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Berger A, Pérez-Valera E, Blouin M, Breuil MC, Butterbach-Bahl K, Dannenmann M, Besson-Bard A, Jeandroz S, Valls J, Spor A, Subramaniam L, Pétriacq P, Wendehenne D, Philippot L. Microbiota responses to mutations affecting NO homeostasis in Arabidopsis thaliana. THE NEW PHYTOLOGIST 2024. [PMID: 39329426 DOI: 10.1111/nph.20159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 08/27/2024] [Indexed: 09/28/2024]
Abstract
Interactions between plants and microorganisms are pivotal for plant growth and productivity. Several plant molecular mechanisms that shape these microbial communities have been identified. However, the importance of nitric oxide (NO) produced by plants for the associated microbiota remains elusive. Using Arabidopsis thaliana isogenic mutants overproducing NO (nox1, NO overexpression) or down-producing NO (i.e. nia1nia2 impaired in the expression of both nitrate reductases NR1/NIA1 and NR2/NIA2; the 35s::GSNOR1 line overexpressing nitrosoglutathione reductase (GSNOR) and 35s::AHB1 line overexpressing haemoglobin 1 (AHB1)), we investigated how altered NO homeostasis affects microbial communities in the rhizosphere and in the roots, soil microbial activity and soil metabolites. We show that the rhizosphere microbiome was affected by the mutant genotypes, with the nox1 and nia1nia2 mutants causing opposite shifts in bacterial and fungal communities compared with the wild-type (WT) Col-0 in the rhizosphere and roots, respectively. These mutants also exhibited distinctive soil metabolite profiles than those from the other genotypes while soil microbial activity did not differ between the mutants and the WT Col-0. Our findings support our hypothesis that changes in NO production by plants can influence the plant microbiome composition with differential effects between fungal and bacterial communities.
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Affiliation(s)
- Antoine Berger
- Université de Bourgogne, INRAE, Institut Agro Dijon, Agroécologie, 21000, Dijon, France
| | - Eduardo Pérez-Valera
- Université de Bourgogne, INRAE, Institut Agro Dijon, Agroécologie, 21000, Dijon, France
| | - Manuel Blouin
- Université de Bourgogne, INRAE, Institut Agro Dijon, Agroécologie, 21000, Dijon, France
| | | | - Klaus Butterbach-Bahl
- Institute of Meteorology and Climate Research, Atmospheric Environmental Research (IMK-IFU), Karlsruhe Institute of Technology, 82467, Garmisch-Partenkirchen, Germany
- Land-CRAFT, Department of Agroecology, University of Aarhus, 8000, Aarhus, Denmark
| | - Michael Dannenmann
- Institute of Meteorology and Climate Research, Atmospheric Environmental Research (IMK-IFU), Karlsruhe Institute of Technology, 82467, Garmisch-Partenkirchen, Germany
| | - Angélique Besson-Bard
- Université de Bourgogne, INRAE, Institut Agro Dijon, Agroécologie, 21000, Dijon, France
| | - Sylvain Jeandroz
- Université de Bourgogne, INRAE, Institut Agro Dijon, Agroécologie, 21000, Dijon, France
| | - Josep Valls
- Univ. Bordeaux, INRAE, UMR 1366 OENO - Axe Molécules À Intérêt Biologique, ISVV, 33140, Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France
| | - Aymé Spor
- Université de Bourgogne, INRAE, Institut Agro Dijon, Agroécologie, 21000, Dijon, France
| | - Logapragasan Subramaniam
- Institute of Meteorology and Climate Research, Atmospheric Environmental Research (IMK-IFU), Karlsruhe Institute of Technology, 82467, Garmisch-Partenkirchen, Germany
| | - Pierre Pétriacq
- Univ. Bordeaux, INRAE, UMR 1366 OENO - Axe Molécules À Intérêt Biologique, ISVV, 33140, Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140, Villenave d'Ornon, France
| | - David Wendehenne
- Université de Bourgogne, INRAE, Institut Agro Dijon, Agroécologie, 21000, Dijon, France
| | - Laurent Philippot
- Université de Bourgogne, INRAE, Institut Agro Dijon, Agroécologie, 21000, Dijon, France
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2
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Noctor G, Cohen M, Trémulot L, Châtel-Innocenti G, Van Breusegem F, Mhamdi A. Glutathione: a key modulator of plant defence and metabolism through multiple mechanisms. JOURNAL OF EXPERIMENTAL BOTANY 2024; 75:4549-4572. [PMID: 38676714 DOI: 10.1093/jxb/erae194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Accepted: 04/25/2024] [Indexed: 04/29/2024]
Abstract
Redox reactions are fundamental to energy conversion in living cells, and also determine and tune responses to the environment. Within this context, the tripeptide glutathione plays numerous roles. As an important antioxidant, glutathione confers redox stability on the cell and also acts as an interface between signalling pathways and metabolic reactions that fuel growth and development. It also contributes to the assembly of cell components, biosynthesis of sulfur-containing metabolites, inactivation of potentially deleterious compounds, and control of hormonal signalling intensity. The multiplicity of these roles probably explains why glutathione status has been implicated in influencing plant responses to many different conditions. In particular, there is now a considerable body of evidence showing that glutathione is a crucial player in governing the outcome of biotic stresses. This review provides an overview of glutathione synthesis, transport, degradation, and redox turnover in plants. It examines the expression of genes associated with these processes during pathogen challenge and related conditions, and considers the diversity of mechanisms by which glutathione can influence protein function and gene expression.
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Affiliation(s)
- Graham Noctor
- Institut des Sciences des Plantes de Paris-Saclay, Unité Mixte de Recherche 8618 Centre National de la Recherche Scientifique, Université de Paris-Sud, 91405 Orsay cedex, France
- Institut Universitaire de France (IUF), France
| | - Mathias Cohen
- Institut des Sciences des Plantes de Paris-Saclay, Unité Mixte de Recherche 8618 Centre National de la Recherche Scientifique, Université de Paris-Sud, 91405 Orsay cedex, France
- Center for Plant Systems Biology, VIB, 9052 Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
| | - Lug Trémulot
- Institut des Sciences des Plantes de Paris-Saclay, Unité Mixte de Recherche 8618 Centre National de la Recherche Scientifique, Université de Paris-Sud, 91405 Orsay cedex, France
| | - Gilles Châtel-Innocenti
- Institut des Sciences des Plantes de Paris-Saclay, Unité Mixte de Recherche 8618 Centre National de la Recherche Scientifique, Université de Paris-Sud, 91405 Orsay cedex, France
| | - Frank Van Breusegem
- Center for Plant Systems Biology, VIB, 9052 Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
| | - Amna Mhamdi
- Center for Plant Systems Biology, VIB, 9052 Ghent, Belgium
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052 Ghent, Belgium
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3
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Yu H, Zhang J, Fan J, Jia W, Lv Y, Pan H, Zhang X. Infection-specific transcriptional patterns of the maize pathogen Cochliobolus heterostrophus unravel genes involved in asexual development and virulence. MOLECULAR PLANT PATHOLOGY 2024; 25:e13413. [PMID: 38279855 PMCID: PMC10775821 DOI: 10.1111/mpp.13413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 11/24/2023] [Accepted: 12/10/2023] [Indexed: 01/29/2024]
Abstract
Southern corn leaf blight (SCLB) caused by Cochliobolus heterostrophus is a destructive disease that threatens global maize (Zea mays) production. Despite many studies being conducted, very little is known about molecular processes employed by the pathogen during infection. There is a need to understand the fungal arms strategy and identify novel functional genes as targets for fungicide development. Transcriptome analysis based on RNA sequencing was carried out across conidia germination and host infection by C. heterostrophus. The present study revealed major changes in C. heterostrophus gene expression during host infection. Several differentially expressed genes (DEGs) induced during C. heterostrophus infection could be involved in the biosynthesis of secondary metabolites, peroxisome, energy metabolism, amino acid degradation and oxidative phosphorylation. In addition, histone acetyltransferase, secreted proteins, peroxisomal proteins, NADPH oxidase and transcription factors were selected for further functional validation. Here, we demonstrated that histone acetyltransferases (Hat2 and Rtt109), secreted proteins (Cel61A and Mep1), peroxisomal proteins (Pex11A and Pex14), NADPH oxidases (NoxA, NoxD and NoxR) and transcription factors (Crz1 and MtfA) play essential roles in C. heterostrophus conidiation, stress adaption and virulence. Taken together, our study revealed major changes in gene expression associated with C. heterostrophus infection and identified a diverse repertoire of genes critical for successful infection.
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Affiliation(s)
- Huilin Yu
- College of Plant ScienceJilin UniversityChangchunChina
| | - Jiyue Zhang
- College of Plant ScienceJilin UniversityChangchunChina
| | - Jinyu Fan
- College of Plant ScienceJilin UniversityChangchunChina
| | - Wantong Jia
- College of Plant ScienceJilin UniversityChangchunChina
| | - Yanan Lv
- College of Plant ScienceJilin UniversityChangchunChina
| | - Hongyu Pan
- College of Plant ScienceJilin UniversityChangchunChina
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4
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Song XW, Yao Y, Yu PC, Zhang W, Liu WF, Wang LY, Zhao K, Lu JC, Meng XC. Sodium nitroprusside improved the quality of Radix Saposhnikoviae through constructed physiological response under ecological stress. Sci Rep 2023; 13:15823. [PMID: 37740027 PMCID: PMC10516912 DOI: 10.1038/s41598-023-43153-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 09/20/2023] [Indexed: 09/24/2023] Open
Abstract
The ecological significance of secondary metabolites is to improve the adaptive ability of plants. Secondary metabolites, usually medicinal ingredients, are triggered by unsuitable environment, thus the quality of medicinal materials under adversity being better. The quality of the cultivated was heavily declined due to its good conditions. Radix Saposhnikoviae, the dried root of Saposhnikovia divaricata (Turcz.) Schischk., is one of the most common botanicals in Asian countries, now basically comes from cultivation, resulting in the market price being only 1/10 to 1/3 of its wild counterpart, so improving the quality of cultivated Radix Saposhnikoviae is of urgency. Nitric oxide (NO) plays a crucial role in generating reactive oxygen species and modifying the secondary metabolism of plants. This study aims to enhance the quality of cultivated Radix Saposhnikoviae by supplementing exogenous NO. To achieve this, sodium nitroprusside (SNP) was utilized as an NO provider and applied to fresh roots of S. divaricata at concentrations of 0.03, 0.1, 0.5, and 1.0 mmol/L. This study measured parameters including the activities of antioxidant enzymes, secondary metabolite synthesis enzymes such as phenylalanine ammonia-lyase (PAL), 1-aminocyclopropane-1-carboxylic acid (ACC), and chalcone synthase (CHS), as well as the contents of NO, superoxide radicals (O2·-), hydrogen peroxide (H2O2), malondialdehyde (MDA), and four secondary metabolites. The quality of Radix Saposhnikoviae was evaluated with antipyretic, analgesic, anti-inflammatory effects, and inflammatory factors. As a result, the NO contents in the fresh roots were significantly increased under SNP, which led to a significant increase of O2·-, H2O2, and MDA. The activities of important antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD), were found to increase as well, with their peak levels observed on the 2nd and 3rd days. PAL, ACC, and CHS activities were also significantly enhanced, resulting in the increased secondary metabolite contents of Radix saposhnikoviae in all groups, especially the 0.5 mmol/L SNP. The four active ingredients, prim-O-glucosylcimifugin, cimifugin, 4'-O-β-D-glucosyl-5-O-methylvisamminol, and sec-O-glucosylhamaudol, increased by 88.3%,325.0%, 55.4%, and 283.8%, respectively, on the 3rd day. The pharmaceutical effects of Radix Saposhnikoviae under 0.5 mmol/L SNP were significantly enhanced. Exogenous SNP can induce the physiological response of S. divaricata under adverse conditions and significantly improve the quality of Radix Saposhnikoviae.
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Affiliation(s)
- Xiao-Wen Song
- College of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Yao Yao
- College of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Peng-Cheng Yu
- College of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Wei Zhang
- College of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Wen-Fei Liu
- College of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Li-Yang Wang
- College of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Kai Zhao
- College of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, 150040, China
| | - Jin-Cai Lu
- Shenyang Pharmaceutical University, Shenyang, 110016, China.
| | - Xiang-Cai Meng
- College of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, 150040, China.
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5
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Romera FJ, García MJ, Lucena C, Angulo M, Pérez-Vicente R. NO Is Not the Same as GSNO in the Regulation of Fe Deficiency Responses by Dicot Plants. Int J Mol Sci 2023; 24:12617. [PMID: 37628796 PMCID: PMC10454737 DOI: 10.3390/ijms241612617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/27/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023] Open
Abstract
Iron (Fe) is abundant in soils but with a poor availability for plants, especially in calcareous soils. To favor its acquisition, plants develop morphological and physiological responses, mainly in their roots, known as Fe deficiency responses. In dicot plants, the regulation of these responses is not totally known, but some hormones and signaling molecules, such as auxin, ethylene, glutathione (GSH), nitric oxide (NO) and S-nitrosoglutathione (GSNO), have been involved in their activation. Most of these substances, including auxin, ethylene, GSH and NO, increase their production in Fe-deficient roots while GSNO, derived from GSH and NO, decreases its content. This paradoxical result could be explained with the increased expression and activity in Fe-deficient roots of the GSNO reductase (GSNOR) enzyme, which decomposes GSNO to oxidized glutathione (GSSG) and NH3. The fact that NO content increases while GSNO decreases in Fe-deficient roots suggests that NO and GSNO do not play the same role in the regulation of Fe deficiency responses. This review is an update of the results supporting a role for NO, GSNO and GSNOR in the regulation of Fe deficiency responses. The possible roles of NO and GSNO are discussed by taking into account their mode of action through post-translational modifications, such as S-nitrosylation, and through their interactions with the hormones auxin and ethylene, directly related to the activation of morphological and physiological responses to Fe deficiency in dicot plants.
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Affiliation(s)
- Francisco Javier Romera
- Department of Agronomy (DAUCO María de Maeztu Unit of Excellence 2021–2023), Campus de Excelencia Internacional Agroalimentario, Universidad de Córdoba, 14071 Córdoba, Spain; (F.J.R.); (M.A.)
| | - María José García
- Department of Agronomy (DAUCO María de Maeztu Unit of Excellence 2021–2023), Campus de Excelencia Internacional Agroalimentario, Universidad de Córdoba, 14071 Córdoba, Spain; (F.J.R.); (M.A.)
| | - Carlos Lucena
- Department of Botany, Ecology and Plant Physiology, Campus de Excelencia Internacional Agroalimentario, Universidad de Córdoba, 14071 Córdoba, Spain; (C.L.); (R.P.-V.)
| | - Macarena Angulo
- Department of Agronomy (DAUCO María de Maeztu Unit of Excellence 2021–2023), Campus de Excelencia Internacional Agroalimentario, Universidad de Córdoba, 14071 Córdoba, Spain; (F.J.R.); (M.A.)
| | - Rafael Pérez-Vicente
- Department of Botany, Ecology and Plant Physiology, Campus de Excelencia Internacional Agroalimentario, Universidad de Córdoba, 14071 Córdoba, Spain; (C.L.); (R.P.-V.)
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6
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Zboińska M, Janeczko A, Kabała K. Involvement of NO in V-ATPase Regulation in Cucumber Roots under Control and Cadmium Stress Conditions. PLANTS (BASEL, SWITZERLAND) 2023; 12:2884. [PMID: 37571036 PMCID: PMC10420687 DOI: 10.3390/plants12152884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/04/2023] [Accepted: 08/05/2023] [Indexed: 08/13/2023]
Abstract
Nitric oxide (NO) is a signaling molecule that participates in plant adaptation to adverse environmental factors. This study aimed to clarify the role of NO in the regulation of vacuolar H+-ATPase (V-ATPase) in the roots of cucumber seedlings grown under control and Cd stress conditions. In addition, the relationship between NO and salicylic acid (SA), as well as their interrelations with hydrogen sulfide (H2S) and hydrogen peroxide (H2O2), have been verified. The effect of NO on V-ATPase was studied by analyzing two enzyme activities, the expression level of selected VHA genes and the protein level of selected VHA subunits in plants treated with a NO donor (sodium nitroprusside, SNP) and NO biosynthesis inhibitors (tungstate, WO42- and N-nitro-L-arginine methyl ester, L-NAME). Our results indicate that NO functions as a positive regulator of V-ATPase and that this regulation depends on NO generated by nitrate reductase and NOS-like activity. It was found that the mechanism of NO action is not related to changes in the gene expression or protein level of the V-ATPase subunits. The results suggest that in cucumber roots, NO signaling interacts with the SA pathway and, to a lesser extent, with two other known V-ATPase regulators, H2O2 and H2S.
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Affiliation(s)
- Magdalena Zboińska
- Department of Plant Molecular Physiology, Faculty of Biological Sciences, University of Wrocław, Kanonia 6/8, 50-328 Wrocław, Poland;
| | - Anna Janeczko
- The Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Niezapominajek 21, 30-239 Krakow, Poland;
| | - Katarzyna Kabała
- Department of Plant Molecular Physiology, Faculty of Biological Sciences, University of Wrocław, Kanonia 6/8, 50-328 Wrocław, Poland;
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Li F, Ma Y, Yi Y, Ren M, Li L, Chen Y, Li A, Han S, Tang H, Jia H, Wang X, Li J. Nitric oxide induces S-nitrosylation of CESA1 and CESA9 and increases cellulose content in Arabidopsis hypocotyls. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 196:1-9. [PMID: 36680948 DOI: 10.1016/j.plaphy.2023.01.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 12/05/2022] [Accepted: 01/16/2023] [Indexed: 06/17/2023]
Abstract
Nitric oxide (NO), a small signaling gas molecule, participates in several growth and developmental processes in plants. However, how NO regulates cell wall biosynthesis remains unclear. Here, we demonstrate a positive effect of NO on cellulose content that may be related to S-nitrosylation of cellulose synthase 1 (CESA1) and CESA9. Two S-nitrosylated cysteine (Cys) residues, Cys562 and Cys641, which are exposed on the surface of CESA1 and CESA9 and located in the cellulose synthase catalytic domain, were identified to be S-nitrosylated. Meanwhile, Cys641 was located on the binding surface of CESA1 and CESA9, and Cys562 was very close to the binding surface. Cellulose synthase complexes (CSCs) dynamics are closely associated with cellulose content. S-nitrosylation of CESA1 and CESA9 improved particles mobility and thus increased the accumulation of cellulose in Arabidopsis hypocotyl cells. An increase in hemicellulose content as well as an alteration in pectin content facilitated cell wall extension and contributed to cell growth, finally promoting elongation of Arabidopsis hypocotyls. Overall, our work provides a path to investigate the way NO affects the cellulose content of plants.
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Affiliation(s)
- Fali Li
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Ying Ma
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Yuying Yi
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Meijuan Ren
- Life Science Research Core Services, Division of Laboratory Safety and Services, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Luqi Li
- Life Science Research Core Services, Division of Laboratory Safety and Services, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Ying Chen
- WuXi AppTec, Shanghai, 200131, China
| | - Ao Li
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | - Sirui Han
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China
| | | | - Honglei Jia
- School of Environmental Science and Engineering, Shaanxi University of Science & Technology, Xi'an, Shaanxi, 710021, China.
| | | | - Jisheng Li
- College of Life Sciences, Northwest A&F University, Yangling, Shaanxi, 712100, China.
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8
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Borrowman S, Kapuganti JG, Loake GJ. Expanding roles for S-nitrosylation in the regulation of plant immunity. Free Radic Biol Med 2023; 194:357-368. [PMID: 36513331 DOI: 10.1016/j.freeradbiomed.2022.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/08/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022]
Abstract
Following pathogen recognition, plant cells produce a nitrosative burst resulting in a striking increase in nitric oxide (NO), altering the redox state of the cell, which subsequently helps orchestrate a plethora of immune responses. NO is a potent redox cue, efficiently relayed between proteins through its co-valent attachment to highly specific, powerfully reactive protein cysteine (Cys) thiols, resulting in formation of protein S-nitrosothiols (SNOs). This process, known as S-nitrosylation, can modulate the function of target proteins, enabling responsiveness to cellular redox changes. Key targets of S-nitrosylation control the production of reactive oxygen species (ROS), the transcription of immune-response genes, the triggering of the hypersensitive response (HR) and the establishment of systemic acquired resistance (SAR). Here, we bring together recent advances in the control of plant immunity by S-nitrosylation, furthering our appreciation of how changes in cellular redox status reprogramme plant immune function.
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Affiliation(s)
- Sam Borrowman
- Institute of Molecular Plant Sciences, School of Biological Sciences, Edinburgh University, King's Buildings, Max Born Crescent, Edinburgh, EH9 3BF, UK
| | | | - Gary J Loake
- Institute of Molecular Plant Sciences, School of Biological Sciences, Edinburgh University, King's Buildings, Max Born Crescent, Edinburgh, EH9 3BF, UK; Centre for Engineering Biology, Max Born Crescent, King's Buildings, Edinburgh, EH9 3BF, UK.
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9
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Wei L, Zhang J, Wei S, Wang C, Deng Y, Hu D, Liu H, Gong W, Pan Y, Liao W. Nitric oxide alleviates salt stress through protein S-nitrosylation and transcriptional regulation in tomato seedlings. PLANTA 2022; 256:101. [PMID: 36271196 DOI: 10.1007/s00425-022-04015-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
NO enhances the resistance of tomato seedlings to salt stress through protein S-nitrosylation and transcriptional regulation, which involves the regulation of MAPK signaling and carbohydrate metabolism. Nitric oxide (NO) regulates various physiological and biochemical processes and stress responses in plants. We found that S-nitrosoglutathione (GSNO) treatment significantly promoted the growth of tomato seedling under NaCl stress, indicating that NO plays a positive role in salt stress resistance. Moreover, GSNO pretreatment resulted in an increase of endogenous NO level, S-nitrosothiol (SNO) content, S-nitrosoglutathione reductase (GSNOR) activity and GSNOR expression under salt stress, implicating that S-nitrosylation might be involved in NO-alleviating salt stress. To further explore whether S-nitrosylation is a key molecular mechanism of NO-alleviating salt stress, the biotin-switch technique and liquid chromatography/mass spectrometry/mass spectrometry (LC-MS/MS) were conducted. A total of 1054 putative S-nitrosylated proteins have been identified, which were mainly enriched in chloroplast, cytoplasm and mitochondrion. Among them, 15 and 22 S-nitrosylated proteins were involved in mitogen-activated protein kinase (MAPK) signal transduction and carbohydrate metabolism, respectively. In MAPK signaling, various S-nitrosylated proteins, SAM1, SAM3, SAM, PP2C and SnRK, were down-regulated and MAPK, MAPKK and MAPKK5 were up-regulated at the transcriptional level by GSNO treatment under salt stress compared to NaCl treatment alone. The GSNO pretreatment could reduce ethylene production and ABA content under NaCl stress. In addition, the activities of enzyme identified in carbohydrate metabolism, their expression at the transcriptional level and the metabolite content were up-regulated by GSNO supplication under salt stress, resulting in the activation of glycolysis and tricarboxylic acid cycle (TCA) cycles. Thus, these results demonstrated that NO might beneficially regulate MAPK signaling at transcriptional levels and activate carbohydrate metabolism at the post-translational and transcriptional level, protecting seedlings from energy deficiency and salinity, thereby alleviating salt stress-induced damage in tomato seedlings. It provides initial insights into the regulatory mechanisms of NO in response to salt stress.
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Affiliation(s)
- Lijuan Wei
- College of Horticulture, Gansu Agricultural University, 1 Yinmen Village, Anning District, Lanzhou, 730070, People's Republic of China
| | - Jing Zhang
- College of Horticulture, Gansu Agricultural University, 1 Yinmen Village, Anning District, Lanzhou, 730070, People's Republic of China
| | - Shouhui Wei
- College of Horticulture, Gansu Agricultural University, 1 Yinmen Village, Anning District, Lanzhou, 730070, People's Republic of China
| | - Chunlei Wang
- College of Horticulture, Gansu Agricultural University, 1 Yinmen Village, Anning District, Lanzhou, 730070, People's Republic of China
| | - Yuzheng Deng
- College of Horticulture, Gansu Agricultural University, 1 Yinmen Village, Anning District, Lanzhou, 730070, People's Republic of China
| | - Dongliang Hu
- College of Horticulture, Gansu Agricultural University, 1 Yinmen Village, Anning District, Lanzhou, 730070, People's Republic of China
| | - Huwei Liu
- College of Horticulture, Gansu Agricultural University, 1 Yinmen Village, Anning District, Lanzhou, 730070, People's Republic of China
| | - Wenting Gong
- College of Horticulture, Gansu Agricultural University, 1 Yinmen Village, Anning District, Lanzhou, 730070, People's Republic of China
| | - Ying Pan
- College of Horticulture, Gansu Agricultural University, 1 Yinmen Village, Anning District, Lanzhou, 730070, People's Republic of China
| | - Weibiao Liao
- College of Horticulture, Gansu Agricultural University, 1 Yinmen Village, Anning District, Lanzhou, 730070, People's Republic of China.
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10
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Zeng H, Bai Y, Wei Y, Reiter RJ, Shi H. Phytomelatonin as a central molecule in plant disease resistance. JOURNAL OF EXPERIMENTAL BOTANY 2022; 73:5874-5885. [PMID: 35298631 DOI: 10.1093/jxb/erac111] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 03/11/2022] [Indexed: 06/14/2023]
Abstract
Melatonin is an essential phytohormone in the regulation of many plant processes, including during plant development and in response to stress. Pathogen infections cause serious damage to plants and reduce agricultural production. Recent studies indicate that melatonin plays important roles in alleviating bacterial, fungal, and viral diseases in plants and post-harvest fruits. Herein, we summarize information related to the effects of melatonin on plant disease resistance. Melatonin, reactive oxygen species, and reactive nitrogen species form a complex loop in plant-pathogen interaction to regulate plant disease resistance. Moreover, crosstalk of melatonin with other phytohormones including salicylic acid, jasmonic acid, auxin, and abscisic acid further activates plant defense genes. Melatonin plays an important role not only in plant immunity but also in alleviating pathogenicity. We also summarize the known processes by which melatonin mediates pathogenicity via negatively regulating the expression levels of genes related to cell viability as well as virulence-related genes. The multiple mechanisms underlying melatonin influences on both plant immunity and pathogenicity support the recognition of the essential nature of melatonin in plant-pathogen interactions, highlighting phytomelatonin as a critical molecule in plant immune responses.
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Affiliation(s)
- Hongqiu Zeng
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan province, 570228, China
| | - Yujing Bai
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan province, 570228, China
| | - Yunxie Wei
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan province, 570228, China
| | - Russel J Reiter
- Department of Cellular and Structural Biology, UT Health San Antonio, Long School of Medicine, San Antonio, TX, USA
| | - Haitao Shi
- Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, College of Tropical Crops, Hainan University, Haikou, Hainan province, 570228, China
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11
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Kohli SK, Khanna K, Bhardwaj R, Corpas FJ, Ahmad P. Nitric oxide, salicylic acid and oxidative stress: Is it a perfect equilateral triangle? PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2022; 184:56-64. [PMID: 35636332 DOI: 10.1016/j.plaphy.2022.05.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 05/13/2022] [Accepted: 05/17/2022] [Indexed: 06/15/2023]
Abstract
Nitric oxide (NO) is an endogenous free radical involved in the regulation of a wide array of physio-biochemical phenomena in plants. The biological activity of NO directly depend on its cellular concentration which usually changes under stress conditions, it participates in maintaining cellular redox equilibrium and regulating target checkpoints which control switches among development and stress. It is one of the key players in plant signalling and a plethora of evidence supports its crosstalk with other phytohormones. NO and salicylic acid (SA) cooperation is also of great physiological relevance, where NO modulates the immune response by regulating SA linked target proteins i.e., non-expressor of pathogenesis-related genes (NPR-1 and NPR-2) and Group D bZIP (basic leucine zipper domain transcription factor). Many experimental data suggest a functional cooperative role between NO and SA in mitigating the plant oxidative stress which suggests that these relationships could constitute a metabolic "equilateral triangle".
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Affiliation(s)
- Sukhmeen Kaur Kohli
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Kanika Khanna
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India
| | - Renu Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, 143005, India.
| | - Francisco J Corpas
- Department of Biochemistry, Cell and Molecular Biology, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - Parvaiz Ahmad
- Department of Botany, GDC, Pulwama, 192301, Jammu and Kashmir, India.
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12
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Plokhovska SH, Shadrina RY, Kravets OA, Yemets AI, Blume YB. The Role of Nitric Oxide in the Arabidopsis thaliana Response to Simulated Microgravity and the Involvement of Autophagy in This Process. CYTOL GENET+ 2022. [DOI: 10.3103/s0095452722030100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Song X, Wang T, Zhang Y, Yu JQ, Xia XJ. S-Nitrosoglutathione Reductase Contributes to Thermotolerance by Modulating High Temperature-Induced Apoplastic H 2O 2 in Solanum lycopersicum. FRONTIERS IN PLANT SCIENCE 2022; 13:862649. [PMID: 35498691 PMCID: PMC9042256 DOI: 10.3389/fpls.2022.862649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 03/16/2022] [Indexed: 06/14/2023]
Abstract
S-nitrosoglutathione reductase (GSNOR) is considered as a critical regulator of plant stress tolerance for its impacts on protein S-nitrosylation through regulation of the S-nitrosothiol (SNO) level. However, the mechanism of GSNOR-mediated stress tolerance is still obscure. Here, we found that GSNOR activity was induced by high temperature in tomato (Solanum lycopersicum) plants, whereas mRNA level of SlGSNOR1 exhibited little response. Suppressing SlGSNOR1 expression by virus-induced gene silencing (VIGS) increased accumulation of SNO and nitrites under high temperature and reduced thermotolerance. The compromised thermotolerance was associated with less accumulation of abscisic acid (ABA) and salicylic acid (SA), attenuated activation of mitogen-activated protein kinase (MAPK) and reduced expression of heat shock protein. Intriguingly, SlGSNOR1 silencing impaired upregulation of RESPIRATORY BURST OXIDASE HOMOLOG1 (SlRBOH1) and apoplastic H2O2 accumulation in response to high temperature, whereas SlRBOH1 silencing abolished activation of GSNOR and led to a similar decline in thermotolerance as in SlGSNOR1-silenced plants. Importantly, H2O2 treatment recovered the thermotolerance and improved antioxidant capacity in SlGSNOR1-silenced plants. Our results suggest that GSNOR plays a role in regulating the SlRBOH1-dependent apoplastic H2O2 production in response to high temperature, while a balanced interaction between SNO and H2O2 is critical for maintaining the cellular redox homeostasis and thermotolerance.
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Affiliation(s)
- Xuewei Song
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Ting Wang
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Yang Zhang
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
| | - Jing-Quan Yu
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
- Key Laboratory of Horticultural Plants Growth, Development and Quality Improvement, Agricultural Ministry of China, Hangzhou, China
| | - Xiao-Jian Xia
- Department of Horticulture, Zijingang Campus, Zhejiang University, Hangzhou, China
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14
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Hussain A, Shah F, Ali F, Yun BW. Role of Nitric Oxide in Plant Senescence. FRONTIERS IN PLANT SCIENCE 2022; 13:851631. [PMID: 35463429 PMCID: PMC9022112 DOI: 10.3389/fpls.2022.851631] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 03/15/2022] [Indexed: 05/27/2023]
Abstract
In plants senescence is the final stage of plant growth and development that ultimately leads to death. Plants experience age-related as well as stress-induced developmental ageing. Senescence involves significant changes at the transcriptional, post-translational and metabolomic levels. Furthermore, phytohormones also play a critical role in the programmed senescence of plants. Nitric oxide (NO) is a gaseous signalling molecule that regulates a plethora of physiological processes in plants. Its role in the control of ageing and senescence has just started to be elucidated. Here, we review the role of NO in the regulation of programmed cell death, seed ageing, fruit ripening and senescence. We also discuss the role of NO in the modulation of phytohormones during senescence and the significance of NO-ROS cross-talk during programmed cell death and senescence.
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Affiliation(s)
- Adil Hussain
- Department of Entomology, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Farooq Shah
- Department of Agronomy, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Farman Ali
- Department of Entomology, Abdul Wali Khan University Mardan, Mardan, Pakistan
| | - Byung-Wook Yun
- Department of Applied Biosciences, College of Agriculture and Life Science, Kyungpook National University, Daegu, South Korea
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15
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He NY, Chen LS, Sun AZ, Zhao Y, Yin SN, Guo FQ. A nitric oxide burst at the shoot apex triggers a heat-responsive pathway in Arabidopsis. NATURE PLANTS 2022; 8:434-450. [PMID: 35437002 DOI: 10.1038/s41477-022-01135-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
When confronted with heat stress, plants depend on the timely activation of cellular defences to survive by perceiving the rising temperature. However, how plants sense heat at the whole-plant level has remained unanswered. Here we demonstrate that shoot apical nitric oxide (NO) bursting under heat stress as a signal triggers cellular heat responses at the whole-plant level on the basis of our studies mainly using live-imaging of transgenic plants harbouring pHsfA2::LUC, micrografting, NO accumulation mutants and liquid chromatography-tandem mass spectrometry analysis in Arabidopsis. Furthermore, we validate that S-nitrosylation of the trihelix transcription factor GT-1 by S-nitrosoglutathione promotes its binding to NO-responsive elements in the HsfA2 promoter and that loss of function of GT-1 disrupts the activation of HsfA2 and heat tolerance, revealing that GT-1 is the long-sought mediator linking signal perception to the activation of cellular heat responses. These findings uncover a heat-responsive mechanism that determines the timing and execution of cellular heat responses at the whole-plant level.
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Affiliation(s)
- Ning-Yu He
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Li-Sha Chen
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Ai-Zhen Sun
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Yao Zhao
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Shui-Ning Yin
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai, China
| | - Fang-Qing Guo
- National Key Laboratory of Plant Molecular Genetics, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology & Ecology, Chinese Academy of Sciences, Shanghai, China.
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16
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Ayiti OE, Babalola OO. Factors Influencing Soil Nitrification Process and the Effect on Environment and Health. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2022. [DOI: 10.3389/fsufs.2022.821994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
To meet the global demand for food, several factors have been deployed by agriculturists to supply plants with nitrogen. These factors have been observed to influence the soil nitrification process. Understanding the aftermath effect on the environment and health would provoke efficient management. We review literature on these factors, their aftermath effect on the environment and suggest strategies for better management. Synthetic fertilizers and chemical nitrification inhibitors are the most emphasized factors that influence the nitrification process. The process ceases when pH is <5.0. The range of temperature suitable for the proliferation of ammonia oxidizing archaea is within 30 to 37oC while that of ammonia oxidizing bacteria is within 16 to 23oC. Some of the influencing factors excessively speed up the rate of the nitrification process. This leads to excess production of nitrate, accumulation of nitrite as a result of decoupling between nitritation process and nitratation process. The inhibition mechanism of chemical nitrification inhibitors either causes a reduction in the nitrifying micro-organisms or impedes the amoA gene's function. The effects on the environment are soil acidification, global warming, and eutrophication. Some of the health effects attributed to the influence are methemoglobinemia, neurotoxicity, phytotoxicity and cancer. Biomagnification of the chemicals along the food chain is also a major concern. The use of well-researched and scientifically formulated organic fertilizers consisting of microbial inoculum, well-treated organic manure and good soil conditioner are eco-friendly. They are encouraged to be used to efficiently manage the process. Urban agriculture could promote food production, but environmental sustainability should be ensured.
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17
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Gupta KJ, Kaladhar VC, Fitzpatrick TB, Fernie AR, Møller IM, Loake GJ. Nitric oxide regulation of plant metabolism. MOLECULAR PLANT 2022; 15:228-242. [PMID: 34971792 DOI: 10.1016/j.molp.2021.12.012] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 10/31/2021] [Accepted: 12/23/2021] [Indexed: 05/17/2023]
Abstract
Nitric oxide (NO) has emerged as an important signal molecule in plants, having myriad roles in plant development. In addition, NO also orchestrates both biotic and abiotic stress responses, during which intensive cellular metabolic reprogramming occurs. Integral to these responses is the location of NO biosynthetic and scavenging pathways in diverse cellular compartments, enabling plants to effectively organize signal transduction pathways. NO regulates plant metabolism and, in turn, metabolic pathways reciprocally regulate NO accumulation and function. Thus, these diverse cellular processes are inextricably linked. This review addresses the numerous redox pathways, located in the various subcellular compartments that produce NO, in addition to the mechanisms underpinning NO scavenging. We focus on how this molecular dance is integrated into the metabolic state of the cell. Within this context, a reciprocal relationship between NO accumulation and metabolite production is often apparent. We also showcase cellular pathways, including those associated with nitrate reduction, that provide evidence for this integration of NO function and metabolism. Finally, we discuss the potential importance of the biochemical reactions governing NO levels in determining plant responses to a changing environment.
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Affiliation(s)
- Kapuganti Jagadis Gupta
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, Delhi 110067 India.
| | - Vemula Chandra Kaladhar
- National Institute of Plant Genome Research, Aruna Asaf Ali Marg, New Delhi, Delhi 110067 India
| | - Teresa B Fitzpatrick
- Vitamins and Environmental Stress Responses in Plants, Department of Botany and Plant Biology, University of Geneva, Geneva 1211 Switzerland
| | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Am Mühlenberg 1, Potsdam-Golm 14476 Germany
| | - Ian Max Møller
- Department of Molecular Biology and Genetics, Aarhus University, Forsøgsvej 1, 4200 Slagelse, Denmark
| | - Gary J Loake
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh EH9 3BF, UK.
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18
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Pande A, Mun BG, Khan M, Rahim W, Lee DS, Lee GM, Al Azawi TNI, Hussain A, Yun BW. Nitric Oxide Signaling and Its Association with Ubiquitin-Mediated Proteasomal Degradation in Plants. Int J Mol Sci 2022; 23:ijms23031657. [PMID: 35163578 PMCID: PMC8835921 DOI: 10.3390/ijms23031657] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 01/28/2022] [Accepted: 01/29/2022] [Indexed: 02/05/2023] Open
Abstract
Nitric oxide (NO) is a versatile signaling molecule with diverse roles in plant biology. The NO-mediated signaling mechanism includes post-translational modifications (PTMs) of target proteins. There exists a close link between NO-mediated PTMs and the proteasomal degradation of proteins via ubiquitylation. In some cases, ubiquitin-mediated proteasomal degradation of target proteins is followed by an NO-mediated post-translational modification on them, while in other cases NO-mediated PTMs can regulate the ubiquitylation of the components of ubiquitin-mediated proteasomal machinery for promoting their activity. Another pathway that links NO signaling with the ubiquitin-mediated degradation of proteins is the N-degron pathway. Overall, these mechanisms reflect an important mechanism of NO signal perception and transduction that reflect a close association of NO signaling with proteasomal degradation via ubiquitylation. Therefore, this review provides insight into those pathways that link NO-PTMs with ubiquitylation.
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Affiliation(s)
- Anjali Pande
- Laboratory of Plant Molecular Pathology and Functional Genomics, Department of Plant Biosciences, School of Applied Biosciences, College of Agriculture & Life Science, Kyungpook National University, Daegu 41944, Korea; (B.-G.M.); (M.K.); (W.R.); (D.-S.L.); (G.-M.L.); (T.N.I.A.A.)
- Correspondence: (A.P.); (B.-W.Y.)
| | - Bong-Gyu Mun
- Laboratory of Plant Molecular Pathology and Functional Genomics, Department of Plant Biosciences, School of Applied Biosciences, College of Agriculture & Life Science, Kyungpook National University, Daegu 41944, Korea; (B.-G.M.); (M.K.); (W.R.); (D.-S.L.); (G.-M.L.); (T.N.I.A.A.)
| | - Murtaza Khan
- Laboratory of Plant Molecular Pathology and Functional Genomics, Department of Plant Biosciences, School of Applied Biosciences, College of Agriculture & Life Science, Kyungpook National University, Daegu 41944, Korea; (B.-G.M.); (M.K.); (W.R.); (D.-S.L.); (G.-M.L.); (T.N.I.A.A.)
| | - Waqas Rahim
- Laboratory of Plant Molecular Pathology and Functional Genomics, Department of Plant Biosciences, School of Applied Biosciences, College of Agriculture & Life Science, Kyungpook National University, Daegu 41944, Korea; (B.-G.M.); (M.K.); (W.R.); (D.-S.L.); (G.-M.L.); (T.N.I.A.A.)
| | - Da-Sol Lee
- Laboratory of Plant Molecular Pathology and Functional Genomics, Department of Plant Biosciences, School of Applied Biosciences, College of Agriculture & Life Science, Kyungpook National University, Daegu 41944, Korea; (B.-G.M.); (M.K.); (W.R.); (D.-S.L.); (G.-M.L.); (T.N.I.A.A.)
| | - Geun-Mo Lee
- Laboratory of Plant Molecular Pathology and Functional Genomics, Department of Plant Biosciences, School of Applied Biosciences, College of Agriculture & Life Science, Kyungpook National University, Daegu 41944, Korea; (B.-G.M.); (M.K.); (W.R.); (D.-S.L.); (G.-M.L.); (T.N.I.A.A.)
| | - Tiba Nazar Ibrahim Al Azawi
- Laboratory of Plant Molecular Pathology and Functional Genomics, Department of Plant Biosciences, School of Applied Biosciences, College of Agriculture & Life Science, Kyungpook National University, Daegu 41944, Korea; (B.-G.M.); (M.K.); (W.R.); (D.-S.L.); (G.-M.L.); (T.N.I.A.A.)
| | - Adil Hussain
- Laboratory of Cell Biology, Department of Entomology, Abdul Wali Khan University, Mardan 23200, Khyber Pakhtunkhwa, Pakistan;
| | - Byung-Wook Yun
- Laboratory of Plant Molecular Pathology and Functional Genomics, Department of Plant Biosciences, School of Applied Biosciences, College of Agriculture & Life Science, Kyungpook National University, Daegu 41944, Korea; (B.-G.M.); (M.K.); (W.R.); (D.-S.L.); (G.-M.L.); (T.N.I.A.A.)
- Correspondence: (A.P.); (B.-W.Y.)
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19
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Kruse CPS, Wyatt SE. Nitric oxide, gravity response, and a unified schematic of plant signaling. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 314:111105. [PMID: 34895542 DOI: 10.1016/j.plantsci.2021.111105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 10/29/2021] [Accepted: 11/02/2021] [Indexed: 06/14/2023]
Abstract
Plant signaling components are often involved in numerous processes. Calcium, reactive oxygen species, and other signaling molecules are essential to normal biotic and abiotic responses. Yet, the summation of these components is integrated to produce a specific response despite their involvement in a myriad of response cascades. In the response to gravity, the role of many of these individual components has been studied, but a specific sequence of signals has not yet been assembled into a cohesive schematic of gravity response signaling. Herein, we provide a review of existing knowledge of gravity response and differential protein and gene regulation induced by the absence of gravity stimulus aboard the International Space Station and propose an integrated theoretical schematic of gravity response incorporating that information. Recent developments in the role of nitric oxide in gravity signaling provided some of the final contextual pillars for the assembly of the model, where nitric oxide and the role of cysteine S-nitrosation may be central to the gravity response. The proposed schematic accounts for the known responses to reorientation with respect to gravity in roots-the most well studied gravitropic plant tissue-and is supported by the extensive evolutionary conservation of regulatory amino acids within protein components of the signaling schematic. The identification of a role of nitric oxide in regulating the TIR1 auxin receptor is indicative of the broader relevance of the schematic in studying a multitude of environmental and stress responses. Finally, there are several experimental approaches that are highlighted as essential to the further study and validation of this schematic.
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Affiliation(s)
- Colin P S Kruse
- Department of Environmental and Plant Biology, Ohio University, Athens, OH 45701, United States; Interdisciplinary Program in Molecular and Cellular Biology, Ohio University, Athens, OH 45701, United States; Los Alamos National Laboratory, Bioscience Division, Los Alamos, NM 87545, United States(1)
| | - Sarah E Wyatt
- Department of Environmental and Plant Biology, Ohio University, Athens, OH 45701, United States; Interdisciplinary Program in Molecular and Cellular Biology, Ohio University, Athens, OH 45701, United States.
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20
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Nabi RBS, Rolly NK, Tayade R, Khan M, Shahid M, Yun BW. Enhanced Resistance of atbzip62 against Pseudomonas syringae pv. tomato Suggests Negative Regulation of Plant Basal Defense and Systemic Acquired Resistance by AtbZIP62 Transcription Factor. Int J Mol Sci 2021; 22:ijms222111541. [PMID: 34768971 PMCID: PMC8584143 DOI: 10.3390/ijms222111541] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/22/2021] [Accepted: 10/22/2021] [Indexed: 11/16/2022] Open
Abstract
The intrinsic defense mechanisms of plants toward pathogenic bacteria have been widely investigated for years and are still at the center of interest in plant biosciences research. This study investigated the role of the AtbZIP62 gene encoding a transcription factor (TF) in the basal defense and systemic acquired resistance in Arabidopsis using the reverse genetics approach. To achieve that, the atbzip62 mutant line (lacking the AtbZIP62 gene) was challenged with Pseudomonas syringae pv. tomato (Pst DC3000) inoculated by infiltration into Arabidopsis leaves at the rosette stage. The results indicated that atbzip62 plants showed an enhanced resistance phenotype toward Pst DC3000 vir over time compared to Col-0 and the susceptible disease controls, atgsnor1-3 and atsid2. In addition, the transcript accumulation of pathogenesis-related genes, AtPR1 and AtPR2, increased significantly in atbzip62 over time (0–72 h post-inoculation, hpi) compared to that of atgsnor1-3 and atsid2 (susceptible lines), with AtPR1 prevailing over AtPR2. When coupled with the recorded pathogen growth (expressed as a colony-forming unit, CFU mL−1), the induction of PR genes, associated with the salicylic acid (SA) defense signaling, in part explained the observed enhanced resistance of atbzip62 mutant plants in response to Pst DC3000 vir. Furthermore, when Pst DC3000 avrB was inoculated, the expression of AtPR1 was upregulated in the systemic leaves of Col-0, while that of AtPR2 remained at a basal level in Col-0. Moreover, the expression of AtAZI (a systemic acquired resistance -related) gene was significantly upregulated at all time points (0–24 h post-inoculation, hpi) in atbzip62 compared to Col-0 and atgsnor1-3 and atsid2. Under the same conditions, AtG3DPH exhibited a high transcript accumulation level 48 hpi in the atbzip62 background. Therefore, all data put together suggest that AtPR1 and AtPR2 coupled with AtAZI and AtG3DPH, with AtAZI prevailing over AtG3DPH, would contribute to the recorded enhanced resistance phenotype of the atbzip62 mutant line against Pst DC3000. Thus, the AtbZIP62 TF is proposed as a negative regulator of basal defense and systemic acquired resistance in plants under Pst DC3000 infection.
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Affiliation(s)
- Rizwana Begum Syed Nabi
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea; (R.B.S.N.); (N.K.R.); (M.K.); (M.S.)
- Department of Southern Area Crop Science, National Institute of Crop Science, RDA, Miryang 50424, Korea
| | - Nkulu Kabange Rolly
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea; (R.B.S.N.); (N.K.R.); (M.K.); (M.S.)
- Department of Southern Area Crop Science, National Institute of Crop Science, RDA, Miryang 50424, Korea
- National Laboratory of Seed Testing, National Seed Service, SENASEM, Ministry of Agriculture, Kinshasa 904KIN1, Democratic Republic of the Congo
| | - Rupesh Tayade
- Laboratory of Plant Breeding, School of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea;
| | - Murtaza Khan
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea; (R.B.S.N.); (N.K.R.); (M.K.); (M.S.)
| | - Muhammad Shahid
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea; (R.B.S.N.); (N.K.R.); (M.K.); (M.S.)
- Agriculture Research Institute Mingora, Swat 19130, Khyber Pakhtunkhwa, Pakistan
| | - Byung-Wook Yun
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu 41566, Korea; (R.B.S.N.); (N.K.R.); (M.K.); (M.S.)
- Correspondence: ; Tel.: +82-53-950-5712
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21
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Cui B, Ma X, Li Y, Zhou Y, Ju X, Hussain A, Umbreen S, Yuan B, Tabassum A, Lubega J, Shan W, Loake GJ, Pan Q. Perturbations in nitric oxide homeostasis promote Arabidopsis disease susceptibility towards Phytophthora parasitica. MOLECULAR PLANT PATHOLOGY 2021; 22:1134-1148. [PMID: 34242483 PMCID: PMC8359001 DOI: 10.1111/mpp.13102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 06/03/2021] [Accepted: 06/05/2021] [Indexed: 05/08/2023]
Abstract
Phytophthora species can infect hundreds of different plants, including many important crops, causing a number of agriculturally relevant diseases. A key feature of attempted pathogen infection is the rapid production of the redox active molecule nitric oxide (NO). However, the potential role(s) of NO in plant resistance against Phytophthora is relatively unexplored. Here we show that the level of NO accumulation is crucial for basal resistance in Arabidopsis against Phytophthora parasitica. Counterintuitively, both relatively low or relatively high NO accumulation leads to reduced resistance against P. parasitica. S-nitrosylation, the addition of a NO group to a protein cysteine thiol to form an S-nitrosothiol, is an important route for NO bioactivity and this process is regulated predominantly by S-nitrosoglutathione reductase 1 (GSNOR1). Loss-of-function mutations in GSNOR1 disable both salicylic acid accumulation and associated signalling, and also the production of reactive oxygen species, leading to susceptibility towards P. parasitica. Significantly, we also demonstrate that secreted proteins from P. parasitica can inhibit Arabidopsis GSNOR1 activity.
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Affiliation(s)
- Beimi Cui
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu ProvinceSchool of Life ScienceJiangsu Normal UniversityXuzhouChina
- Jiangsu Normal University–Edinburgh University, Centre for Transformative Biotechnology of Medicinal and Food PlantsJiangsu Normal UniversityXuzhouChina
- Institute of Molecular Plant SciencesSchool of Biological SciencesUniversity of EdinburghEdinburghUK
| | - Xiangren Ma
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu ProvinceSchool of Life ScienceJiangsu Normal UniversityXuzhouChina
| | - Yuan Li
- Institute of Molecular Plant SciencesSchool of Biological SciencesUniversity of EdinburghEdinburghUK
| | - Yu Zhou
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu ProvinceSchool of Life ScienceJiangsu Normal UniversityXuzhouChina
| | - Xiuyun Ju
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu ProvinceSchool of Life ScienceJiangsu Normal UniversityXuzhouChina
| | - Adil Hussain
- Department of AgricultureAbdul Wali Khan UniversityMardanPakistan
| | - Saima Umbreen
- Institute of Molecular Plant SciencesSchool of Biological SciencesUniversity of EdinburghEdinburghUK
| | - Bo Yuan
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu ProvinceSchool of Life ScienceJiangsu Normal UniversityXuzhouChina
- Jiangsu Normal University–Edinburgh University, Centre for Transformative Biotechnology of Medicinal and Food PlantsJiangsu Normal UniversityXuzhouChina
| | - Anika Tabassum
- Institute of Molecular Plant SciencesSchool of Biological SciencesUniversity of EdinburghEdinburghUK
| | - Jibril Lubega
- Institute of Molecular Plant SciencesSchool of Biological SciencesUniversity of EdinburghEdinburghUK
| | - Weixing Shan
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of AgronomyNorthwest A&F UniversityYanglingChina
| | - Gary J. Loake
- Jiangsu Normal University–Edinburgh University, Centre for Transformative Biotechnology of Medicinal and Food PlantsJiangsu Normal UniversityXuzhouChina
- Institute of Molecular Plant SciencesSchool of Biological SciencesUniversity of EdinburghEdinburghUK
| | - Qiaona Pan
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu ProvinceSchool of Life ScienceJiangsu Normal UniversityXuzhouChina
- Jiangsu Normal University–Edinburgh University, Centre for Transformative Biotechnology of Medicinal and Food PlantsJiangsu Normal UniversityXuzhouChina
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22
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Kachroo P, Burch-Smith TM, Grant M. An Emerging Role for Chloroplasts in Disease and Defense. ANNUAL REVIEW OF PHYTOPATHOLOGY 2021; 59:423-445. [PMID: 34432508 DOI: 10.1146/annurev-phyto-020620-115813] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Chloroplasts are key players in plant immune signaling, contributing to not only de novo synthesis of defensive phytohormones but also the generation of reactive oxygen and nitrogen species following activation of pattern recognition receptors or resistance (R) proteins. The local hypersensitive response (HR) elicited by R proteins is underpinned by chloroplast-generated reactive oxygen species. HR-induced lipid peroxidation generates important chloroplast-derived signaling lipids essential to the establishment of systemic immunity. As a consequence of this pivotal role in immunity, pathogens deploy effector complements that directly or indirectly target chloroplasts to attenuate chloroplast immunity (CI). Our review summarizes the current knowledge of CI signaling and highlights common pathogen chloroplast targets and virulence strategies. We address emerging insights into chloroplast retrograde signaling in immune responses and gaps in our knowledge, including the importance of understanding chloroplast heterogeneity and chloroplast involvement in intraorganellular interactions in host immunity.
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Affiliation(s)
- Pradeep Kachroo
- Department of Plant Pathology, University of Kentucky, Lexington, Kentucky 40546, USA
| | - Tessa M Burch-Smith
- Department of Biochemistry & Cellular and Molecular Biology, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - Murray Grant
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK;
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GSNOR Contributes to Demethylation and Expression of Transposable Elements and Stress-Responsive Genes. Antioxidants (Basel) 2021; 10:antiox10071128. [PMID: 34356361 PMCID: PMC8301139 DOI: 10.3390/antiox10071128] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/05/2021] [Accepted: 07/09/2021] [Indexed: 12/19/2022] Open
Abstract
In the past, reactive nitrogen species (RNS) were supposed to be stress-induced by-products of disturbed metabolism that cause oxidative damage to biomolecules. However, emerging evidence demonstrates a substantial role of RNS as endogenous signals in eukaryotes. In plants, S-nitrosoglutathione (GSNO) is the dominant RNS and serves as the •NO donor for S-nitrosation of diverse effector proteins. Remarkably, the endogenous GSNO level is tightly controlled by S-nitrosoglutathione reductase (GSNOR) that irreversibly inactivates the glutathione-bound NO to ammonium. Exogenous feeding of diverse RNS, including GSNO, affected chromatin accessibility and transcription of stress-related genes, but the triggering function of RNS on these regulatory processes remained elusive. Here, we show that GSNO reductase-deficient plants (gsnor1-3) accumulate S-adenosylmethionine (SAM), the principal methyl donor for methylation of DNA and histones. This SAM accumulation triggered a substantial increase in the methylation index (MI = [SAM]/[S-adenosylhomocysteine]), indicating the transmethylation activity and histone methylation status in higher eukaryotes. Indeed, a mass spectrometry-based global histone profiling approach demonstrated a significant global increase in H3K9me2, which was independently verified by immunological detection using a selective antibody. Since H3K9me2-modified regions tightly correlate with methylated DNA regions, we also determined the DNA methylation status of gsnor1-3 plants by whole-genome bisulfite sequencing. DNA methylation in the CG, CHG, and CHH contexts in gsnor1-3 was significantly enhanced compared to the wild type. We propose that GSNOR1 activity affects chromatin accessibility by controlling the transmethylation activity (MI) required for maintaining DNA methylation and the level of the repressive chromatin mark H3K9me2.
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24
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Rasool G, Buchholz G, Yasmin T, Shabbir G, Abbasi NA, Malik SI. Overexpression of SlGSNOR impairs in vitro shoot proliferation and developmental architecture in tomato but confers enhanced disease resistance. JOURNAL OF PLANT PHYSIOLOGY 2021; 261:153433. [PMID: 33990008 DOI: 10.1016/j.jplph.2021.153433] [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: 01/21/2021] [Revised: 04/11/2021] [Accepted: 04/23/2021] [Indexed: 06/12/2023]
Abstract
The pervasive presence of nitric oxide (NO) in cells and its role in modifying cystein residues through protein S-nitrosylation is a remarkable redox based signalling mechanism regulating a variety of cellular processes. S-NITROSOGLUTATHIONE REDUCTASE (GSNOR) governs NO bioavailability by the breakdown of S-nitrosoglutathione (GSNO), fine-tunes NO signalling and controls total cellular S-nitrosylated proteins. Most of the published data on GSNOR functional analysis is based on the model plant Arabidopsis with no previous report for its effect on in vitro regeneration of tissue cultured plants. Moreover, the effect of GSNOR overexpression (O.E) on tomato growth, development and disease resistance remains enigmatic. Here we show that SlGSNOR O.E in tomato alters multiple developmental programs from in vitro culture establishment to plant growth and fruit set. Moreover, constitutive SlGSNOR O.E in tomato showed enhanced resistance against early blight (EB) disease caused by Alternaria solani and reduction in hypersensitive response (HR)-mediated cell death after Pseudomonas syringae pv. tomato DC3000 (Pst DC3000) infiltrations. High GSNOR transcript levels led to the inhibition of in vitro shoot proliferation in transformed explants as revealed by the fluorescence microscopy after YFP labelling. Transgenic tomato lines overexpressing SlGSNOR showed defective phenotypes exhibiting stunted plant growth and bushy-type plants due to loss of apical dominance, along with reduced seed germination and delayed flowering. Furthermore, SlGSNOR O.E plants exhibited altered leaf arrangement, fruit shape and modified locules number in tomato fruit. These findings give a novel insight into a multifaceted regulatory role of SlGSNOR in tomato plant development, reproduction and response to pathogens.
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Affiliation(s)
- Ghulam Rasool
- Department of Plant Breeding and Genetics, Faculty of Crop and Food Sciences, PMAS Arid Agriculture University Rawalpindi, Rawalpindi, 46300, Pakistan
| | - Guenther Buchholz
- RLP AgroScience GmbH, AlPlanta - Institute for Plant Research, Neustadt, Germany
| | - Tayyaba Yasmin
- Department of Biosciences, COMSATS University Islamabad, Park Road, Islamabad, 45550, Pakistan
| | - Ghulam Shabbir
- Department of Plant Breeding and Genetics, Faculty of Crop and Food Sciences, PMAS Arid Agriculture University Rawalpindi, Rawalpindi, 46300, Pakistan
| | - Nadeem Akthar Abbasi
- Department of Horticulture, Faculty of Crop and Food Sciences, PMAS Arid Agriculture University Rawalpindi, Rawalpindi, 46300, Pakistan
| | - Saad Imran Malik
- Department of Plant Breeding and Genetics, Faculty of Crop and Food Sciences, PMAS Arid Agriculture University Rawalpindi, Rawalpindi, 46300, Pakistan.
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25
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Bleau JR, Spoel SH. Selective redox signaling shapes plant-pathogen interactions. PLANT PHYSIOLOGY 2021; 186:53-65. [PMID: 33793940 PMCID: PMC8154045 DOI: 10.1093/plphys/kiaa088] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 12/09/2020] [Indexed: 05/04/2023]
Abstract
A review of recent progress in understanding the mechanisms whereby plants utilize selective and reversible redox signaling to establish immunity.
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Affiliation(s)
- Jade R Bleau
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3BF, UK
| | - Steven H Spoel
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3BF, UK
- Author for communication:
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26
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Syed Nabi RB, Shahzad R, Tayade R, Shahid M, Hussain A, Ali MW, Yun BW. Evaluation potential of PGPR to protect tomato against Fusarium wilt and promote plant growth. PeerJ 2021; 9:e11194. [PMID: 33959416 PMCID: PMC8054735 DOI: 10.7717/peerj.11194] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 03/09/2021] [Indexed: 12/30/2022] Open
Abstract
Soilborne fungal diseases are most common among vegetable crops and have major implications for crop yield and productivity. Eco-friendly sustainable agriculture practices that can overcome biotic and abiotic stresses are of prime importance. In this study, we evaluated the ability of plant growth-promoting rhizobacterium (PGPR) Bacillus aryabhattai strain SRB02 to control the effects of tomato wilt disease caused by Fusarium oxysporum f. sp. lycopersici (strain KACC40032) and promote plant growth. In vitro bioassays showed significant inhibition of fungal growth by SRB02. Inoculation of susceptible and tolerant tomato cultivars in the presence of SRB02 showed significant protection of the cultivar that was susceptible to infection and promotion of plant growth and biomass production in both of the cultivars. Further analysis of SRB02-treated plants revealed a significantly higher production of amino acids following infection by F. oxysporum. Analysis of plant defense hormones after inoculation by the pathogen revealed a significantly higher accumulation of salicylic acid (SA), with a concomitant reduction in jasmonic acid (JA). These results indicate that B. aryabhattai strain SRB02 reduces the effects of Fusarium wilt disease in tomato by modulating endogenous phytohormones and amino acid levels.
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Affiliation(s)
- Rizwana Begum Syed Nabi
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu, South Korea.,Department of Southern Area Crop Science, National Institute of Crop Science, Rural; Development Administration, Miryang, South Korea
| | - Raheem Shahzad
- Department of Horticulture, The University of Haripur, Haripur, Pakistan
| | - Rupesh Tayade
- Laboratory of Plant Breeding, School of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Muhammad Shahid
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu, South Korea
| | - Adil Hussain
- Department of Agriculture,, Abdul Wali Khan University, Mardan, Pakistan
| | - Muhammad Waqas Ali
- School of Biosciences, University of Birmingham, Edgbaston, Birmingham, United Kingdom
| | - Byung-Wook Yun
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu, South Korea
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27
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Jian Y, Liu Z, Wang H, Chen Y, Yin Y, Zhao Y, Ma Z. Interplay of two transcription factors for recruitment of the chromatin remodeling complex modulates fungal nitrosative stress response. Nat Commun 2021; 12:2576. [PMID: 33958593 PMCID: PMC8102577 DOI: 10.1038/s41467-021-22831-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 03/25/2021] [Indexed: 02/03/2023] Open
Abstract
Nitric oxide (NO) is a diffusible signaling molecule that modulates animal and plant immune responses. In addition, reactive nitrogen species derived from NO can display antimicrobial activities by reacting with microbial cellular components, leading to nitrosative stress (NS) in pathogens. Here, we identify FgAreB as a regulator of the NS response in Fusarium graminearum, a fungal pathogen of cereal crops. FgAreB serves as a pioneer transcription factor for recruitment of the chromatin-remodeling complex SWI/SNF at the promoters of genes involved in the NS response, thus promoting their transcription. FgAreB plays important roles in fungal infection and growth. Furthermore, we show that a transcription repressor (FgIxr1) competes with the SWI/SNF complex for FgAreB binding, and negatively regulates the NS response. NS, in turn, promotes the degradation of FgIxr1, thus enhancing the recruitment of the SWI/SNF complex by FgAreB.
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Affiliation(s)
- Yunqing Jian
- State Key Laboratory of Rice Biology, Zhejiang University, Hangzhou, China
| | - Zunyong Liu
- Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Haixia Wang
- State Key Laboratory of Rice Biology, Zhejiang University, Hangzhou, China
| | - Yun Chen
- State Key Laboratory of Rice Biology, Zhejiang University, Hangzhou, China
- Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Yanni Yin
- State Key Laboratory of Rice Biology, Zhejiang University, Hangzhou, China
- Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Youfu Zhao
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Zhonghua Ma
- State Key Laboratory of Rice Biology, Zhejiang University, Hangzhou, China.
- Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China.
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28
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Yan Y, Wang P, Wei Y, Bai Y, Lu Y, Zeng H, Liu G, Reiter RJ, He C, Shi H. The dual interplay of RAV5 in activating nitrate reductases and repressing catalase activity to improve disease resistance in cassava. PLANT BIOTECHNOLOGY JOURNAL 2021; 19:785-800. [PMID: 33128298 PMCID: PMC8051611 DOI: 10.1111/pbi.13505] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/14/2020] [Accepted: 09/27/2020] [Indexed: 05/05/2023]
Abstract
Cassava bacterial blight (CBB) caused by Xanthomonas axonopodis pv. manihotis (Xam) seriously affects cassava yield. Nitrate reductase (NR) plays an important role in plant nitrogen metabolism in plants. However, the in vivo role of NR and the corresponding signalling pathway remain unclear in cassava. In this study, we isolated MeNR1/2 and revealed their novel upstream transcription factor MeRAV5. We also identified MeCatalase1 (MeCAT1) as the interacting protein of MeRAV5. In addition, we investigated the role of MeCatalase1 and MeRAV5-MeNR1/2 module in cassava defence response. MeNRs positively regulates cassava disease resistance against CBB through modulation of nitric oxide (NO) and extensive transcriptional reprogramming especially in mitogen-activated protein kinase (MAPK) signalling. Notably, MeRAV5 positively regulates cassava disease resistance through the coordination of NO and hydrogen peroxide (H2 O2 ) level. On the one hand, MeRAV5 directly activates the transcripts of MeNRs and NO level by binding to CAACA motif in the promoters of MeNRs. On the other hand, MeRAV5 interacts with MeCAT1 to inhibit its activity, so as to negatively regulate endogenous H2 O2 level. This study highlights the precise coordination of NR activity and CAT activity by MeRAV5 through directly activating MeNRs and interacting with MeCAT1 in plant immunity.
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Affiliation(s)
- Yu Yan
- Hainan Key Laboratory for Sustainable Utilization of Tropical BioresourcesCollege of Tropical CropsHainan UniversityHaikouChina
| | - Peng Wang
- Hainan Key Laboratory for Sustainable Utilization of Tropical BioresourcesCollege of Tropical CropsHainan UniversityHaikouChina
| | - Yunxie Wei
- Hainan Key Laboratory for Sustainable Utilization of Tropical BioresourcesCollege of Tropical CropsHainan UniversityHaikouChina
| | - Yujing Bai
- Hainan Key Laboratory for Sustainable Utilization of Tropical BioresourcesCollege of Tropical CropsHainan UniversityHaikouChina
| | - Yi Lu
- Hainan Key Laboratory for Sustainable Utilization of Tropical BioresourcesCollege of Tropical CropsHainan UniversityHaikouChina
| | - Hongqiu Zeng
- Hainan Key Laboratory for Sustainable Utilization of Tropical BioresourcesCollege of Tropical CropsHainan UniversityHaikouChina
| | - Guoyin Liu
- Hainan Key Laboratory for Sustainable Utilization of Tropical BioresourcesCollege of Tropical CropsHainan UniversityHaikouChina
| | - Russel J. Reiter
- Department of Anatomy and Cell SystemUT Health San AntonioSan AntonioTXUSA
| | - Chaozu He
- Hainan Key Laboratory for Sustainable Utilization of Tropical BioresourcesCollege of Tropical CropsHainan UniversityHaikouChina
| | - Haitao Shi
- Hainan Key Laboratory for Sustainable Utilization of Tropical BioresourcesCollege of Tropical CropsHainan UniversityHaikouChina
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29
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Cui B, Xu S, Li Y, Umbreen S, Frederickson D, Yuan B, Jiang J, Liu F, Pan Q, Loake GJ. The Arabidopsis zinc finger proteins SRG2 and SRG3 are positive regulators of plant immunity and are differentially regulated by nitric oxide. THE NEW PHYTOLOGIST 2021; 230:259-274. [PMID: 33037639 DOI: 10.1111/nph.16993] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 09/25/2020] [Indexed: 06/11/2023]
Abstract
Nitric oxide (NO) regulates the deployment of a phalanx of immune responses, chief among which is the activation of a constellation of defence-related genes. However, the underlying molecular mechanisms remain largely unknown. The Arabidopsis thaliana zinc finger transcription factor (ZF-TF), S-nitrosothiol (SNO) Regulated 1 (SRG1), is a central target of NO bioactivity during plant immunity. Here we characterize the remaining members of the SRG gene family. Both SRG2 and, especially, SRG3 were positive regulators of salicylic acid-dependent plant immunity. Analysis of SRG single, double and triple mutants implied that SRG family members have additive functions in plant immunity and, surprisingly, are under reciprocal regulation. SRG2 and SRG3 localized to the nucleus and functioned as ethylene-responsive element binding factor-associated amphiphilic repression (EAR) domain-dependent transcriptional repressors: NO abolished this activity for SRG3 but not for SRG2. Consistently, loss of GSNOR function, resulting in increased (S)NO concentrations, fully suppressed the disease resistance phenotype established from SRG3 but not SRG2 overexpression. Remarkably, SRG3 but not SRG2 was S-nitrosylated in vitro and in vivo. Our findings suggest that the SRG family has separable functions in plant immunity, and, surprisingly, these ZF-TFs exhibit reciprocal regulation. It is remarkable that, through neofunctionalization, the SRG family has evolved to become differentially regulated by the key immune-related redox cue, NO.
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Affiliation(s)
- Beimi Cui
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3BF, UK
- Transformational Centre for Biotechnology of Medicinal and Food Plants, Jiangsu Normal University - Edinburgh University, Xuzhou, 221116, China
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Shiwen Xu
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
| | - Yuan Li
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3BF, UK
| | - Saima Umbreen
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3BF, UK
| | - Debra Frederickson
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3BF, UK
| | - Bo Yuan
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
- Transformational Centre for Biotechnology of Medicinal and Food Plants, Jiangsu Normal University - Edinburgh University, Xuzhou, 221116, China
| | - Jihong Jiang
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
- Transformational Centre for Biotechnology of Medicinal and Food Plants, Jiangsu Normal University - Edinburgh University, Xuzhou, 221116, China
| | - Fengquan Liu
- Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Qiaona Pan
- The Key Laboratory of Biotechnology for Medicinal Plant of Jiangsu Province, School of Life Science, Jiangsu Normal University, Xuzhou, 221116, China
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3BF, UK
- Transformational Centre for Biotechnology of Medicinal and Food Plants, Jiangsu Normal University - Edinburgh University, Xuzhou, 221116, China
| | - Gary J Loake
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3BF, UK
- Transformational Centre for Biotechnology of Medicinal and Food Plants, Jiangsu Normal University - Edinburgh University, Xuzhou, 221116, China
- Centre for Synthetic and Systems Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3BF, UK
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30
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Shi B, Zhao X, Li M, Dong Z, Yang Q, Wang Y, Gao H, Day B, Ma Q. Wheat Thioredoxin ( TaTrxh1) Associates With RD19-Like Cysteine Protease TaCP1 to Defend Against Stripe Rust Fungus Through Modulation of Programmed Cell Death. MOLECULAR PLANT-MICROBE INTERACTIONS : MPMI 2021; 34:426-438. [PMID: 33297713 DOI: 10.1094/mpmi-11-20-0304-r] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Thioredoxins (Trxs) function within the antioxidant network through modulation of one or more redox reactions involved in oxidative-stress signaling. Given their function in regulating cellular redox, Trx proteins also fulfill key roles in plant immune signaling. Here, TaTrxh1, encoding a subgroup h member of the Trx family, was identified and cloned in wheat (Triticum aestivum), which was rapidly induced by Puccinia striiformis f. sp. tritici invasion and salicylic acid (SA) treatment. Overexpression of TaTrxh1 in tobacco (Nicotiana benthamiana) induced programmed cell death. Silencing of TaTrxh1 in wheat enhanced susceptibility to P. striiformis f. sp. tritici in different aspects, including reactive oxygen species accumulation and pathogen-responsive or -related gene expression. Herein, we observed that the cellular concentration of SA was significantly reduced in TaTrxh1-silenced plants, indicating that TaTrxh1 possibly regulates wheat resistance to stripe rust through a SA-associated defense signaling pathway. Using a yeast two-hybrid screen to identify TaTrxh1-interacting partners, we further show that interaction with TaCP1 (a RD19-like cysteine protease) and subsequent silencing of TaCP1 reduced wheat resistance to P. striiformis f. sp. tritici. In total, the data presented herein demonstrate that TaTrxh1 enhances wheat resistance against P. striiformis f. sp. tritici via SA-dependent resistance signaling and that TaTrxh1 interaction with TaCP1 is required for wheat resistance to stripe rust.[Formula: see text] Copyright © 2021 The Author(s). This is an open access article distributed under the CC BY-NC-ND 4.0 International license.
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Affiliation(s)
- Beibei Shi
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xinbei Zhao
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
- Institute of Plant Protection, Henan Academy of Agricultural Sciences/Key Laboratory of IPM of Pests on Crop (Southern North China), Ministry of Agriculture, Key Laboratory of Crop Pest Control of Henan, Zhengzhou, Henan 450002, China
| | - Min Li
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zihui Dong
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Qichao Yang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yang Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Haifeng Gao
- Institute of Plant Protection, Xinjiang Academy of Agricultural Sciences/Key Laboratory of Integrated Pest Management on Crop in Northwestern Oasis, Ministry of Agriculture and Rural Affairs, Urumqi, Xinjiang 830091, China
| | - Brad Day
- Department of Plant, Soil and Microbial Sciences, Michigan State University, East Lansing, MI, U.S.A
- Plant Resilience Institute, Michigan State University, East Lansing, MI, U.S.A
| | - Qing Ma
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
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Carvalho V, Gaspar M, Nievola C. Short-term drought triggers defence mechanisms faster than ABA accumulation in the epiphytic bromeliad Acanthostachys strobilacea. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2021; 160:62-72. [PMID: 33461051 DOI: 10.1016/j.plaphy.2020.12.030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/24/2020] [Indexed: 06/12/2023]
Abstract
Epiphytic bromeliads might experience drought after a few hours without water, which is especially critical during early life stages. Consequently, juvenile epiphytic bromeliads probably rely on short-term activation of drought tolerance strategies, although the biochemical processes involved are still poorly understood. In this study, we aimed to evaluate the short-term drought response of juvenile plants of the epiphytic bromeliad Acanthostachys strobilacea (Schult. & Schult. f.) Klotzsch. We hypothesized that short-term drought would induce the accumulation of abscisic acid (ABA) and secondary messengers such as reactive oxygen and nitrogen species (ROS and RNS, respectively) before the activation of defence mechanisms. Three-month-old plants were transferred from well-watered to dry substrates and stress markers were assessed at 0, 2, 5, 10, 24, 48, and 72 h. Drought caused a 27.3% decrease in relative water content compared to the well-watered control at 72 h. A nearly 5-fold increment in the ABA content occurred at 72 h of stress, which was about two days after the first detection of peaks in RNS levels and defence mechanisms activation. Indeed, ascorbate peroxidase (EC 1.11.1.11) activities and proline content increased after 10 h, whereas after 24 h a higher catalase (EC 1.11.1.6) activity and osmotic adjustment occurred. Oxidative stress markers and photochemical efficiency of photosystem II indicated no significant damage induced by drought. We concluded that defence mechanisms activation during early drought in juvenile A. strobilacea might be regulated initially by ABA-independent pathways and RNS, while ABA-induced responses are triggered at subsequent stages of stress.
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Affiliation(s)
- Victória Carvalho
- Núcleo de Pesquisa em Plantas Ornamentais, Instituto de Botânica de São Paulo, Av. Miguel Estéfano 3687, 04301-902, São Paulo, SP, Brazil.
| | - Marília Gaspar
- Núcleo de Pesquisa em Fisiologia e Bioquímica, Instituto de Botânica de São Paulo, Av. Miguel Estéfano 3687, 04301-902, São Paulo, SP, Brazil.
| | - CatarinaC Nievola
- Núcleo de Pesquisa em Plantas Ornamentais, Instituto de Botânica de São Paulo, Av. Miguel Estéfano 3687, 04301-902, São Paulo, SP, Brazil.
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Littlejohn GR, Breen S, Smirnoff N, Grant M. Chloroplast immunity illuminated. THE NEW PHYTOLOGIST 2021; 229:3088-3107. [PMID: 33206379 DOI: 10.1111/nph.17076] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 09/12/2020] [Indexed: 05/04/2023]
Abstract
The chloroplast has recently emerged as pivotal to co-ordinating plant defence responses and as a target of plant pathogens. Beyond its central position in oxygenic photosynthesis and primary metabolism - key targets in the complex virulence strategies of diverse pathogens - the chloroplast integrates, decodes and responds to environmental signals. The capacity of chloroplasts to synthesize phytohormones and a diverse range of secondary metabolites, combined with retrograde and reactive oxygen signalling, provides exquisite flexibility to both perceive and respond to biotic stresses. These processes also represent a plethora of opportunities for pathogens to evolve strategies to directly or indirectly target 'chloroplast immunity'. This review covers the contribution of the chloroplast to pathogen associated molecular pattern and effector triggered immunity as well as systemic acquired immunity. We address phytohormone modulation of immunity and surmise how chloroplast-derived reactive oxygen species underpin chloroplast immunity through indirect evidence inferred from genetic modification of core chloroplast components and direct pathogen targeting of the chloroplast. We assess the impact of transcriptional reprogramming of nuclear-encoded chloroplast genes during disease and defence and look at future research challenges.
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Affiliation(s)
- George R Littlejohn
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, PL4 8AA, UK
| | - Susan Breen
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
| | - Nicholas Smirnoff
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, EX4 4QD, UK
| | - Murray Grant
- School of Life Sciences, University of Warwick, Coventry, CV4 7AL, UK
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Jedelská T, Luhová L, Petřivalský M. Nitric oxide signalling in plant interactions with pathogenic fungi and oomycetes. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:848-863. [PMID: 33367760 DOI: 10.1093/jxb/eraa596] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 12/18/2020] [Indexed: 05/11/2023]
Abstract
Nitric oxide (NO) and reactive nitrogen species have emerged as crucial signalling and regulatory molecules across all organisms. In plants, fungi, and fungi-like oomycetes, NO is involved in the regulation of multiple processes during their growth, development, reproduction, responses to the external environment, and biotic interactions. It has become evident that NO is produced and used as a signalling and defence cue by both partners in multiple forms of plant interactions with their microbial counterparts, ranging from symbiotic to pathogenic modes. This review summarizes current knowledge on the role of NO in plant-pathogen interactions, focused on biotrophic, necrotrophic, and hemibiotrophic fungi and oomycetes. Actual advances and gaps in the identification of NO sources and fate in plant and pathogen cells are discussed. We review the decisive role of time- and site-specific NO production in germination, oriented growth, and active penetration by filamentous pathogens of the host tissues, as well in pathogen recognition, and defence activation in plants. Distinct functions of NO in diverse interactions of host plants with fungal and oomycete pathogens of different lifestyles are highlighted, where NO in interplay with reactive oxygen species governs successful plant colonization, cell death, and establishment of resistance.
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Affiliation(s)
- Tereza Jedelská
- Department of Biochemistry, Faculty of Science, Palacký University in Olomouc, Olomouc, Czech Republic
| | - Lenka Luhová
- Department of Biochemistry, Faculty of Science, Palacký University in Olomouc, Olomouc, Czech Republic
| | - Marek Petřivalský
- Department of Biochemistry, Faculty of Science, Palacký University in Olomouc, Olomouc, Czech Republic
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Lubega J, Umbreen S, Loake GJ. Recent advances in the regulation of plant immunity by S-nitrosylation. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:864-872. [PMID: 33005916 DOI: 10.1093/jxb/eraa454] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 09/28/2020] [Indexed: 05/16/2023]
Abstract
S-nitrosylation, the addition of a nitric oxide (NO) moiety to a reactive protein cysteine (Cys) thiol, to form a protein S-nitrosothiol (SNO), is emerging as a key regulatory post-translational modification (PTM) to control the plant immune response. NO also S-nitrosylates the antioxidant tripeptide, glutathione, to form S-nitrosoglutathione (GSNO), both a storage reservoir of NO bioactivity and a natural NO donor. GSNO and, by extension, S-nitrosylation, are controlled by GSNO reductase1 (GSNOR1). The emerging data suggest that GSNOR1 itself is a target of NO-mediated S-nitrosylation, which subsequently controls its selective autophagy, regulating cellular protein SNO levels. Recent findings also suggest that S-nitrosylation may be deployed by pathogen-challenged host cells to counteract the effect of delivered microbial effector proteins that promote pathogenesis and by the pathogens themselves to augment virulence. Significantly, it also appears that S-nitrosylation may regulate plant immune functions by controlling SUMOylation, a peptide-based PTM. In this context, global SUMOylation is regulated by S-nitrosylation of SUMO conjugating enzyme 1 (SCE1) at Cys139. This redox-based PTM has also been shown to control the function of a key zinc finger transcriptional regulator during the establishment of plant immunity. Here, we provide an update of these recent advances.
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Affiliation(s)
- Jibril Lubega
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Saima Umbreen
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
| | - Gary J Loake
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
- Centre for Synthetic and Systems Biology, School of Biological Sciences, University of Edinburgh, Edinburgh, UK
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Li ZC, Ren QW, Guo Y, Ran J, Ren XT, Wu NN, Xu HY, Liu X, Liu JZ. Dual Roles of GSNOR1 in Cell Death and Immunity in Tetraploid Nicotiana tabacum. FRONTIERS IN PLANT SCIENCE 2021; 12:596234. [PMID: 33643341 PMCID: PMC7902495 DOI: 10.3389/fpls.2021.596234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 01/04/2021] [Indexed: 06/12/2023]
Abstract
S-nitrosoglutathione reductase 1 (GSNOR1) is the key enzyme that regulates cellular homeostasis of S-nitrosylation. Although extensively studied in Arabidopsis, the roles of GSNOR1 in tetraploid Nicotiana species have not been investigated previously. To study the function of NtGSNOR1, we knocked out two NtGSNOR1 genes simultaneously in Nicotiana tabacum using clustered regularly interspaced short palindromic repeats (CRISPR)/caspase 9 (Cas9) technology. To our surprise, spontaneous cell death occurred on the leaves of the CRISPR/Cas9 lines but not on those of the wild-type (WT) plants, suggesting that NtGSNOR1 negatively regulates cell death. The natural cell death on the CRISPR/Cas9 lines could be a result from interactions between overaccumulated nitric oxide (NO) and hydrogen peroxide (H2O2). This spontaneous cell death phenotype was not affected by knocking out two Enhanced disease susceptibility 1 genes (NtEDS11a/1b) and thus was independent of the salicylic acid (SA) pathway. Unexpectedly, we found that the NtGSNOR1a/1b knockout plants displayed a significantly (p < 0.001) enhanced resistance to paraquat-induced cell death compared to WT plants, suggesting that NtGSNOR1 functions as a positive regulator of the paraquat-induced cell death. The increased resistance to the paraquat-induced cell death of the NtGSNOR1a/1b knockout plants was correlated with the reduced level of H2O2 accumulation. Interestingly, whereas the N gene-mediated resistance to Tobacco mosaic virus (TMV) was significantly enhanced (p < 0.001), the resistance to Pseudomonas syringae pv. tomato DC3000 was significantly reduced (p < 0.01) in the NtGSNOR1a/1b knockout lines. In summary, our results indicate that NtGSNOR1 functions as both positive and negative regulator of cell death under different conditions and displays distinct effects on resistance against viral and bacterial pathogens.
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Affiliation(s)
- Zhen-Chao Li
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
| | - Qian-Wei Ren
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
| | - Yan Guo
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
| | - Jie Ran
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
| | - Xiao-Tian Ren
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
| | - Ni-Ni Wu
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
| | - Hui-Yang Xu
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
| | - Xia Liu
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, Zhejiang Normal University, Jinhua, China
| | - Jian-Zhong Liu
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, China
- Zhejiang Provincial Key Laboratory of Biotechnology on Specialty Economic Plants, Zhejiang Normal University, Jinhua, China
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Jedelská T, Sedlářová M, Lochman J, Činčalová L, Luhová L, Petřivalský M. Protein S-nitrosation differentially modulates tomato responses to infection by hemi-biotrophic oomycetes of Phytophthora spp. HORTICULTURE RESEARCH 2021; 8:34. [PMID: 33518717 PMCID: PMC7848004 DOI: 10.1038/s41438-021-00469-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 12/12/2020] [Accepted: 12/17/2020] [Indexed: 05/04/2023]
Abstract
Regulation of protein function by reversible S-nitrosation, a post-translational modification based on the attachment of nitroso group to cysteine thiols, has emerged among key mechanisms of NO signalling in plant development and stress responses. S-nitrosoglutathione is regarded as the most abundant low-molecular-weight S-nitrosothiol in plants, where its intracellular concentrations are modulated by S-nitrosoglutathione reductase. We analysed modulations of S-nitrosothiols and protein S-nitrosation mediated by S-nitrosoglutathione reductase in cultivated Solanum lycopersicum (susceptible) and wild Solanum habrochaites (resistant genotype) up to 96 h post inoculation (hpi) by two hemibiotrophic oomycetes, Phytophthora infestans and Phytophthora parasitica. S-nitrosoglutathione reductase activity and protein level were decreased by P. infestans and P. parasitica infection in both genotypes, whereas protein S-nitrosothiols were increased by P. infestans infection, particularly at 72 hpi related to pathogen biotrophy-necrotrophy transition. Increased levels of S-nitrosothiols localised in both proximal and distal parts to the infection site, which suggests together with their localisation to vascular bundles a signalling role in systemic responses. S-nitrosation targets in plants infected with P. infestans identified by a proteomic analysis include namely antioxidant and defence proteins, together with important proteins of metabolic, regulatory and structural functions. Ascorbate peroxidase S-nitrosation was observed in both genotypes in parallel to increased enzyme activity and protein level during P. infestans pathogenesis, namely in the susceptible genotype. These results show important regulatory functions of protein S-nitrosation in concerting molecular mechanisms of plant resistance to hemibiotrophic pathogens.
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Affiliation(s)
- Tereza Jedelská
- Department of Biochemistry, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Michaela Sedlářová
- Department of Botany, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Jan Lochman
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 753/5, CZ-625 00, Brno, Czech Republic
| | - Lucie Činčalová
- Department of Biochemistry, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Lenka Luhová
- Department of Biochemistry, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Marek Petřivalský
- Department of Biochemistry, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic.
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37
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The Physiological Implications of S-Nitrosoglutathione Reductase (GSNOR) Activity Mediating NO Signalling in Plant Root Structures. Antioxidants (Basel) 2020; 9:antiox9121206. [PMID: 33266126 PMCID: PMC7760381 DOI: 10.3390/antiox9121206] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/22/2020] [Accepted: 11/27/2020] [Indexed: 12/12/2022] Open
Abstract
Nitrogen remains an important macronutrient in plant root growth due to its application in amino acid production, in addition to its more elusive role in cellular signalling through nitric oxide (NO). NO is widely accepted as an important signalling oxidative radical across all organisms, leading to its study in a wide range of biological pathways. Along with its more stable NO donor, S-nitrosoglutathione (GSNO), formed by NO non-enzymatically in the presence of glutathione (GSH), NO is a redox-active molecule capable of mediating target protein cysteine thiols through the post translational modification, S-nitrosation. S-nitrosoglutathione reductase (GSNOR) thereby acts as a mediator to pathways regulated by NO due to its activity in the irreversible reduction of GSNO to oxidized glutathione (GSSG) and ammonia. GSNOR is thought to be pleiotropic and often acts by mediating the cellular environment in response to stress conditions. Under optimal conditions its activity leads to growth by transcriptional upregulation of the nitrate transporter, NRT2.1, and through its interaction with phytohormones like auxin and strigolactones associated with root development. However, in response to highly nitrosative and oxidative conditions its activity is often downregulated, possibly through an S-nitrosation site on GSNOR at cys271, Though GSNOR knockout mutated plants often display a stunted growth phenotype in all structures, they also tend to exhibit a pre-induced protective effect against oxidative stressors, as well as an improved immune response associated with NO accumulation in roots.
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38
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Hancock JT. Nitric Oxide Signaling in Plants. PLANTS (BASEL, SWITZERLAND) 2020; 9:E1550. [PMID: 33198158 PMCID: PMC7697264 DOI: 10.3390/plants9111550] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 11/10/2020] [Indexed: 02/07/2023]
Abstract
Nitric oxide (NO) is an integral part of cell signaling mechanisms in animals and plants. In plants, its enzymatic generation is still controversial. Evidence points to nitrate reductase being important, but the presence of a nitric oxide synthase-like enzyme is still contested. Regardless, NO has been shown to mediate many developmental stages in plants, and to be involved in a range of physiological responses, from stress management to stomatal aperture closure. Downstream from its generation are alterations of the actions of many cell signaling components, with post-translational modifications of proteins often being key. Here, a collection of papers embraces the differing aspects of NO metabolism in plants.
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Affiliation(s)
- John T Hancock
- Department of Applied Sciences, University of the West of England, Bristol BS16 1QY, UK
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Lechón T, Sanz L, Sánchez-Vicente I, Lorenzo O. Nitric Oxide Overproduction by cue1 Mutants Differs on Developmental Stages and Growth Conditions. PLANTS (BASEL, SWITZERLAND) 2020; 9:E1484. [PMID: 33158046 PMCID: PMC7692804 DOI: 10.3390/plants9111484] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/27/2020] [Accepted: 11/02/2020] [Indexed: 01/26/2023]
Abstract
The cue1 nitric oxide (NO) overproducer mutants are impaired in a plastid phosphoenolpyruvate/phosphate translocator, mainly expressed in Arabidopsis thaliana roots. cue1 mutants present an increased content of arginine, a precursor of NO in oxidative synthesis processes. However, the pathways of plant NO biosynthesis and signaling have not yet been fully characterized, and the role of CUE1 in these processes is not clear. Here, in an attempt to advance our knowledge regarding NO homeostasis, we performed a deep characterization of the NO production of four different cue1 alleles (cue1-1, cue1-5, cue1-6 and nox1) during seed germination, primary root elongation, and salt stress resistance. Furthermore, we analyzed the production of NO in different carbon sources to improve our understanding of the interplay between carbon metabolism and NO homeostasis. After in vivo NO imaging and spectrofluorometric quantification of the endogenous NO levels of cue1 mutants, we demonstrate that CUE1 does not directly contribute to the rapid NO synthesis during seed imbibition. Although cue1 mutants do not overproduce NO during germination and early plant development, they are able to accumulate NO after the seedling is completely established. Thus, CUE1 regulates NO homeostasis during post-germinative growth to modulate root development in response to carbon metabolism, as different sugars modify root elongation and meristem organization in cue1 mutants. Therefore, cue1 mutants are a useful tool to study the physiological effects of NO in post-germinative growth.
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Affiliation(s)
| | | | | | - Oscar Lorenzo
- Department of Botany and Plant Physiology, Instituto Hispano-Luso de Investigaciones Agrarias (CIALE), Facultad de Biología, Universidad de Salamanca, C/Río Duero 12, 37185 Salamanca, Spain; (T.L.); (L.S.); (I.S.-V.)
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Rolly NK, Imran QM, Shahid M, Imran M, Khan M, Lee SU, Hussain A, Lee IJ, Yun BW. Drought-induced AtbZIP62 transcription factor regulates drought stress response in Arabidopsis. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 156:384-395. [PMID: 33007532 DOI: 10.1016/j.plaphy.2020.09.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 09/09/2020] [Indexed: 06/11/2023]
Abstract
We investigated the role of AtbZIP62, an uncharacterized Arabidopsis bZIP TF, in oxidative, nitro-oxidative and drought stress conditions using reverse genetics approach. We further monitored the expression of AtPYD1 gene (orthologous to rice OsDHODH1 involved in the pyrimidine biosynthesis) in atbzip62 knock-out (KO) plants in order to investigate the transcriptional interplay of AtbZIP62 and AtPYD1. The atbzip62 KO plants showed significant increase in shoot length under oxidative stress, while no significant difference was recorded for root length compared to WT. However, under nitro-oxidative stress conditions, atbzip62 showed differential response to both NO-donors. Further characterization of AtbZIP62 under drought conditions showed that both atbzip62 and atpyd1-2 showed a sensitive phenotype to drought stress, and could not recover after re-watering. Transcript accumulation of AtbZIP62 and AtPYD1 showed that both were highly up-regulated by drought stress in wild type (WT) plants. Interestingly, AtPYD1 transcriptional level significantly decreased in atbzip62 exposed to drought stress. However, AtbZIP62 expression was highly induced in atpyd1-2 under the same conditions. Both AtbZIP62 and AtPYD1 were up-regulated in atnced3 and atcat2 while showing a contrasting expression pattern in atgsnor1-3. The recorded increase in CAT, POD, and PPO-like activities, the accumulation of chlorophylls and total carotenoids, and the enhanced proline and malondialdehyde levels would explain the sensitivity level of atbzip62 towards drought stress. All results collectively suggest that AtbZIP62 could be involved in AtPYD1 transcriptional regulation while modulating cellular redox state and photosynthetic processes. In addition, AtbZIP62 is suggested to positively regulate drought stress response in Arabidopsis.
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Affiliation(s)
- Nkulu Kabange Rolly
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea; National Laboratory of Seed Testing, National Seed Service, SENASEM, Ministry of Agriculture, Kinshasa, Democratic Republic of the Congo.
| | - Qari Muhammad Imran
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea.
| | - Muhammad Shahid
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea.
| | - Muhammad Imran
- Laboratory of Crop Physiology, School of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea.
| | - Murtaza Khan
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea.
| | - Sang-Uk Lee
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea.
| | - Adil Hussain
- Department of Agriculture, Abdul Wali Khan University, Mardan, 23200, KP, Pakistan.
| | - In-Jung Lee
- Laboratory of Crop Physiology, School of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea.
| | - Byung-Wook Yun
- Laboratory of Plant Functional Genomics, School of Applied Biosciences, Kyungpook National University, Daegu, Republic of Korea.
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Jedelská T, Luhová L, Petřivalský M. Thioredoxins: Emerging Players in the Regulation of Protein S-Nitrosation in Plants. PLANTS (BASEL, SWITZERLAND) 2020; 9:E1426. [PMID: 33114295 PMCID: PMC7690881 DOI: 10.3390/plants9111426] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/22/2020] [Accepted: 10/22/2020] [Indexed: 02/01/2023]
Abstract
S-nitrosation has been recognized as an important mechanism of ubiquitous posttranslational modification of proteins on the basis of the attachment of the nitroso group to cysteine thiols. Reversible S-nitrosation, similarly to other redox-based modifications of protein thiols, has a profound effect on protein structure and activity and is considered as a convergence of signaling pathways of reactive nitrogen and oxygen species. This review summarizes the current knowledge on the emerging role of the thioredoxin-thioredoxin reductase (TRXR-TRX) system in protein denitrosation. Important advances have been recently achieved on plant thioredoxins (TRXs) and their properties, regulation, and functions in the control of protein S-nitrosation in plant root development, translation of photosynthetic light harvesting proteins, and immune responses. Future studies of plants with down- and upregulated TRXs together with the application of genomics and proteomics approaches will contribute to obtain new insights into plant S-nitrosothiol metabolism and its regulation.
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Affiliation(s)
| | | | - Marek Petřivalský
- Department of Biochemistry, Faculty of Science, Palacký University, Šlechtitelů 27, 78371 Olomouc, Czech Republic; (T.J.); (L.L.)
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Jahnová J, Činčalová L, Sedlářová M, Jedelská T, Sekaninová J, Mieslerová B, Luhová L, Barroso JB, Petřivalský M. Differential modulation of S-nitrosoglutathione reductase and reactive nitrogen species in wild and cultivated tomato genotypes during development and powdery mildew infection. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2020; 155:297-310. [PMID: 32795911 DOI: 10.1016/j.plaphy.2020.06.039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 06/22/2020] [Accepted: 06/24/2020] [Indexed: 05/03/2023]
Abstract
Nitric oxide plays an important role in the pathogenesis of Pseudoidium neolycopersici, the causative agent of tomato powdery mildew. S-nitrosoglutathione reductase, the key enzyme of S-nitrosothiol homeostasis, was investigated during plant development and following infection in three genotypes of Solanum spp. differing in their resistance to P. neolycopersici. Levels and localization of reactive nitrogen species (RNS) including NO, S-nitrosoglutathione (GSNO) and peroxynitrite were studied together with protein nitration and the activity of nitrate reductase (NR). GSNOR expression profiles and enzyme activities were modulated during plant development and important differences among Solanum spp. genotypes were observed, accompanied by modulation of NO, GSNO, peroxynitrite and nitrated proteins levels. GSNOR was down-regulated in infected plants, with exception of resistant S. habrochaites early after inoculation. Modulations of GSNOR activities in response to pathogen infection were found also on the systemic level in leaves above and below the inoculation site. Infection strongly increased NR activity and gene expression in resistant S. habrochaites in contrast to susceptible S. lycopersicum. Obtained data confirm the key role of GSNOR and modulations of RNS during plant development under normal conditions and point to their involvement in molecular mechanisms of tomato responses to biotrophic pathogens on local and systemic levels.
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Affiliation(s)
- Jana Jahnová
- Department of Biochemistry, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Lucie Činčalová
- Department of Biochemistry, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Michaela Sedlářová
- Department of Botany, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Tereza Jedelská
- Department of Biochemistry, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Jana Sekaninová
- Department of Biochemistry, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Barbora Mieslerová
- Department of Botany, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Lenka Luhová
- Department of Biochemistry, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - Juan B Barroso
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Experimental Biology, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, Campus Universitario "Las Lagunillas" s/n, University of Jaén, E-23071, Jaén, Spain
| | - Marek Petřivalský
- Department of Biochemistry, Faculty of Science, Palacký University in Olomouc, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic.
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Gupta KJ, Kolbert Z, Durner J, Lindermayr C, Corpas FJ, Brouquisse R, Barroso JB, Umbreen S, Palma JM, Hancock JT, Petrivalsky M, Wendehenne D, Loake GJ. Regulating the regulator: nitric oxide control of post-translational modifications. THE NEW PHYTOLOGIST 2020; 227:1319-1325. [PMID: 32339293 DOI: 10.1111/nph.16622] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 04/07/2020] [Indexed: 05/09/2023]
Abstract
Nitric oxide (NO) is perfectly suited for the role of a redox signalling molecule. A key route for NO bioactivity occurs via protein S-nitrosation, and involves the addition of a NO moiety to a protein cysteine (Cys) thiol (-SH) to form an S-nitrosothiol (SNO). This process is thought to underpin a myriad of cellular processes in plants that are linked to development, environmental responses and immune function. Here we collate emerging evidence showing that NO bioactivity regulates a growing number of diverse post-translational modifications including SUMOylation, phosphorylation, persulfidation and acetylation. We provide examples of how NO orchestrates these processes to mediate plant adaptation to a variety of cellular cues.
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Affiliation(s)
| | - Zsuzsanna Kolbert
- Department of Plant Biology, University of Szeged, Szeged, 6726, Hungary
| | - Jorg Durner
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München - German Research Center for Environmental Health, München/Neuherberg, 85764, Germany
| | - Christian Lindermayr
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München - German Research Center for Environmental Health, München/Neuherberg, 85764, Germany
| | - Francisco J Corpas
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry and Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Profesor Albareda 1, 18008, Granada, Spain
| | - Renaud Brouquisse
- Institut Sophia Agrobiotech, INRAE, CNRS, Université Côte d'Azur, 06903, Sophia Antipolis Cedex, France
| | - Juan B Barroso
- Group of Biochemistry and Cell Signaling in Nitric Oxide, Department of Experimental Biology, Center for Advanced Studies in Olive Grove and Olive Oils, Faculty of Experimental Sciences, University of Jaén, Campus Universitario 'Las Lagunillas' s/n, Jaén, 23071, Spain
| | - Saima Umbreen
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3BF, UK
| | - José M Palma
- Group of Antioxidants, Free Radicals and Nitric Oxide in Biotechnology, Food and Agriculture, Department of Biochemistry and Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Profesor Albareda 1, 18008, Granada, Spain
| | - John T Hancock
- Department of Applied Sciences, University of the West of England, Bristol, BS16 1QY, UK
| | - Marek Petrivalsky
- Department of Biochemistry, Faculty of Science, Palacký University, Šlechtitelů 27, CZ-783 71, Olomouc, Czech Republic
| | - David Wendehenne
- Agroécologie, AgroSup Dijon, CNRS, INRAE, Univ. Bourgogne Franche-Comté, 21000, Dijon, France
| | - Gary J Loake
- Institute of Molecular Plant Sciences, School of Biological Sciences, University of Edinburgh, Edinburgh, EH9 3BF, UK
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Berger A, Guinand S, Boscari A, Puppo A, Brouquisse R. Medicago truncatula Phytoglobin 1.1 controls symbiotic nodulation and nitrogen fixation via the regulation of nitric oxide concentration. THE NEW PHYTOLOGIST 2020; 227:84-98. [PMID: 32003030 PMCID: PMC7317445 DOI: 10.1111/nph.16462] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 01/19/2020] [Indexed: 05/04/2023]
Abstract
In legumes, phytoglobins (Phytogbs) are known to regulate nitric oxide (NO) during early phase of the nitrogen-fixing symbiosis and to buffer oxygen in functioning nodules. However, their expression profile and respective role in NO control at each stage of the symbiosis remain little-known. We first surveyed the Phytogb genes occurring in Medicago truncatula genome. We analyzed their expression pattern and NO production from inoculation with Sinorhizobium meliloti up to 8 wk post-inoculation. Finally, using overexpression and silencing strategy, we addressed the role of the Phytogb1.1-NO couple in the symbiosis. Three peaks of Phytogb expression and NO production were detected during the symbiotic process. NO upregulates Phytogbs1 expression and downregulates Lbs and Phytogbs3 ones. Phytogb1.1 silencing and overexpression experiments reveal that Phytogb1.1-NO couple controls the progression of the symbiosis: high NO concentration promotes defense responses and nodular organogenesis, whereas low NO promotes the infection process and nodular development. Both NO excess and deficiency provoke a 30% inhibition of nodule establishment. In mature nodules, Phytogb1.1 regulates NO to limit its toxic effects while allowing the functioning of Phytogb-NO respiration to maintain the energetic state. This work highlights the regulatory role played by Phytogb1.1-NO couple in the successive stages of symbiosis.
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Affiliation(s)
- Antoine Berger
- Institut Sophia AgrobiotechUMR INRAE 1355CNRS 7254Université Côte d'Azur400 route des Chappes, BP 16706903Sophia AntipolisFrance
| | - Sophie Guinand
- Institut Sophia AgrobiotechUMR INRAE 1355CNRS 7254Université Côte d'Azur400 route des Chappes, BP 16706903Sophia AntipolisFrance
| | - Alexandre Boscari
- Institut Sophia AgrobiotechUMR INRAE 1355CNRS 7254Université Côte d'Azur400 route des Chappes, BP 16706903Sophia AntipolisFrance
| | - Alain Puppo
- Institut Sophia AgrobiotechUMR INRAE 1355CNRS 7254Université Côte d'Azur400 route des Chappes, BP 16706903Sophia AntipolisFrance
| | - Renaud Brouquisse
- Institut Sophia AgrobiotechUMR INRAE 1355CNRS 7254Université Côte d'Azur400 route des Chappes, BP 16706903Sophia AntipolisFrance
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Zhang T, Ma M, Chen T, Zhang L, Fan L, Zhang W, Wei B, Li S, Xuan W, Noctor G, Han Y. Glutathione-dependent denitrosation of GSNOR1 promotes oxidative signalling downstream of H 2 O 2. PLANT, CELL & ENVIRONMENT 2020; 43:1175-1191. [PMID: 31990075 DOI: 10.1111/pce.13727] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/16/2020] [Accepted: 01/17/2020] [Indexed: 06/10/2023]
Abstract
Photorespiratory hydrogen peroxide (H2 O2 ) plays key roles in pathogenesis responses by triggering the salicylic acid (SA) pathway in Arabidopsis. However, factors linking intracellular H2 O2 to activation of the SA pathway remain elusive. In this work, the catalase-deficient Arabidopsis mutant, cat2, was exploited to elucidate the impact of S-nitrosoglutathione reductase 1 (GSNOR1) on H2 O2 -dependent signalling pathways. Introducing the gsnor1-3 mutation into the cat2 background increased S-nitrosothiol levels and abolished cat2-triggered cell death, SA accumulation, and associated gene expression but had little additional effect on the major components of the ascorbate-glutathione system or glycolate oxidase activities. Differential transcriptome profiles between gsnor1-3 and cat2 gsnor1-3 together with damped ROS-triggered gene expression in cat2 gsnor1-3 further indicated that GSNOR1 acts to mediate the SA pathway downstream of H2 O2 . Up-regulation of GSNOR activity was compromised in cat2 cad2 and cat2 pad2 mutants in which glutathione accumulation was genetically prevented. Experiments with purified recombinant GSNOR revealed that the enzyme is posttranslationally regulated by direct denitrosation in a glutathione-dependent manner. Together, our findings identify GSNOR1-controlled nitrosation as a key factor in activation of the SA pathway by H2 O2 and reveal that glutathione is required to maintain this biological function.
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Affiliation(s)
- Tianru Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, China
| | - Mingyue Ma
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, China
| | - Tao Chen
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, China
| | - Linlin Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, China
| | - Lingling Fan
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, China
| | - Wei Zhang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, China
| | - Bo Wei
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, China
| | - Shengchun Li
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan, China
| | - Wei Xuan
- State Key Laboratory of Crop Genetics and Germplasm Enhancement and MOA Key Laboratory of Plant Nutrition and Fertilization in Lower-Middle Reaches of the Yangtze River, Nanjing Agricultural University, Nanjing, China
| | - Graham Noctor
- Institute of Plant Sciences Paris Saclay IPS2, Université Paris-Sud, CNRS, INRA, Université Evry, Paris Diderot, Sorbonne Paris-Cité, Université Paris-Saclay, Orsay, France
- Institut Universitaire de France, Paris, France
| | - Yi Han
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, China
- Engineering Research Center of Bio-process, Ministry of Education, Hefei University of Technology, Hefei, China
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46
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Cheng Y, Lin Y, Cao H, Li Z. Citrus Postharvest Green Mold: Recent Advances in Fungal Pathogenicity and Fruit Resistance. Microorganisms 2020; 8:E449. [PMID: 32209982 PMCID: PMC7143998 DOI: 10.3390/microorganisms8030449] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 03/10/2020] [Accepted: 03/21/2020] [Indexed: 01/04/2023] Open
Abstract
As the major postharvest disease of citrus fruit, postharvest green mold is caused by the necrotrophic fungus Penicillium digitatum (Pd), which leads to huge economic losses worldwide. Fungicides are still the main method currently used to control postharvest green mold in citrus fruit storage. Investigating molecular mechanisms of plant-pathogen interactions, including pathogenicity and plant resistance, is crucial for developing novel and safer strategies for effectively controlling plant diseases. Despite fruit-pathogen interactions remaining relatively unexplored compared with well-studied leaf-pathogen interactions, progress has occurred in the citrus fruit-Pd interaction in recent years, mainly due to their genome sequencing and establishment or optimization of their genetic transformation systems. Recent advances in Pd pathogenicity on citrus fruit and fruit resistance against Pd infection are summarized in this review.
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Affiliation(s)
- Yulin Cheng
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 401331, China (H.C.)
- Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing 401331, China
| | - Yunlong Lin
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 401331, China (H.C.)
- Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing 401331, China
| | - Haohao Cao
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 401331, China (H.C.)
- Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing 401331, China
| | - Zhengguo Li
- Key Laboratory of Plant Hormones and Development Regulation of Chongqing, School of Life Sciences, Chongqing University, Chongqing 401331, China (H.C.)
- Center of Plant Functional Genomics, Institute of Advanced Interdisciplinary Studies, Chongqing University, Chongqing 401331, China
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47
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Rai KK, Pandey N, Rai SP. Salicylic acid and nitric oxide signaling in plant heat stress. PHYSIOLOGIA PLANTARUM 2020; 168:241-255. [PMID: 30843232 DOI: 10.1111/ppl.12958] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 02/09/2019] [Accepted: 03/02/2019] [Indexed: 05/28/2023]
Abstract
In agriculture, heat stress (HS) has become one of the eminent abiotic threats to crop growth, productivity and nutritional security because of the continuous increase in global mean temperature. Studies have annotated that the heat stress response (HSR) in plants is highly conserved, involving complex regulatory networks of various signaling and sensor molecules. In this context, the ubiquitous-signaling molecules salicylic acid (SA) and nitric oxide (NO) have diverted the attention of the plant science community because of their putative roles in plant abiotic and biotic stress tolerance. However, their involvement in the transcriptional regulatory networks in plant HS tolerance is still poorly understood. In this review, we have conceptualized current knowledge concerning how SA and NO sense HS in plants and how they trigger the HSR leading to the activation of transcriptional-signaling cascades. Fundamentals of functional components and signaling networks associated with molecular mechanisms involved in SA/NO-mediated HSR in plants have also been discussed. Increasing evidences have suggested the involvement of epigenetic modifications in the development of a 'stress memory', thereby provoking the role of epigenetic mechanisms in the regulation of plant's innate immunity under HS. Thus, we have also explored the recent advancements regarding the biological mechanisms and the underlying significance of epigenetic regulations involved in the activation of HS responsive genes and transcription factors by providing conceptual frameworks for understanding molecular mechanisms behind the 'transcriptional stress memory' as potential memory tools in the regulation of plant HSR.
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Affiliation(s)
- Krishna K Rai
- Centre of Advance Study in Botany, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
| | - Neha Pandey
- Centre of Advance Study in Botany, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
- Department of Botany, CMP Degree College, University of Allahabad, Prayagraj, India
| | - Shashi P Rai
- Centre of Advance Study in Botany, Department of Botany, Institute of Science, Banaras Hindu University, Varanasi, 221005, India
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48
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Arnaiz A, Rosa-Diaz I, Romero-Puertas MC, Sandalio LM, Diaz I. Nitric Oxide, an Essential Intermediate in the Plant-Herbivore Interaction. FRONTIERS IN PLANT SCIENCE 2020; 11:620086. [PMID: 33488661 PMCID: PMC7819962 DOI: 10.3389/fpls.2020.620086] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 11/24/2020] [Indexed: 05/02/2023]
Abstract
Reactive nitrogen species (RNS), mainly nitric oxide (NO), are highly reactive molecules with a prominent role in plant response to numerous stresses including herbivores, although the information is still very limited. This perspective article compiles the current progress in determining the NO function, as either a signal molecule, a metabolic intermediate, or a toxic oxidative product, as well as the contribution of molecules associated with NO metabolic pathway in the generation of plant defenses against phytophagous arthropods, in particular to insects and acari.
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Affiliation(s)
- Ana Arnaiz
- Centro de Biotecnologia y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid, Madrid, Spain
| | - Irene Rosa-Diaz
- Centro de Biotecnologia y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid, Madrid, Spain
| | - Maria C. Romero-Puertas
- Department of Biochemistry and Molecular and Cellular Biology of Plants, Estación Experimental del Zaidín, CSIC, Granada, Spain
| | - Luisa M. Sandalio
- Department of Biochemistry and Molecular and Cellular Biology of Plants, Estación Experimental del Zaidín, CSIC, Granada, Spain
| | - Isabel Diaz
- Centro de Biotecnologia y Genómica de Plantas, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Universidad Politécnica de Madrid, Madrid, Spain
- Departamento de Biotecnología-Biología Vegetal, Escuela Técnica Superior de Ingeniería Agronómica, Alimentaria y de Biosistemas, Universidad Politécnica de Madrid, Madrid, Spain
- *Correspondence: Isabel Diaz,
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León J, Costa-Broseta Á. Present knowledge and controversies, deficiencies, and misconceptions on nitric oxide synthesis, sensing, and signaling in plants. PLANT, CELL & ENVIRONMENT 2020; 43. [PMID: 31323702 DOI: 10.1111/pce.13617] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 07/15/2019] [Indexed: 05/17/2023]
Abstract
After 30 years of intensive work, nitric oxide (NO) has just started to be characterized as a relevant regulatory molecule on plant development and responses to stress. Its reactivity as a free radical determines its mode of action as an inducer of posttranslational modifications of key target proteins through cysteine S-nitrosylation and tyrosine nitration. Many of the NO-triggered regulatory actions are exerted in tight coordination with phytohormone signaling. This review not only summarizes and updates the information accumulated on how NO is synthesized, sensed, and transduced in plants but also makes emphasis on controversies, deficiencies, and misconceptions that are hampering our present knowledge on the biology of NO in plants. The development of noninvasive accurate tools for the endogenous NO quantitation as well as the implementation of genetic approaches that overcome misleading pharmacological experiments will be critical for getting significant advances in better knowledge of NO homeostasis and regulatory actions in plants.
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Affiliation(s)
- José León
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas, Universidad Politécnica de Valencia, 46022, Valencia, Spain
| | - Álvaro Costa-Broseta
- Instituto de Biología Molecular y Celular de Plantas, Consejo Superior de Investigaciones Científicas, Universidad Politécnica de Valencia, 46022, Valencia, Spain
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50
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Khan M, Imran QM, Shahid M, Mun BG, Lee SU, Khan MA, Hussain A, Lee IJ, Yun BW. Nitric oxide- induced AtAO3 differentially regulates plant defense and drought tolerance in Arabidopsis thaliana. BMC PLANT BIOLOGY 2019; 19:602. [PMID: 31888479 PMCID: PMC6937950 DOI: 10.1186/s12870-019-2210-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 12/18/2019] [Indexed: 05/29/2023]
Abstract
BACKGROUND Exposure of plants to different environmental insults instigates significant changes in the cellular redox tone driven in part by promoting the production of reactive nitrogen species. The key player, nitric oxide (NO) is a small gaseous diatomic molecule, well-known for its signaling role during stress. In this study, we focused on abscisic acid (ABA) metabolism-related genes that showed differential expression in response to the NO donor S-nitroso-L-cysteine (CySNO) by conducting RNA-seq-based transcriptomic analysis. RESULTS CySNO-induced ABA-related genes were identified and further characterized. Gene ontology terms for biological processes showed most of the genes were associated with protein phosphorylation. Promoter analysis suggested that several cis-regulatory elements were activated under biotic and/or abiotic stress conditions. The ABA biosynthetic gene AtAO3 was selected for validation using functional genomics. The loss of function mutant atao3 was found to differentially regulate oxidative and nitrosative stress. Further investigations for determining the role of AtAO3 in plant defense suggested a negative regulation of plant basal defense and R-gene-mediated resistance. The atao3 plants showed resistance to virulent Pseudomonas syringae pv. tomato strain DC3000 (Pst DC3000) with gradual increase in PR1 gene expression. Similarly, atao3 plants showed increased hypersensitive response (HR) when challenged with Pst DC3000 (avrB). The atgsnor1-3 and atsid2 mutants showed a susceptible phenotype with reduced PR1 transcript accumulation. Drought tolerance assay indicated that atao3 and atnced3 ABA-deficient mutants showed early wilting, followed by plant death. The study of stomatal structure showed that atao3 and atnced3 were unable to close stomata even at 7 days after drought stress. Further, they showed reduced ABA content and increased electrolyte leakage than the wild-type (WT) plants. The quantitative polymerase chain reaction analysis suggested that ABA biosynthesis genes were down-regulated, whereas expression of most of the drought-related genes were up-regulated in atao3 than in WT. CONCLUSIONS AtAO3 negatively regulates pathogen-induced salicylic acid pathway, although it is required for drought tolerance, despite the fact that ABA production is not totally dependent on AtAO3, and that drought-related genes like DREB2 and ABI2 show response to drought irrespective of ABA content.
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Affiliation(s)
| | | | | | - Bong-Gyu Mun
- Laboratory of Plant Functional Genomics Department of Plant Biosciences, Kyungpook National University, Daegu, Republic of Korea
| | - Sang-Uk Lee
- Laboratory of Plant Functional Genomics Department of Plant Biosciences, Kyungpook National University, Daegu, Republic of Korea
| | - Muhammad Aaqil Khan
- Laboratory of Plant Physiology, Department of Plant Biosciences, Kyungpook National University, Daegu, Republic of Korea
| | - Adil Hussain
- Department of Agriculture, Abdul Wali Khan University, KPK, Mardan, Pakistan
| | - In-Jung Lee
- Laboratory of Plant Physiology, Department of Plant Biosciences, Kyungpook National University, Daegu, Republic of Korea
| | - Byung-Wook Yun
- Laboratory of Plant Functional Genomics Department of Plant Biosciences, Kyungpook National University, Daegu, Republic of Korea
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