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Liu C, Chang X, Li F, Yan Y, Zuo X, Huang G, Li R. Transcriptome analysis of Citrus sinensis reveals potential responsive events triggered by Candidatus Liberibacter asiaticus. PROTOPLASMA 2024; 261:499-512. [PMID: 38092896 DOI: 10.1007/s00709-023-01911-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 12/01/2023] [Indexed: 04/18/2024]
Abstract
Citrus Huanglongbing (HLB), caused by Candidatus Liberibacter asiaticus (CLas), is a devastating immune-mediated disorder that has a detrimental effect on the citrus industry, with the distinguishing feature being an eruption of reactive oxygen species (ROS). This study explored the alterations in antioxidant enzyme activity, transcriptome, and RNA editing events of organelles in C. sinensis during CLas infection. Results indicated that there were fluctuations in the performance of antioxidant enzymes, such as ascorbate peroxidase (APX), catalase (CAT), glutathione reductase (GR), peroxidase (POD), and superoxide dismutase (SOD), in plants affected by HLB. Transcriptome analysis revealed 3604 genes with altered expression patterns between CLas-infected and healthy samples, including those associated with photosynthesis, biotic interactions, and phytohormones. Samples infected with CLas showed a decrease in the expression of most genes associated with photosynthesis and gibberellin metabolism. It was discovered that RNA editing frequency and the expression level of various genes in the chloroplast and mitochondrion genomes were affected by CLas infection. Our findings provide insights into the inhibition of photosynthesis, gibberellin metabolism, and antioxidant enzymes during CLas infection in C. sinensis.
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Affiliation(s)
- Chang Liu
- College of Life Sciences, Gannan Normal University, Ganzhou, 341000, Jiangxi, China
| | - Xiaopeng Chang
- College of Life Sciences, Gannan Normal University, Ganzhou, 341000, Jiangxi, China
| | - Fuxuan Li
- College of Life Sciences, Gannan Normal University, Ganzhou, 341000, Jiangxi, China
| | - Yana Yan
- College of Life Sciences, Gannan Normal University, Ganzhou, 341000, Jiangxi, China
| | - Xiru Zuo
- College of Life Sciences, Gannan Normal University, Ganzhou, 341000, Jiangxi, China
| | - Guiyan Huang
- College of Life Sciences, Gannan Normal University, Ganzhou, 341000, Jiangxi, China.
| | - Ruimin Li
- College of Life Sciences, Gannan Normal University, Ganzhou, 341000, Jiangxi, China.
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Entila F, Han X, Mine A, Schulze-Lefert P, Tsuda K. Commensal lifestyle regulated by a negative feedback loop between Arabidopsis ROS and the bacterial T2SS. Nat Commun 2024; 15:456. [PMID: 38212332 PMCID: PMC10784570 DOI: 10.1038/s41467-024-44724-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 01/02/2024] [Indexed: 01/13/2024] Open
Abstract
Despite the plant health-promoting effects of plant microbiota, these assemblages also comprise potentially detrimental microbes. How plant immunity controls its microbiota to promote plant health under these conditions remains largely unknown. We find that commensal bacteria isolated from healthy Arabidopsis plants trigger diverse patterns of reactive oxygen species (ROS) production dependent on the immune receptors and completely on the NADPH oxidase RBOHD that selectively inhibited specific commensals, notably Xanthomonas L148. Through random mutagenesis, we find that L148 gspE, encoding a type II secretion system (T2SS) component, is required for the damaging effects of Xanthomonas L148 on rbohD mutant plants. In planta bacterial transcriptomics reveals that RBOHD suppresses most T2SS gene expression including gspE. L148 colonization protected plants against a bacterial pathogen, when gspE was inhibited by ROS or mutation. Thus, a negative feedback loop between Arabidopsis ROS and the bacterial T2SS tames a potentially detrimental leaf commensal and turns it into a microbe beneficial to the host.
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Affiliation(s)
- Frederickson Entila
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- Department of Plant Microbe Interactions, Max Planck Institute for Plant Breeding Research, Carl-von-Linne-Weg 10, Cologne, 50829, Germany
| | - Xiaowei Han
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China
- Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Wuhan, 430070, China
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong, 518120, China
| | - Akira Mine
- JST PRESTO, Kawaguchi-shi, Saitama, 332-0012, Japan
- Laboratory of Plant Pathology, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan
| | - Paul Schulze-Lefert
- Department of Plant Microbe Interactions, Max Planck Institute for Plant Breeding Research, Carl-von-Linne-Weg 10, Cologne, 50829, Germany
| | - Kenichi Tsuda
- National Key Laboratory of Agricultural Microbiology, Hubei Hongshan Laboratory, Hubei Key Laboratory of Plant Pathology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, 430070, China.
- Department of Plant Microbe Interactions, Max Planck Institute for Plant Breeding Research, Carl-von-Linne-Weg 10, Cologne, 50829, Germany.
- Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Wuhan, 430070, China.
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, Guangdong, 518120, China.
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Naveenkumar R, Anandan A, Singh V, Prabhukarthikeyan S, Parameswaran C, Sangeetha G, Mahender A, Keerthana U, Singh P, Patra B, Ali J. Deciphering environmental factors and defense response of rice genotypes against sheath blight disease. PHYSIOLOGICAL AND MOLECULAR PLANT PATHOLOGY 2022; 122:101916. [PMID: 36405863 PMCID: PMC9669783 DOI: 10.1016/j.pmpp.2022.101916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 09/06/2022] [Accepted: 09/15/2022] [Indexed: 06/16/2023]
Abstract
Sheath blight (ShB) is one of the most serious diseases in rice, leading to severe yield losses globally. In our study, we evaluated a total of 63 rice genotypes for resistance against sheath blight disease by artificial inoculation over two seasons under field conditions and studied the weather parameters associated with disease incidence. Based on two years of testing, 23 genotypes were found moderately resistant, 38 were moderately susceptible, and 2 exhibited a susceptible reaction to sheath blight disease. Among the specific four genotypes (IC283139, IC283041, IC283038, and IC283023) of the moderately resistant group exhibited less disease reaction in comparison with check variety Tetep. Further, the correlation of percent disease index (PDI) with weather parameters revealed negative associations between PDI and maximum temperature, minimum temperature, low rainfall and the positive association with maximum relative humidity (RH) suggest that very low temperature or high precipitation might have a negative impact on pathogen establishment. In addition, the sheath blight-linked SSRs were assessed using distance and model-based approaches, results of both the models revealed that genotypes distinguished the resistant population from the susceptible one. From the output of two years of principal component analysis, two genotypes from each group of moderately resistant, moderately susceptible and susceptible were studied for their biochemical reaction against the sheath blight pathogen. The biochemical study revealed that the accumulation of defense and antioxidant enzymes, namely, polyphenol oxidase, peroxidase, total phenol, phenylalanine ammonia-lyase, catalase, and superoxide dismutase, were higher in moderately resistant genotypes, but was observed to be lower in moderately susceptible and susceptible genotypes. The statistical analysis revealed the enzyme activities (defense and antioxidant) exhibited a strong negative correlation with area under the disease progress curve (AUDPC) and influence of weather parameter RH. This demonstrates that the environment factor RH plays a major role in imparting the resistance mechanism by decreasing the enzymes activities and increasing PDI. This study found that the identified novel resistant genotype (IC283139) with purple stem base demonstrated improved resistance against sheath blight infection through a defense response and the use of antioxidant machinery.
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Affiliation(s)
- R. Naveenkumar
- Indian Council of Agricultural Research (ICAR)-National Rice Research Institute (NRRI), Cuttack, Odisha, 753006, India
- Institute of Agricultural Sciences, Banaras Hindu University (BHU), Varanasi, Uttar Pradesh, 221005, India
- Department of Agriculture, Karunya Institute of Technology and Sciences, Karunya Nagar, Coimbatore, Tamil Nadu, 641114, India
| | - A. Anandan
- Indian Council of Agricultural Research (ICAR)-National Rice Research Institute (NRRI), Cuttack, Odisha, 753006, India
- ICAR-Indian Institute of Seed Science, Regional Station, Bangalore, 560065, Karnataka, India
| | - Vineeta Singh
- Institute of Agricultural Sciences, Banaras Hindu University (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - S.R. Prabhukarthikeyan
- Indian Council of Agricultural Research (ICAR)-National Rice Research Institute (NRRI), Cuttack, Odisha, 753006, India
| | - C. Parameswaran
- Indian Council of Agricultural Research (ICAR)-National Rice Research Institute (NRRI), Cuttack, Odisha, 753006, India
| | - G. Sangeetha
- ICAR-Indian Institute of Horticultural Research (IIHR), Bangalore, 560089, Karnataka, India
| | - A. Mahender
- Rice Breeding Innovation Platform, International Rice Research Institute (IRRI), Los Banos, Laguna, 4031, Philippines
| | - U. Keerthana
- Indian Council of Agricultural Research (ICAR)-National Rice Research Institute (NRRI), Cuttack, Odisha, 753006, India
| | - P.K. Singh
- Institute of Agricultural Sciences, Banaras Hindu University (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - B.C. Patra
- Indian Council of Agricultural Research (ICAR)-National Rice Research Institute (NRRI), Cuttack, Odisha, 753006, India
| | - Jauhar Ali
- Rice Breeding Innovation Platform, International Rice Research Institute (IRRI), Los Banos, Laguna, 4031, Philippines
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Jiang C, Wang D, Zhang J, Xu Y, Zhang C, Zhang J, Wang X, Wang Y. VqMYB154 promotes polygene expression and enhances resistance to pathogens in Chinese wild grapevine. HORTICULTURE RESEARCH 2021; 8:151. [PMID: 34193849 PMCID: PMC8245564 DOI: 10.1038/s41438-021-00585-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 04/13/2021] [Accepted: 04/19/2021] [Indexed: 05/23/2023]
Abstract
Resveratrol plays a crucial phytoalexin role in the grapevine and is beneficial to human health. However, the molecular mechanism of resveratrol accumulation in the enhancement of disease resistance is unclear. Here, we report that the transcription factor VqMYB154 from Vitis quinquangularis accession Danfeng-2 is strongly expressed under artificial inoculation with Uncinula necator and regulates resveratrol accumulation. Unlike its homolog, VqMYB154 has a pathogen-induced promoter and responds to stimulation by U. necator, Pseudomonas syringae, and other treatments. Yeast one-hybrid and GUS activity assays confirmed that VqMYB154 can activate the stilbene synthase genes VqSTS9, VqSTS32, and VqSTS42 by directly binding to their promoters. Overexpression of VqMYB154 in grape leaves resulted in activation of the stilbene pathway, upregulation of STS genes, and accumulation of stilbenoids. In addition, heterologous overexpression of VqMYB154 in Arabidopsis activated resistance-related genes and resulted in greater programmed cell death and accumulation of reactive oxygen species, which led to resistance against P. syringae. These results suggest that the transcription factor VqMYB154 from V. quinquangularis accession Danfeng-2 participates in the regulatory mechanism that improves the biosynthesis and accumulation of stilbenes and enhances resistance to disease in grapevine.
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Affiliation(s)
- Changyue Jiang
- College of Horticulture, Northwest A & F University, 712100, Yangling, Shaanxi, The People's Republic of China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, 712100, Yangling, Shaanxi, The People's Republic of China
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A & F University, 712100, Yangling, Shaanxi, The People's Republic of China
| | - Dan Wang
- College of Horticulture, Northwest A & F University, 712100, Yangling, Shaanxi, The People's Republic of China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, 712100, Yangling, Shaanxi, The People's Republic of China
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A & F University, 712100, Yangling, Shaanxi, The People's Republic of China
| | - Jie Zhang
- College of Horticulture, Northwest A & F University, 712100, Yangling, Shaanxi, The People's Republic of China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, 712100, Yangling, Shaanxi, The People's Republic of China
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A & F University, 712100, Yangling, Shaanxi, The People's Republic of China
| | - Yan Xu
- College of Horticulture, Northwest A & F University, 712100, Yangling, Shaanxi, The People's Republic of China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, 712100, Yangling, Shaanxi, The People's Republic of China
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A & F University, 712100, Yangling, Shaanxi, The People's Republic of China
| | - Chaohong Zhang
- College of Horticulture, Northwest A & F University, 712100, Yangling, Shaanxi, The People's Republic of China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, 712100, Yangling, Shaanxi, The People's Republic of China
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A & F University, 712100, Yangling, Shaanxi, The People's Republic of China
| | - Jianxia Zhang
- College of Horticulture, Northwest A & F University, 712100, Yangling, Shaanxi, The People's Republic of China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, 712100, Yangling, Shaanxi, The People's Republic of China
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A & F University, 712100, Yangling, Shaanxi, The People's Republic of China
| | - Xiping Wang
- College of Horticulture, Northwest A & F University, 712100, Yangling, Shaanxi, The People's Republic of China
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, 712100, Yangling, Shaanxi, The People's Republic of China
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A & F University, 712100, Yangling, Shaanxi, The People's Republic of China
| | - Yuejin Wang
- College of Horticulture, Northwest A & F University, 712100, Yangling, Shaanxi, The People's Republic of China.
- Key Laboratory of Horticultural Plant Biology and Germplasm Innovation in Northwest China, Ministry of Agriculture, 712100, Yangling, Shaanxi, The People's Republic of China.
- State Key Laboratory of Crop Stress Biology in Arid Areas, Northwest A & F University, 712100, Yangling, Shaanxi, The People's Republic of China.
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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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Chakraborty J, Sen S, Ghosh P, Jain A, Das S. Inhibition of multiple defense responsive pathways by CaWRKY70 transcription factor promotes susceptibility in chickpea under Fusarium oxysporum stress condition. BMC PLANT BIOLOGY 2020; 20:319. [PMID: 32631232 PMCID: PMC7336453 DOI: 10.1186/s12870-020-02527-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 06/26/2020] [Indexed: 05/21/2023]
Abstract
BACKGROUND Suppression and activation of plant defense genes is comprehensively regulated by WRKY family transcription factors. Chickpea, the non-model crop legume suffers from wilt caused by Fusarium oxysporum f. sp. ciceri Race1 (Foc1), defense response mechanisms of which are poorly understood. Here, we attempted to show interaction between WRKY70 and several downstream signaling components involved in susceptibility/resistance response in chickpea upon challenge with Foc1. RESULTS In the present study, we found Cicer arietinum L. WRKY70 (CaWRKY70) negatively governs multiple defense responsive pathways, including Systemic Acquired Resistance (SAR) activation in chickpea upon Foc1 infection. CaWRKY70 is found to be significantly accumulated at shoot tissues of susceptible (JG62) chickpea under Foc1 stress and salicylic acid (SA) application. CaWRKY70 overexpression promotes susceptibility in resistant chickpea (WR315) plants to Foc1 infection. Transgenic plants upon Foc1 inoculation demonstrated suppression of not only endogenous SA concentrations but expression of genes involved in SA signaling. CaWRKY70 overexpressing chickpea roots exhibited higher ion-leakage and Foc1 biomass accumulation compared to control transgenic (VC) plants. CaWRKY70 overexpression suppresses H2O2 production and resultant reactive oxygen species (ROS) induced cell death in Foc1 infected chickpea roots, stem and leaves. Being the nuclear targeted protein, CaWRKY70 suppresses CaMPK9-CaWRKY40 signaling in chickpea through its direct and indirect negative regulatory activities. Protein-protein interaction study revealed CaWRKY70 and CaRPP2-like CC-NB-ARC-LRR protein suppresses hyper-immune signaling in chickpea. Together, our study provides novel insights into mechanisms of suppression of the multiple defense signaling components in chickpea by CaWRKY70 under Foc1 stress. CONCLUSION CaWRKY70 mediated defense suppression unveils networking between several immune signaling events negatively affecting downstream resistance mechanisms in chickpea under Foc1 stress.
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Affiliation(s)
- Joydeep Chakraborty
- Present Address: Division of Plant Biology, Bose Institute, Centenary Campus, P-1/12, CIT Scheme-VIIM, Kankurgachi, Kolkata, West Bengal 700054 India
| | - Senjuti Sen
- Present Address: Division of Plant Biology, Bose Institute, Centenary Campus, P-1/12, CIT Scheme-VIIM, Kankurgachi, Kolkata, West Bengal 700054 India
| | - Prithwi Ghosh
- Present Address: Division of Plant Biology, Bose Institute, Centenary Campus, P-1/12, CIT Scheme-VIIM, Kankurgachi, Kolkata, West Bengal 700054 India
- Present Address: Institute of Biological Chemistry, Washington State University, Pullman, Washington, USA
| | - Akansha Jain
- Present Address: Division of Plant Biology, Bose Institute, Centenary Campus, P-1/12, CIT Scheme-VIIM, Kankurgachi, Kolkata, West Bengal 700054 India
| | - Sampa Das
- Present Address: Division of Plant Biology, Bose Institute, Centenary Campus, P-1/12, CIT Scheme-VIIM, Kankurgachi, Kolkata, West Bengal 700054 India
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Bömer M, O’Brien JA, Pérez-Salamó I, Krasauskas J, Finch P, Briones A, Daudi A, Souda P, Tsui TL, Whitelegge JP, Paul Bolwell G, Devoto A. COI1-dependent jasmonate signalling affects growth, metabolite production and cell wall protein composition in arabidopsis. ANNALS OF BOTANY 2018; 122:1117-1129. [PMID: 29924303 PMCID: PMC6324744 DOI: 10.1093/aob/mcy109] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 05/31/2018] [Indexed: 05/07/2023]
Abstract
BACKGROUND AND AIMS Cultured cell suspensions have been the preferred model to study the apoplast as well as to monitor metabolic and cell cycle-related changes. Previous work showed that methyl jasmonate (MeJA) inhibits leaf growth in a CORONATINE INSENSITIVE 1 (COI1)-dependent manner, with COI1 being the jasmonate (JA) receptor. Here, the effect of COI1 overexpression on the growth of stably transformed arabidopsis cell cultures is described. METHODS Time-course experiments were carried out to analyse gene expression, and protein and metabolite levels. KEY RESULTS Both MeJA treatment and the overexpression of COI1 modify growth, by altering cell proliferation and expansion. DNA content as well as transcript patterns of cell cycle and cell wall remodelling markers were altered. COI1 overexpression also increases the protein levels of OLIGOGALACTURONIDE OXIDASE 1, BETA-GLUCOSIDASE/ENDOGLUCANASES and POLYGALACTURONASE INHIBITING PROTEIN2, reinforcing the role of COI1 in mediating defence responses and highlighting a link between cell wall loosening and growth regulation. Moreover, changes in the levels of the primary metabolites alanine, serine and succinic acid of MeJA-treated Arabidopsis cell cultures were observed. In addition, COI1 overexpression positively affects the availability of metabolites such as β-alanine, threonic acid, putrescine, glucose and myo-inositol, thereby providing a connection between JA-inhibited growth and stress responses. CONCLUSIONS This study contributes to the understanding of the regulation of growth and the production of metabolic resources by JAs and COI1. This will have important implications in dissecting the complex relationships between hormonal and cell wall signalling in plants. The work also provides tools to uncover novel mechanisms co-ordinating cell division and post-mitotic cell expansion in the absence of organ developmental control.
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Affiliation(s)
- Moritz Bömer
- Plant Molecular Science and Centre of Systems and Synthetic Biology, School of Biological Sciences, Royal Holloway University of London, Egham, Surrey, UK
- Present address: Natural Resources Institute, University of Greenwich, Central Avenue, Chatham Maritime, Kent ME4 4TB, UK
| | - José A O’Brien
- Departamento de Genética Molecular y Microbiología, Departamento de Fruticultura y Enología, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Imma Pérez-Salamó
- Plant Molecular Science and Centre of Systems and Synthetic Biology, School of Biological Sciences, Royal Holloway University of London, Egham, Surrey, UK
| | - Jovaras Krasauskas
- Plant Molecular Science and Centre of Systems and Synthetic Biology, School of Biological Sciences, Royal Holloway University of London, Egham, Surrey, UK
| | - Paul Finch
- Plant Molecular Science and Centre of Systems and Synthetic Biology, School of Biological Sciences, Royal Holloway University of London, Egham, Surrey, UK
| | - Andrea Briones
- Plant Molecular Science and Centre of Systems and Synthetic Biology, School of Biological Sciences, Royal Holloway University of London, Egham, Surrey, UK
- Present address: Biometrology, National Physical Laboratory, Hampton Road, Teddington, Middlesex, TW11 0LW, UK
| | - Arsalan Daudi
- Plant Molecular Science and Centre of Systems and Synthetic Biology, School of Biological Sciences, Royal Holloway University of London, Egham, Surrey, UK
- Present address: Bio-Protocol LLC, PO Box 2073, Sunnyvale, CA 94087-0073, USA
| | - Puneet Souda
- Departamento de Genética Molecular y Microbiología, Departamento de Fruticultura y Enología, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Tjir-Li Tsui
- Plant Molecular Science and Centre of Systems and Synthetic Biology, School of Biological Sciences, Royal Holloway University of London, Egham, Surrey, UK
| | - Julian P Whitelegge
- Pasarow Mass Spectrometry Laboratory, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California, Los Angeles, CA, USA
| | - G Paul Bolwell
- Plant Molecular Science and Centre of Systems and Synthetic Biology, School of Biological Sciences, Royal Holloway University of London, Egham, Surrey, UK
| | - Alessandra Devoto
- Plant Molecular Science and Centre of Systems and Synthetic Biology, School of Biological Sciences, Royal Holloway University of London, Egham, Surrey, UK
- For correspondence. E-mail
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Chromium(VI) Toxicity in Legume Plants: Modulation Effects of Rhizobial Symbiosis. BIOMED RESEARCH INTERNATIONAL 2018; 2018:8031213. [PMID: 29662899 PMCID: PMC5832134 DOI: 10.1155/2018/8031213] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 12/31/2017] [Indexed: 11/18/2022]
Abstract
Most legume species have the ability to establish a symbiotic relationship with soil nitrogen-fixing rhizobacteria that promote plant growth and productivity. There is an increasing evidence of reactive oxygen species (ROS) important role in formation of legume-rhizobium symbiosis and nodule functioning. Environmental pollutants such as chromium compounds can cause damage to rhizobia, legumes, and their symbiosis. In plants, toxic effects of chromium(VI) compounds are associated with the increased production of ROS and oxidative stress development as well as with inhibition of pigment synthesis and modification of virtually all cellular components. These metabolic changes result in inhibition of seed germination and seedling development as well as reduction of plant biomass and crop yield. However, if plants establish symbiosis with rhizobia, heavy metals are accumulated preferentially in nodules decreasing the toxicity of metals to the host plant. This review summarizes data on toxic effects of chromium on legume plants and legume-rhizobium symbiosis. In addition, we discussed the role of oxidative stress in both chromium toxicity and formation of rhizobial symbiosis and use of nodule bacteria for minimizing toxic effects of chromium on plants.
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Li F, Guo Y, Christensen MJ, Gao P, Li Y, Duan T. An arbuscular mycorrhizal fungus and Epichloë festucae var. lolii reduce Bipolaris sorokiniana disease incidence and improve perennial ryegrass growth. MYCORRHIZA 2018; 28:159-169. [PMID: 29274039 DOI: 10.1007/s00572-017-0813-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 12/13/2017] [Indexed: 06/07/2023]
Abstract
Leaf spot of perennial ryegrass (Lolium perenne) caused by Bipolaris sorokiniana is an important disease in temperate regions of the world. We designed this experiment to test for the combined effects of the arbuscular mycorrhizal (AM) fungus Claroideoglomus etunicatum and the grass endophyte fungus Epichloë festucae var. lolii on growth and disease occurrence in perennial ryegrass. The results show that C. etunicatum increased plant P uptake and total dry weight and that this beneficial effect was slightly enhanced when in association with the grass endophyte. The presence in plants of both the endophyte and B. sorokiniana decreased AM fungal colonization. Plants inoculated with B. sorokiniana showed the typical leaf spot symptoms 2 weeks after inoculation and the lowest disease incidence was with plants that were host to both C. etunicatum and E. festucae var. lolii. Plants with these two fungi had much higher activity of peroxidases (POD), superoxide dismutase (SOD) and catalase (CAT) and lower values of malondialdehyde (MDA) and hydrogen peroxide (H2O2). The AM fungus C. etunicatum and the grass endophyte fungus E. festucae var. lolii have the potential to promote perennial ryegrass growth and resistance to B. sorokiniana leaf spot.
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Affiliation(s)
- Fang Li
- State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Yan'e Guo
- State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Michael J Christensen
- State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Ping Gao
- State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Yanzhong Li
- State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China
| | - Tingyu Duan
- State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, 730020, China.
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10
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Terrón-Camero LC, Molina-Moya E, Sanz-Fernández M, Sandalio LM, Romero-Puertas MC. Detection of Reactive Oxygen and Nitrogen Species (ROS/RNS) During Hypersensitive Cell Death. Methods Mol Biol 2018; 1743:97-105. [PMID: 29332289 DOI: 10.1007/978-1-4939-7668-3_9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
Reactive oxygen and nitrogen species (ROS/RNS) are signaling molecules involved in a plethora of physiological processes in plants. Especially, ROS and nitric oxide (NO) are key players that are required for programmed cell death (PCD). The PCD associated with the hypersensitive response (HR) has been well characterized and the role of H2O2 and NO as key signaling molecules inducing HR has been established. Localization of ROS and NO production in plant tissues in response to pathogens can be imaged by confocal laser microscopy by using specific fluorescent probes. Deciphering the time and spatial regulation of ROS and NO is very important to establish the cellular response of plants to adverse conditions. This chapter is mainly focused on the imaging of ROS and RNS accumulation in vivo in plant tissues undergoing PCD.
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Affiliation(s)
- Laura C Terrón-Camero
- Department of Biochemistry and Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín (CSIC), Granada, Spain
| | - Eliana Molina-Moya
- Department of Biochemistry and Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín (CSIC), Granada, Spain
| | - María Sanz-Fernández
- Department of Biochemistry and Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín (CSIC), Granada, Spain
| | - Luisa M Sandalio
- Department of Biochemistry and Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín (CSIC), Granada, Spain
| | - María C Romero-Puertas
- Department of Biochemistry and Cellular and Molecular Biology of Plants, Estación Experimental del Zaidín (CSIC), Granada, Spain.
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11
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Zuluaga AP, Vega-Arreguín JC, Fei Z, Matas AJ, Patev S, Fry WE, Rose JKC. Analysis of the tomato leaf transcriptome during successive hemibiotrophic stages of a compatible interaction with the oomycete pathogen Phytophthora infestans. MOLECULAR PLANT PATHOLOGY 2016; 17:42-54. [PMID: 25808779 PMCID: PMC6638369 DOI: 10.1111/mpp.12260] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The infection of plants by hemibiotrophic pathogens involves a complex and highly regulated transition from an initial biotrophic, asymptomatic stage to a later necrotrophic state, characterized by cell death. Little is known about how this transition is regulated, and there are conflicting views regarding the significance of the plant hormones jasmonic acid (JA) and salicylic acid (SA) in the different phases of infection. To provide a broad view of the hemibiotrophic infection process from the plant perspective, we surveyed the transcriptome of tomato (Solanum lycopersicum) during a compatible interaction with the hemibiotrophic oomycete Phytophthora infestans during three infection stages: biotrophic, the transition from biotrophy to necrotrophy, and the necrotrophic phase. Nearly 10 000 genes corresponding to proteins in approximately 400 biochemical pathways showed differential transcript abundance during the three infection stages, revealing a major reorganization of plant metabolism, including major changes in source-sink relations, as well as secondary metabolites. In addition, more than 100 putative resistance genes and pattern recognition receptor genes were induced, and both JA and SA levels and associated signalling pathways showed dynamic changes during the infection time course. The biotrophic phase was characterized by the induction of many defence systems, which were either insufficient, evaded or suppressed by the pathogen.
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Affiliation(s)
- Andrea P Zuluaga
- Section of Plant Pathology and Plant Microbe Biology, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA
| | - Julio C Vega-Arreguín
- Section of Plant Pathology and Plant Microbe Biology, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA
- Laboratory of Agrigenomics, Universidad Nacional Autónoma de México (UNAM), ENES-León, 37684, Guanajuato, Mexico
| | - Zhangjun Fei
- Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, NY, 14853, USA
- USDA Robert W. Holley Center for Agriculture and Health, Ithaca, NY, 14853, USA
| | - Antonio J Matas
- Departamento de Biología Vegetal, Campus de Teatinos, Universidad de Málaga, 29071, Málaga, Spain
- Section of Plant Biology, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA
| | - Sean Patev
- Section of Plant Pathology and Plant Microbe Biology, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA
| | - William E Fry
- Section of Plant Pathology and Plant Microbe Biology, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA
| | - Jocelyn K C Rose
- Section of Plant Biology, School of Integrative Plant Science, Cornell University, Ithaca, NY, 14853, USA
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12
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Serrano I, Romero-Puertas MC, Sandalio LM, Olmedilla A. The role of reactive oxygen species and nitric oxide in programmed cell death associated with self-incompatibility. JOURNAL OF EXPERIMENTAL BOTANY 2015; 66:2827-37. [PMID: 25750430 DOI: 10.1093/jxb/erv099] [Citation(s) in RCA: 303] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Successful sexual reproduction often relies on the ability of plants to recognize self- or genetically-related pollen and prevent pollen tube growth soon after germination in order to avoid self-fertilization. Angiosperms have developed different reproductive barriers, one of the most extended being self-incompatibility (SI). With SI, pistils are able to reject self or genetically-related pollen thus promoting genetic variability. There are basically two distinct systems of SI: gametophytic (GSI) and sporophytic (SSI) based on their different molecular and genetic control mechanisms. In both types of SI, programmed cell death (PCD) has been found to play an important role in the rejection of self-incompatible pollen. Although reactive oxygen species (ROS) were initially recognized as toxic metabolic products, in recent years, a new role for ROS has become apparent: the control and regulation of biological processes such as growth, development, response to biotic and abiotic environmental stimuli, and PCD. Together with ROS, nitric oxide (NO) has become recognized as a key regulator of PCD. PCD is an important mechanism for the controlled elimination of targeted cells in both animals and plants. The major focus of this review is to discuss how ROS and NO control male-female cross-talk during fertilization in order to trigger PCD in self-incompatible pollen, providing a highly effective way to prevent self-fertilization.
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Affiliation(s)
- Irene Serrano
- Departamento de Bioquímica, Biología Celular y Molecular de Plantas, Estación Experimental del Zaidín, CSIC, Profesor Albareda 1, E-18008 Granada, Spain
| | - María C Romero-Puertas
- Departamento de Bioquímica, Biología Celular y Molecular de Plantas, Estación Experimental del Zaidín, CSIC, Profesor Albareda 1, E-18008 Granada, Spain
| | - Luisa M Sandalio
- Departamento de Bioquímica, Biología Celular y Molecular de Plantas, Estación Experimental del Zaidín, CSIC, Profesor Albareda 1, E-18008 Granada, Spain
| | - Adela Olmedilla
- Departamento de Bioquímica, Biología Celular y Molecular de Plantas, Estación Experimental del Zaidín, CSIC, Profesor Albareda 1, E-18008 Granada, Spain
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13
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Thiebaut F, Rojas CA, Grativol C, Motta MR, Vieira T, Regulski M, Martienssen RA, Farinelli L, Hemerly AS, Ferreira PCG. Genome-wide identification of microRNA and siRNA responsive to endophytic beneficial diazotrophic bacteria in maize. BMC Genomics 2014; 15:766. [PMID: 25194793 PMCID: PMC4168055 DOI: 10.1186/1471-2164-15-766] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 08/22/2014] [Indexed: 11/10/2022] Open
Abstract
Background Small RNA (sRNA) has been described as a regulator of gene expression. In order to understand the role of maize sRNA (Zea mays – hybrid UENF 506-8) during association with endophytic nitrogen-fixing bacteria, we analyzed the sRNA regulated by its association with two diazotrophic bacteria, Herbaspirillum seropedicae and Azospirillum brasilense. Results Deep sequencing analysis was done with RNA extracted from plants inoculated with H. seropedicae, allowing the identification of miRNA and siRNA. A total of 25 conserved miRNA families and 15 novel miRNAs were identified. A dynamic regulation in response to inoculation was also observed. A hypothetical model involving copper-miRNA is proposed, emphasizing the fact that the up-regulation of miR397, miR398, miR408 and miR528, which is followed by inhibition of their targets, can facilitate association with diazotrophic bacteria. Similar expression patterns were observed in samples inoculated with A. brasilense. Moreover, novel miRNA and siRNA were classified in the Transposable Elements (TE) database, and an enrichment of siRNA aligned with TE was observed in the inoculated samples. In addition, an increase in 24-nt siRNA mapping to genes was observed, which was correlated with an increase in methylation of the coding regions and a subsequent reduction in transcription. Conclusion Our results show that maize has RNA-based silencing mechanisms that can trigger specific responses when plants interact with beneficial endophytic diazotrophic bacteria. Our findings suggest important roles for sRNA regulation in maize, and probably in other plants, during association with diazotrophic bacteria, emphasizing the up-regulation of Cu-miRNA. Electronic supplementary material The online version of this article (doi:10.1186/1471-2164-15-766) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Paulo C G Ferreira
- Laboratório de Biologia Molecular de Plantas, Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Cidade Universitária, Avenida Carlos Chagas Filho, 373, CCS, Bl,L-29ss, Rio de Janeiro RJ 21941-599, Brazil.
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14
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González-Teuber M, Kaltenpoth M, Boland W. Mutualistic ants as an indirect defence against leaf pathogens. THE NEW PHYTOLOGIST 2014; 202:640-650. [PMID: 24392817 DOI: 10.1111/nph.12664] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Accepted: 11/28/2013] [Indexed: 05/08/2023]
Abstract
Mutualistic ants are commonly considered as an efficient indirect defence against herbivores. Nevertheless, their indirect protective role against plant pathogens has been scarcely investigated. We compared the protective role against pathogens of two different ant partners, a mutualistic and a parasitic ant, on the host plant Acacia hindsii (Fabaceae). The epiphytic bacterial community on leaves was evaluated in the presence and absence of both ant partners by cultivation and by 454 pyrosequencing of the 16S rRNA gene. Pathogen-inflicted leaf damage, epiphytic bacterial abundance (colony-forming units) and number of operational taxonomic units (OTUs) were significantly higher in plants inhabited by parasitic ants than in plants inhabited by mutualistic ants. Unifrac unweighted and weighted principal component analyses showed that the bacterial community composition on leaves changed significantly when mutualistic ants were removed from plants or when plants were inhabited by parasitic ants. Direct mechanisms provided by ant-associated bacteria would contribute to the protective role against pathogens. The results suggest that the indirect defence of mutualistic ants also covers the protection from bacterial plant pathogens. Our findings highlight the importance of considering bacterial partners in ant-plant defensive mutualisms, which can contribute significantly to ant-mediated protection from plant pathogens.
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Affiliation(s)
- Marcia González-Teuber
- Department of Bioorganic Chemistry, Max Planck Institute for Chemical Ecology, Beutenberg Campus, Hans-Knoell-Strasse 8, D-07745, Jena, Germany
- Departamento de Biología, Universidad de La Serena, Casilla 554, La Serena, Chile
| | - Martin Kaltenpoth
- Department of Insect Symbiosis, Max Planck Institute for Chemical Ecology, Beutenberg Campus, Hans-Knoell-Strasse 8, D-07745, Jena, Germany
| | - Wilhelm Boland
- Department of Bioorganic Chemistry, Max Planck Institute for Chemical Ecology, Beutenberg Campus, Hans-Knoell-Strasse 8, D-07745, Jena, Germany
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15
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Sornchuer P, Namchaiw P, Kerdwong J, Charoenlap N, Mongkolsuk S, Vattanaviboon P. Copper chloride induces antioxidant gene expression but reduces ability to mediate H2O2 toxicity in Xanthomonas campestris. Microbiology (Reading) 2014; 160:458-466. [DOI: 10.1099/mic.0.072470-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Copper (Cu)-based biocides are currently used as control measures for both fungal and bacterial diseases in agricultural fields. In this communication, we show that exposure of the bacterial plant pathogen Xanthomonas campestris to nonlethal concentrations of Cu2+ ions (75 µM) enhanced expression of genes in OxyR, OhrR and IscR regulons. High levels of catalase, Ohr peroxidase and superoxide dismutase diminished Cu2+-induced gene expression, suggesting that the production of hydrogen peroxide (H2O2) and organic hydroperoxides is responsible for Cu2+-induced gene expression. Despite high expression of antioxidant genes, the CuCl2-treated cells were more susceptible to H2O2 killing treatment than the uninduced cells. This phenotype arose from lowered catalase activity in the CuCl2-pretreated cells. Thus, exposure to a nonlethal dose of Cu2+ renders X. campestris vulnerable to H2O2, even when various genes for peroxide-metabolizing enzymes are highly expressed. Moreover, CuCl2-pretreated cells are sensitive to treatment with the redox cycling drug, menadione. No physiological cross-protection response was observed in CuCl2-treated cells in a subsequent challenge with killing concentrations of an organic hydroperoxide. As H2O2 production is an important initial plant immune response, defects in H2O2 protection are likely to reduce bacterial survival in plant hosts and enhance the usefulness of copper biocides in controlling bacterial pathogens.
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Affiliation(s)
- Phornphan Sornchuer
- Program in Applied Biological Sciences: Environmental Health, Chulabhorn Graduate Institute, Bangkok 10210, Thailand
| | - Poommaree Namchaiw
- Laboratory of Biotechnology, Chulabhorn Research Institute, Bangkok 10210, Thailand
| | - Jarunee Kerdwong
- Department of Biotechnology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Nisanart Charoenlap
- Laboratory of Biotechnology, Chulabhorn Research Institute, Bangkok 10210, Thailand
| | - Skorn Mongkolsuk
- Center of Excellence on Environmental Health and Toxicology, Bangkok, Thailand
- Department of Biotechnology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
- Laboratory of Biotechnology, Chulabhorn Research Institute, Bangkok 10210, Thailand
| | - Paiboon Vattanaviboon
- Center of Excellence on Environmental Health and Toxicology, Bangkok, Thailand
- Laboratory of Biotechnology, Chulabhorn Research Institute, Bangkok 10210, Thailand
- Program in Applied Biological Sciences: Environmental Health, Chulabhorn Graduate Institute, Bangkok 10210, Thailand
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16
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Maksimov IV, Yarullina LG, Burkhanova GF, Zaikina EA. Relationship between the aggressiveness and catalase activity of Septoria nodorum Berk. in wheat. BIOL BULL+ 2013. [DOI: 10.1134/s1062359013050099] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Cho K, Kim Y, Wi SJ, Seo JB, Kwon J, Chung JH, Park KY, Nam MH. Metabolic survey of defense responses to a compatible hemibiotroph, Phytophthora parasitica var. nicotianae, in ethylene signaling-impaired tobacco. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2013; 61:8477-89. [PMID: 23866065 DOI: 10.1021/jf401785w] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Reactive oxygen species (ROS) and ethylene play an important role in determining the resistance or susceptibility of plants to pathogen attack. A previous study of the response of tobacco cultivar ( Nicotiana tabacum L. cv. Wisconsin 38) to a compatible hemibiotroph, Phytophthora parasitica var. nicotianae (Ppn) showed that biphasic bursts of ROS and ethylene are positively associated with disease severity. The levels of ethylene and ROS might influence the susceptibility of plants to pathogens, with changing levels of metabolite related to disease resistance or susceptibility. In this study, to obtain more detailed information on the interaction of ROS and ethylene signaling related to resistance and/or susceptibility of plants to pathogen, Ppn-induced metabolic profiles from wild type (WT) and ethylene signaling-impaired transgenic plants that expressed Ein3 antisense (Ein3-AS) were compared using ultraperformance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS). Nonredundant mass ions (576 in ESI+ mode and 336 in ESI- mode) were selected, and 56 mass ions were identified on the basis of their accurate mass ions and MS/MS spectra. Two-way hierarchical clustering analysis of the selected mass ions revealed that nicotine and phenylpropanoid-polyamine conjugates, such as caffeoyl-dihydrocaffeoyl-spermidine, dicaffeoyl-spermidine, caffeoyl-feruloyl-spermidine, and two bis(dihydrocaffeoyl)-spermine isomers, and their intermediates, such as arginine and putrecine, were present at lower levels in Ein3-AS transgenic plants during Ppn interaction than in WT, whereas galactolipid and oxidized free fatty acid levels were higher in Ein3-AS transgenic plants. Taken together, these results reveal a function for ethylene signaling in tobacco defense responses during Ppn interaction.
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Affiliation(s)
- Kyoungwon Cho
- Seoul Center, Korea Basic Science Institute (KBSI) , Seoul 136-713, Republic of Korea
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18
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Kim SM, Bae C, Oh SK, Choi D. A pepper (Capsicum annuum L.) metacaspase 9 (Camc9) plays a role in pathogen-induced cell death in plants. MOLECULAR PLANT PATHOLOGY 2013; 14:557-66. [PMID: 23522353 PMCID: PMC6638822 DOI: 10.1111/mpp.12027] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Metacaspases, which belong to the cysteine-type C14 protease family, are most structurally similar to mammalian caspases than any other caspase-like protease in plants. Atmc9 (Arabidopsis thaliana metacaspase 9) has a unique domain structure, and distinct biochemical characteristics, such as Ca²⁺ binding, pH, redox status, S-nitrosylation and specific protease inhibitors. However, the biological roles of Atmc9 in plant-pathogen interactions remain largely unknown. In this study, a metacaspase gene present as a single copy in the pepper genome, and sharing 54% amino acid sequence identity with Atmc9, was isolated and named Capsicum annuum metacaspase 9 (Camc9). Camc9 encodes a 318-amino-acid polypeptide with an estimated molecular weight of 34.6 kDa, and shares approximately 40% amino acid sequence identity with known type II metacaspases in plants. Quantitative reverse transcription-polymerase chain reaction analyses revealed that the expression of Camc9 was induced by infections of Xanthomonas campestris pv. vesicatoria race 1 and race 3 and treatment with methyl jasmonate. Suppression of Camc9 expression using virus-induced gene silencing enhanced disease resistance and suppressed cell death symptom development following infection with virulent bacterial pathogens. By contrast, overexpression of Camc9 by transient or stable transformation enhanced disease susceptibility and pathogen-induced cell death by regulation of reactive oxygen species production and defence-related gene expression. These results suggest that Camc9 is a possible member of the metacaspase gene family and plays a role as a positive regulator of pathogen-induced cell death in the plant kingdom.
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Affiliation(s)
- Su-Min Kim
- Department of Plant Science, Plant Genomics and Breeding Institute, Seoul National University, Seoul 151-921, South Korea
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19
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Franza T, Expert D. Role of iron homeostasis in the virulence of phytopathogenic bacteria: an 'à la carte' menu. MOLECULAR PLANT PATHOLOGY 2013; 14:429-38. [PMID: 23171271 PMCID: PMC6638640 DOI: 10.1111/mpp.12007] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The interaction between pathogenic microbes and their hosts is determined by survival strategies on both sides. As a result of its redox properties, iron is vital for the growth and proliferation of nearly all organisms, including pathogenic bacteria. In bacteria-vertebrate interactions, competition for this essential metal is critical for the outcome of the infection. The role of iron in the virulence of plant pathogenic bacteria has only been explored in a few pathosystems in the past. However, in the last 5 years, intensive research has provided new insights into the mechanisms of iron homeostasis in phytopathogenic bacteria that are involved in virulence. This review, which includes important plant pathosystems, discusses the recent advances in the understanding of iron transport and homeostasis during plant pathogenesis. By summarizing the recent progress, we wish to provide an updated view clarifying the various roles played by this metal in the virulence of bacterial phytopathogens as a nutritional and regulatory element. The complex intertwining of iron metabolism and oxidative stress during infection is emphasized.
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Affiliation(s)
- Thierry Franza
- Laboratoire des Interactions Plantes Pathogènes UMR 217, AgroParisTech/INRA/UMPC, 16 rue Claude Bernard 75005, Paris, France.
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20
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Altinok HH, Dikilitas M, Yildiz HN. Potential of Pseudomonasand BacillusIsolates as Biocontrol Agents Against Fusarium Wilt of Eggplant. BIOTECHNOL BIOTEC EQ 2013. [DOI: 10.5504/bbeq.2013.0047] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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21
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O'Brien JA, Daudi A, Butt VS, Bolwell GP. Reactive oxygen species and their role in plant defence and cell wall metabolism. PLANTA 2012; 236:765-79. [PMID: 22767200 DOI: 10.1007/s00425-012-1696-9] [Citation(s) in RCA: 282] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Accepted: 06/18/2012] [Indexed: 05/18/2023]
Abstract
Harnessing the toxic properties of reactive oxygen species (ROS) to fight off invading pathogens can be considered a major evolutionary success story. All aerobic organisms have evolved the ability to regulate the levels of these toxic intermediates, whereas some have evolved elaborate signalling pathways to dramatically increase the levels of ROS and use them as weapons in mounting a defence response, a process commonly referred to as the oxidative burst. The balance between steady state levels of ROS and the exponential increase in these levels during the oxidative burst has begun to shed light on complex signalling networks mediated by these molecules. Here, we discuss the different sources of ROS that are present in plant cells and review their role in the oxidative burst. We further describe two well-studied ROS generating systems, the NADPH oxidase and apoplastic peroxidase proteins, and their role as the primary producers of ROS during pathogen invasion. We then discuss what is known about the metabolic and proteomic fluxes that occur in plant cells during the oxidative burst and after pathogen recognition, and try to highlight underlying biochemical processes that may provide more insight on the complex regulation of ROS in plants.
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Affiliation(s)
- Jose A O'Brien
- School of Biological Sciences, Royal Holloway, University of London, Egham, Surrey, TW20 0EX, UK.
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22
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Jin J, Hewezi T, Baum TJ. Arabidopsis peroxidase AtPRX53 influences cell elongation and susceptibility to Heterodera schachtii. PLANT SIGNALING & BEHAVIOR 2011; 6:1778-86. [PMID: 22212122 PMCID: PMC3329352 DOI: 10.4161/psb.6.11.17684] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Cyst nematodes establish and maintain feeding sites (syncytia) in the roots of host plants by altering expression of host genes. Among these genes are members of the large gene family of class III peroxidases, which have reported functions in a variety of biological processes. In this study, we used Arabidopsis-Heterodera schachtii as a model system to functionally characterize peroxidase 53 (AtPRX53). Promoter assays showed that under non-infected conditions AtPRX53 is expressed mainly in the root, the hypocotyl and the base of the pistil. Under infected conditions, the AtPRX53 promoter showed upregulation at the nematode penetration sites and in their migration paths. Interestingly, strong GUS activity was observed in H. schachtii-induced syncytia during the early stage of infection and remained strong in the syncytia of third-stage juveniles. Also, AtPRX53 showed upregulation in response to wounding and jasmonic acid treatments. Manipulation of AtPRX53 expression through overexpression and knockout mutation affected both plant morphology and nematode susceptibility. While AtPRX53 overexpression lines exhibited short hypocotyls, aberrant flower development and reduced nematode susceptibility to H. schachtii, the atprx53 mutant showed long hypocotyls and a 3-carpel silique phenotype as well as a non significant increase of nematode susceptibility. Taken together these data, therefore, indicate diverse roles of AtPRX53 in the wound response, flower development and syncytium formation.
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Affiliation(s)
- Jing Jin
- Department of Plant Pathology and Microbiology, Iowa State University; Ames, IA USA
- Molecular, Cellular and Developmental Biology Graduate Program; Iowa State University; Ames, IA USA
| | - Tarek Hewezi
- Department of Plant Pathology and Microbiology, Iowa State University; Ames, IA USA
| | - Thomas J. Baum
- Department of Plant Pathology and Microbiology, Iowa State University; Ames, IA USA
- Molecular, Cellular and Developmental Biology Graduate Program; Iowa State University; Ames, IA USA
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Ghanta S, Chattopadhyay S. Glutathione as a signaling molecule: another challenge to pathogens. PLANT SIGNALING & BEHAVIOR 2011; 6:783-8. [PMID: 21969955 PMCID: PMC3218473 DOI: 10.4161/psb.6.6.15147] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2011] [Accepted: 02/14/2011] [Indexed: 05/03/2023]
Abstract
Plants harbor a variety of signaling molecules which are members of a vast array of signaling networks in maintaining their physiological balance. The well known members up till now are salicylic acid (SA), jasmonic acid (JA), ethylene (ET), abscissic acid (ABA) and reactive oxygen species (ROS) which are employed by plants for their adaptation to various environmental stresses in order to survive. GSH is gradually gaining importance and becoming a molecule of interest to a number of researchers especially in relation to plant defense to pathogens. Although the role of GSH in plant defense has long been known, a dearth of information still exists regarding the mechanism underlying this defense response. This review highlights on the progress made in the cross-communication of GSH with other established signaling molecules through which GSH acts in abating biotic stress
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Affiliation(s)
- Srijani Ghanta
- Plant Biology Laboratory, Drug Development/Diagnostics & Biotechnology Division, Indian Institute of Chemical Biology (A unit of Council of Scientific & Industrial Research), Kolkata, West Bengal, India
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Ghanta S, Bhattacharyya D, Chattopadhyay S. Glutathione signaling acts through NPR1-dependent SA-mediated pathway to mitigate biotic stress. PLANT SIGNALING & BEHAVIOR 2011; 6:607-9. [PMID: 21499030 PMCID: PMC3142405 DOI: 10.4161/psb.6.4.15402] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2011] [Accepted: 03/07/2011] [Indexed: 05/09/2023]
Abstract
Glutathione (GSH) has widely been known to be a multifunctional molecule especially as an antioxidant uptill now, but has found a new role in plant defense signaling. Research from the past three decades indicate that GSH is a player in pathogen defense in plants, but the mechanism underlying this has not been elucidated fully. We have recently shown that GSH acts as a signaling molecule and mitigates biotic stress through non-expressor of PR genes 1 (NPR1)-dependent salicylic acid (SA)-mediated pathway. Transgenic tobacco with enhanced level of GSH (NtGB lines) was found to synthesize more SA, was capable of enhanced expression of genes belonging to NPR1-dependent SA-mediated pathway, were resistant to Pseudomonas syringae, the biotrophic pathogen and many SA-related proteins were upregulated. These results gathered experimental evidence on the mechanism through which GSH combats biotic stress. In continuation with our previous investigation we show here that the expression of glutathione S-transferase (GST), the NPR1-independent SA-mediated gene was unchanged in transgenic tobacco with enhanced level of GSH as compared to wild-type plants. Additionally, the transgenic plants were barely resistant to Botrytis cinerea, the necrotrophic pathogen. SA-treatment led to enhanced level of expression of pathogenesis-related protein gene (PR1) and PR4 as against short-chain dehydrogenase/reductase family protein (SDRLP) and allene oxide synthase (AOS). These data provided significant insight into the involvement of GSH in NPR1-dependent SA-mediated pathway in mitigating biotic stress.
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