (-)-α-pinene/β-pinene or myrcene, in transgenic tobacco by elevating geranyl diphosphate synthase (GPS) activity. In addition, overexpression of MpGPS.SSU in tobacco caused early flowering phenotype and increased shoot branching by elevating contents of GA3 and cytokinins due to upregulated transcript levels of several plastidic 2-C-methyl-d-erythritol-4-phosphate (MEP) pathway genes, geranylgeranyl diphosphate synthases 3 (GGPPS3) and GGPPS4. Our method would allow the identification of new monoterpene synthase genes using transient expression in N. benthamiana and the improvement of monoterpene production in transgenic tobacco plants.
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Affiliation(s)
- Jun-Lin Yin
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore, 117604, Singapore
| | - Woon-Seng Wong
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore, 117604, Singapore
| | - In-Cheol Jang
- Temasek Life Sciences Laboratory, 1 Research Link, National University of Singapore, Singapore, 117604, Singapore
| | - Nam-Hai Chua
- Laboratory of Plant Molecular Biology, The Rockefeller University, 1230 York Avenue, New York, NY, 10065, USA
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32
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Digital Gene Expression Profiling to Explore Differentially Expressed Genes Associated with Terpenoid Biosynthesis during Fruit Development in Litsea cubeba. Molecules 2016; 21:molecules21091251. [PMID: 27657027 PMCID: PMC6272835 DOI: 10.3390/molecules21091251] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 08/25/2016] [Accepted: 09/13/2016] [Indexed: 12/22/2022] Open
Abstract
Mountain pepper (Litseacubeba (Lour.) Pers.) (Lauraceae) is an important industrial crop as an ingredient in cosmetics, pesticides, food additives and potential biofuels. These properties are attributed to monoterpenes and sesquiterpenes. However, there is still no integrated model describing differentially expressed genes (DEGs) involved in terpenoid biosynthesis during the fruit development of L. cubeba. Here, we performed digital gene expression (DGE) using the Illumina NGS platform to evaluated changes in gene expression during fruit development in L. cubeba. DGE generated expression data for approximately 19354 genes. Fruit at 60 days after flowering (DAF) served as the control, and a total of 415, 1255, 449 and 811 up-regulated genes and 505, 1351, 1823 and 1850 down-regulated genes were identified at 75, 90, 105 and 135 DAF, respectively. Pathway analysis revealed 26 genes involved in terpenoid biosynthesis pathways. Three DEGs had continued increasing or declining trends during the fruit development. The quantitative real-time PCR (qRT-PCR) results of five differentially expressed genes were consistent with those obtained from Illumina sequencing. These results provide a comprehensive molecular biology background for research on fruit development, and information that should aid in metabolic engineering to increase the yields of L. cubeba essential oil.
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33
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Unterseer S, Pophaly SD, Peis R, Westermeier P, Mayer M, Seidel MA, Haberer G, Mayer KFX, Ordas B, Pausch H, Tellier A, Bauer E, Schön CC. A comprehensive study of the genomic differentiation between temperate Dent and Flint maize. Genome Biol 2016; 17:137. [PMID: 27387028 PMCID: PMC4937532 DOI: 10.1186/s13059-016-1009-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 06/15/2016] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Dent and Flint represent two major germplasm pools exploited in maize breeding. Several traits differentiate the two pools, like cold tolerance, early vigor, and flowering time. A comparative investigation of their genomic architecture relevant for quantitative trait expression has not been reported so far. Understanding the genomic differences between germplasm pools may contribute to a better understanding of the complementarity in heterotic patterns exploited in hybrid breeding and of mechanisms involved in adaptation to different environments. RESULTS We perform whole-genome screens for signatures of selection specific to temperate Dent and Flint maize by comparing high-density genotyping data of 70 American and European Dent and 66 European Flint inbred lines. We find 2.2 % and 1.4 % of the genes are under selective pressure, respectively, and identify candidate genes associated with agronomic traits known to differ between the two pools. Taking flowering time as an example for the differentiation between Dent and Flint, we investigate candidate genes involved in the flowering network by phenotypic analyses in a Dent-Flint introgression library and find that the Flint haplotypes of the candidates promote earlier flowering. Within the flowering network, the majority of Flint candidates are associated with endogenous pathways in contrast to Dent candidate genes, which are mainly involved in response to environmental factors like light and photoperiod. The diversity patterns of the candidates in a unique panel of more than 900 individuals from 38 European landraces indicate a major contribution of landraces from France, Germany, and Spain to the candidate gene diversity of the Flint elite lines. CONCLUSIONS In this study, we report the investigation of pool-specific differences between temperate Dent and Flint on a genome-wide scale. The identified candidate genes represent a promising source for the functional investigation of pool-specific haplotypes in different genetic backgrounds and for the evaluation of their potential for future crop improvement like the adaptation to specific environments.
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Affiliation(s)
- Sandra Unterseer
- Plant Breeding, TUM School of Life Sciences Weihenstephan, Technical University of Munich, 85354, Freising, Germany
| | - Saurabh D Pophaly
- Section of Population Genetics, TUM School of Life Sciences Weihenstephan, Technical University of Munich, 85354, Freising, Germany
| | - Regina Peis
- Plant Breeding, TUM School of Life Sciences Weihenstephan, Technical University of Munich, 85354, Freising, Germany
| | - Peter Westermeier
- Plant Breeding, TUM School of Life Sciences Weihenstephan, Technical University of Munich, 85354, Freising, Germany.,Present Address: Institute for Crop Science and Plant Breeding, Bavarian State Research Center, 85354, Freising, Germany
| | - Manfred Mayer
- Plant Breeding, TUM School of Life Sciences Weihenstephan, Technical University of Munich, 85354, Freising, Germany
| | - Michael A Seidel
- Plant Genome and System Biology, Helmholtz Zentrum München, 85764, Neuherberg, Germany
| | - Georg Haberer
- Plant Genome and System Biology, Helmholtz Zentrum München, 85764, Neuherberg, Germany
| | - Klaus F X Mayer
- Plant Genome and System Biology, Helmholtz Zentrum München, 85764, Neuherberg, Germany
| | - Bernardo Ordas
- Misión Biológica de Galicia, Spanish National Research Council (CSIC), 36080, Pontevedra, Spain
| | - Hubert Pausch
- Animal Breeding, TUM School of Life Sciences Weihenstephan, Technical University of Munich, 85354, Freising, Germany
| | - Aurélien Tellier
- Section of Population Genetics, TUM School of Life Sciences Weihenstephan, Technical University of Munich, 85354, Freising, Germany
| | - Eva Bauer
- Plant Breeding, TUM School of Life Sciences Weihenstephan, Technical University of Munich, 85354, Freising, Germany
| | - Chris-Carolin Schön
- Plant Breeding, TUM School of Life Sciences Weihenstephan, Technical University of Munich, 85354, Freising, Germany.
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Xi J, Rossi L, Lin X, Xie DY. Overexpression of a synthetic insect-plant geranyl pyrophosphate synthase gene in Camelina sativa alters plant growth and terpene biosynthesis. PLANTA 2016; 244:215-30. [PMID: 27023458 DOI: 10.1007/s00425-016-2504-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 03/17/2016] [Indexed: 05/18/2023]
Abstract
A novel plastidial homodimeric insect-plant geranyl pyrophosphate synthase gene is synthesized from three different cDNA origins. Its overexpression in Camelina sativa effectively alters plant development and terpenoid metabolism. Geranyl pyrophosphate synthase (GPPS) converts one isopentenyl pyrophosphate and dimethylallyl pyrophosphate to GPP. Here, we report a synthetic insect-plant GPPS gene and effects of its overexpression on plant growth and terpenoid metabolism of Camelina sativa. We synthesized a 1353-bp cDNA, namely PTP-MpGPPS. This synthetic cDNA was composed of a 1086-bp cDNA fragment encoding a small GPPS isomer of the aphid Myzus persicae (Mp), 240-bp Arabidopsis thaliana cDNA fragment encoding a plastidial transit peptide (PTP), and a 27-bp short cDNA fragment encoding a human influenza hemagglutinin tag peptide. Structural modeling showed that the deduced protein was a homodimeric prenyltransferase. Confocal microscopy analysis demonstrated that the PTP-MpGPPS fused with green florescent protein was localized in the plastids. The synthetic PTP-MpGPPS cDNA driven by 2 × 35S promoters was introduced into Camelina (Camelina sativa) by Agrobacterium-mediated transformation and its overexpression in transgenic plants were demonstrated by western blot. T2 and T3 progeny of transgenic plants developed larger leaves, grew more and longer internodes, and flowered earlier than wild-type plants. Metabolic analysis showed that the levels of beta-amyrin and campesterol were higher in tissues of transgenic plants than in those of wild-type plants. Fast isoprene sensor analysis demonstrated that transgenic Camelina plants emitted significantly less isoprene than wild-type plants. In addition, transcriptional analyses revealed that the expression levels of gibberellic acid and brassinosteroids-responsive genes were higher in transgenic plants than in wild-type plants. Taken together, these data demonstrated that this novel synthetic insect-plant GPPS cDNA was effective to improve growth traits and alter terpenoid metabolism of Camelina.
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Affiliation(s)
- Jing Xi
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, 27695, USA
| | - Lorenzo Rossi
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, 27695, USA
| | - Xiuli Lin
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, 27695, USA
| | - De-Yu Xie
- Department of Plant and Microbial Biology, North Carolina State University, Raleigh, NC, 27695, USA.
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35
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Nemchinov LG, Boutanaev AM, Postnikova OA. Virus-induced gene silencing of the RPC5-like subunit of RNA polymerase III caused pleiotropic effects in Nicotiana benthamiana. Sci Rep 2016; 6:27785. [PMID: 27282827 PMCID: PMC4901293 DOI: 10.1038/srep27785] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 05/24/2016] [Indexed: 12/30/2022] Open
Abstract
In eukaryotic cells, RNA polymerase III is highly conserved and transcribes housekeeping genes such as ribosomal 5S rRNA, tRNA and other small RNAs. The RPC5-like subunit is one of the 17 subunits forming RNAPIII and its exact functional roles in the transcription are poorly understood. In this work, we report that virus-induced gene silencing of transcripts encoding a putative RPC5-like subunit of the RNA Polymerase III in a model species Nicotiana benthamiana had pleiotropic effects, including but not limited to severe dwarfing appearance, chlorosis, nearly complete reduction of internodes and abnormal leaf shape. Using transcriptomic analysis, we identified genes and pathways affected by RPC5 silencing and thus presumably related to the cellular roles of the subunit as well as to the downstream cascade of reactions in response to partial loss of RNA Polymerase III function. Our results suggest that silencing of the RPC5L in N. benthamiana disrupted not only functions commonly associated with the core RNA Polymerase III transcripts, but also more diverse cellular processes, including responses to stress. We believe this is the first demonstration that activity of the RPC5 subunit is critical for proper functionality of RNA Polymerase III and normal plant development.
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Affiliation(s)
- Lev G. Nemchinov
- USDA/ARS, Beltsville Agricultural Research Center, Molecular Plant Pathology Laboratory, Beltsville MD 20705, USA
| | - Alexander M. Boutanaev
- Institute of Basic Biological Problems, Russian Academy of Sciences, 2 Institute Street, Pushchino, Moscow Region, 142292, Russia
| | - Olga A. Postnikova
- USDA/ARS, Beltsville Agricultural Research Center, Molecular Plant Pathology Laboratory, Beltsville MD 20705, USA
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36
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Jongedijk E, Cankar K, Buchhaupt M, Schrader J, Bouwmeester H, Beekwilder J. Biotechnological production of limonene in microorganisms. Appl Microbiol Biotechnol 2016; 100:2927-38. [PMID: 26915992 PMCID: PMC4786606 DOI: 10.1007/s00253-016-7337-7] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Revised: 01/17/2016] [Accepted: 01/18/2016] [Indexed: 11/25/2022]
Abstract
This mini review describes novel, biotechnology-based, ways of producing the monoterpene limonene. Limonene is applied in relatively highly priced products, such as fragrances, and also has applications with lower value but large production volume, such as biomaterials. Limonene is currently produced as a side product from the citrus juice industry, but the availability and quality are fluctuating and may be insufficient for novel bulk applications. Therefore, complementary microbial production of limonene would be interesting. Since limonene can be derivatized to high-value compounds, microbial platforms also have a great potential beyond just producing limonene. In this review, we discuss the ins and outs of microbial limonene production in comparison with plant-based and chemical production. Achievements and specific challenges for microbial production of limonene are discussed, especially in the light of bulk applications such as biomaterials.
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Affiliation(s)
- Esmer Jongedijk
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, Wageningen, 6708, PB, The Netherlands
| | - Katarina Cankar
- Plant Research International, PO Box 16, 6700, AA, Wageningen, The Netherlands
| | - Markus Buchhaupt
- DECHEMA Research Institute, Biochemical Engineering, Theodor Heuss-Allee 25, 60486, Frankfurt am Main, Germany
| | - Jens Schrader
- DECHEMA Research Institute, Biochemical Engineering, Theodor Heuss-Allee 25, 60486, Frankfurt am Main, Germany
| | - Harro Bouwmeester
- Laboratory of Plant Physiology, Wageningen University, Droevendaalsesteeg 1, Wageningen, 6708, PB, The Netherlands
| | - Jules Beekwilder
- Plant Research International, PO Box 16, 6700, AA, Wageningen, The Netherlands.
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Liu Z, Zhou J, Wu R, Xu J. Mechanism of Assembling Isoprenoid Building Blocks 1. Elucidation of the Structural Motifs for Substrate Binding in Geranyl Pyrophosphate Synthase. J Chem Theory Comput 2015; 10:5057-67. [PMID: 26584386 DOI: 10.1021/ct500607n] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Terpenes (isoprenoids) represent the most functionally and structurally diverse group of natural products. Terpenes are assembled from two building blocks, isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP or DPP), by prenyltransferases (PTSs). Geranyl pyrophosphate synthase (GPPS) is the enzyme that assembles DPP and IPP in the first step of chain elongation during isoprenoid biosynthesis. The mechanism by which GPPS assembles the terpene precursor remains unknown; elucidating this mechanism will help in development of new technology to generate novel natural product-like scaffolds. With classic and QM/MM MD simulations, an "open-closed" conformation change of the catalytic pocket was observed in the GPPS active site at its large subunit (LSU), and a critical salt bridge between Asp91(in loop 1) and Lys239(in loop 2) was identified. The salt bridge is responsible for opening or closing the catalytic pocket. Meanwhile, the small subunit (SSU) regulates the size and shape of the hydrophobic pocket to flexibly host substrates with different shapes and sizes (DPP/GPP/FPP, C5/C10/C15). Further QM/MM MD simulations were carried out to explore the binding modes for the different substrates catalyzed by GPPS. Our simulations suggest that the key residues (Asp91, Lys239, and Gln156) are good candidates for site-directed mutagenesis and may help in protein engineering.
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Affiliation(s)
- Zhihong Liu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University , 132 East Circle at University City, Guangzhou 510006, China
| | - Jingwei Zhou
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University , 132 East Circle at University City, Guangzhou 510006, China
| | - Ruibo Wu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University , 132 East Circle at University City, Guangzhou 510006, China
| | - Jun Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University , 132 East Circle at University City, Guangzhou 510006, China
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38
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Zhu W, Xu X, Tian J, Zhang L, Komatsu S. Proteomic Analysis of Lonicera japonica Thunb. Immature Flower Buds Using Combinatorial Peptide Ligand Libraries and Polyethylene Glycol Fractionation. J Proteome Res 2015; 15:166-81. [PMID: 26573373 DOI: 10.1021/acs.jproteome.5b00910] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Lonicera japonica Thunb. flower is a well-known medicinal plant that has been widely used for the treatment of human disease. To explore the molecular mechanisms underlying the biological activities of L. japonica immature flower buds, a gel-free/label-free proteomic technique was used in combination with combinatorial peptide ligand libraries (CPLL) and polyethylene glycol (PEG) fractionation for the enrichment of low-abundance proteins and removal of high-abundance proteins, respectively. A total of 177, 614, and 529 proteins were identified in crude protein extraction, CPLL fractions, and PEG fractions, respectively. Among the identified proteins, 283 and 239 proteins were specifically identified by the CPLL and PEG methods, respectively. In particular, proteins related to the oxidative pentose phosphate pathway, signaling, hormone metabolism, and transport were highly enriched by CPLL and PEG fractionation compared to crude protein extraction. A total of 28 secondary metabolism-related proteins and 25 metabolites were identified in L. japonica immature flower buds. To determine the specificity of the identified proteins and metabolites for L. japonica immature flower buds, Cerasus flower buds were used, which resulted in the abundance of hydroxymethylbutenyl 4-diphosphate synthase in L. japonica immature flower buds being 10-fold higher than that in Cerasus flower buds. These results suggest that proteins related to secondary metabolism might be responsible for the biological activities of L. japonica immature flower buds.
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Affiliation(s)
- Wei Zhu
- National Institute of Crop Science, National Agriculture and Food Research Organization , Tsukuba 305-8518, Japan.,College of Biomedical Engineering and Instrument Science, Zhejiang University , Hangzhou 310027, China
| | - Xiaobao Xu
- College of Biomedical Engineering and Instrument Science, Zhejiang University , Hangzhou 310027, China
| | - Jingkui Tian
- College of Biomedical Engineering and Instrument Science, Zhejiang University , Hangzhou 310027, China
| | - Lin Zhang
- College of Biomedical Engineering and Instrument Science, Zhejiang University , Hangzhou 310027, China
| | - Setsuko Komatsu
- National Institute of Crop Science, National Agriculture and Food Research Organization , Tsukuba 305-8518, Japan
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39
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Chen Q, Fan D, Wang G. Heteromeric Geranyl(geranyl) Diphosphate Synthase Is Involved in Monoterpene Biosynthesis in Arabidopsis Flowers. MOLECULAR PLANT 2015; 8:1434-7. [PMID: 25958235 DOI: 10.1016/j.molp.2015.05.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2015] [Revised: 04/06/2015] [Accepted: 05/03/2015] [Indexed: 05/24/2023]
Affiliation(s)
- Qingwen Chen
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100039, China
| | - Dongjie Fan
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
| | - Guodong Wang
- State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China.
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40
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Shinozaki Y, Hao S, Kojima M, Sakakibara H, Ozeki-Iida Y, Zheng Y, Fei Z, Zhong S, Giovannoni JJ, Rose JKC, Okabe Y, Heta Y, Ezura H, Ariizumi T. Ethylene suppresses tomato (Solanum lycopersicum) fruit set through modification of gibberellin metabolism. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2015; 83:237-51. [PMID: 25996898 DOI: 10.1111/tpj.12882] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 04/04/2015] [Accepted: 05/12/2015] [Indexed: 05/19/2023]
Abstract
Fruit set in angiosperms marks the transition from flowering to fruit production and a commitment to seed dispersal. Studies with Solanum lycopersicum (tomato) fruit have shown that pollination and subsequent fertilization induce the biosynthesis of several hormones, including auxin and gibberellins (GAs), which stimulate fruit set. Circumstantial evidence suggests that the gaseous hormone ethylene may also influence fruit set, but this has yet to be substantiated with molecular or mechanistic data. Here, we examined fruit set at the biochemical and genetic levels, using hormone and inhibitor treatments, and mutants that affect auxin or ethylene signaling. The expression of system-1 ethylene biosynthetic genes and the production of ethylene decreased during pollination-dependent fruit set in wild-type tomato and during pollination-independent fruit set in the auxin hypersensitive mutant iaa9-3. Blocking ethylene perception in emasculated flowers, using either the ethylene-insensitive Sletr1-1 mutation or 1-methylcyclopropene (1-MCP), resulted in elongated parthenocarpic fruit and increased cell expansion, whereas simultaneous treatment with the GA biosynthesis inhibitor paclobutrazol (PAC) inhibited parthenocarpy. Additionally, the application of the ethylene precursor 1-aminocyclopropane-1-carboxylic acid (ACC) to pollinated ovaries reduced fruit set. Furthermore, Sletr1-1 parthenocarpic fruits did not exhibit increased auxin accumulation, but rather had elevated levels of bioactive GAs, most likely reflecting an increase in transcripts encoding the GA-biosynthetic enzyme SlGA20ox3, as well as a reduction in the levels of transcripts encoding the GA-inactivating enzymes SlGA2ox4 and SlGA2ox5. Taken together, our results suggest that ethylene plays a role in tomato fruit set by suppressing GA metabolism.
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Affiliation(s)
- Yoshihito Shinozaki
- Graduate School of Environmental Sciences, Gene Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8572, Japan
| | - Shuhei Hao
- Graduate School of Environmental Sciences, Gene Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8572, Japan
| | - Mikiko Kojima
- RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro, Tsurumi, Yokohama, 230-0045, Japan
| | - Hitoshi Sakakibara
- RIKEN Center for Sustainable Resource Science, 1-7-22, Suehiro, Tsurumi, Yokohama, 230-0045, Japan
| | - Yuko Ozeki-Iida
- Graduate School of Environmental Sciences, Gene Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8572, Japan
| | - Yi Zheng
- Boyce Thompson Institute for Plant Research, Ithaca, NY, 14853, USA
| | - Zhangjun Fei
- Boyce Thompson Institute for Plant Research, Ithaca, NY, 14853, USA
| | - Silin Zhong
- Partner State Key Laboratory of Agrobiotechnology, School of Life Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - James J Giovannoni
- Boyce Thompson Institute for Plant Research, Ithaca, NY, 14853, USA
- U.S. Department of Agriculture/Agriculture Research Service, Robert W. Holley Centre for Agriculture and Health, Ithaca, NY, 14853, USA
| | - Jocelyn K C Rose
- Plant Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA
| | - Yoshihiro Okabe
- Graduate School of Environmental Sciences, Gene Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8572, Japan
| | - Yumi Heta
- Graduate School of Environmental Sciences, Gene Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8572, Japan
| | - Hiroshi Ezura
- Graduate School of Environmental Sciences, Gene Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8572, Japan
| | - Tohru Ariizumi
- Graduate School of Environmental Sciences, Gene Research Center, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8572, Japan
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Zhou J, Wang X, Kuang M, Wang L, Luo HB, Mo Y, Wu R. Protonation-Triggered Carbon-Chain Elongation in Geranyl Pyrophosphate Synthase (GPPS). ACS Catal 2015. [DOI: 10.1021/acscatal.5b00947] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jingwei Zhou
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P.R. China
| | - Xiaoming Wang
- Program in Public Health, College of Healthy Sciences, University of California—Irvine, Irvine, California 92697,United States
| | - Ming Kuang
- Institute of Chinese Medical Sciences, Guangdong Pharmaceutical University, Guangzhou 510006, P.R. China
| | - Laiyou Wang
- Institute of Chinese Medical Sciences, Guangdong Pharmaceutical University, Guangzhou 510006, P.R. China
| | - Hai-Bin Luo
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P.R. China
| | - Yirong Mo
- Department of Chemistry, Western Michigan University, Kalamazoo, Michigan 49008, United States
| | - Ruibo Wu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, P.R. China
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Tholl D. Biosynthesis and biological functions of terpenoids in plants. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2015; 148:63-106. [PMID: 25583224 DOI: 10.1007/10_2014_295] [Citation(s) in RCA: 249] [Impact Index Per Article: 27.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Terpenoids (isoprenoids) represent the largest and most diverse class of chemicals among the myriad compounds produced by plants. Plants employ terpenoid metabolites for a variety of basic functions in growth and development but use the majority of terpenoids for more specialized chemical interactions and protection in the abiotic and biotic environment. Traditionally, plant-based terpenoids have been used by humans in the food, pharmaceutical, and chemical industries, and more recently have been exploited in the development of biofuel products. Genomic resources and emerging tools in synthetic biology facilitate the metabolic engineering of high-value terpenoid products in plants and microbes. Moreover, the ecological importance of terpenoids has gained increased attention to develop strategies for sustainable pest control and abiotic stress protection. Together, these efforts require a continuous growth in knowledge of the complex metabolic and molecular regulatory networks in terpenoid biosynthesis. This chapter gives an overview and highlights recent advances in our understanding of the organization, regulation, and diversification of core and specialized terpenoid metabolic pathways, and addresses the most important functions of volatile and nonvolatile terpenoid specialized metabolites in plants.
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Affiliation(s)
- Dorothea Tholl
- Department of Biological Sciences, Virginia Tech, 409 Latham Hall, 24061, Blacksburg, VA, USA,
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Coman D, Altenhoff A, Zoller S, Gruissem W, Vranová E. Distinct evolutionary strategies in the GGPPS family from plants. FRONTIERS IN PLANT SCIENCE 2014; 5:230. [PMID: 24904625 PMCID: PMC4034038 DOI: 10.3389/fpls.2014.00230] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Accepted: 05/09/2014] [Indexed: 05/07/2023]
Abstract
Multiple geranylgeranyl diphosphate synthases (GGPPS) for biosynthesis of geranylgeranyl diphosphate (GGPP) exist in plants. GGPP is produced in the isoprenoid pathway and is a central precursor for various primary and specialized plant metabolites. Therefore, its biosynthesis is an essential regulatory point in the isoprenoid pathway. We selected 119 GGPPSs from 48 species representing all major plant lineages, based on stringent homology criteria. After the diversification of land plants, the number of GGPPS paralogs per species increases. Already in the moss Physcomitrella patens, GGPPS appears to be encoded by multiple paralogous genes. In gymnosperms, neofunctionalization of GGPPS may have enabled optimized biosynthesis of primary and specialized metabolites. Notably, lineage-specific expansion of GGPPS occurred in land plants. As a representative species we focused here on Arabidopsis thaliana, which retained the highest number of GGPPS paralogs (twelve) among the 48 species we considered in this study. Our results show that the A. thaliana GGPPS gene family is an example of evolution involving neo- and subfunctionalization as well as pseudogenization. We propose subfunctionalization as one of the main mechanisms allowing the maintenance of multiple GGPPS paralogs in A. thaliana genome. Accordingly, the changes in the expression patterns of the GGPPS paralogs occurring after gene duplication led to developmental and/or condition specific functional evolution.
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Affiliation(s)
- Diana Coman
- Department of Biology, ETH ZurichZurich, Switzerland
| | - Adrian Altenhoff
- Department of Computer Science, ETH ZurichZurich, Switzerland
- Swiss Institute of BioinformaticsZurich, Switzerland
| | - Stefan Zoller
- Department of Computer Science, ETH ZurichZurich, Switzerland
- Swiss Institute of BioinformaticsZurich, Switzerland
| | | | - Eva Vranová
- Department of Biology, ETH ZurichZurich, Switzerland
- Institute of Biology and Ecology, Pavol Jozef Šafárik UniversityKošice, Slovakia
- *Correspondence: Eva Vranová, Faculty of Science, Institute of Biology and Ecology, Pavol Jozef Šafárik University in Košice, Mánesova 23, Košice, 04154, Slovakia e-mail:
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Ruppel NJ, Kropp KN, Davis PA, Martin AE, Luesse DR, Hangarter RP. Mutations in GERANYLGERANYL DIPHOSPHATE SYNTHASE 1 affect chloroplast development in Arabidopsis thaliana (Brassicaceae). AMERICAN JOURNAL OF BOTANY 2013; 100:2074-84. [PMID: 24081146 DOI: 10.3732/ajb.1300124] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
PREMISE OF THE STUDY Within plastids, geranylgeranyl diphosphate synthase is a key enzyme in the isoprenoid biosynthetic pathway that catalyzes the formation of geranylgeranyl diphosphate, a precursor molecule to several biochemical pathways including those that lead into the biosynthesis of carotenoids and abscisic acid, prenyllipids such as the chlorophylls, and diterpenes such as gibberellic acid. • METHODS We have identified mutants in the GERANYLGERANYL DIPHOSPHATE SYNTHASE 1 (GGPS1) gene, which encodes the major plastid-localized enzyme geranylgeranyl diphosphate synthase in Arabidopsis thaliana. • KEY RESULTS Two T-DNA insertion mutant alleles (ggps1-2 and ggps1-3) were found to result in seedling-lethal albino and embryo-lethal phenotypes, respectively, indicating that GGPS1 is an essential gene. We also identified a temperature-sensitive leaf variegation mutant (ggps1-1) in A. thaliana that is caused by a point mutation. Total chlorophyll and carotenoid levels were reduced in ggps1-1 white tissues as compared with green tissues. Phenotypes typically associated with a reduction in gibberellic acid were not seen, suggesting that gibberellic acid biosynthesis is not noticeably altered in the mutant. In contrast to other variegated mutants, the ggps1-1 green sector photosynthetic rate was not elevated relative to wild-type tissues. Chloroplast development in green sectors of variegated leaves appeared normal, whereas cells in white sectors contained abnormal plastids with numerous electron translucent bodies and poorly developed internal membranes. • CONCLUSIONS Our results indicate that GGPS1 is a key gene in the chlorophyll biosynthetic pathway.
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Affiliation(s)
- Nicholas J Ruppel
- Indiana University, Department of Biology, 915 E 3rd Street, Bloomington, Indiana 47405 USA
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45
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Kulkarni R, Pandit S, Chidley H, Nagel R, Schmidt A, Gershenzon J, Pujari K, Giri A, Gupta V. Characterization of three novel isoprenyl diphosphate synthases from the terpenoid rich mango fruit. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2013; 71:121-31. [PMID: 23911730 DOI: 10.1016/j.plaphy.2013.07.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 07/11/2013] [Indexed: 05/18/2023]
Abstract
Mango (cv. Alphonso) is popular due to its highly attractive, terpenoid-rich flavor. Although Alphonso is clonally propagated, its fruit-flavor composition varies when plants are grown in different geo-climatic zones. Isoprenyl diphosphate synthases catalyze important branch-point reactions in terpenoid biosynthesis, providing precursors for common terpenoids such as volatile terpenes, sterols and carotenoids. Two geranyl diphosphate synthases and a farnesyl diphosphate synthase were isolated from Alphonso fruits, cloned for recombinant expression and found to produce the respective products. Although, one of the geranyl diphosphate synthases showed high sequence similarity to the geranylgeranyl diphosphate synthases, it did not exhibit geranylgeranyl diphosphate synthesizing activity. When modeled, this geranyl diphosphate synthase and farnesyl diphosphate synthase structures were found to be homologous with the reference structures, having all the catalytic side chains appropriately oriented. The optimum temperature for both the geranyl diphosphate synthases was 40 °C and that for farnesyl diphosphate synthase was 25 °C. This finding correlated well with the dominance of monoterpenes in comparison to sesquiterpenes in the fruits of Alphonso mango in which the mesocarp temperature is higher during ripening than development. The absence of activity of these enzymes with the divalent metal ion other than Mg(2+) indicated their adaptation to the Mg(2+) rich mesocarp. The typical expression pattern of these genes through the ripening stages of fruits from different cultivation localities depicting the highest transcript levels of these genes in the stage preceding the maximum terpene accumulation indicated the involvement of these genes in the biosynthesis of volatile terpenes.
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Affiliation(s)
- Ram Kulkarni
- Plant Molecular Biology Unit, Division of Biochemical Sciences, National Chemical Laboratory, Pune 411 008, India
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Rai A, Smita SS, Singh AK, Shanker K, Nagegowda DA. Heteromeric and Homomeric Geranyl Diphosphate Synthases from Catharanthus roseus and Their Role in Monoterpene Indole Alkaloid Biosynthesis. MOLECULAR PLANT 2013; 6:1531-49. [PMID: 0 DOI: 10.1093/mp/sst058] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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47
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Gutensohn M, Orlova I, Nguyen TTH, Davidovich-Rikanati R, Ferruzzi MG, Sitrit Y, Lewinsohn E, Pichersky E, Dudareva N. Cytosolic monoterpene biosynthesis is supported by plastid-generated geranyl diphosphate substrate in transgenic tomato fruits. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2013; 75:351-63. [PMID: 23607888 DOI: 10.1111/tpj.12212] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2013] [Revised: 04/11/2013] [Accepted: 04/16/2013] [Indexed: 05/20/2023]
Abstract
Geranyl diphosphate (GPP), the precursor of most monoterpenes, is synthesized in plastids from dimethylallyl diphosphate and isopentenyl diphosphate by GPP synthases (GPPSs). In heterodimeric GPPSs, a non-catalytic small subunit (GPPS-SSU) interacts with a catalytic large subunit, such as geranylgeranyl diphosphate synthase, and determines its product specificity. Here, snapdragon (Antirrhinum majus) GPPS-SSU was over-expressed in tomato fruits under the control of the fruit ripening-specific polygalacturonase promoter to divert the metabolic flux from carotenoid formation towards GPP and monoterpene biosynthesis. Transgenic tomato fruits produced monoterpenes, including geraniol, geranial, neral, citronellol and citronellal, while exhibiting reduced carotenoid content. Co-expression of the Ocimum basilicum geraniol synthase (GES) gene with snapdragon GPPS-SSU led to a more than threefold increase in monoterpene formation in tomato fruits relative to the parental GES line, indicating that the produced GPP can be used by plastidic monoterpene synthases. Co-expression of snapdragon GPPS-SSU with the O. basilicum α-zingiberene synthase (ZIS) gene encoding a cytosolic terpene synthase that has been shown to possess both sesqui- and monoterpene synthase activities resulted in increased levels of ZIS-derived monoterpene products compared to fruits expressing ZIS alone. These results suggest that re-direction of the metabolic flux towards GPP in plastids also increases the cytosolic pool of GPP available for monoterpene synthesis in this compartment via GPP export from plastids.
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Affiliation(s)
- Michael Gutensohn
- Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN 47907, USA
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48
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Beck G, Coman D, Herren E, Ruiz-Sola MA, Rodríguez-Concepción M, Gruissem W, Vranová E. Characterization of the GGPP synthase gene family in Arabidopsis thaliana. PLANT MOLECULAR BIOLOGY 2013; 82:393-416. [PMID: 23729351 DOI: 10.1007/s11103-013-0070-z] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Accepted: 05/05/2013] [Indexed: 05/06/2023]
Abstract
Geranylgeranyl diphosphate (GGPP) is a key precursor of various isoprenoids that have diverse functions in plant metabolism and development. The annotation of the Arabidopsis thaliana genome predicts 12 genes to encode geranylgeranyl diphosphate synthases (GGPPS). In this study we analyzed GGPPS activity as well as the subcellular localization and tissue-specific expression of the entire protein family in A. thaliana. GGPPS2 (At2g18620), GGPPS3 (At2g18640), GGPPS6 (At3g14530), GGPPS7 (At3g14550), GGPPS8 (At3g20160), GGPPS9 (At3g29430), GGPPS10 (At3g32040) and GGPPS11 (At4g36810) showed GGPPS activity in Escherichia coli, similar to activities reported earlier for GGPPS1 (At1g49530) and GGPPS4 (At2g23800) (Zhu et al. in Plant Cell Physiol 38(3):357-361, 1997a; Plant Mol Biol 35(3):331-341, b). GGPPS12 (At4g38460) did not produce GGPP in E. coli. Based on DNA sequence analysis we propose that GGPPS5 (At3g14510) is a pseudogene. GGPPS-GFP (green fluorescent protein) fusion proteins of the ten functional GGPP synthases localized to plastids, mitochondria and the endoplasmic reticulum, with the majority of the enzymes located in plastids. Gene expression analysis using quantitative real time-PCR, GGPPS promoter-GUS (β-glucuronidase) assays and publicly available microarray data revealed a differential spatio-temporal expression of GGPPS genes. The results suggest that plastids and mitochondria are key subcellular compartments for the synthesis of ubiquitous GGPP-derived isoprenoid species. GGPPS11 and GGPPS1 are the major isozymes responsible for their biosynthesis. All remaining paralogs, encoding six plastidial isozymes and two cytosolic isozymes, were expressed in specific tissues and/or at specific developmental stages, suggesting their role in developmentally regulated isoprenoid biosynthesis. Our results show that of the 12 predicted GGPPS encoded in the A. thaliana genome 10 are functional proteins that can synthesize GGPP. Their specific subcellular location and differential expression pattern suggest subfunctionalization in providing GGPP to specific tissues, developmental stages, or metabolic pathways.
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Affiliation(s)
- Gilles Beck
- Department of Biology, Plant Biotechnology, ETH Zurich, Zurich, Switzerland.
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Li J, Sima W, Ouyang B, Wang T, Ziaf K, Luo Z, Liu L, Li H, Chen M, Huang Y, Feng Y, Hao Y, Ye Z. Tomato SlDREB gene restricts leaf expansion and internode elongation by downregulating key genes for gibberellin biosynthesis. JOURNAL OF EXPERIMENTAL BOTANY 2012; 63:6407-20. [PMID: 23077200 PMCID: PMC3504492 DOI: 10.1093/jxb/ers295] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Plants have evolved and adapted to different environments. Dwarfism is an adaptive trait of plants that helps them avoid high-energy costs under unfavourable conditions. The role of gibberellin (GA) in plant development has been well established. Several plant dehydration-responsive element-binding proteins (DREBs) have been identified and reported to be induced under abiotic and biotic stress conditions. A tomato DREB gene named SlDREB, which is a transcription factor and was cloned from cultivated tomato M82, was found to play a negative role in tomato plant architecture and enhances drought tolerance. Tissue expression profiles indicated that SlDREB was expressed mainly in the stem and leaf and could be induced by abscisic acid (ABA) but suppressed by GA and ethylene. SlDREB altered plant morphology by restricting leaf expansion and internode elongation when overexpressed, and the resulting dwarfism of tomato plants could be recovered by application of exogenous gibberellic acid (GA(3)). Transcriptional analysis of transgenic plants revealed that overexpression of SlDREB caused the dwarf phenotype by downregulating key genes involved in GA biosynthesis such as ent-copalyl diphosphate synthase (SlCPS) and GA 20-oxidases (SlGA20ox1, -2, and -4), thereby decreasing endogenous GA levels in transgenic plants. A yeast activity assay demonstrated that SlDREB specifically bound to dehydration-responsive element/C-repeat (DRE/CRT) elements of the SlCPS promoter region. Taken together, these data demonstrated that SlDREB can downregulate the expression of key genes required for GA biosynthesis and that it acts as a positive regulator in drought stress responses by restricting leaf expansion and internode elongation.
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Affiliation(s)
- Jinhua Li
- Key Laboratory of Horticultural Plant Biology (MOE), Huazhong Agricultural University, Wuhan 430070, PR China
| | - Wei Sima
- Key Laboratory of Horticultural Plant Biology (MOE), Huazhong Agricultural University, Wuhan 430070, PR China
| | - Bo Ouyang
- Key Laboratory of Horticultural Plant Biology (MOE), Huazhong Agricultural University, Wuhan 430070, PR China
| | - Taotao Wang
- Key Laboratory of Horticultural Plant Biology (MOE), Huazhong Agricultural University, Wuhan 430070, PR China
| | - Khurram Ziaf
- Key Laboratory of Horticultural Plant Biology (MOE), Huazhong Agricultural University, Wuhan 430070, PR China
| | - Zhidan Luo
- Key Laboratory of Horticultural Plant Biology (MOE), Huazhong Agricultural University, Wuhan 430070, PR China
| | - Lifeng Liu
- Key Laboratory of Horticultural Plant Biology (MOE), Huazhong Agricultural University, Wuhan 430070, PR China
| | - Hanxia Li
- Key Laboratory of Horticultural Plant Biology (MOE), Huazhong Agricultural University, Wuhan 430070, PR China
| | - Mingluan Chen
- 2 Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), Department of Chemistry, Wuhan University, Wuhan 430072, PR China
| | - Yunqing Huang
- 2 Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), Department of Chemistry, Wuhan University, Wuhan 430072, PR China
| | - Yuqi Feng
- 2 Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), Department of Chemistry, Wuhan University, Wuhan 430072, PR China
| | - Yanhong Hao
- 2 Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), Department of Chemistry, Wuhan University, Wuhan 430072, PR China
| | - Zhibiao Ye
- Key Laboratory of Horticultural Plant Biology (MOE), Huazhong Agricultural University, Wuhan 430070, PR China
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Sahu PP, Puranik S, Khan M, Prasad M. Recent advances in tomato functional genomics: utilization of VIGS. PROTOPLASMA 2012; 249:1017-27. [PMID: 22669349 DOI: 10.1007/s00709-012-0421-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Accepted: 05/17/2012] [Indexed: 05/07/2023]
Abstract
Tomato unquestionably occupies a significant position in world vegetable production owing to its world-wide consumption. The tomato genome sequencing efforts being recently concluded, it becomes more imperative to recognize important functional genes from this treasure of generated information for improving tomato yield. While much progress has been made in conventional tomato breeding, post-transcriptional gene silencing (PTGS) offers an alternative approach for advancement of tomato functional genomics. In particular, virus-induced gene silencing (VIGS) is increasingly being used as rapid, reliable, and lucrative screening strategy to elucidate gene function. In this review, we focus on the recent advancement made through exploiting the potential of this technique for manipulating different agronomically important traits in tomato by discussing several case studies.
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Affiliation(s)
- Pranav Pankaj Sahu
- National Institute of Plant Genome Research (NIPGR), Aruna Asaf Ali Marg, JNU Campus, New Delhi, 110067, India
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