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Tripathi A, Chauhan N, Mukhopadhyay P. Recent advances in understanding the regulation of plant secondary metabolite biosynthesis by ethylene-mediated pathways. PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS : AN INTERNATIONAL JOURNAL OF FUNCTIONAL PLANT BIOLOGY 2024; 30:543-557. [PMID: 38737326 PMCID: PMC11087406 DOI: 10.1007/s12298-024-01441-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 03/12/2024] [Accepted: 03/19/2024] [Indexed: 05/14/2024]
Abstract
Plants produce a large repertoire of secondary metabolites. The pathways that lead to the biosynthesis of these metabolites are majorly conserved in the plant kingdom. However, a significant portion of these metabolites are specific to certain groups or species due to variations in the downstream pathways and evolution of the enzymes. These metabolites show spatiotemporal variation in their accumulation and are of great importance to plants due to their role in development, stress response and survival. A large number of these metabolites are in huge industrial demand due to their potential use as therapeutics, aromatics and more. Ethylene, as a plant hormone is long known, and its biosynthetic process, signaling mechanism and effects on development and response pathways have been characterized in many plants. Through exogenous treatments, ethylene and its inhibitors have been used to manipulate the production of various secondary metabolites. However, the research done on a limited number of plants in the last few years has only started to uncover the mechanisms through which ethylene regulates the accumulation of these metabolites. Often in association with other hormones, ethylene participates in fine-tuning the biosynthesis of the secondary metabolites, and brings specificity in the regulation depending on the plant, organ, tissue type and the prevailing conditions. This review summarizes the related studies, interprets the outcomes, and identifies the gaps that will help to breed better varieties of the related crops and produce high-value secondary metabolites for human benefits.
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Affiliation(s)
- Alka Tripathi
- Plant Biotechnology division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh 226015 India
| | - Nisha Chauhan
- Plant Biotechnology division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh 226015 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad, Uttar Pradesh 201002 India
| | - Pradipto Mukhopadhyay
- Plant Biotechnology division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow, Uttar Pradesh 226015 India
- Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad, Uttar Pradesh 201002 India
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Yadav P, Sharma K, Tiwari N, Saxena G, Asif MH, Singh S, Kumar M. Comprehensive transcriptome analyses of Fusarium-infected root xylem tissues to decipher genes involved in chickpea wilt resistance. 3 Biotech 2023; 13:390. [PMID: 37942053 PMCID: PMC10630269 DOI: 10.1007/s13205-023-03803-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 10/03/2023] [Indexed: 11/10/2023] Open
Abstract
Fusarium wilt is the most destructive soil-borne disease that poses a major threat to chickpea production. To comprehensively understand the interaction between chickpea and Fusarium oxysporum, the xylem-specific transcriptome analysis of wilt-resistant (WR315) and wilt-susceptible (JG62) genotypes at an early timepoint (4DPI) was investigated. Differential expression analysis showed that 1368 and 348 DEGs responded to pathogen infection in resistant and susceptible genotypes, respectively. Both genotypes showed transcriptional reprogramming in response to Foc2, but the responses in WR315 were more severe than in JG62. Results of the KEGG pathway analysis revealed that most of the DEGS in both genotypes with enrichment in metabolic pathways, secondary metabolite biosynthesis, plant hormone signal transduction, and carbon metabolism. Genes associated with defense-related metabolites synthesis such as thaumatin-like protein 1b, cysteine-rich receptor-like protein kinases, MLP-like proteins, polygalacturonase inhibitor 2-like, ethylene-responsive transcription factors, glycine-rich cell wall structural protein-like, beta-galactosidase-like, subtilisin-like protease, thioredoxin-like protein, chitin elicitor receptor kinase-like, proline transporter-like, non-specific lipid transfer protein and sugar transporter were mostly up-regulated in resistant as compared to susceptible genotypes. The results of this study provide disease resistance genes, which would be helpful in understanding the Foc resistance mechanism in chickpea. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-023-03803-9.
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Affiliation(s)
- Pooja Yadav
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
| | - Kritika Sharma
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
| | - Nikita Tiwari
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
| | - Garima Saxena
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
| | - Mehar H. Asif
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
| | - Swati Singh
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
| | - Manoj Kumar
- CSIR-National Botanical Research Institute, Rana Pratap Marg, Lucknow, 226001 India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002 India
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Yin Y, Liu C, Yang Z, Fang W. Ethephon promotes isoflavone accumulation in germinating soybeans by its acceleration of isoflavone biosynthetic pathway. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107805. [PMID: 37321039 DOI: 10.1016/j.plaphy.2023.107805] [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: 04/26/2023] [Revised: 05/20/2023] [Accepted: 05/29/2023] [Indexed: 06/17/2023]
Abstract
Soybeans have medicinal value and are an oil crop with medicinal and food properties. The present work investigated two aspects of isoflavone accumulation in soybean. First, germination conditions for exogenous-ethephon-mediated accumulation of isoflavone were optimised through response surface methodology. Second, various influences of ethephon on the growth of germinating soybeans and isoflavone metabolism were investigated. The findings of the research led to the conclusion that exogenous ethephon treatment effectively facilitated the enrichment of isoflavones in soybeans during germination. Optimal germination conditions were obtained through a response surface optimization test, which yielded the following criteria: a germination time of 4.2 d, an ethephon concentration of 102.6 μM, and a germination temperature of 30.2 °C. The maximum isoflavone content was 544.53 μg/sprout FW. Relative to the control, the addition of ethephon significantly inhibited sprout growth. Exogenous ethephon treatment led to the phenomenon that peroxidase, superoxide dismutase, and catalase activities and their gene expression increased significantly in germinating soybeans. Meanwhile, the expression of genes related to ethylene synthetase increase under the effect of ethephon promoting ethylene synthesis. Ethylene multiplied the total flavonoid content of soybean sprouts relying on the increase in activity and gene expression of crucial isoflavone biosynthesis-related enzymes (phenylalanine ammonia-lyase and 4-coumarate coenzyme A ligase) during germination.
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Affiliation(s)
- Yongqi Yin
- School of Food Science and Engineering, Yangzhou University, Jiangsu, 225127, China
| | - Chen Liu
- School of Food Science and Engineering, Yangzhou University, Jiangsu, 225127, China
| | - Zhengfei Yang
- School of Food Science and Engineering, Yangzhou University, Jiangsu, 225127, China
| | - Weiming Fang
- School of Food Science and Engineering, Yangzhou University, Jiangsu, 225127, China.
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Szukiewicz D. Insight into the Potential Mechanisms of Endocrine Disruption by Dietary Phytoestrogens in the Context of the Etiopathogenesis of Endometriosis. Int J Mol Sci 2023; 24:12195. [PMID: 37569571 PMCID: PMC10418522 DOI: 10.3390/ijms241512195] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/25/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
Phytoestrogens (PEs) are estrogen-like nonsteroidal compounds derived from plants (e.g., nuts, seeds, fruits, and vegetables) and fungi that are structurally similar to 17β-estradiol. PEs bind to all types of estrogen receptors, including ERα and ERβ receptors, nuclear receptors, and a membrane-bound estrogen receptor known as the G protein-coupled estrogen receptor (GPER). As endocrine-disrupting chemicals (EDCs) with pro- or antiestrogenic properties, PEs can potentially disrupt the hormonal regulation of homeostasis, resulting in developmental and reproductive abnormalities. However, a lack of PEs in the diet does not result in the development of deficiency symptoms. To properly assess the benefits and risks associated with the use of a PE-rich diet, it is necessary to distinguish between endocrine disruption (endocrine-mediated adverse effects) and nonspecific effects on the endocrine system. Endometriosis is an estrogen-dependent disease of unknown etiopathogenesis, in which tissue similar to the lining of the uterus (the endometrium) grows outside of the uterus with subsequent complications being manifested as a result of local inflammatory reactions. Endometriosis affects 10-15% of women of reproductive age and is associated with chronic pelvic pain, dysmenorrhea, dyspareunia, and infertility. In this review, the endocrine-disruptive actions of PEs are reviewed in the context of endometriosis to determine whether a PE-rich diet has a positive or negative effect on the risk and course of endometriosis.
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Affiliation(s)
- Dariusz Szukiewicz
- Department of Biophysics, Physiology & Pathophysiology, Faculty of Health Sciences, Medical University of Warsaw, 02-004 Warsaw, Poland
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Urrego-Pava F, Coy-Barrera E. Isoflavone Content and Nutritional-Related Properties of Debittered Seeds from Two Andean Lupin ( Lupinus mutabilis Sweet) Ecotypes Propagated in Two Soils. Foods 2023; 12:foods12091841. [PMID: 37174379 PMCID: PMC10178703 DOI: 10.3390/foods12091841] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/25/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023] Open
Abstract
Lupinus mutabilis Sweet is a fabaceous plant native to the Andean highlands and produces seeds with valuable nutritional properties. Thus, as part of our research on native emerging food, the present study aimed at determining some nutritional and functional-related features of seeds from two L. mutabilis ecotypes after propagation in two different substrates commonly found in the Bogotá plateau. Propagated plants produced seeds that, after conventional debittering, exhibited attractive contents of soluble protein (24-39 g/100 g dry seed powder (dsp)), phenolic (787-1003 g/100 g dsp), isoflavone (1-104 g/100 g dsp), and iron (5.3-6.4 g/100 g dsp), as well as antioxidant capacity (39-78 µM/100 g dsp). Higher pH, humidity saturation, organic matter, and total nitrogen of silty loam soil promoted isoflavone accumulation and better antioxidant capacity at pH 4-7, and no soil effect was observed for total phenolic and iron contents. The profiles based on isoflavone aglycones were also recorded by liquid chromatography-mass spectrometry, detecting eleven main compounds with mutabilein as the most abundant isoflavone (38.3-104.3 g/100 g dsp). Finally, a formulation was developed to fabricate an emulsion-type drink based on the debittered, pulverized L. mutabilis seeds, resulting in different emulsifying capacities (19-100%) depending on the biopolymer stabilizer, being xanthan gum the best additive. The findings revealed an attractive Andean lupin profile to be used as a raw food material.
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Affiliation(s)
- Francisco Urrego-Pava
- Bioorganic Chemistry Laboratory, Universidad Militar Nueva Granada, Cajicá 250247, Colombia
| | - Ericsson Coy-Barrera
- Bioorganic Chemistry Laboratory, Universidad Militar Nueva Granada, Cajicá 250247, Colombia
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Su C. Pectin modifications at the symbiotic interface. THE NEW PHYTOLOGIST 2023; 238:25-32. [PMID: 36565041 DOI: 10.1111/nph.18705] [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: 08/18/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
Plant cells are surrounded by a structured cell wall, which not only defines cell shape but also provides a structural barrier for protection against pathogen infection. However, the presence of this barrier does not impede the establishment of mutualistic symbioses between plants and several microbes (e.g. ectomycorrhizal fungi, arbuscular mycorrhizal fungi, and rhizobia). To establish such beneficial associations, symbiotic microbes need to colonize the plant tissues via intercellular and/or intracellular infection, a process that requires cell wall modifications. Although cell wall composition and changes during this process have interested researchers for years, the functional characterization of the molecular players involved is still limited. In this viewpoint, based on several new studies, I discuss how the PME-PL/PG pathway mediates cell wall pectin modifications at the symbiotic interface and highlight further research directions which can broaden our understanding of how beneficial root symbioses are established.
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Affiliation(s)
- Chao Su
- Plant Cell Biology, Faculty of Biology, University of Freiburg, 79104, Freiburg, Germany
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Akber MA, Mubeen M, Sohail MA, Khan SW, Solanki MK, Khalid R, Abbas A, Divvela PK, Zhou L. Global distribution, traditional and modern detection, diagnostic, and management approaches of Rhizoctonia solani associated with legume crops. Front Microbiol 2023; 13:1091288. [PMID: 36815202 PMCID: PMC9939780 DOI: 10.3389/fmicb.2022.1091288] [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: 11/06/2022] [Accepted: 12/14/2022] [Indexed: 02/08/2023] Open
Abstract
Sustainable development relies heavily on a food system that is both safe and secure. Several approaches may lead to sustainability and food safety. An increase in the cultivation of legume crops is one of the approaches for enhancing agricultural viability and ensuring adequate food supply. Legumes may increase daily intake of fiber, folate, and protein as substitutes for meat and dairy. They are also crucial in various intercropping systems worldwide. However, legume production has been hampered by Rhizoctonia solani due to its destructive lifestyle. R. solani causes blights, damping off, and rotting diseases in legume crops. Our knowledge of the global distribution of R. solani associated with legume crops (alfalfa, soybean, chickpea, pea, lentil, common bean, and peanut), detection, diagnosis, and management of legume crops diseases caused by R. solani is limited. Traditional approaches rely on the incubation of R. solani, visual examination of symptoms on host legume crops, and microscopy identification. However, these approaches are time-consuming, require technical expertise, fail to detect a minimal amount of inoculum, and are unreliable. Biochemical and molecular-based approaches have been used with great success recently because of their excellent sensitivity and specificity. Along with conventional PCR, nested PCR, multiplex PCR, real-time PCR, magnetic-capture hybridization PCR, and loop-mediated isothermal amplification have been widely used to detect and diagnose R. solani. In the future, Next-generation sequencing will likely be used to a greater extent to detect R. solani. This review outlines global distribution, survival, infection and disease cycle, traditional, biochemical, molecular, and next-generation sequencing detection and diagnostic approaches, and an overview of the resistant resources and other management strategies to cope with R. solani.
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Affiliation(s)
- Muhammad Abdullah Akber
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China,State Key Laboratory of Grassland Agroecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China
| | - Mustansar Mubeen
- Department of Plant Pathology, College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Muhammad Aamir Sohail
- Department of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China
| | - Sher Wali Khan
- Department of Plant Science, Karakoram International University, Gilgit, Pakistan
| | - Manoj Kumar Solanki
- Plant Cytogenetics and Molecular Biology Group, Institute of Biology, Biotechnology and Environmental Protection, Faculty of Natural Sciences, the University of Silesia in Katowice, Katowice, Poland
| | - Rida Khalid
- School of Biological Sciences, University of the Punjab, Lahore, Pakistan
| | - Aqleem Abbas
- Department of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China,Department of Plant Science, Karakoram International University, Gilgit, Pakistan,*Correspondence: Aqleem Abbas, ✉
| | | | - Lei Zhou
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China,Lei Zhou, ✉
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Jan R, Asaf S, Lubna, Asif S, Kim EG, Jang YH, Kim N, Al-Harrasi A, Lee GS, Kim KM. Enhancing the Expression of the OsF3H Gene in Oryza sativa Leads to the Regulation of Multiple Biosynthetic Pathways and Transcriptomic Changes That Influence Insect Resistance. Int J Mol Sci 2022; 23:15308. [PMID: 36499636 PMCID: PMC9737463 DOI: 10.3390/ijms232315308] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 11/29/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022] Open
Abstract
The white-backed planthopper (WBPH) is a major pest of rice crops and causes severe loss of yield. We previously developed the WBPH-resistant rice cultivar "OxF3H" by overexpressing the OsF3H gene. Although there was a higher accumulation of the flavonoids kaempferol (Kr) and quercetin (Qu) as well as salicylic acid (SA) in OxF3H transgenic (OsF3H or Trans) plants compared to the wild type (WT), it is still unclear how OsF3H overexpression affects these WBPH resistant-related changes in gene expression in OxF3H plants. In this study, we analyze RNA-seq data from OxF3H and WT at several points (0 h, 3 h, 12 h, and 24 h) after WBPH infection to explain how overall changes in gene expression happen in these two cultivars. RT-qPCR further validated a number of the genes. Results revealed that the highest number of DEGs (4735) between the two genotypes was detected after 24 h of infection. Interestingly, it was found that several of the DEGs between the WT and OsF3H under control conditions were also differentially expressed in OsF3H in response to WBPH infestation. These results indicate that significant differences in gene expression between the "OxF3H" and "WT" exist as the infection time increases. Many of these DEGs were related to oxidoreductase activity, response to stress, salicylic acid biosynthesis, metabolic process, defense response to pathogen, cellular response to toxic substance, and regulation of hormone levels. Moreover, genes involved in salicylic acid (SA) and ethylene (Et) biosynthesis were upregulated in OxF3H plants, while jasmonic acid (JA), brassinosteroid (Br), and abscisic acid (ABA) signaling pathways were found downregulated in OxF3H plants during WBPH infestation. Interestingly, many DEGs related to pathogenesis, such as OsPR1, OsPR1b, OsNPR1, OsNPR3, and OsNPR5, were found to be significantly upregulated in OxF3H plants. Additionally, genes related to the MAPKs pathway and about 30 WRKY genes involved in different pathways were upregulated in OxF3H plants after WBPH infestation. This suggests that overexpression of the OxF3H gene leads to multiple transcriptomic changes and impacts plant hormones and pathogenic-related and secondary-metabolites-related genes, enhancing the plant's resistance to WBPH infestation.
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Affiliation(s)
- Rahmatullah Jan
- Department of Applied Biosciences, Graduate School, Kyungpook National University, Daegu 41566, Republic of Korea
- Coastal Agriculture Research Institute, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sajjad Asaf
- Natural and Medical Science Research Center, University of Nizwa, Nizwa 611, Oman
| | - Lubna
- Department of Botany, Garden Campus, Abdul Wali Khan University, Mardan 23200, Pakistan
| | - Saleem Asif
- Department of Applied Biosciences, Graduate School, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Eun-Gyeong Kim
- Department of Applied Biosciences, Graduate School, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Yoon-Hee Jang
- Department of Applied Biosciences, Graduate School, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Nari Kim
- Department of Applied Biosciences, Graduate School, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Ahmed Al-Harrasi
- Natural and Medical Science Research Center, University of Nizwa, Nizwa 611, Oman
| | - Gang-Seob Lee
- Department of Agricultural Biotechnology, National Institute of Agricultural Sciences, Rural Development Administration, Jeonju 54874, Republic of Korea
| | - Kyung-Min Kim
- Department of Applied Biosciences, Graduate School, Kyungpook National University, Daegu 41566, Republic of Korea
- Coastal Agriculture Research Institute, Kyungpook National University, Daegu 41566, Republic of Korea
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Wohor OZ, Rispail N, Ojiewo CO, Rubiales D. Pea Breeding for Resistance to Rhizospheric Pathogens. PLANTS (BASEL, SWITZERLAND) 2022; 11:2664. [PMID: 36235530 PMCID: PMC9572552 DOI: 10.3390/plants11192664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 09/30/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
Pea (Pisum sativum L.) is a grain legume widely cultivated in temperate climates. It is important in the race for food security owing to its multipurpose low-input requirement and environmental promoting traits. Pea is key in nitrogen fixation, biodiversity preservation, and nutritional functions as food and feed. Unfortunately, like most crops, pea production is constrained by several pests and diseases, of which rhizosphere disease dwellers are the most critical due to their long-term persistence in the soil and difficulty to manage. Understanding the rhizosphere environment can improve host plant root microbial association to increase yield stability and facilitate improved crop performance through breeding. Thus, the use of various germplasm and genomic resources combined with scientific collaborative efforts has contributed to improving pea resistance/cultivation against rhizospheric diseases. This improvement has been achieved through robust phenotyping, genotyping, agronomic practices, and resistance breeding. Nonetheless, resistance to rhizospheric diseases is still limited, while biological and chemical-based control strategies are unrealistic and unfavourable to the environment, respectively. Hence, there is a need to consistently scout for host plant resistance to resolve these bottlenecks. Herein, in view of these challenges, we reflect on pea breeding for resistance to diseases caused by rhizospheric pathogens, including fusarium wilt, root rots, nematode complex, and parasitic broomrape. Here, we will attempt to appraise and harmonise historical and contemporary knowledge that contributes to pea resistance breeding for soilborne disease management and discuss the way forward.
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Affiliation(s)
- Osman Z. Wohor
- Instituto de Agricultura Sostenible, CSIC, Avenida Menéndez Pidal s/n, 14004 Córdoba, Spain
- Savanna Agriculture Research Institute, CSIR, Nyankpala, Tamale Post TL52, Ghana
| | - Nicolas Rispail
- Instituto de Agricultura Sostenible, CSIC, Avenida Menéndez Pidal s/n, 14004 Córdoba, Spain
| | - Chris O. Ojiewo
- International Maize and Wheat Improvement Center (CIMMYT), ICRAF House, United Nations Avenue—Gigiri, Nairobi P.O. Box 1041-00621, Kenya
| | - Diego Rubiales
- Instituto de Agricultura Sostenible, CSIC, Avenida Menéndez Pidal s/n, 14004 Córdoba, Spain
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Yang B, Zhao Y, Guo Z. Research Progress and Prospect of Alfalfa Resistance to Pathogens and Pests. PLANTS 2022; 11:plants11152008. [PMID: 35956485 PMCID: PMC9370300 DOI: 10.3390/plants11152008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/26/2022] [Accepted: 07/29/2022] [Indexed: 11/21/2022]
Abstract
Alfalfa is one of the most important legume forages in the world and contributes greatly to the improvement of ecosystems, nutrition, and food security. Diseases caused by pathogens and pests severely restrict the production of alfalfa. Breeding resistant varieties is the most economical and effective strategy for the control of alfalfa diseases and pests, and the key to breeding resistant varieties is to identify important resistance genes. Plant innate immunity is the theoretical basis for identifying resistant genes and breeding resistant varieties. In recent years, the framework of plant immunity theory has been gradually formed and improved, and considerable progress has been made in the identification of alfalfa resistance genes and the revelation of the related mechanisms. In this review, we summarize the basic theory of plant immunity and identify alfalfa resistance genes to different pathogens and insects and resistance mechanisms. The current situation, problems, and future prospects of alfalfa resistance research are also discussed. Breeding resistant cultivars with effective resistance genes, together with other novel plant protection technologies, will greatly improve alfalfa production.
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Affiliation(s)
- Bo Yang
- College of Grassland Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Yao Zhao
- Department of Plant Pathology, College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, China
| | - Zhenfei Guo
- College of Grassland Science, Nanjing Agricultural University, Nanjing 210095, China
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Gupta A, Awasthi P, Sharma N, Parveen S, Vats RP, Singh N, Kumar Y, Goel A, Chandran D. Medicarpin confers powdery mildew resistance in Medicago truncatula and activates the salicylic acid signalling pathway. MOLECULAR PLANT PATHOLOGY 2022; 23:966-983. [PMID: 35263504 PMCID: PMC9190973 DOI: 10.1111/mpp.13202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 02/12/2022] [Accepted: 02/12/2022] [Indexed: 05/28/2023]
Abstract
Powdery mildew (PM) caused by the obligate biotrophic fungal pathogen Erysiphe pisi is an economically important disease of legumes. Legumes are rich in isoflavonoids, a class of secondary metabolites whose role in PM resistance is ambiguous. Here we show that the pterocarpan medicarpin accumulates at fungal infection sites, as analysed by fluorescein-tagged medicarpin, and provides penetration and post-penetration resistance against E. pisi in Medicago truncatula in part through the activation of the salicylic acid (SA) signalling pathway. Comparative gene expression and metabolite analyses revealed an early induction of isoflavonoid biosynthesis and accumulation of the defence phytohormones SA and jasmonic acid (JA) in the highly resistant M. truncatula genotype A17 but not in moderately susceptible R108 in response to PM infection. Pretreatment of R108 leaves with medicarpin increased SA levels, SA-associated gene expression, and accumulation of hydrogen peroxide at PM infection sites, and reduced fungal penetration and colony formation. Strong parallels in the levels of medicarpin and SA, but not JA, were observed on medicarpin/SA treatment pre- or post-PM infection. Collectively, our results suggest that medicarpin and SA may act in concert to restrict E. pisi growth, providing new insights into the metabolic and signalling pathways required for PM resistance in legumes.
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Affiliation(s)
- Arunima Gupta
- Laboratory of Plant‐Microbe InteractionsRegional Centre for BiotechnologyNCR Biotech Science ClusterFaridabadHaryanaIndia
| | - Pallavi Awasthi
- Medicinal and Process ChemistryCentral Drug Research InstituteLucknowUttar PradeshIndia
- Academy of Scientific and Innovative ResearchGhaziabadUttar PradeshIndia
| | - Neha Sharma
- Advanced Technology Platform Centre, Regional Centre for BiotechnologyFaridabadHaryanaIndia
| | - Sajiya Parveen
- Medicinal and Process ChemistryCentral Drug Research InstituteLucknowUttar PradeshIndia
- Academy of Scientific and Innovative ResearchGhaziabadUttar PradeshIndia
| | - Ravi P. Vats
- Medicinal and Process ChemistryCentral Drug Research InstituteLucknowUttar PradeshIndia
- Academy of Scientific and Innovative ResearchGhaziabadUttar PradeshIndia
| | - Nirpendra Singh
- Advanced Technology Platform Centre, Regional Centre for BiotechnologyFaridabadHaryanaIndia
- Present address:
Institute of Stem Cell Science and Regenerative MedicineBangaloreKarnatakaIndia
| | - Yashwant Kumar
- Translational Health Science and Technology InstituteNCR Biotech Science ClusterFaridabadHaryanaIndia
| | - Atul Goel
- Medicinal and Process ChemistryCentral Drug Research InstituteLucknowUttar PradeshIndia
- Academy of Scientific and Innovative ResearchGhaziabadUttar PradeshIndia
| | - Divya Chandran
- Laboratory of Plant‐Microbe InteractionsRegional Centre for BiotechnologyNCR Biotech Science ClusterFaridabadHaryanaIndia
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12
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Li R, Sun J, Ning X, Liu D, Chen X. BpEIL1 negatively regulates resistance to Rhizoctonia solani and Alternaria alternata in birch. Gene 2022; 97:81-91. [PMID: 35675986 DOI: 10.1266/ggs.21-00098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Pathogen attacks affect tree health, causing considerable economic losses as well as serious damage to the surrounding environment. Understanding the disease resistance mechanisms of trees is important for tree breeding. In previous studies on birch (Betula platyphylla × B. pendula), we identified a lesion mimic mutant called lmd. We found that reduced expression of BpEIL1 was responsible for the phenotype in lmd. Following cloning, we acquired several BpEIL1 overexpression and suppression lines in birch. In this study, we cloned the BpEIL1 promoter and found that BpEIL1 was primarily expressed in leaves, particularly in veins. We further studied the traits of transgenic lines and the function of BpEIL1 in disease resistance in birch using the BpEIL1 overexpression line OE9, the suppression line SE13 and the non-transgenic line NT. We found that hydrogen peroxide accumulated in SE13 leaves. Ascorbate peroxidase and catalase activity significantly increased in SE13. SE13 was more resistant to the fungal pathogens Alternaria alternata and Rhizoctonia solani than were the OE9 and NT lines. RNA-seq indicated that pathways related to signal transduction, disease resistance and plant immunity were enriched in SE13. BpEIL1 is thus a negative regulatory transcription factor for disease resistance in birch. This study provides a reference for disease resistance of birch and other trees.
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Affiliation(s)
- Ranhong Li
- Department of Life Science and Technology, Mudanjiang Normal University
| | - Jingjing Sun
- Department of Life Science and Technology, Mudanjiang Normal University
| | - Xiaomeng Ning
- Department of Life Science and Technology, Mudanjiang Normal University
| | - Dan Liu
- Department of Life Science and Technology, Mudanjiang Normal University
| | - Xin Chen
- Department of Life Science and Technology, Mudanjiang Normal University
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Rice (Oryza sativa L.) cytochrome P450 protein 716A subfamily CYP716A16 regulates disease resistance. BMC Genomics 2022; 23:343. [PMID: 35505282 PMCID: PMC9066777 DOI: 10.1186/s12864-022-08568-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 04/19/2022] [Indexed: 11/23/2022] Open
Abstract
Background The sustainable development of rice production is facing severe threats by a variety of pathogens, such as necrotrophic Rhizoctonia solani and hemibiotrophic Xanthomonas oryzae pv. oryzae (Xoo). Mining and applying resistance genes to increase the durable resistance of rice is an effective method that can be used to control these diseases. Results In this research, we isolated and characterized CYP716A16, which is a positive regulator of rice to R. solani AG1-IA and Xoo, and belongs to the cytochrome P450 (CYP450) protein 716A subfamily. Overexpression (OE) of CYP716A16 resulted in enhanced resistance to R. solani AG1-IA and Xoo, while RNA interference (RNAi) of CYP716A16 resulted in increased susceptibility compared with wild-type (WT) plants. Additionally, jasmonic acid (JA)-dependent defense responses and reactive oxygen species (ROS) were activated in the CYP716A16-OE lines after R. solani AG1-IA inoculation. The comparative transcriptomic and metabolomics analysis of CYP716A16-OE and the WT lines showed that OE of CYP716A16 activated the biosynthesis of flavonoids and increased the amounts of narcissoside, methylophiopogonanone A, oroxin A, and amentoflavone in plants. Conclusion Based on these results, we suggest that JA-dependent response, ROS level, multiple resistance-related proteins, and flavonoid contents play an important role in CYP716A16-regulated R. solani AG1-IA and Xoo resistance. Our results broaden our knowledge regarding the function of a P450 protein 716A subfamily in disease resistance and provide new insight into the molecular mechanism of rice immune response. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08568-8.
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14
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Bisht N, Gupta A, Awasthi P, Goel A, Chandran D, Sharma N, Singh N. Development of a rapid LC-MS/MS method for the simultaneous quantification of various flavonoids, isoflavonoids, and phytohormones extracted from Medicago truncatula leaves. J LIQ CHROMATOGR R T 2022. [DOI: 10.1080/10826076.2022.2040028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Neema Bisht
- Advanced Technology Platform Centre, Regional Centre for Biotechnology, Faridabad, India
| | - Arunima Gupta
- Laboratory of Plant-Microbe Interactions, Regional Centre for Biotechnology, Faridabad, India
| | - Pallavi Awasthi
- Medicinal and Process Chemistry, Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Atul Goel
- Medicinal and Process Chemistry, Central Drug Research Institute, Lucknow, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Divya Chandran
- Laboratory of Plant-Microbe Interactions, Regional Centre for Biotechnology, Faridabad, India
| | - Neha Sharma
- Advanced Technology Platform Centre, Regional Centre for Biotechnology, Faridabad, India
| | - Nirpendra Singh
- Advanced Technology Platform Centre, Regional Centre for Biotechnology, Faridabad, India
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15
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Soal NC, Coetzee MPA, van der Nest MA, Hammerbacher A, Wingfield BD. Phenolic degradation by catechol dioxygenases is associated with pathogenic fungi with a necrotrophic lifestyle in the Ceratocystidaceae. G3 (BETHESDA, MD.) 2022; 12:jkac008. [PMID: 35077565 PMCID: PMC8896014 DOI: 10.1093/g3journal/jkac008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Accepted: 01/07/2022] [Indexed: 11/13/2022]
Abstract
Fungal species of the Ceratocystidaceae grow on their host plants using a variety of different lifestyles, from saprophytic to highly pathogenic. Although many genomes of fungi in the Ceratocystidaceae are publicly available, it is not known how the genes that encode catechol dioxygenases (CDOs), enzymes involved in the degradation of phenolic plant defense compounds, differ among members of the Ceratocystidaceae. The aim of this study was therefore to identify and characterize the genes encoding CDOs in the genomes of Ceratocystidaceae representatives. We found that genes encoding CDOs are more abundant in pathogenic necrotrophic species of the Ceratocystidaceae and less abundant in saprophytic species. The loss of the CDO genes and the associated 3-oxoadipate catabolic pathway appears to have occurred in a lineage-specific manner. Taken together, this study revealed a positive association between CDO gene copy number and fungal lifestyle in Ceratocystidaceae representatives.
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Affiliation(s)
- Nicole C Soal
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute, University of Pretoria, Pretoria 0028, South Africa
| | - Martin P A Coetzee
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute, University of Pretoria, Pretoria 0028, South Africa
| | - Magriet A van der Nest
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute, University of Pretoria, Pretoria 0028, South Africa
- Biotechnology Platform, Agricultural Research Council (ARC), Pretoria 0110, South Africa
| | - Almuth Hammerbacher
- Department of Zoology and Entomology, Forestry and Agricultural Biotechnology Institute, University of Pretoria, Pretoria 0028, South Africa
| | - Brenda D Wingfield
- Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute, University of Pretoria, Pretoria 0028, South Africa
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16
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Cox LD, Munholland S, Mats L, Zhu H, Crosby WL, Lukens L, Pauls KP, Bozzo GG. The Induction of the Isoflavone Biosynthesis Pathway Is Associated with Resistance to Common Bacterial Blight in Phaseolus vulgaris L. Metabolites 2021; 11:433. [PMID: 34357327 PMCID: PMC8306140 DOI: 10.3390/metabo11070433] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/24/2021] [Accepted: 06/26/2021] [Indexed: 11/17/2022] Open
Abstract
Xanthomonas axonopodis infects common bean (Phaseolus vulgaris L.) causing the disease common bacterial blight (CBB). The aim of this study was to investigate the molecular and metabolic mechanisms underlying CBB resistance in P. vulgaris. Trifoliate leaves of plants of a CBB-resistant P. vulgaris recombinant inbred line (RIL) and a CBB-susceptible RIL were inoculated with X. axonopodis or water (mock treatment). Leaves sampled at defined intervals over a 48-h post-inoculation (PI) period were monitored for alterations in global transcript profiles. A total of 800 genes were differentially expressed between pathogen and mock treatments across both RILs; approximately half were differentially expressed in the CBB-resistant RIL at 48 h PI. Notably, there was a 4- to 32-fold increased transcript abundance for isoflavone biosynthesis genes, including several isoflavone synthases, isoflavone 2'-hydroxylases and isoflavone reductases. Ultra-high performance liquid chromatography-tandem mass spectrometry assessed leaf metabolite levels as a function of the PI period. The concentrations of the isoflavones daidzein and genistein and related metabolites coumestrol and phaseollinisoflavan were increased in CBB-resistant RIL plant leaves after exposure to the pathogen. Isoflavone pathway transcripts and metabolite profiles were unaffected in the CBB-susceptible RIL. Thus, induction of the isoflavone pathway is associated with CBB-resistance in P. vulgaris.
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Affiliation(s)
- Laura D. Cox
- Department of Plant Agriculture, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada; (L.D.C.); (L.L.); (K.P.P.)
| | - Seth Munholland
- Department of Biological Sciences, University of Windsor, 401 Sunset Ave, Windsor, ON N9B 3P4, Canada; (S.M.); (W.L.C.)
| | - Lili Mats
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, 93 Stone Road West, Guelph, ON N1G 5C9, Canada; (L.M.); (H.Z.)
| | - Honghui Zhu
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, 93 Stone Road West, Guelph, ON N1G 5C9, Canada; (L.M.); (H.Z.)
| | - William L. Crosby
- Department of Biological Sciences, University of Windsor, 401 Sunset Ave, Windsor, ON N9B 3P4, Canada; (S.M.); (W.L.C.)
| | - Lewis Lukens
- Department of Plant Agriculture, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada; (L.D.C.); (L.L.); (K.P.P.)
| | - Karl Peter Pauls
- Department of Plant Agriculture, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada; (L.D.C.); (L.L.); (K.P.P.)
| | - Gale G. Bozzo
- Department of Plant Agriculture, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada; (L.D.C.); (L.L.); (K.P.P.)
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17
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Production of Bovine Equol-Enriched Milk: A Review. Animals (Basel) 2021; 11:ani11030735. [PMID: 33800327 PMCID: PMC7999515 DOI: 10.3390/ani11030735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 03/02/2021] [Accepted: 03/04/2021] [Indexed: 11/22/2022] Open
Abstract
Simple Summary Milk and dairy products contain many substances beneficial to human health; moreover, the contents of some of these substances can be enhanced. This is also the case of isoflavones which are compounds of plant origin that can be ingested and metabolized by cattle and, subsequently, secreted into bovine milk. An especially healthful substance called equol is ranked among isoflavone metabolites, commonly produced in the digestive tract of cattle. Equol content in milk can be modified by using feedstuffs with different contents of isoflavones or by milk processing and storage. Abstract Milk and dairy products are important sources of nutrients in the human diet because they contain a number of essential substances and other biologically active components. Many of these substances can be modified, and thus offer opportunities to use milk and dairy products as functional food. Isoflavones are particularly important in human nutrition due to their diverse pharmacological and antioxidant properties. The clinical effectiveness of isoflavone-rich products is believed to be dependent on their ability to metabolize daidzein to equol, which may directly exert cancer preventive effects. However, only approximately 30–40% of humans are able to produce equol, while animals, in general, produce equol. Equol is the predominant product of bacterial metabolism of isoflavones and can be found in various amounts in some food of animal origin, especially in milk. Therefore, milk and dairy products can be considered to be sources of equol for humans who are not able to produce this metabolite. When the content of isoflavones in milk is to be modified, two groups of factors should be considered, i.e., dietary factors that include the source of isoflavones and the processing effects on feedstuffs and animal factors that include the intake of isoflavones, ruminal and postruminal changes, and the health and physiological status of animals. The approximate content of isoflavones in milk can be predicted using carry-over rates for different dietary sources or using a formula that describes the relationship between equol concentration in milk and formononetin intake. Processing and storage can affect the content and profile of isoflavones in milk and dairy products.
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18
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Dinkins RD, Hancock J, Coe BL, May JB, Goodman JP, Bass WT, Liu J, Fan Y, Zheng Q, Zhu H. Isoflavone levels, nodulation and gene expression profiles of a CRISPR/Cas9 deletion mutant in the isoflavone synthase gene of red clover. PLANT CELL REPORTS 2021; 40:517-528. [PMID: 33389047 DOI: 10.1007/s00299-020-02647-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 12/01/2020] [Indexed: 06/12/2023]
Abstract
Isoflavones are not involved in rhizobial signaling in red clover, but likely play a role in defense in the rhizosphere. Red clover (Trifolium pratense) is a high-quality forage legume, well suited for grazing and hay production in the temperate regions of the world. Like many legumes, red clover produces a number of phenylpropanoid compounds including anthocyanidins, flavan-3-ols, flavanols, flavanones, flavones, and isoflavones. The study of isoflavone biosynthesis and accumulation in legumes has come into the forefront of biomedical and agricultural research due to potential for medicinal, antimicrobial, and environmental implications. CRISPR/Cas9 was used to knock out the function of a key enzyme in the biosynthesis of isoflavones, isoflavone synthase (IFS1). A hemizygous plant carrying a 9-bp deletion in the IFS1 gene was recovered and was intercrossed to obtain homozygous mutant plants. Levels of the isoflavones formononetin, biochanin A and genistein were significantly reduced in the mutant plants. Wild-type and mutant plants were inoculated with rhizobia to test the effect of the mutation on nodulation, but no significant differences were observed, suggesting that these isoflavones do not play important roles in nodulation. Gene expression profiling revealed an increase in expression of the upstream genes producing the precursors for IFS1, namely, phenylalanine ammonium lyase and chalcone synthase, but there were no significant differences in IFS1 gene expression or in the downstream genes in the production of specific isoflavones. Higher expression in genes involved in ethylene response was observed in the mutant plants. This response is normally associated with biotic stress, suggesting that the plants may have been responding to cues in the surrounding rhizosphere due to lower levels of isoflavones.
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Affiliation(s)
- Randy D Dinkins
- USDA-ARS, Forage-Animal Production Research Unit, Lexington, KY, USA.
| | - Julie Hancock
- College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY, USA
| | - Brenda L Coe
- USDA-ARS, Forage-Animal Production Research Unit, Lexington, KY, USA
| | - John B May
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, USA
| | - Jack P Goodman
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, USA
| | - William T Bass
- USDA-ARS, Forage-Animal Production Research Unit, Lexington, KY, USA
| | - Jinge Liu
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, USA
| | - Yinglun Fan
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, USA
- College of Agriculture, Liaocheng University, Liaocheng, China
| | - Qiaolin Zheng
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, USA
- Department of Plant Pathology, University of Florida, IFAS, Fort Pierce, FL, USA
| | - Hongyan Zhu
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, USA
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19
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Kumar G, Saad KR, Puthusseri B, Arya M, Shetty NP, Giridhar P. Exogenous Serotonin and Melatonin Regulate Dietary Isoflavones Profoundly through Ethylene Biosynthesis in Soybean [ Glycine max (L.) Merr.]. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:1888-1899. [PMID: 33529027 DOI: 10.1021/acs.jafc.0c07457] [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] [Indexed: 05/07/2023]
Abstract
Serotonin and melatonin are important signaling and stress mitigating molecules. However, their role and molecular mechanism in the accumulation of isoflavones are not clearly defined. To elucidate their functions, serotonin and melatonin were applied to in vitro cultures of soybean at different concentrations and analyzed to assess the accumulation of isoflavone content followed by transcript levels of biosynthesis genes at different time intervals. Increased total phenolics, total flavonoids, and different forms of isoflavone content were observed in the treatments. Expression levels of critical genes in isoflavone, ethylene, jasmonic acid, abscisic acid, and melatonin biosynthesis and related transcription factor were quantified. A correlation was observed between the expression of ethylene biosynthesis genes (S-adenosylmethionine synthase and 1-aminocyclopropane-1-carboxylate oxidase) and isoflavone biosynthesis genes (chalcone synthase, chalcone reductase, and isoflavone synthase). We hypothesize that, under serotonin and melatonin treatments, ethylene biosynthesis may play a role in the increase/decrease in isoflavone content in soybean culture.
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Affiliation(s)
- Gyanendra Kumar
- Plant Cell Biotechnology Department, CSIR-Central Food Technological Research Institute, Mysore, 570 020 Karnataka, India
| | - Kirti R Saad
- Plant Cell Biotechnology Department, CSIR-Central Food Technological Research Institute, Mysore, 570 020 Karnataka, India
| | - Bijesh Puthusseri
- Plant Cell Biotechnology Department, CSIR-Central Food Technological Research Institute, Mysore, 570 020 Karnataka, India
| | - Monisha Arya
- Plant Cell Biotechnology Department, CSIR-Central Food Technological Research Institute, Mysore, 570 020 Karnataka, India
| | - Nandini P Shetty
- Plant Cell Biotechnology Department, CSIR-Central Food Technological Research Institute, Mysore, 570 020 Karnataka, India
| | - Parvatam Giridhar
- Plant Cell Biotechnology Department, CSIR-Central Food Technological Research Institute, Mysore, 570 020 Karnataka, India
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Dong J, Wang Y, Xian Q, Chen X, Xu J. Transcriptome analysis reveals ethylene-mediated defense responses to Fusarium oxysporum f. sp. cucumerinum infection in Cucumis sativus L. BMC PLANT BIOLOGY 2020; 20:334. [PMID: 32678006 PMCID: PMC7364617 DOI: 10.1186/s12870-020-02537-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 07/01/2020] [Indexed: 05/31/2023]
Abstract
BACKGROUND Fusarium wilt, caused by Fusarium oxysporum f. sp. cucumerinum (Foc), is a severe disease affecting cucumber (Cucumis sativus L.) production worldwide, but mechanisms underlying Fusarium wilt resistance in cucumber remain unknown. To better understand of the defense mechanisms elicited in response to Foc inoculation, RNA sequencing-based transcriptomic profiling of responses of the Fusarium wilt-resistant cucumber line 'Rijiecheng' at 0, 24, 48, 96, and 192 h after Foc inoculation was performed. RESULTS We identified 4116 genes that were differentially expressed between 0 h and other time points after inoculation. All ethylene-related and pathogenesis-related genes from the differentially expressed genes were filtered out. Real-time PCR analysis showed that ethylene-related genes were induced in response to Foc infection. Importantly, after Foc infection and exogenous application of ethephon, a donor of ethylene, the ethylene-related genes were highly expressed. In response to exogenous ethephon treatment in conjunction with Foc inoculation, the infection resistance of cucumber seedlings was enhanced and endogenous ethylene biosynthesis increased dramatically. CONCLUSION Collectively, ethylene signaling pathways play a positive role in regulating the defense response of cucumber to Foc infection. The results provide insight into the cucumber Fusarium wilt defense mechanisms and provide valuable information for breeding new cucumber cultivars with enhanced Fusarium wilt tolerance.
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Affiliation(s)
- Jingping Dong
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - Yuean Wang
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - Qianqian Xian
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu Province, China
| | - Xuehao Chen
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu Province, China.
- State Key Laboratory of Vegetable Germplasm Innovation, Tianjin, China.
| | - Jun Xu
- School of Horticulture and Plant Protection, Yangzhou University, Yangzhou, Jiangsu Province, China.
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Zhang L, Kamphuis LG, Guo Y, Jacques S, Singh KB, Gao LL. Ethylene Is Not Essential for R-Gene Mediated Resistance but Negatively Regulates Moderate Resistance to Some Aphids in Medicago truncatula. Int J Mol Sci 2020; 21:ijms21134657. [PMID: 32629952 PMCID: PMC7369913 DOI: 10.3390/ijms21134657] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 06/23/2020] [Accepted: 06/27/2020] [Indexed: 02/02/2023] Open
Abstract
Ethylene is important for plant responses to environmental factors. However, little is known about its role in aphid resistance. Several types of genetic resistance against multiple aphid species, including both moderate and strong resistance mediated by R genes, have been identified in Medicago truncatula. To investigate the potential role of ethylene, a M. truncatula ethylene- insensitive mutant, sickle, was analysed. The sickle mutant occurs in the accession A17 that has moderate resistance to Acyrthosiphon kondoi, A. pisum and Therioaphis trifolii. The sickle mutant resulted in increased antibiosis-mediated resistance against A. kondoi and T. trifolii but had no effect on A. pisum. When sickle was introduced into a genetic background carrying resistance genes, AKR (A. kondoi resistance), APR (A. pisum resistance) and TTR (T. trifolii resistance), it had no effect on the strong aphid resistance mediated by these genes, suggesting that ethylene signaling is not essential for their function. Interestingly, for the moderate aphid resistant accession, the sickle mutant delayed leaf senescence following aphid infestation and reduced the plant biomass losses caused by both A. kondoi and T. trifolii. These results suggest manipulation of the ethylene signaling pathway could provide aphid resistance and enhance plant tolerance against aphid feeding.
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Affiliation(s)
- Lijun Zhang
- CSIRO Agriculture and Food, Wembley, WA 6014, Australia; (L.Z.); (L.G.K.); (Y.G.); (S.J.)
- College of Plant Protection, Shanxi Agricultural University, Taigu 030801, China
| | - Lars G. Kamphuis
- CSIRO Agriculture and Food, Wembley, WA 6014, Australia; (L.Z.); (L.G.K.); (Y.G.); (S.J.)
- The UWA Institute of Agriculture, The University of Western Australia, Crawley, WA 6009, Australia
| | - Yanqiong Guo
- CSIRO Agriculture and Food, Wembley, WA 6014, Australia; (L.Z.); (L.G.K.); (Y.G.); (S.J.)
- College of Plant Protection, Shanxi Agricultural University, Taigu 030801, China
| | - Silke Jacques
- CSIRO Agriculture and Food, Wembley, WA 6014, Australia; (L.Z.); (L.G.K.); (Y.G.); (S.J.)
- College of Plant Protection, Shanxi Agricultural University, Taigu 030801, China
| | - Karam B. Singh
- CSIRO Agriculture and Food, Wembley, WA 6014, Australia; (L.Z.); (L.G.K.); (Y.G.); (S.J.)
- The UWA Institute of Agriculture, The University of Western Australia, Crawley, WA 6009, Australia
- Correspondence: (K.B.S.); (L.-L.G.); Tel.:+61-8-9333-6320 (K.B.S.); Fax: +61-8-9387-8991 (K.B.S.)
| | - Ling-Ling Gao
- CSIRO Agriculture and Food, Wembley, WA 6014, Australia; (L.Z.); (L.G.K.); (Y.G.); (S.J.)
- Correspondence: (K.B.S.); (L.-L.G.); Tel.:+61-8-9333-6320 (K.B.S.); Fax: +61-8-9387-8991 (K.B.S.)
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Zhang P, Du H, Wang J, Pu Y, Yang C, Yan R, Yang H, Cheng H, Yu D. Multiplex CRISPR/Cas9-mediated metabolic engineering increases soya bean isoflavone content and resistance to soya bean mosaic virus. PLANT BIOTECHNOLOGY JOURNAL 2020; 18:1384-1395. [PMID: 31769589 PMCID: PMC7206993 DOI: 10.1111/pbi.13302] [Citation(s) in RCA: 95] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Accepted: 11/18/2019] [Indexed: 05/18/2023]
Abstract
Isoflavonoids, which include a variety of secondary metabolites, are derived from the phenylpropanoid pathway and are distributed predominantly in leguminous plants. These compounds play a critical role in plant-environment interactions and are beneficial to human health. Isoflavone synthase (IFS) is a key enzyme in isoflavonoid synthesis and shares a common substrate with flavanone-3-hydroxylase (F3H) and flavone synthase II (FNS II). In this study, CRISPR/Cas9-mediated multiplex gene-editing technology was employed to simultaneously target GmF3H1, GmF3H2 and GmFNSII-1 in soya bean hairy roots and plants. Various mutation types and frequencies were observed in hairy roots. Higher mutation efficiencies were found in the T0 transgenic plants, with a triple gene mutation efficiency of 44.44%, and these results of targeted mutagenesis were stably inherited in the progeny. Metabolomic analysis of T0 triple-mutants leaves revealed significant improvement in isoflavone content. Compared with the wild type, the T3 generation homozygous triple mutants had approximately twice the leaf isoflavone content, and the soya bean mosaic virus (SMV) coat protein content was significantly reduced by one-third after infection with strain SC7, suggesting that increased isoflavone content enhanced the leaf resistance to SMV. The isoflavone content in the seeds of T2 triple mutants was also significantly increased. This study provides not only materials for the improvement of soya bean isoflavone content and resistance to SMV but also a simple system to generate multiplex mutations in soya bean, which may be beneficial for further breeding and metabolic engineering.
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Affiliation(s)
- Peipei Zhang
- National Center for Soybean ImprovementNational Key Laboratory of Crop Genetics and Germplasm EnhancementJiangsu Collaborative Innovation Center for Modern Crop ProductionNanjing Agricultural UniversityNanjingChina
| | - Hongyang Du
- National Center for Soybean ImprovementNational Key Laboratory of Crop Genetics and Germplasm EnhancementJiangsu Collaborative Innovation Center for Modern Crop ProductionNanjing Agricultural UniversityNanjingChina
- Key Laboratory of Rice Genetic Breeding of Anhui ProvinceRice Research InstituteAnhui Academy of Agricultural ScienceHefeiChina
| | - Jiao Wang
- National Center for Soybean ImprovementNational Key Laboratory of Crop Genetics and Germplasm EnhancementJiangsu Collaborative Innovation Center for Modern Crop ProductionNanjing Agricultural UniversityNanjingChina
| | - Yixiang Pu
- National Center for Soybean ImprovementNational Key Laboratory of Crop Genetics and Germplasm EnhancementJiangsu Collaborative Innovation Center for Modern Crop ProductionNanjing Agricultural UniversityNanjingChina
| | - Changyun Yang
- National Center for Soybean ImprovementNational Key Laboratory of Crop Genetics and Germplasm EnhancementJiangsu Collaborative Innovation Center for Modern Crop ProductionNanjing Agricultural UniversityNanjingChina
| | - Rujuan Yan
- National Center for Soybean ImprovementNational Key Laboratory of Crop Genetics and Germplasm EnhancementJiangsu Collaborative Innovation Center for Modern Crop ProductionNanjing Agricultural UniversityNanjingChina
| | - Hui Yang
- National Center for Soybean ImprovementNational Key Laboratory of Crop Genetics and Germplasm EnhancementJiangsu Collaborative Innovation Center for Modern Crop ProductionNanjing Agricultural UniversityNanjingChina
- School of Life SciencesGuangzhou UniversityGuangzhouChina
| | - Hao Cheng
- National Center for Soybean ImprovementNational Key Laboratory of Crop Genetics and Germplasm EnhancementJiangsu Collaborative Innovation Center for Modern Crop ProductionNanjing Agricultural UniversityNanjingChina
| | - Deyue Yu
- National Center for Soybean ImprovementNational Key Laboratory of Crop Genetics and Germplasm EnhancementJiangsu Collaborative Innovation Center for Modern Crop ProductionNanjing Agricultural UniversityNanjingChina
- School of Life SciencesGuangzhou UniversityGuangzhouChina
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23
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Ng JLP, Welvaert A, Wen J, Chen R, Mathesius U. The Medicago truncatula PIN2 auxin transporter mediates basipetal auxin transport but is not necessary for nodulation. JOURNAL OF EXPERIMENTAL BOTANY 2020; 71:1562-1573. [PMID: 31738415 DOI: 10.1093/jxb/erz510] [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: 08/06/2019] [Accepted: 11/14/2019] [Indexed: 06/10/2023]
Abstract
The development of root nodules leads to an increased auxin response in early nodule primordia, which is mediated by changes in acropetal auxin transport in some legumes. Here, we investigated the role of root basipetal auxin transport during nodulation. Rhizobia inoculation significantly increased basipetal auxin transport in both Medicago truncatula and Lotus japonicus. In M. truncatula, this increase was dependent on functional Nod factor signalling through NFP, NIN, and NSP2, as well as ethylene signalling through SKL. To test whether increased basipetal auxin transport is required for nodulation, we examined a loss-of-function mutant of the M. truncatula PIN2 gene. The Mtpin2 mutant exhibited a reduction in basipetal auxin transport and an agravitropic phenotype. Inoculation of Mtpin2 roots with rhizobia still led to a moderate increase in basipetal auxin transport, but the mutant nodulated normally. No clear differences in auxin response were observed during nodule development. Interestingly, inoculation of wild-type roots increased lateral root numbers, whereas inoculation of Mtpin2 mutants resulted in reduced lateral root numbers compared with uninoculated roots. We conclude that the MtPIN2 auxin transporter is involved in basipetal auxin transport, that its function is not essential for nodulation, but that it plays an important role in the control of lateral root development.
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Affiliation(s)
- Jason L P Ng
- Division of Plant Science, Research School of Biology, Australian National University, Canberra, Australia
| | - Astrid Welvaert
- Division of Plant Science, Research School of Biology, Australian National University, Canberra, Australia
| | - Jiangqi Wen
- Noble Research Institute LLC, Ardmore, OK, USA
| | - Rujin Chen
- School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Ulrike Mathesius
- Division of Plant Science, Research School of Biology, Australian National University, Canberra, Australia
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24
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Křížová L, Dadáková K, Kašparovská J, Kašparovský T. Isoflavones. Molecules 2019; 24:E1076. [PMID: 30893792 PMCID: PMC6470817 DOI: 10.3390/molecules24061076] [Citation(s) in RCA: 339] [Impact Index Per Article: 67.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 02/28/2019] [Accepted: 03/01/2019] [Indexed: 12/13/2022] Open
Abstract
Phytoestrogens are naturally occurring nonsteroidal phenolic plant compounds that, due to their molecular structure and size, resemble vertebrate steroids estrogens. This review is focused on plant flavonoids isoflavones, which are ranked among the most estrogenic compounds. The main dietary sources of isoflavones for humans are soybean and soybean products, which contain mainly daidzein and genistein. When they are consumed, they exert estrogenic and/or antiestrogenic effects. Isoflavones are considered chemoprotective and can be used as an alternative therapy for a wide range of hormonal disorders, including several cancer types, namely breast cancer and prostate cancer, cardiovascular diseases, osteoporosis, or menopausal symptoms. On the other hand, isoflavones may also be considered endocrine disruptors with possible negative influences on the state of health in a certain part of the population or on the environment. This review deals with isoflavone classification, structure, and occurrence, with their metabolism, biological, and health effects in humans and animals, and with their utilization and potential risks.
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Affiliation(s)
- Ludmila Křížová
- Department of Biochemistry, Faculty of Science, Masaryk University, Kotlarska 2, 61137 Brno, Czech Republic.
| | - Kateřina Dadáková
- Department of Biochemistry, Faculty of Science, Masaryk University, Kotlarska 2, 61137 Brno, Czech Republic.
| | - Jitka Kašparovská
- Department of Biochemistry, Faculty of Science, Masaryk University, Kotlarska 2, 61137 Brno, Czech Republic.
| | - Tomáš Kašparovský
- Department of Biochemistry, Faculty of Science, Masaryk University, Kotlarska 2, 61137 Brno, Czech Republic.
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25
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The rice CYP78A gene BSR2 confers resistance to Rhizoctonia solani and affects seed size and growth in Arabidopsis and rice. Sci Rep 2019; 9:587. [PMID: 30679785 PMCID: PMC6345848 DOI: 10.1038/s41598-018-37365-1] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 11/28/2018] [Indexed: 11/08/2022] Open
Abstract
The fungal pathogen Rhizoctonia solani causes devastating diseases in hundreds of plant species. Among these, R. solani causes sheath blight, one of the three major diseases in rice. To date, few genes have been reported that confer resistance to R. solani. Here, rice-FOX Arabidopsis lines identified as having resistance to a bacterial pathogen, Pseudomonas syringae pv. tomato DC3000, and a fungal pathogen, Colletotrichum higginsianum were screened for disease resistance to R. solani. BROAD-SPECTRUM RESISTANCE2 (BSR2), a gene encoding an uncharacterized cytochrome P450 protein belonging to the CYP78A family, conferred resistance to R. solani in Arabidopsis. When overexpressed in rice, BSR2 also conferred resistance to two R. solani anastomosis groups. Both Arabidopsis and rice plants overexpressing BSR2 had slower growth and produced longer seeds than wild-type control plants. In contrast, BSR2-knockdown rice plants were more susceptible to R. solani and displayed faster growth and shorter seeds in comparison with the control. These results indicate that BSR2 is associated with disease resistance, growth rate and seed size in rice and suggest that its function is evolutionarily conserved in both monocot rice and dicot Arabidopsis.
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26
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Rey T, Jacquet C. Symbiosis genes for immunity and vice versa. CURRENT OPINION IN PLANT BIOLOGY 2018; 44:64-71. [PMID: 29550547 DOI: 10.1016/j.pbi.2018.02.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 02/28/2018] [Accepted: 02/28/2018] [Indexed: 05/13/2023]
Abstract
Basic molecular knowledge on plant-pathogen interactions has largely been gained from reverse and forward genetics in Arabidopsis thaliana. However, as this model plant is unable to establish endosymbiosis with mycorrhizal fungi or rhizobia, plant responses to mutualistic symbionts have been studied in parallel in other plant species, mainly legumes. The resulting analyses led to the identification of gene networks involved in various functions, from microbe recognition to signalling and plant responses, thereafter assigned to either mutualistic symbiosis or immunity, according to the nature of the initially inoculated microbe. The increasing development of new pathosystems and genetic resources in model legumes and the implementation of reverse genetics in plants such as rice and tomato that interact with both mycorrhizal fungi and pathogens, have highlighted the dual role of plant genes previously thought to be specific to mutualistic or pathogenic interactions. The next challenges will be to determine whether such genes have similar functions in both types of interaction and if not, whether the perception of microbial compounds or the involvement of specific plant signalling components is responsible for the appropriate plant responses to the encountered microorganisms.
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Affiliation(s)
- Thomas Rey
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS), Castanet Tolosan, France
| | - Christophe Jacquet
- Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, Centre National de la Recherche Scientifique (CNRS), Université Paul Sabatier (UPS), Castanet Tolosan, France.
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27
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Potent Attractant for Root-Knot Nematodes in Exudates from Seedling Root Tips of Two Host Species. Sci Rep 2018; 8:10847. [PMID: 30022095 PMCID: PMC6052019 DOI: 10.1038/s41598-018-29165-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 07/06/2018] [Indexed: 11/24/2022] Open
Abstract
Root-knot nematodes (RKN; Meloidogyne spp.) can parasitize over 2,000 plant species and are generally considered to be the most agriculturally damaging group of plant-parasitic nematodes worldwide. Infective juveniles (J2) are non-feeding and must locate and invade a host before their reserves are depleted. However, what attracts J2 to appropriate root entry sites is not known. An aim of this research is to identify semiochemicals that attract RKN to roots. J2 of the three RKN species tested are highly attracted to root tips of both tomato and Medicago truncatula. For both hosts, mutants defective in ethylene signaling were found to be more attractive than those of wild type. We determined that cell-free exudates collected from tomato and M. truncatula seedling root tips were highly attractive to M. javanica J2. Using a pluronic gel-based microassay to monitor chemical fractionation, we determined that for both plant species the active component fractionated similarly and had a mass of ~400 based on size-exclusion chromatography. This characterization is a first step toward identification of a potent and specific attractant from host roots that attracts RKN. Such a compound is potentially a valuable tool for developing novel and safe control strategies.
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28
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Berrabah F, Balliau T, Aït-Salem EH, George J, Zivy M, Ratet P, Gourion B. Control of the ethylene signaling pathway prevents plant defenses during intracellular accommodation of the rhizobia. THE NEW PHYTOLOGIST 2018; 219:310-323. [PMID: 29668080 DOI: 10.1111/nph.15142] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 02/28/2018] [Indexed: 05/11/2023]
Abstract
Massive intracellular populations of symbiotic bacteria, referred to as rhizobia, are housed in legume root nodules. Little is known about the mechanisms preventing the development of defense in these organs although genes such as SymCRK and DNF2 of the model legume Medicago truncatula are required for this control after rhizobial internalization in host nodule cells. Here we investigated the molecular basis of the symbiotic control of immunity. Proteomic analysis was performed to compare functional (wild-type) and defending nodules (symCRK). Based on the results, the control of plant immunity during the functional step of the symbiosis was further investigated by biochemical and pharmacological approaches as well as by transcript and histology analysis. Ethylene was identified as a potential signal inducing plant defenses in symCRK nodules. Involvement of this phytohormone in symCRK and dnf2-developed defenses and in the death of intracellular rhizobia was confirmed. This negative effect of ethylene depended on the M. truncatula sickle gene and was also observed in the legume Lotus japonicus. Together, these data indicate that prevention of ethylene-triggered defenses is crucial for the persistence of endosymbiosis and that the DNF2 and SymCRK genes are required for this process.
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Affiliation(s)
- Fathi Berrabah
- Institute of Plant Sciences Paris Saclay IPS2, CNRS, INRA, Université Paris-Sud, Université Evry, Université Paris-Saclay, Batiment 630, Orsay, 91405, France
- Institute of Plant Sciences Paris-Saclay IPS2, Paris Diderot, Sorbonne Paris-Cité, Bâtiment 630, Orsay, 91405, France
| | - Thierry Balliau
- INRA, PAPPSO, UMR Génétique Quantitative et Évolution - Le Moulon, INRA/Université Paris-Sud/CNRS/AgroParisTech, Université Paris-Saclay, Gif-sur-Yvette, F-91190, France
| | - El Hosseyn Aït-Salem
- Institute of Plant Sciences Paris Saclay IPS2, CNRS, INRA, Université Paris-Sud, Université Evry, Université Paris-Saclay, Batiment 630, Orsay, 91405, France
- Institute of Plant Sciences Paris-Saclay IPS2, Paris Diderot, Sorbonne Paris-Cité, Bâtiment 630, Orsay, 91405, France
| | - Jeoffrey George
- Institute of Plant Sciences Paris Saclay IPS2, CNRS, INRA, Université Paris-Sud, Université Evry, Université Paris-Saclay, Batiment 630, Orsay, 91405, France
- Institute of Plant Sciences Paris-Saclay IPS2, Paris Diderot, Sorbonne Paris-Cité, Bâtiment 630, Orsay, 91405, France
| | - Michel Zivy
- CNRS, PAPPSO, UMR Génétique Quantitative et Évolution - Le Moulon, INRA/Université Paris-Sud/CNRS/AgroParisTech, Université Paris-Saclay, Gif-sur-Yvette, F-91190, France
| | - Pascal Ratet
- Institute of Plant Sciences Paris Saclay IPS2, CNRS, INRA, Université Paris-Sud, Université Evry, Université Paris-Saclay, Batiment 630, Orsay, 91405, France
- Institute of Plant Sciences Paris-Saclay IPS2, Paris Diderot, Sorbonne Paris-Cité, Bâtiment 630, Orsay, 91405, France
| | - Benjamin Gourion
- Institute of Plant Sciences Paris Saclay IPS2, CNRS, INRA, Université Paris-Sud, Université Evry, Université Paris-Saclay, Batiment 630, Orsay, 91405, France
- Institute of Plant Sciences Paris-Saclay IPS2, Paris Diderot, Sorbonne Paris-Cité, Bâtiment 630, Orsay, 91405, France
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29
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Gupta R, Min CW, Kramer K, Agrawal GK, Rakwal R, Park KH, Wang Y, Finkemeier I, Kim ST. A Multi-Omics Analysis of Glycine max Leaves Reveals Alteration in Flavonoid and Isoflavonoid Metabolism Upon Ethylene and Abscisic Acid Treatment. Proteomics 2018; 18:e1700366. [PMID: 29457974 DOI: 10.1002/pmic.201700366] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 01/11/2018] [Indexed: 11/06/2022]
Abstract
Phytohormones are central to plant growth and development. Despite the advancement in our knowledge of hormone signaling, downstream targets, and their interactions upon hormones action remain largely fragmented, especially at the protein and metabolite levels. With an aim to get new insight into the effects of two hormones, ethylene (ET) and abscisic acid (ABA), this study utilizes an integrated proteomics and metabolomics approach to investigate their individual and combined (ABA+ET) signaling in soybean leaves. Targeting low-abundance proteins, our previously established protamine sulfate precipitation method was applied, followed by label-free quantification of identified proteins. A total of 4129 unique protein groups including 1083 differentially modulated in one (individual) or other (combined) treatments were discerned. Functional annotation of the identified proteins showed an increased abundance of proteins related to the flavonoid and isoflavonoid biosynthesis and MAPK signaling pathway in response to ET treatment. HPLC analysis showed an accumulation of isoflavones (genistin, daidzein, and genistein) upon ET treatment, in agreement with the proteomics results. A metabolome analysis assigned 79 metabolites and further confirmed the accumulation of flavonoids and isoflavonoids in response to ET. A potential cross-talk between ET and MAPK signaling, leading to the accumulation of flavonoids and isoflavonoids in soybean leaves is suggested.
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Affiliation(s)
- Ravi Gupta
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang, Republic of Korea
| | - Cheol Woo Min
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang, Republic of Korea
| | - Katharina Kramer
- Plant Proteomics Group, Max Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Ganesh Kumar Agrawal
- Research Laboratory for Biotechnology and Biochemistry, Kathmandu, Nepal
- GRADE Academy Private Limited, Birgunj, Nepal
| | - Randeep Rakwal
- Research Laboratory for Biotechnology and Biochemistry, Kathmandu, Nepal
- GRADE Academy Private Limited, Birgunj, Nepal
- Faculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Japan
- Global Research Center for Innovative Life Science, Peptide Drug Innovation, School of Pharmacy and Pharmaceutical Sciences, Hoshi University, Tokyo, Japan
| | - Ki-Hun Park
- Plant Molecular Biology and Biotechnology Research Center, Gyeongsang National University, Jinju, Republic of Korea
| | - Yiming Wang
- Department of Plant Microbe Interactions, Max Planck Institute for Plant Breeding Research, Cologne, Germany
| | - Iris Finkemeier
- Plant Proteomics Group, Max Planck Institute for Plant Breeding Research, Cologne, Germany
- Institute of Plant Biology and Biotechnology, University of Muenster, Muenster, Germany
| | - Sun Tae Kim
- Department of Plant Bioscience, Life and Industry Convergence Research Institute, Pusan National University, Miryang, Republic of Korea
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30
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Plett JM, Martin FM. Know your enemy, embrace your friend: using omics to understand how plants respond differently to pathogenic and mutualistic microorganisms. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2018; 93:729-746. [PMID: 29265527 DOI: 10.1111/tpj.13802] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 12/04/2017] [Accepted: 12/07/2017] [Indexed: 05/21/2023]
Abstract
Microorganisms, or 'microbes', have formed intimate associations with plants throughout the length of their evolutionary history. In extant plant systems microbes still remain an integral part of the ecological landscape, impacting plant health, productivity and long-term fitness. Therefore, to properly understand the genetic wiring of plants, we must first determine what perception systems plants have evolved to parse beneficial from commensal from pathogenic microbes. In this review, we consider some of the most recent advances in how plants respond at the molecular level to different microbial lifestyles. Further, we cover some of the means by which microbes are able to manipulate plant signaling pathways through altered destructiveness and nutrient sinks, as well as the use of effector proteins and micro-RNAs (miRNAs). We conclude by highlighting some of the major questions still to be answered in the field of plant-microbe research, and suggest some of the key areas that are in greatest need of further research investment. The results of these proposed studies will have impacts in a wide range of plant research disciplines and will, ultimately, translate into stronger agronomic crops and forestry stock, with immune perception and response systems bred to foster beneficial microbial symbioses while repudiating pathogenic symbioses.
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Affiliation(s)
- Jonathan M Plett
- Hawkesbury Institute for the Environment, Western Sydney University, Richmond, NSW, 2753, Australia
| | - Francis M Martin
- Institut National de la Recherche Agronomique (INRA), Unité Mixte de Recherche, 1136 INRA-Université de Lorraine, Interactions Arbres/Microorganismes, Laboratoire d'excellence ARBRE, Centre INRA-Grand Est-Nancy, 54280, Champenoux, France
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