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Iwasa Y, Hayashi R, Satake A. Optimal seasonal schedule for the production of isoprene, a highly volatile biogenic VOC. Sci Rep 2024; 14:12311. [PMID: 38811652 PMCID: PMC11137007 DOI: 10.1038/s41598-024-62975-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 05/23/2024] [Indexed: 05/31/2024] Open
Abstract
The leaves of many trees emit volatile organic compounds (abbreviated as BVOCs), which protect them from various damages, such as herbivory, pathogens, and heat stress. For example, isoprene is highly volatile and is known to enhance the resistance to heat stress. In this study, we analyze the optimal seasonal schedule for producing isoprene in leaves to mitigate damage. We assume that photosynthetic rate, heat stress, and the stress-suppressing effect of isoprene may vary throughout the season. We seek the seasonal schedule of isoprene production that maximizes the total net photosynthesis using Pontryagin's maximum principle. The isoprene production rate is determined by the changing balance between the cost and benefit of enhanced leaf protection over time. If heat stress peaks in midsummer, isoprene production can reach its highest levels during the summer. However, if a large portion of leaves is lost due to heat stress in a short period, the optimal schedule involves peaking isoprene production after the peak of heat stress. Both high photosynthetic rate and high isoprene volatility in midsummer make the peak of isoprene production in spring. These results can be clearly understood by distinguishing immediate impacts and the impacts of future expectations.
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Affiliation(s)
- Yoh Iwasa
- Department of Biology, Faculty of Science, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka, 819-0395, Japan.
| | - Rena Hayashi
- Department of Biology, Faculty of Science, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka, 819-0395, Japan
| | - Akiko Satake
- Department of Biology, Faculty of Science, Kyushu University, 744 Motooka, Nishi-Ku, Fukuoka, 819-0395, Japan
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2
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Wang Q, Wang X, Huang L, Cheng Y, Ren L, Yang H, Zhou C, Wang X, He J. Promoter characterization of a citrus linalool synthase gene mediating interspecific variation in resistance to a bacterial pathogen. BMC PLANT BIOLOGY 2023; 23:405. [PMID: 37620808 PMCID: PMC10463377 DOI: 10.1186/s12870-023-04413-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 08/14/2023] [Indexed: 08/26/2023]
Abstract
BACKGROUND Terpenoids play essential roles in plant defense against biotic stresses. In Citrus species, the monoterpene linalool mediates resistance against citrus canker disease caused by the gram-negative bacteria Xanthomonas citri subsp. citri (Xcc). Previous work had associated linalool contents with resistance; here we characterize transcriptional responses of linalool synthase genes. RESULTS Leaf linalool contents are highly variable among different Citrus species. "Dongfang" tangerine (Citrus reticulata), a species with high linalool levels was more resistant to Xcc than "Shatian" pummelo (C. grandis) which accumulates only small amounts of linalool. The coding sequences of the major leaf-expressed linalool synthase gene (STS4) are highly conserved, while transcript levels differ between the two Citrus species. To understand this apparent differential transcription, we isolated the promoters of STS4 from the two species, fused them to a GUS reporter and expressed them in Arabidopsis. This reporter system revealed that the two promoters have different constitutive activities, mainly in trichomes. Interestingly, both linalool contents and STS4 transcript levels are insensitive to Xcc infestation in citrus plants, but in these transgenic Arabidopsis plants, the promoters are activated by challenge of a bacterial pathogen Pseudomonas syringae, as well as wounding and external jasmonic acid treatment. CONCLUSIONS Our study reveals variation in linalool and resistance to Xcc in citrus plants, which may be mediated by different promoter activities of a terpene synthase gene in different Citrus species.
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Affiliation(s)
- Qiying Wang
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China
| | - Xiaochun Wang
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China
| | - Linhua Huang
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China
| | - Yujiao Cheng
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China
| | - Li Ren
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China
| | - Huayu Yang
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China
| | - Changyong Zhou
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China
| | - Xuefeng Wang
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China.
| | - Jun He
- National Citrus Engineering Research Center, Citrus Research Institute, Southwest University, Chongqing, 400712, China.
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3
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Wang H, Xiao H, Wu Y, Zhou F, Hua C, Ba L, Shamim S, Zhang W. Characterization of volatile compounds and microstructure in different tissues of ‘Eureka’ lemon ( Citrus limon). INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2022. [DOI: 10.1080/10942912.2022.2046600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Haiou Wang
- School of Food Science, Nanjing Xiaozhuang University, Nanjing, PR China
- Key Laboratory of Modern Agricultural Equipment, Ministry of Agriculture and Rural Affairs, Nanjing Research Institute for Agricultural Mechanization, Nanjing, PR China
- Jiangsu Provincial Key Construction Laboratory of Special Biomass Waste Resource Utilization, School of Food Science, Nanjing Xiaozhuang University, Nanjing, PR China
| | - HongWei Xiao
- College of Engineering, China Agricultural University, Beijing, PR China
| | - Yulong Wu
- School of Food Science, Nanjing Xiaozhuang University, Nanjing, PR China
- Jiangsu Provincial Key Construction Laboratory of Special Biomass Waste Resource Utilization, School of Food Science, Nanjing Xiaozhuang University, Nanjing, PR China
| | - Feng Zhou
- School of Food Science, Nanjing Xiaozhuang University, Nanjing, PR China
- Jiangsu Provincial Key Construction Laboratory of Special Biomass Waste Resource Utilization, School of Food Science, Nanjing Xiaozhuang University, Nanjing, PR China
| | - Chun Hua
- School of Food Science, Nanjing Xiaozhuang University, Nanjing, PR China
- Jiangsu Provincial Key Construction Laboratory of Special Biomass Waste Resource Utilization, School of Food Science, Nanjing Xiaozhuang University, Nanjing, PR China
| | - Long Ba
- State Laboratory of Bioelectronics, School of Biomedical Engineering and Department of Physics, Southeast University, Nanjing, PR China
| | - Sara Shamim
- State Laboratory of Bioelectronics, School of Biomedical Engineering and Department of Physics, Southeast University, Nanjing, PR China
| | - Wei Zhang
- School of Food Science, Nanjing Xiaozhuang University, Nanjing, PR China
- Jiangsu Provincial Key Construction Laboratory of Special Biomass Waste Resource Utilization, School of Food Science, Nanjing Xiaozhuang University, Nanjing, PR China
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4
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Floral secondary metabolites in context of biotic and abiotic stress factors. CHEMOECOLOGY 2021. [DOI: 10.1007/s00049-021-00366-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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5
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Taxonomic Insights and Its Type Cyclization Correlation of Volatile Sesquiterpenes in Vitex Species and Potential Source Insecticidal Compounds: A Review. Molecules 2021; 26:molecules26216405. [PMID: 34770814 PMCID: PMC8587464 DOI: 10.3390/molecules26216405] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 10/21/2021] [Accepted: 10/22/2021] [Indexed: 11/17/2022] Open
Abstract
Sesquiterpenes (SS) are secondary metabolites formed by the bonding of 3 isoprene (C5) units. They play an important role in the defense and signaling of plants to adapt to the environment, face stress, and communicate with the outside world, and their evolutionary history is closely related to their physiological functions. This review considers their presence and extensively summarizes the 156 sesquiterpenes identified in Vitextaxa, emphasizing those with higher concentrations and frequency among species and correlating with the insecticidal activities and defensive responses reported in the literature. In addition, we classify the SS based on their chemical structures and addresses cyclization in biosynthetic origin. Most relevant sesquiterpenes of the Vitex genus are derived from the germacredienyl cation mainly via bicyclogermacrene and germacrene C, giving rise to aromadrendanes, a skeleton with the highest number of representative compounds in this genus, and 6,9-guaiadiene, respectively, indicating the production of 1.10-cyclizing sesquiterpene synthases. These enzymes can play an important role in the chemosystematics of the genus from their corresponding routes and cyclizations, constituting a new approach to chemotaxonomy. In conclusion, this review is a compilation of detailed information on the profile of sesquiterpene in the Vitex genus and, thus, points to new unexplored horizons for future research.
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Gong Z, Luo Y, Zhang W, Jian W, Zhang L, Gao X, Hu X, Yuan Y, Wu M, Xu X, Zheng X, Wu G, Li Z, Li Z, Deng W. A SlMYB75-centred transcriptional cascade regulates trichome formation and sesquiterpene accumulation in tomato. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:3806-3820. [PMID: 33619530 DOI: 10.1093/jxb/erab086] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 02/19/2021] [Indexed: 06/12/2023]
Abstract
Tomato trichomes act as a mechanical and chemical barrier against pests. An R2R3 MYB transcription factor gene, SlMYB75, is highly expressed in type II, V, and VI trichomes. SlMYB75 protein is located in the nucleus and possesses transcriptional activation activity. Down-regulation of SlMYB75 increased the formation of type II, V, and VI trichomes, accumulation of δ-elemene, β-caryophyllene, and α-humulene in glandular trichomes, and tolerance to spider mites in tomato. In contrast, overexpression of SlMYB75 inhibited trichome formation and sesquiterpene accumulation, and increased plant sensitivity to spider mites. RNA-Seq analyses of the SlMYB75 RNAi line indicated massive perturbation of the transcriptome, with a significant impact on several classes of transcription factors. Expression of the MYB genes SlMYB52 and SlTHM1 was strongly reduced in the RNAi line and increased in the SlMYB75-overexpressing line. SlMYB75 protein interacted with SlMYB52 and SlTHM1 and activated their expression. SlMYB75 directly targeted the promoter of the cyclin gene SlCycB2, increasing its activity. The auxin response factor SlARF4 directly targeted the promoter of SlMYB75 and inhibited its expression. SlMYB75 also bound to the promoters of the terpene synthase genes SlTPS12, SlTPS31, and SlTPS35, inhibiting their transcription. Our findings indicate that SlMYB75 perturbation affects several transcriptional circuits, resulting in altered trichome density and metabolic content.
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Affiliation(s)
- Zehao Gong
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, China
| | - Yingqing Luo
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, China
| | - Wenfa Zhang
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, China
| | - Wei Jian
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, China
| | - Lu Zhang
- Department of Horticulture and Landscape Architecture, Oklahoma State University, Stillwater, OK, USA
| | - Xueli Gao
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, China
| | - Xiaowei Hu
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, China
| | - Yujin Yuan
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, China
| | - Mengbo Wu
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, China
| | - Xin Xu
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, China
| | - Xianzhe Zheng
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, China
| | - Guanle Wu
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, China
| | - Zhengguo Li
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, China
| | - Zhi Li
- Horticulture Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu, China
| | - Wei Deng
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing, China
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Li Z, Howell K, Fang Z, Zhang P. Sesquiterpenes in grapes and wines: Occurrence, biosynthesis, functionality, and influence of winemaking processes. Compr Rev Food Sci Food Saf 2019; 19:247-281. [PMID: 33319521 DOI: 10.1111/1541-4337.12516] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 11/09/2019] [Accepted: 11/13/2019] [Indexed: 12/17/2022]
Abstract
Grapes are an important global horticultural product, and are mainly used for winemaking. Typically, grapes and wines are rich in various phytochemicals, including phenolics, terpenes, pyrazines, and benzenoids, with different compounds responsible for different nutritional and sensory properties. Among these compounds, sesquiterpenes, a subcategory of the terpenes, are attracting increasing interest as they affect aroma and have potential health benefits. The characteristics of sesquiterpenes in grapes and wines in terms of classification, biosynthesis pathway, and active functions have not been extensively reviewed. This paper summarizes 97 different sesquiterpenes reported in grapes and wines and reviews their biosynthesis pathways and relevant bio-regulation mechanisms. This review further discusses the functionalities of these sesquiterpenes including their aroma contribution to grapes and wines and potential health benefits, as well as how winemaking processes affect sesquiterpene concentrations.
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Affiliation(s)
- Zizhan Li
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia
| | - Kate Howell
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia
| | - Zhongxiang Fang
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia
| | - Pangzhen Zhang
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, Victoria, Australia
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8
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Fujita Y, Koeduka T, Aida M, Suzuki H, Iijima Y, Matsui K. Biosynthesis of volatile terpenes that accumulate in the secretory cavities of young leaves of Japanese pepper ( Zanthoxylum piperitum): Isolation and functional characterization of monoterpene and sesquiterpene synthase genes. PLANT BIOTECHNOLOGY (TOKYO, JAPAN) 2017; 34:17-28. [PMID: 31275004 PMCID: PMC6543703 DOI: 10.5511/plantbiotechnology.16.1231a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Accepted: 12/31/2016] [Indexed: 05/27/2023]
Abstract
Volatile terpenes are ones of the characteristic aromas of Japanese pepper (Zanthoxylum piperitum). It has been hypothesized that the specialized epithelial cells surrounding the secretory cavities of Japanese pepper fruits and leaves are responsible for the synthesis of monoterpenes and sesquiterpenes, which are generally produced by terpene synthases (TPSs); however, direct evidence for the formation of terpenes in Japanese pepper remains elusive. Here we report that monoterpenes and sesquiterpenes accumulate inside the secretory cavities of Japanese pepper leaves, but not in other parts of leaf tissues that do not include secretory cavities. We have obtained cDNAs for ZpTPS1 and ZpTPS2, which are responsible for biosynthesis of the sesquiterpenes β-caryophyllene and germacrene D, respectively, in Japanese pepper. In addition, we also identified a cDNA for the monoterpene synthase ZpTPS3. Expression of ZpTPS3 in Escherichia coli in addition to Agrobacterium-mediated transient ZpTPS3 expression in Nicotiana benthamiana demonstrated the catalytic activity of ZpTPS3 to form β-phellandrene as the major product. In situ hybridization in Japanese pepper leaf tissue revealed that ZpTPS3 transcript specifically accumulated in the epithelial cells surrounding secretory cavities. Expression of ZpTPS3 in epithelial cells was only detectable during early stages of cavity development, whereas the formation of volatile terpenes occurred at a constant rate throughout the expansion of secretory cavities. Our studies have improved the understanding of the currently uncharacterized processes controlling volatile terpene biosynthesis in Japanese pepper leaves.
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Affiliation(s)
- Yoshiyuki Fujita
- Department of Biological Chemistry, Faculty of Agriculture and Division of Agricultural Sciences, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Takao Koeduka
- Department of Biological Chemistry, Faculty of Agriculture and Division of Agricultural Sciences, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi 753-8515, Japan
| | - Mitsuhiro Aida
- Graduate School of Biological Sciences, Nara Institute of Science and Technology, Nara 630-0192, Japan
| | - Hideyuki Suzuki
- Department of Research and Development, Kazusa DNA Research Institute, Chiba 292-0818, Japan
| | - Yoko Iijima
- Department of Nutrition and Life Science, Kanagawa Institute of Technology, Kanagawa 243-0292, Japan
| | - Kenji Matsui
- Department of Biological Chemistry, Faculty of Agriculture and Division of Agricultural Sciences, Graduate School of Sciences and Technology for Innovation, Yamaguchi University, Yamaguchi 753-8515, Japan
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9
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Alquézar B, Rodríguez A, de la Peña M, Peña L. Genomic Analysis of Terpene Synthase Family and Functional Characterization of Seven Sesquiterpene Synthases from Citrus sinensis. FRONTIERS IN PLANT SCIENCE 2017; 8:1481. [PMID: 28883829 PMCID: PMC5573811 DOI: 10.3389/fpls.2017.01481] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 08/09/2017] [Indexed: 05/17/2023]
Abstract
Citrus aroma and flavor, chief traits of fruit quality, are derived from their high content in essential oils of most plant tissues, including leaves, stems, flowers, and fruits. Accumulated in secretory cavities, most components of these oils are volatile terpenes. They contribute to defense against herbivores and pathogens, and perhaps also protect tissues against abiotic stress. In spite of their importance, our understanding of the physiological, biochemical, and genetic regulation of citrus terpene volatiles is still limited. The availability of the sweet orange (Citrus sinensis L. Osbeck) genome sequence allowed us to characterize for the first time the terpene synthase (TPS) family in a citrus type. CsTPS is one of the largest angiosperm TPS families characterized so far, formed by 95 loci from which just 55 encode for putative functional TPSs. All TPS angiosperm families, TPS-a, TPS-b, TPS-c, TPS-e/f, and TPS-g were represented in the sweet orange genome, with 28, 18, 2, 2, and 5 putative full length genes each. Additionally, sweet orange β-farnesene synthase, (Z)-β-cubebene/α-copaene synthase, two β-caryophyllene synthases, and three multiproduct enzymes yielding β-cadinene/α-copaene, β-elemene, and β-cadinene/ledene/allo-aromandendrene as major products were identified, and functionally characterized via in vivo recombinant Escherichia coli assays.
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Affiliation(s)
- Berta Alquézar
- Laboratório de Biotecnologia Vegetal, Pesquisa y Desenvolvimento, Fundo de Defesa da CitriculturaAraraquara, Brazil
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas and Universidad Politécnica de ValenciaValencia, Spain
| | - Ana Rodríguez
- Laboratório de Biotecnologia Vegetal, Pesquisa y Desenvolvimento, Fundo de Defesa da CitriculturaAraraquara, Brazil
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas and Universidad Politécnica de ValenciaValencia, Spain
| | - Marcos de la Peña
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas and Universidad Politécnica de ValenciaValencia, Spain
| | - Leandro Peña
- Laboratório de Biotecnologia Vegetal, Pesquisa y Desenvolvimento, Fundo de Defesa da CitriculturaAraraquara, Brazil
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas and Universidad Politécnica de ValenciaValencia, Spain
- *Correspondence: Leandro Peña
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Yoshitomi K, Taniguchi S, Tanaka K, Uji Y, Akimitsu K, Gomi K. Rice terpene synthase 24 (OsTPS24) encodes a jasmonate-responsive monoterpene synthase that produces an antibacterial γ-terpinene against rice pathogen. JOURNAL OF PLANT PHYSIOLOGY 2016; 191:120-6. [PMID: 26771167 DOI: 10.1016/j.jplph.2015.12.008] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 12/21/2015] [Accepted: 12/21/2015] [Indexed: 05/03/2023]
Abstract
Rice is one of the most important crops worldwide and is widely used as a model plant for molecular studies of monocotyledonous species. The plant hormone jasmonic acid (JA) is involved in rice-pathogen interactions. In addition, volatile compounds, including terpenes, whose production is induced by JA, are known to be involved in the rice defense system. In this study, we analyzed the JA-induced terpene synthase OsTPS24 in rice. We found that OsTPS24 was localized in chloroplasts and produced a monoterpene, γ-terpinene. The amount of γ-terpinene increased after JA treatment. γ-Terpinene had significant antibacterial activity against Xanthomonas oryzae pv. oryzae (Xoo); however, it did not show significant antifungal activity against Magnaporthe oryzae. The antibacterial activity of the γ-terpinene against Xoo was caused by damage to bacterial cell membranes. These results suggest that γ-terpinene plays an important role in JA-induced resistance against Xoo, and that it functions as an antibacterial compound in rice.
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Affiliation(s)
- Kayo Yoshitomi
- Plant Genome and Resource Research Center, Faculty of Agriculture, Kagawa University, Miki, Kagawa 761-0795, Japan
| | - Shiduku Taniguchi
- Plant Genome and Resource Research Center, Faculty of Agriculture, Kagawa University, Miki, Kagawa 761-0795, Japan
| | - Keiichiro Tanaka
- Plant Genome and Resource Research Center, Faculty of Agriculture, Kagawa University, Miki, Kagawa 761-0795, Japan
| | - Yuya Uji
- Plant Genome and Resource Research Center, Faculty of Agriculture, Kagawa University, Miki, Kagawa 761-0795, Japan
| | - Kazuya Akimitsu
- Plant Genome and Resource Research Center, Faculty of Agriculture, Kagawa University, Miki, Kagawa 761-0795, Japan
| | - Kenji Gomi
- Plant Genome and Resource Research Center, Faculty of Agriculture, Kagawa University, Miki, Kagawa 761-0795, Japan.
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Omura M, Shimada T. Citrus breeding, genetics and genomics in Japan. BREEDING SCIENCE 2016; 66:3-17. [PMID: 27069387 PMCID: PMC4780800 DOI: 10.1270/jsbbs.66.3] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Accepted: 12/09/2015] [Indexed: 05/03/2023]
Abstract
Citrus is one of the most cultivated fruits in the world, and satsuma mandarin (Citrus unshiu Marc.) is a major cultivated citrus in Japan. Many excellent cultivars derived from satsuma mandarin have been released through the improvement of mandarins using a conventional breeding method. The citrus breeding program is a lengthy process owing to the long juvenility, and it is predicted that marker-assisted selection (MAS) will overcome the obstacle and improve the efficiency of conventional breeding methods. To promote citrus molecular breeding in Japan, a genetic mapping was initiated in 1987, and the experimental tools and resources necessary for citrus functional genomics have been developed in relation to the physiological analysis of satsuma mandarin. In this paper, we review the progress of citrus breeding and genome researches in Japan and report the studies on genetic mapping, expression sequence tag cataloguing, and molecular characterization of breeding characteristics, mainly in terms of the metabolism of bio-functional substances as well as factors relating to, for example, fruit quality, disease resistance, polyembryony, and flowering.
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Affiliation(s)
- Mitsuo Omura
- Faculty of Agriculture, Shizuoka University,
836 Ohya, Suruga, Shizuoka, Shizuoka 422-8529,
Japan
| | - Takehiko Shimada
- Citrus Research Division, NARO Institute of Fruit Tree Science,
485-6 Okitsunakacho, Shimizu, Shizuoka, Shizuoka 424-0292,
Japan
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