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Chang YL, Chang YC, Kurniawan A, Chang PC, Liou TY, Wang WD, Chuang HW. Employing Genomic Tools to Explore the Molecular Mechanisms behind the Enhancement of Plant Growth and Stress Resilience Facilitated by a Burkholderia Rhizobacterial Strain. Int J Mol Sci 2024; 25:6091. [PMID: 38892282 PMCID: PMC11172717 DOI: 10.3390/ijms25116091] [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: 04/30/2024] [Revised: 05/28/2024] [Accepted: 05/30/2024] [Indexed: 06/21/2024] Open
Abstract
The rhizobacterial strain BJ3 showed 16S rDNA sequence similarity to species within the Burkholderia genus. Its complete genome sequence revealed a 97% match with Burkholderia contaminans and uncovered gene clusters essential for plant-growth-promoting traits (PGPTs). These clusters include genes responsible for producing indole acetic acid (IAA), osmolytes, non-ribosomal peptides (NRPS), volatile organic compounds (VOCs), siderophores, lipopolysaccharides, hydrolytic enzymes, and spermidine. Additionally, the genome contains genes for nitrogen fixation and phosphate solubilization, as well as a gene encoding 1-aminocyclopropane-1-carboxylate (ACC) deaminase. The treatment with BJ3 enhanced root architecture, boosted vegetative growth, and accelerated early flowering in Arabidopsis. Treated seedlings also showed increased lignin production and antioxidant capabilities, as well as notably increased tolerance to water deficit and high salinity. An RNA-seq transcriptome analysis indicated that BJ3 treatment significantly activated genes related to immunity induction, hormone signaling, and vegetative growth. It specifically activated genes involved in the production of auxin, ethylene, and salicylic acid (SA), as well as genes involved in the synthesis of defense compounds like glucosinolates, camalexin, and terpenoids. The expression of AP2/ERF transcription factors was markedly increased. These findings highlight BJ3's potential to produce various bioactive metabolites and its ability to activate auxin, ethylene, and SA signaling in Arabidopsis, positioning it as a new Burkholderia strain that could significantly improve plant growth, stress resilience, and immune function.
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Affiliation(s)
- Yueh-Long Chang
- Department of Agricultural Biotechnology, National Chiayi University, Chiayi 600355, Taiwan
| | - Yu-Cheng Chang
- Department of Agricultural Biotechnology, National Chiayi University, Chiayi 600355, Taiwan
| | - Andi Kurniawan
- Department of Agricultural Biotechnology, National Chiayi University, Chiayi 600355, Taiwan
- Department of Agronomy, Brawijaya University, Malang 65145, Indonesia
| | - Po-Chun Chang
- Department of Agricultural Biotechnology, National Chiayi University, Chiayi 600355, Taiwan
| | - Ting-Yu Liou
- Department of Agricultural Biotechnology, National Chiayi University, Chiayi 600355, Taiwan
| | - Wen-Der Wang
- Department of Agricultural Biotechnology, National Chiayi University, Chiayi 600355, Taiwan
| | - Huey-wen Chuang
- Department of Agricultural Biotechnology, National Chiayi University, Chiayi 600355, Taiwan
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Yano N, Fedulov AV. Targeted DNA Demethylation: Vectors, Effectors and Perspectives. Biomedicines 2023; 11:biomedicines11051334. [PMID: 37239005 DOI: 10.3390/biomedicines11051334] [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: 03/28/2023] [Revised: 04/21/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
Aberrant DNA hypermethylation at regulatory cis-elements of particular genes is seen in a plethora of pathological conditions including cardiovascular, neurological, immunological, gastrointestinal and renal diseases, as well as in cancer, diabetes and others. Thus, approaches for experimental and therapeutic DNA demethylation have a great potential to demonstrate mechanistic importance, and even causality of epigenetic alterations, and may open novel avenues to epigenetic cures. However, existing methods based on DNA methyltransferase inhibitors that elicit genome-wide demethylation are not suitable for treatment of diseases with specific epimutations and provide a limited experimental value. Therefore, gene-specific epigenetic editing is a critical approach for epigenetic re-activation of silenced genes. Site-specific demethylation can be achieved by utilizing sequence-dependent DNA-binding molecules such as zinc finger protein array (ZFA), transcription activator-like effector (TALE) and clustered regularly interspaced short palindromic repeat-associated dead Cas9 (CRISPR/dCas9). Synthetic proteins, where these DNA-binding domains are fused with the DNA demethylases such as ten-eleven translocation (Tet) and thymine DNA glycosylase (TDG) enzymes, successfully induced or enhanced transcriptional responsiveness at targeted loci. However, a number of challenges, including the dependence on transgenesis for delivery of the fusion constructs, remain issues to be solved. In this review, we detail current and potential approaches to gene-specific DNA demethylation as a novel epigenetic editing-based therapeutic strategy.
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Affiliation(s)
- Naohiro Yano
- Department of Surgery, Rhode Island Hospital, Alpert Medical School of Brown University, 593 Eddy Street, Providence, RI 02903, USA
| | - Alexey V Fedulov
- Department of Surgery, Rhode Island Hospital, Alpert Medical School of Brown University, 593 Eddy Street, Providence, RI 02903, USA
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Mijailovic N, Nesler A, Perazzolli M, Aït Barka E, Aziz A. Rare Sugars: Recent Advances and Their Potential Role in Sustainable Crop Protection. Molecules 2021; 26:molecules26061720. [PMID: 33808719 PMCID: PMC8003523 DOI: 10.3390/molecules26061720] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/15/2021] [Accepted: 03/16/2021] [Indexed: 02/06/2023] Open
Abstract
Rare sugars are monosaccharides with a limited availability in the nature and almost unknown biological functions. The use of industrial enzymatic and microbial processes greatly reduced their production costs, making research on these molecules more accessible. Since then, the number of studies on their medical/clinical applications grew and rare sugars emerged as potential candidates to replace conventional sugars in human nutrition thanks to their beneficial health effects. More recently, the potential use of rare sugars in agriculture was also highlighted. However, overviews and critical evaluations on this topic are missing. This review aims to provide the current knowledge about the effects of rare sugars on the organisms of the farming ecosystem, with an emphasis on their mode of action and practical use as an innovative tool for sustainable agriculture. Some rare sugars can impact the plant growth and immune responses by affecting metabolic homeostasis and the hormonal signaling pathways. These properties could be used for the development of new herbicides, plant growth regulators and resistance inducers. Other rare sugars also showed antinutritional properties on some phytopathogens and biocidal activity against some plant pests, highlighting their promising potential for the development of new sustainable pesticides. Their low risk for human health also makes them safe and ecofriendly alternatives to agrochemicals.
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Affiliation(s)
- Nikola Mijailovic
- Induced Resistance and Plant Bioprotection, USC RIBP 1488, University of Reims, UFR Sciences, CEDEX 02, 51687 Reims, France; (N.M.); (E.A.B.)
- Bi-PA nv, Londerzee l1840, Belgium;
| | | | - Michele Perazzolli
- Department of Sustainable Agro-Ecosystems and Bioresources, Research and Innovation Centre, Fondazione Edmund Mach, 38010 San Michele all’Adige, Italy;
- Center Agriculture Food Environment (C3A), University of Trento, 38098 San Michele all’Adige, Italy
| | - Essaid Aït Barka
- Induced Resistance and Plant Bioprotection, USC RIBP 1488, University of Reims, UFR Sciences, CEDEX 02, 51687 Reims, France; (N.M.); (E.A.B.)
| | - Aziz Aziz
- Induced Resistance and Plant Bioprotection, USC RIBP 1488, University of Reims, UFR Sciences, CEDEX 02, 51687 Reims, France; (N.M.); (E.A.B.)
- Correspondence: ; Tel.: +33-326-918-525
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Zhai Z, Chen A, Zhou H, Zhang D, Du X, Liu Q, Wu X, Cheng J, Chen L, Hu F, Liu Y, Su P. Structural characterization and functional activity of an exopolysaccharide secreted by Rhodopseudomonas palustris GJ-22. Int J Biol Macromol 2020; 167:160-168. [PMID: 33249155 DOI: 10.1016/j.ijbiomac.2020.11.165] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 11/17/2020] [Accepted: 11/23/2020] [Indexed: 10/22/2022]
Abstract
One water exopolysaccharide, designated G-EPS, was secreted by Rhodopseudomonas palustris GJ-22 culture media. The structure of G-EPS was characterized with HPGPC, GC-MS, methylation, 1D and 2D NMR, along with UV and FT-IR spectrum. The G-EPS molecular weight was 10.026 kilodalton, and is composed of D-mannose (92.8%) and d-glucose (7.2%). The purified G-EPS promoted plant growth and induced systemic resistance against TMV in Nicotiana benthamiana. These results suggested that G-EPS is an important active component of the bio-control capacity of GJ-22.
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Affiliation(s)
- Zhongying Zhai
- Longping Branch, Graduate School of Hunan University, Changsha 410125, China
| | - Ang Chen
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Hanmei Zhou
- Longping Branch, Graduate School of Hunan University, Changsha 410125, China
| | - Deyong Zhang
- Longping Branch, Graduate School of Hunan University, Changsha 410125, China; Hunan Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Xiaohua Du
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Qing Liu
- Agricultural and Rural Bureau of Changsha County, Changsha 410100, China
| | - Xiyang Wu
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Ju'e Cheng
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China
| | - Lijie Chen
- Longping Branch, Graduate School of Hunan University, Changsha 410125, China
| | - Fang Hu
- Ecological Environment Testing Center of Changsha, Changsha 410001, China
| | - Yong Liu
- Longping Branch, Graduate School of Hunan University, Changsha 410125, China; Hunan Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China.
| | - Pin Su
- Hunan Plant Protection Institute, Hunan Academy of Agricultural Sciences, Changsha 410125, China.
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Lavanya SN, Udayashankar AC, Raj SN, Mohan CD, Gupta VK, Tarasatyavati C, Srivastava R, Nayaka SC. Lipopolysaccharide-induced priming enhances NO-mediated activation of defense responses in pearl millet challenged with Sclerospora graminicola. 3 Biotech 2018; 8:475. [PMID: 30456009 PMCID: PMC6226417 DOI: 10.1007/s13205-018-1501-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 11/01/2018] [Indexed: 01/13/2023] Open
Abstract
Lipopolysaccharide (LPS) elicitors isolated from Pseudomonas fluorescens UOM SAR 14 effectively induced systemic and durable resistance against pearl millet downy mildew disease caused by the oomycete Sclerospora graminicola. Rapid and increased callose deposition and H2O2 accumulation were evidenced in downy mildew susceptible seeds pre-treated with LPS (SLPS) in comparison with the control seedlings, which also correlated with expression of various other defense responses. Biochemical analysis of enzymes and quantitative real-time polymerase chain reaction data suggested that LPS protects pearl millet against downy mildew through the activation of plant defense mechanisms such as generation of nitric oxide (NO), increased expression, and activities of defense enzymes and proteins. Elevation of NO concentrations was shown to be essential for LPS-mediated defense manifestation in pearl millet and had an impact on the other downstream defense responses like enhanced activation of enzymes and pathogen-related (PR) proteins. Temporal expression analysis of defense enzymes and PR-proteins in SLPS seedlings challenged with the downy mildew pathogen revealed that the activity and expression of peroxidase, phenylalanine ammonia lyase, and the PR-proteins (PR-1 and PR-5) were significantly enhanced compared to untreated control. Higher gene expression and protein activities of hydroxyproline-rich glycoproteins (HRGPs) were observed in SLPS seedlings which were similar to that of the resistant check. Collectively, our results suggest that, in pearl millet-downy mildew interaction, LPS pre-treatment affects defense signaling through the central regulator NO which triggers the activities of PAL, POX, PR-1, PR-5, and HRGPs.
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Affiliation(s)
- S. N. Lavanya
- Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysore, 570006 India
| | - A. C. Udayashankar
- Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysore, 570006 India
| | - S. Niranjan Raj
- Department of Studies in Microbiology, Karnataka State Open University, Mukthagangotri, Mysore, 570006 India
| | | | - V. K. Gupta
- ERA Chair of Green Chemistry, Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Tallinn, Estonia
| | - C. Tarasatyavati
- All India Coordinated Research Project on Pearl Millet, Indian Council of Agricultural Research, Mandor, Jodhpur, Rajasthan 342304 India
| | - R. Srivastava
- International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru, Telangana 502324 India
| | - S. Chandra Nayaka
- Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysore, 570006 India
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Jiang CH, Fan ZH, Xie P, Guo JH. Bacillus cereus AR156 Extracellular Polysaccharides Served as a Novel Micro-associated Molecular Pattern to Induced Systemic Immunity to Pst DC3000 in Arabidopsis. Front Microbiol 2016; 7:664. [PMID: 27242694 PMCID: PMC4876362 DOI: 10.3389/fmicb.2016.00664] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Accepted: 04/21/2016] [Indexed: 01/30/2023] Open
Abstract
Non-host resistance (NHR) is a broad-spectrum plant defense. Upon colonizing on the surface on the root or leaves of non-host species, pathogens initial encounter preform and induce defense response in plant, such as induced hypersensitive response, PAMPs triggered immunity (PTI), and effector triggered immunity (ETI). The ability of plants to develop an induced systemic response (ISR) in reaction to the colonization by non-pathogenic rhizobacterium depends on interactions between host plants and the colonizing rhizobacterium, and the ISR also can be defined as a NHR. However, how the colonization signal is and how systemic resistance to pathogens is developed is still unclear. In this study, we demonstrated that the extracellular polysaccharides (EPSs) of Bacillus cereus AR156 could act as novel microbe-associated molecular patterns (MAMPs) and function in the early perception status of the ISR of B. cereus AR156. The results revealed that B. cereus AR156 EPS could induce systemic resistance to Pst DC3000 in Arabidopsis. Cellular defense response markers such as hydrogen peroxide accumulation, callose deposition, and defense-associated enzyme were induced upon challenge inoculation in the leaves primed by EPS. Moreover, the defense-related genes PR1, PR2, and PR5 and mitogen-activated kinases (MAPK) cascade marker gene MPK6 were concurrently expressed in the leaves of EPS-treated plants and induced higher resistance to Pst DC3000 in Col-0 than that in the jar1 or etr1 mutants. The protection was absent in the NahG transgenic plants and npr1 mutant, suggesting an activation of the salicylic acid (SA)- and the MAPK-dependent signaling pathways with NPR1-dependent by B. cereus AR156 EPS. In conclusion, B. cereus AR156 EPS play an important role in MAMP perception during the process of rhizobacteria-triggered NHR. This study is the first to illustrate how AR156 induces systemic resistance to Pst DC3000 in Arabidopsis. It also provides the first explanation of how plants perceive colonization of non-pathogenic bacteria and how rhizobacteria trigger ISR to plant pathogens.
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Affiliation(s)
- Chun-Hao Jiang
- Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Department of Plant Pathology, College of Plant Protection, Ministry of Agriculture, Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing Agricultural University Nanjing, China
| | - Zhi-Hang Fan
- Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Department of Plant Pathology, College of Plant Protection, Ministry of Agriculture, Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing Agricultural University Nanjing, China
| | - Ping Xie
- Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Department of Plant Pathology, College of Plant Protection, Ministry of Agriculture, Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing Agricultural University Nanjing, China
| | - Jian-Hua Guo
- Key Laboratory of Monitoring and Management of Crop Diseases and Pest Insects, Department of Plant Pathology, College of Plant Protection, Ministry of Agriculture, Engineering Center of Bioresource Pesticide in Jiangsu Province, Nanjing Agricultural University Nanjing, China
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Zhang Z, Zhao J, Ding L, Zou L, Li Y, Chen G, Zhang T. Constitutive expression of a novel antimicrobial protein, Hcm1, confers resistance to both Verticillium and Fusarium wilts in cotton. Sci Rep 2016; 6:20773. [PMID: 26856318 PMCID: PMC4746735 DOI: 10.1038/srep20773] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 01/12/2016] [Indexed: 12/13/2022] Open
Abstract
Fusarium and Verticillium wilts, two of the most important diseases in cotton, pose serious threats to cotton production. Here we introduced a novel antimicrobial protein Hcm1, which comprised harpin protein from Xanthomonas oryzae pv. oryzicola (Xoc), and the chimeric protein, cecropin A-melittin, into cotton. The transgenic cotton lines with stable Hcm1 expression showed a higher resistance to Verticillium and Fusarium wilts both in greenhouse and field trials compared to controls. Hcm1 enabled the transgenic cotton to produced a microscopic hypersensitive response (micro-HR), reactive oxygen species (ROS) burst, and caused the activation of pathogenesis-related (PR) genes in response to biotic stress, indicating that the transgenic cotton was in a primed state and ready to protect the host from pathogenic infection. Simultaneously, Hcm1 protein inhibited the growth of Verticillium dahliae (V. dahliae) and Fusarium oxysporum (F. oxysporum) in vitro. The spread of fungal biomass was also inhibited in vivo since the V. dahliae biomass was decreased dramatically in transgenic cotton plants after inoculation with V. dahliae. Together, these results demonstrate that Hcm1 could activate innate immunity and inhibit the growth of V. dahliae and F. oxysporum to protect cotton against Verticillium and Fusarium wilts.
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Affiliation(s)
- Zhiyuan Zhang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement, Cotton Research Institute, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Jun Zhao
- National Key Laboratory of Crop Genetics & Germplasm Enhancement, Cotton Research Institute, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Lingyun Ding
- National Key Laboratory of Crop Genetics & Germplasm Enhancement, Cotton Research Institute, Nanjing Agricultural University, Nanjing 210095, P. R. China
| | - Lifang Zou
- School of Agriculture and Biology, Shanghai Jiao Tong University/Key Laboratory of Urban (South) by Ministry of Agriculture, Shanghai, China
| | - Yurong Li
- School of Agriculture and Biology, Shanghai Jiao Tong University/Key Laboratory of Urban (South) by Ministry of Agriculture, Shanghai, China
| | - Gongyou Chen
- School of Agriculture and Biology, Shanghai Jiao Tong University/Key Laboratory of Urban (South) by Ministry of Agriculture, Shanghai, China
| | - Tianzhen Zhang
- National Key Laboratory of Crop Genetics & Germplasm Enhancement, Cotton Research Institute, Nanjing Agricultural University, Nanjing 210095, P. R. China
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Comparative metabolomic analysis highlights the involvement of sugars and glycerol in melatonin-mediated innate immunity against bacterial pathogen in Arabidopsis. Sci Rep 2015; 5:15815. [PMID: 26508076 PMCID: PMC4623600 DOI: 10.1038/srep15815] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2015] [Accepted: 10/01/2015] [Indexed: 11/08/2022] Open
Abstract
Melatonin is an important secondary messenger in plant innate immunity against the bacterial pathogen Pseudomonas syringe pv. tomato (Pst) DC3000 in the salicylic acid (SA)- and nitric oxide (NO)-dependent pathway. However, the metabolic homeostasis in melatonin-mediated innate immunity is unknown. In this study, comparative metabolomic analysis found that the endogenous levels of both soluble sugars (fructose, glucose, melibose, sucrose, maltose, galatose, tagatofuranose and turanose) and glycerol were commonly increased after both melatonin treatment and Pst DC3000 infection in Arabidopsis. Further studies showed that exogenous pre-treatment with fructose, glucose, sucrose, or glycerol increased innate immunity against Pst DC3000 infection in wild type (Col-0) Arabidopsis plants, but largely alleviated their effects on the innate immunity in SA-deficient NahG plants and NO-deficient mutants. This indicated that SA and NO are also essential for sugars and glycerol-mediated disease resistance. Moreover, exogenous fructose, glucose, sucrose and glycerol pre-treatments remarkably increased endogenous NO level, but had no significant effect on the endogenous melatonin level. Taken together, this study highlights the involvement of sugars and glycerol in melatonin-mediated innate immunity against bacterial pathogen in SA and NO-dependent pathway in Arabidopsis.
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Shi H, Chen Y, Tan DX, Reiter RJ, Chan Z, He C. Melatonin induces nitric oxide and the potential mechanisms relate to innate immunity against bacterial pathogen infection in Arabidopsis. J Pineal Res 2015; 59:102-8. [PMID: 25960153 DOI: 10.1111/jpi.12244] [Citation(s) in RCA: 151] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Accepted: 05/05/2015] [Indexed: 12/17/2022]
Abstract
Melatonin (N-acetyl-5-methoxytryptamine) is a naturally occurring small molecule, serving as important secondary messenger in the response of plants to various biotic and abiotic stresses. However, the interactions between melatonin and other important molecules in the plant stress response, especially in plant immunity, are largely unknown. In this study, we found that both melatonin and nitric oxide (NO) levels in Arabidopsis leaves were significantly induced by bacterial pathogen (Pst DC3000) infection. The elevated NO production was caused by melatonin as melatonin application enhanced endogenous NO level with great efficacy. Moreover, both melatonin and NO conferred improved disease resistance against Pseudomonas syringe pv. tomato (Pst) DC3000 infection in Arabidopsis. NO scavenger significantly suppressed the rise of NO which was induced by exogenous application of melatonin. As a result, the beneficial effects of melatonin on the expression of salicylic acid (SA)-related genes and disease resistance against bacterial pathogen infection were jeopardized by use of a NO scavenger. Consistently, melatonin application significantly lost its effect on the innate immunity against P. syringe pv. tomato (Pst) DC3000 infection in NO-deficient mutants of Arabidopsis. The results indicate that melatonin-induced NO production is responsible for innate immunity response of Arabidopsis against Pst DC3000 infection.
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Affiliation(s)
- Haitao Shi
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Agriculture, Hainan University, Haikou, China
| | - Yinhua Chen
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Agriculture, Hainan University, Haikou, China
| | - Dun-Xian Tan
- Department of Cellular and Structural Biology, The University of Texas Health Science Center, San Antonio, TX, USA
| | - Russel J Reiter
- Department of Cellular and Structural Biology, The University of Texas Health Science Center, San Antonio, TX, USA
| | - Zhulong Chan
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, China
| | - Chaozu He
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Agriculture, Hainan University, Haikou, China
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Borges AA, Jiménez-Arias D, Expósito-Rodríguez M, Sandalio LM, Pérez JA. Priming crops against biotic and abiotic stresses: MSB as a tool for studying mechanisms. FRONTIERS IN PLANT SCIENCE 2014; 5:642. [PMID: 25429297 PMCID: PMC4228831 DOI: 10.3389/fpls.2014.00642] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Accepted: 10/29/2014] [Indexed: 05/21/2023]
Affiliation(s)
- Andrés A. Borges
- Departamento de Agrobiología, Instituto de Productos Naturales y Agrobiología – Consejo Superior de Investigaciones Científicas (CSIC)La Laguna, Spain
- *Correspondence:
| | - David Jiménez-Arias
- Departamento de Agrobiología, Instituto de Productos Naturales y Agrobiología – Consejo Superior de Investigaciones Científicas (CSIC)La Laguna, Spain
| | | | - Luisa M. Sandalio
- Departamento de Bioquímica, Biología Celular y Molecular de Plantas, Estación Experimental del Zaidín – Consejo Superior de Investigaciones Científicas (CSIC)Granada, Spain
| | - José A. Pérez
- Área de Genética, Instituto Universitario de Enfermedades Tropicales y Salud Pública, Universidad de La LagunaLa Laguna, Spain
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Jeandroz S, Lamotte O, Astier J, Rasul S, Trapet P, Besson-Bard A, Bourque S, Nicolas-Francès V, Ma W, Berkowitz GA, Wendehenne D. There's more to the picture than meets the eye: nitric oxide cross talk with Ca2+ signaling. PLANT PHYSIOLOGY 2013; 163:459-70. [PMID: 23749853 PMCID: PMC3793028 DOI: 10.1104/pp.113.220624] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2013] [Accepted: 06/07/2013] [Indexed: 05/18/2023]
Abstract
Calcium and nitric oxide (NO) are two important biological messengers. Increasing evidence indicates that Ca(2+) and NO work together in mediating responses to pathogenic microorganisms and microbe-associated molecular patterns. Ca(2+) fluxes were recognized to account for NO production, whereas evidence gathered from a number of studies highlights that NO is one of the key messengers mediating Ca(2+) signaling. Here, we present a concise description of the current understanding of the molecular mechanisms underlying the cross talk between Ca(2+) and NO in plant cells exposed to biotic stress. Particular attention will be given to the involvement of cyclic nucleotide-gated ion channels and Ca(2+) sensors. Notably, we provide new evidence that calmodulin might be regulated at the posttranslational level by NO through S-nitrosylation. Furthermore, we report original transcriptomic data showing that NO produced in response to oligogalacturonide regulates the expression of genes related to Ca(2+) signaling. Deeper insight into the molecules involved in the interplay between Ca(2+) and NO not only permits a better characterization of the Ca(2+) signaling system but also allows us to further understand how plants respond to pathogen attack.
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