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Nutricati E, De Pascali M, Negro C, Bianco PA, Quaglino F, Passera A, Pierro R, Marcone C, Panattoni A, Sabella E, De Bellis L, Luvisi A. Signaling Cross-Talk between Salicylic and Gentisic Acid in the ' Candidatus Phytoplasma Solani' Interaction with Sangiovese Vines. PLANTS (BASEL, SWITZERLAND) 2023; 12:2695. [PMID: 37514309 PMCID: PMC10383235 DOI: 10.3390/plants12142695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/13/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023]
Abstract
"Bois noir" disease associated with 'Candidatus Phytoplasma solani' seriously compromises the production and survival of grapevines (Vitis vinifera L.) in Europe. Understanding the plant response to phytoplasmas should help to improve disease control strategies. Using a combined metabolomic and transcriptomic analysis, this work, therefore, investigated the phytoplasma-grapevine interaction in red cultivar Sangiovese in a vineyard over four seasonal growth stages (from late spring to late summer), comparing leaves from healthy and infected grapevines (symptomatic and symptomless). We found an accumulation of both conjugate and free salicylic acids (SAs) in the leaves of 'Ca. P. solani'-positive plants from early stages of infection, when plants are still asymptomatic. A strong accumulation of gentisic acid (GA) associated with symptoms progression was found for the first time. A detailed analysis of phenylpropanoids revealed a significant accumulation of hydroxycinnamic acids, flavonols, flavan 3-ols, and anthocyanin cyanidin 3-O-glucoside, which are extensively studied due to their involvement in the plant response to various pathogens. Metabolomic data corroborated by gene expression analysis indicated that phenylpropanoid biosynthetic and salicylic acid-responsive genes were upregulated in 'Ca. P. solani-positive plants compared to -negative ones during the observed period.
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Affiliation(s)
- Eliana Nutricati
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Provinciale Lecce-Monteroni, 73100 Lecce, Italy
| | - Mariarosaria De Pascali
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Provinciale Lecce-Monteroni, 73100 Lecce, Italy
| | - Carmine Negro
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Provinciale Lecce-Monteroni, 73100 Lecce, Italy
| | - Piero Attilio Bianco
- Department of Agricultural and Environmental Sciences, Production, Landscape, Agroenergy (DiSAA), University of Milan, Via Celoria 2, 20133 Milano, Italy
| | - Fabio Quaglino
- Department of Agricultural and Environmental Sciences, Production, Landscape, Agroenergy (DiSAA), University of Milan, Via Celoria 2, 20133 Milano, Italy
| | - Alessandro Passera
- Department of Agricultural and Environmental Sciences, Production, Landscape, Agroenergy (DiSAA), University of Milan, Via Celoria 2, 20133 Milano, Italy
| | - Roberto Pierro
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy
| | - Carmine Marcone
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Italy
| | - Alessandra Panattoni
- Department of Agriculture, Food and Environment (DAFE), University of Pisa, Via del Borghetto 80, 56124 Pisa, Italy
| | - Erika Sabella
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Provinciale Lecce-Monteroni, 73100 Lecce, Italy
| | - Luigi De Bellis
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Provinciale Lecce-Monteroni, 73100 Lecce, Italy
| | - Andrea Luvisi
- Department of Biological and Environmental Sciences and Technologies, University of Salento, Via Provinciale Lecce-Monteroni, 73100 Lecce, Italy
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Alfaro-Quezada JF, Martínez JP, Molinett S, Valenzuela M, Montenegro I, Ramírez I, Dorta F, Ávila-Valdés A, Gharbi E, Zhou M, Dailly H, Quinet M, Lutts S, Seeger M. Rootstock increases the physiological defence of tomato plants against Pseudomonas syringae pv. tomato infection. JOURNAL OF EXPERIMENTAL BOTANY 2023; 74:2891-2911. [PMID: 36723875 DOI: 10.1093/jxb/erad040] [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: 07/13/2022] [Accepted: 01/30/2023] [Indexed: 06/06/2023]
Abstract
Climate change has intensified the infection of tomato plants by pathogens such as Pseudomonas syringae pv. tomato (Pst). Rootstocks may increase plant tolerance to leaf phytopathogens. The aim of this study was to evaluate the effects of the tolerant Poncho Negro (R) tomato rootstock on physiological defence and the role of hydrogen sulfide (H2S) in susceptible Limachino (L) tomato plant responses to Pst attack. Ungrafted (L), self-grafted (L/L), and grafted (L/R) plants were infected with Pst. Rootstock increased the concentration of antioxidant compounds including ascorbate in the scion. Tolerant rootstock induced an increase of H2S in the scion, which correlated with enhanced expression of the SlAPX2 gene. A high accumulation of salicylic acid was observed in Pst-inoculated grafted L/L and L/R plants, but this was higher in L/R plants. The increase of H2S during Pst infection was associated with a reduction of ethylene in L/R plants. Our study indicates that the Poncho Negro rootstock reduced the symptoms of bacterial speck disease in the Limachino tomato plants, conferring tolerance to Pst infection. This study provides new knowledge about the impact of rootstock in the defence of tomato plants against leaf pathogens that could be used in sustainable management of tomato cultivation.
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Affiliation(s)
- Juan Felipe Alfaro-Quezada
- Laboratorio de Fisiología y Biología Molecular Vegetal, Instituto de Investigaciones Agropecuarias (INIA), Centro Regional La Cruz, Chorrillos 86, La Cruz, Chile
- Laboratorio de Microbiología Molecular y Biotecnología Ambiental, Departamento de Química, Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso, Chile
- Centro de Biotecnología Dr. Daniel Alkalay Lowitt, Universidad Técnica Federico Santa María, General Bari 699, Valparaíso, Chile
- Laboratorio de Fitopatología de Frutales, Instituto de Investigaciones Agropecuarias (INIA), Centro Regional Quilamapu, Avenida Vicente Méndez 515, Chillán, Chile
| | - Juan Pablo Martínez
- Laboratorio de Fisiología y Biología Molecular Vegetal, Instituto de Investigaciones Agropecuarias (INIA), Centro Regional La Cruz, Chorrillos 86, La Cruz, Chile
| | - Sebastian Molinett
- Laboratorio de Fisiología y Biología Molecular Vegetal, Instituto de Investigaciones Agropecuarias (INIA), Centro Regional La Cruz, Chorrillos 86, La Cruz, Chile
| | - Miryam Valenzuela
- Laboratorio de Microbiología Molecular y Biotecnología Ambiental, Departamento de Química, Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso, Chile
- Centro de Biotecnología Dr. Daniel Alkalay Lowitt, Universidad Técnica Federico Santa María, General Bari 699, Valparaíso, Chile
| | - Ivan Montenegro
- Escuela de Obstetricia y Puericultura, Facultad de Medicina, Universidad de Valparaíso, Angamos 655, Reñaca, Viña del Mar, Chile
| | - Ingrid Ramírez
- Centro de Biotecnología Dr. Daniel Alkalay Lowitt, Universidad Técnica Federico Santa María, General Bari 699, Valparaíso, Chile
| | - Fernando Dorta
- Centro de Biotecnología Dr. Daniel Alkalay Lowitt, Universidad Técnica Federico Santa María, General Bari 699, Valparaíso, Chile
| | - Andrea Ávila-Valdés
- Graduate School, Faculty of Agricultural Sciences & Centro de Investigación en Suelos Volcánicos, Universidad Austral de Chile, Campus Isla Teja, Valdivia, Chile
- Departamento de Producción Agrícola, Facultad de Ciencias Agronómicas, Universidad de Chile, Santa Rosa 11315, La Pintana, Santiago, Chile
| | - Emna Gharbi
- Groupe de Recherche en Physiologie Végétale (GRPV), Earth and Life Institute - Agronomy (ELI-A), Université Catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Mingxi Zhou
- Groupe de Recherche en Physiologie Végétale (GRPV), Earth and Life Institute - Agronomy (ELI-A), Université Catholique de Louvain, Louvain-la-Neuve, Belgium
- Biology Centre, Czech Academy of Sciences, Institute of Plant Molecular Biology, Ceske Budejovice, 37005, Czech Republic
| | - Hélène Dailly
- Groupe de Recherche en Physiologie Végétale (GRPV), Earth and Life Institute - Agronomy (ELI-A), Université Catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Muriel Quinet
- Groupe de Recherche en Physiologie Végétale (GRPV), Earth and Life Institute - Agronomy (ELI-A), Université Catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Stanley Lutts
- Groupe de Recherche en Physiologie Végétale (GRPV), Earth and Life Institute - Agronomy (ELI-A), Université Catholique de Louvain, Louvain-la-Neuve, Belgium
| | - Michael Seeger
- Laboratorio de Microbiología Molecular y Biotecnología Ambiental, Departamento de Química, Universidad Técnica Federico Santa María, Avenida España 1680, Valparaíso, Chile
- Centro de Biotecnología Dr. Daniel Alkalay Lowitt, Universidad Técnica Federico Santa María, General Bari 699, Valparaíso, Chile
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D’Errico C, Forgia M, Pisani M, Pavan S, Noris E, Matić S. Overexpression of the C4 protein of tomato yellow leaf curl Sardinia virus increases tomato resistance to powdery mildew. FRONTIERS IN PLANT SCIENCE 2023; 14:1163315. [PMID: 37063219 PMCID: PMC10102596 DOI: 10.3389/fpls.2023.1163315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 03/20/2023] [Indexed: 06/19/2023]
Abstract
Powdery mildew (PM) is one of the most important diseases of greenhouse and field-grown tomatoes. Viruses can intervene beneficially on plant performance in coping with biotic and abiotic stresses. Tomato yellow leaf curl Sardinia virus (TYLCSV) has been reported recently to induce tolerance against drought stress in tomato, and its C4 protein acts as the main causal factor of tolerance. However, its role in response to biotic stresses is still unknown. In this study, transgenic tomato plants carrying the TYLCSV C4 protein were exposed to biotic stress following the inoculation with Oidium neolycopersici, the causal agent of tomato PM. Phytopathological, anatomic, molecular, and physiological parameters were evaluated in this plant pathosystem. Heterologous TYLCSV C4 expression increased the tolerance of transgenic tomato plants to PM, not only reducing symptom occurrence, but also counteracting conidia adhesion and secondary hyphae elongation. Pathogenesis-related gene expression and salicylic acid production were found to be higher in tomato transgenic plants able to cope with PM compared to infected wild-type tomato plants. Our study contributes to unraveling the mechanism leading to PM tolerance in TYLCSV C4-expressing tomato plants. In a larger context, the findings of TYLCSV C4 as a novel PM defense inducer could have important implications in deepening the mechanisms regulating the management of this kind of protein to both biotic and abiotic stresses.
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Affiliation(s)
- Chiara D’Errico
- Institute for Sustainable Plant Protection, National Research Council, Turin, Italy
- European Laboratory for Non-Linear Spectroscopy, Sesto Fiorentino, Italy
| | - Marco Forgia
- Institute for Sustainable Plant Protection, National Research Council, Turin, Italy
| | - Marco Pisani
- Istituto Nazionale di Ricerca Metrologica, Applied Metrology and Engineering Division, Torino, Italy
| | - Stefano Pavan
- Department of Soil, Plant and Food Sciences, University of Bari “Aldo Moro, Bari, Italy
| | - Emanuela Noris
- Institute for Sustainable Plant Protection, National Research Council, Turin, Italy
| | - Slavica Matić
- Institute for Sustainable Plant Protection, National Research Council, Turin, Italy
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Afolabi IB, Aremu AB, Maidoki LA, Atulomah NO. Dynamics of Hepatitis B infection prevention practices among pregnant women attending antenatal care at Lubaga Hospital Kampala, Uganda using the constructs of information-motivation-behavioural skills model. BMC Public Health 2022; 22:2243. [PMID: 36457005 PMCID: PMC9714095 DOI: 10.1186/s12889-022-14723-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 11/24/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Hepatitis B virus (HBV) infection is considered a significant global public health challenge with infectivity as well as estimated potential for transmission more than 50 to 100 times that of HIV. Over time, numerous empirical studies have shown that majority of HBV-related yearly global deaths are secondary to carcinoma of the liver. It is also known that HBV infected Women have the potential to transmit the infection vertically to their infants during pregnancy. This accounts for the WHO reported 3.16% prevalence among children less than 5 years of age in Uganda. This study assessed the predictors of HBV infection prevention practices among eligible consenting pregnant women using Lubaga health facility for antenatal care (ANC). METHODS A cross-sectional descriptive study employing quantitative data collection based on the constructs of IMB model was used to capture data on the study variables among 385 randomly selected eligible pregnant women attending antenatal care at Lubaga hospital between September 2020 and October 2020. Data derived from the quantitative instrument was analysed by data reduction and transformation to summaries of descriptive statistics using (SPSS version 26) and regression analysis was performed to establish characteristics of the association between the variables with significance level set as (p < 0.05). Chi-square goodness-of-fit test was employed for significant differences in the proportion of dichotomous responses. RESULTS The findings showed that more than half of the respondents (59%) were between the ages of 18 and 28 and majority of them (42.3%) had secondary education. Furthermore, an average but inadequate knowledge ([Formula: see text] 5.97 ± 6.61; B = 0.57; p < .001), positive perception ([Formula: see text] 17.10 ± 18.31; B = 0.97; p = .014) and good behavioural skills ([Formula: see text] 12.39 ± 13.37; B = 0.56; p < .001) for adopting prevention practices all statistically predicted the averagely acceptable level of prevention practices ([Formula: see text] 15.03 ± 16.20) among the study respondents as measured on rating scales of 12, 33, 21 and 30 respectively. CONCLUSION AND RECOMMENDATION There were observed gaps in their knowledge about some basic features of the infection like transmission and risk factors as well as some misperceptions about vaccination despite the relatively average score level for both, which is likely to influence their prevention behaviours and predispose them to the risk of the infection if actions are not taken. Therefore, personalized health education is needed during antenatal visits and subsequent health campaign in order to inform better prevention practices among this vulnerable population group.
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Affiliation(s)
- Ismail Bamidele Afolabi
- grid.448732.e0000 0004 0462 7038Faculty of Science and Technology, Department of Public Health, Cavendish University, Kampala, Uganda
| | - Abdulmujeeb Babatunde Aremu
- grid.442655.40000 0001 0042 4901Faculty of Health Sciences, Department of Human Anatomy, Islamic University in Uganda, Kampala Campus, Kampala, Uganda
| | - Lawal Abdurraheem Maidoki
- grid.448732.e0000 0004 0462 7038Faculty of Science and Technology, Department of Public Health, Cavendish University, Kampala, Uganda
| | - Nnodimele Onuigbo Atulomah
- grid.448732.e0000 0004 0462 7038Faculty of Science and Technology, Department of Public Health, Cavendish University, Kampala, Uganda
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5
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Payá C, Minguillón S, Hernández M, Miguel SM, Campos L, Rodrigo I, Bellés JM, López-Gresa MP, Lisón P. SlS5H silencing reveals specific pathogen-triggered salicylic acid metabolism in tomato. BMC PLANT BIOLOGY 2022; 22:549. [PMID: 36443652 PMCID: PMC9706870 DOI: 10.1186/s12870-022-03939-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 11/11/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Salicylic acid (SA) is a major plant hormone that mediates the defence pathway against pathogens. SA accumulates in highly variable amounts depending on the plant-pathogen system, and several enzyme activities participate in the restoration of its levels. Gentisic acid (GA) is the product of the 5-hydroxylation of SA, which is catalysed by S5H, an enzyme activity regarded as a major player in SA homeostasis. GA accumulates at high levels in tomato plants infected by Citrus Exocortis Viroid (CEVd), and to a lesser extend upon Pseudomonas syringae DC3000 pv. tomato (Pst) infection. RESULTS We have studied the induction of tomato SlS5H gene by different pathogens, and its expression correlates with the accumulation of GA. Transient over-expression of SlS5H in Nicotiana benthamiana confirmed that SA is processed by SlS5H in vivo. SlS5H-silenced tomato plants were generated, displaying a smaller size and early senescence, together with hypersusceptibility to the necrotrophic fungus Botrytis cinerea. In contrast, these transgenic lines exhibited an increased defence response and resistance to both CEVd and Pst infections. Alternative SA processing appears to occur for each specific pathogenic interaction to cope with SA levels. In SlS5H-silenced plants infected with CEVd, glycosylated SA was the most discriminant metabolite found. Instead, in Pst-infected transgenic plants, SA appeared to be rerouted to other phenolics such as feruloyldopamine, feruloylquinic acid, feruloylgalactarate and 2-hydroxyglutarate. CONCLUSION Using SlS5H-silenced plants as a tool to unbalance SA levels, we have studied the re-routing of SA upon CEVd and Pst infections and found that, despite the common origin and role for SA in plant pathogenesis, there appear to be different pathogen-specific, alternate homeostasis pathways.
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Affiliation(s)
- C. Payá
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València (UPV), Ciudad Politécnica de la Innovación (CPI) 8 E, Ingeniero Fausto Elio s/n, 46011 Valencia, Spain
| | - S. Minguillón
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València (UPV), Ciudad Politécnica de la Innovación (CPI) 8 E, Ingeniero Fausto Elio s/n, 46011 Valencia, Spain
| | - M. Hernández
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València (UPV), Ciudad Politécnica de la Innovación (CPI) 8 E, Ingeniero Fausto Elio s/n, 46011 Valencia, Spain
| | - S. M. Miguel
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València (UPV), Ciudad Politécnica de la Innovación (CPI) 8 E, Ingeniero Fausto Elio s/n, 46011 Valencia, Spain
| | - L. Campos
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València (UPV), Ciudad Politécnica de la Innovación (CPI) 8 E, Ingeniero Fausto Elio s/n, 46011 Valencia, Spain
| | - I. Rodrigo
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València (UPV), Ciudad Politécnica de la Innovación (CPI) 8 E, Ingeniero Fausto Elio s/n, 46011 Valencia, Spain
| | - J. M. Bellés
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València (UPV), Ciudad Politécnica de la Innovación (CPI) 8 E, Ingeniero Fausto Elio s/n, 46011 Valencia, Spain
| | - M. P. López-Gresa
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València (UPV), Ciudad Politécnica de la Innovación (CPI) 8 E, Ingeniero Fausto Elio s/n, 46011 Valencia, Spain
| | - P. Lisón
- Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas (CSIC), Universitat Politècnica de València (UPV), Ciudad Politécnica de la Innovación (CPI) 8 E, Ingeniero Fausto Elio s/n, 46011 Valencia, Spain
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Swinnen G, De Meyer M, Pollier J, Molina-Hidalgo FJ, Ceulemans E, Venegas-Molina J, De Milde L, Fernández-Calvo P, Ron M, Pauwels L, Goossens A. The basic helix-loop-helix transcription factors MYC1 and MYC2 have a dual role in the regulation of constitutive and stress-inducible specialized metabolism in tomato. THE NEW PHYTOLOGIST 2022; 236:911-928. [PMID: 35838067 DOI: 10.1111/nph.18379] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/08/2022] [Indexed: 06/15/2023]
Abstract
Plants produce specialized metabolites to protect themselves from biotic enemies. Members of the Solanaceae family accumulate phenylpropanoid-polyamine conjugates (PPCs) in response to attackers while also maintaining a chemical barrier of steroidal glycoalkaloids (SGAs). Across the plant kingdom, biosynthesis of such defense compounds is promoted by jasmonate signaling in which clade IIIe basic helix-loop-helix (bHLH) transcription factors play a central role. By characterizing hairy root mutants obtained through Clustered Regularly Interspaced Short Palindromic Repeats (CRISPR)-CRISPR associated protein 9 (CRISPR-Cas9) genome editing, we show that the tomato clade IIIe bHLH transcription factors, MYC1 and MYC2, redundantly control jasmonate-inducible PPC and SGA production, and are also essential for constitutive SGA biosynthesis. Double myc1 myc2 loss-of-function tomato hairy roots displayed suppressed constitutive expression of SGA biosynthesis genes, and severely reduced levels of the main tomato SGAs α-tomatine and dehydrotomatine. In contrast, basal expression of genes involved in PPC biosynthesis was not affected. CRISPR-Cas9(VQR) genome editing of a specific cis-regulatory element, targeted by MYC1/2, in the promoter of a SGA precursor biosynthesis gene led to decreased constitutive expression of this gene, but did not affect its jasmonate inducibility. Our results demonstrate that clade IIIe bHLH transcriptional regulators have evolved under the control of distinct regulatory cues to specifically steer constitutive and stress-inducible specialized metabolism.
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Affiliation(s)
- Gwen Swinnen
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052, Ghent, Belgium
| | - Margaux De Meyer
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052, Ghent, Belgium
| | - Jacob Pollier
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052, Ghent, Belgium
- VIB Metabolomics Core, 9052, Ghent, Belgium
| | - Francisco Javier Molina-Hidalgo
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052, Ghent, Belgium
| | - Evi Ceulemans
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052, Ghent, Belgium
| | - Jhon Venegas-Molina
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052, Ghent, Belgium
| | - Liesbeth De Milde
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052, Ghent, Belgium
| | - Patricia Fernández-Calvo
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052, Ghent, Belgium
| | - Mily Ron
- Department of Plant Biology, University of California, Davis, Davis, CA, 95616, USA
| | - Laurens Pauwels
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052, Ghent, Belgium
| | - Alain Goossens
- Department of Plant Biotechnology and Bioinformatics, Ghent University, 9052, Ghent, Belgium
- VIB Center for Plant Systems Biology, 9052, Ghent, Belgium
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7
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Arinaitwe W, Guyon A, Tungadi TD, Cunniffe NJ, Rhee SJ, Khalaf A, Mhlanga NM, Pate AE, Murphy AM, Carr JP. The Effects of Cucumber Mosaic Virus and Its 2a and 2b Proteins on Interactions of Tomato Plants with the Aphid Vectors Myzus persicae and Macrosiphum euphorbiae. Viruses 2022; 14:v14081703. [PMID: 36016326 PMCID: PMC9416248 DOI: 10.3390/v14081703] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 07/26/2022] [Accepted: 07/28/2022] [Indexed: 02/02/2023] Open
Abstract
Cucumber mosaic virus (CMV), a major tomato pathogen, is aphid-vectored in the non-persistent manner. We investigated if CMV-induced volatile organic compounds (VOCs) or other virus-induced cues alter aphid-tomato interactions. Y-tube olfactometry showed that VOCs emitted by plants infected with CMV (strain Fny) attracted generalist (Myzus persicae) and Solanaceae specialist (Macrosiphum euphorbiae) aphids. Myzus persicae preferred settling on infected plants (3 days post-inoculation: dpi) at 1h post-release, but at 9 and 21 dpi, aphids preferentially settled on mock-inoculated plants. Macrosiphum euphorbiae showed no strong preference for mock-inoculated versus infected plants at 3 dpi but settled preferentially on mock-inoculated plants at 9 and 21 dpi. In darkness aphids showed no settling or migration bias towards either mock-inoculated or infected plants. However, tomato VOC blends differed in light and darkness, suggesting aphids respond to a complex mix of olfactory, visual, and other cues influenced by infection. The LS-CMV strain induced no changes in aphid-plant interactions. Experiments using inter-strain recombinant and pseudorecombinant viruses showed that the Fny-CMV 2a and 2b proteins modified tomato interactions with Macrosiphum euphorbiae and Myzus persicae, respectively. The defence signal salicylic acid prevents excessive CMV-induced damage to tomato plants but is not involved in CMV-induced changes in aphid-plant interactions.
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Affiliation(s)
- Warren Arinaitwe
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (W.A.); (A.G.); (T.D.T.); (N.J.C.); (S.-J.R.); (A.K.); (N.M.M.); (A.E.P.); (A.M.M.)
- Alliance of Bioversity International and International Center for Tropical Agriculture (CIAT), Dong Dok, Ban Nongviengkham, Vientiane CB10 1RQ, Laos
| | - Alex Guyon
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (W.A.); (A.G.); (T.D.T.); (N.J.C.); (S.-J.R.); (A.K.); (N.M.M.); (A.E.P.); (A.M.M.)
- Sainsbury Laboratory, Cambridge University, Bateman St, Cambridge CB2 1LR, UK
| | - Trisna D. Tungadi
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (W.A.); (A.G.); (T.D.T.); (N.J.C.); (S.-J.R.); (A.K.); (N.M.M.); (A.E.P.); (A.M.M.)
- School of Life Sciences, Keele University, Newcastle ST5 5BG, UK
| | - Nik J. Cunniffe
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (W.A.); (A.G.); (T.D.T.); (N.J.C.); (S.-J.R.); (A.K.); (N.M.M.); (A.E.P.); (A.M.M.)
| | - Sun-Ju Rhee
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (W.A.); (A.G.); (T.D.T.); (N.J.C.); (S.-J.R.); (A.K.); (N.M.M.); (A.E.P.); (A.M.M.)
| | - Amjad Khalaf
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (W.A.); (A.G.); (T.D.T.); (N.J.C.); (S.-J.R.); (A.K.); (N.M.M.); (A.E.P.); (A.M.M.)
- Wellcome Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Saffron Walden CB10 1RQ, UK
| | - Netsai M. Mhlanga
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (W.A.); (A.G.); (T.D.T.); (N.J.C.); (S.-J.R.); (A.K.); (N.M.M.); (A.E.P.); (A.M.M.)
- National Institute for Agricultural Botany-East Malling (NIAB-EMR), West Malling ME19 6BJ, UK
| | - Adrienne E. Pate
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (W.A.); (A.G.); (T.D.T.); (N.J.C.); (S.-J.R.); (A.K.); (N.M.M.); (A.E.P.); (A.M.M.)
| | - Alex M. Murphy
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (W.A.); (A.G.); (T.D.T.); (N.J.C.); (S.-J.R.); (A.K.); (N.M.M.); (A.E.P.); (A.M.M.)
| | - John P. Carr
- Department of Plant Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EA, UK; (W.A.); (A.G.); (T.D.T.); (N.J.C.); (S.-J.R.); (A.K.); (N.M.M.); (A.E.P.); (A.M.M.)
- Correspondence:
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8
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MacIntyre AM, Meline V, Gorman Z, Augustine SP, Dye CJ, Hamilton CD, Iyer-Pascuzzi AS, Kolomiets MV, McCulloh KA, Allen C. Trehalose increases tomato drought tolerance, induces defenses, and increases resistance to bacterial wilt disease. PLoS One 2022; 17:e0266254. [PMID: 35476629 PMCID: PMC9045674 DOI: 10.1371/journal.pone.0266254] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 03/16/2022] [Indexed: 12/13/2022] Open
Abstract
Ralstonia solanacearum causes bacterial wilt disease, leading to severe crop losses. Xylem sap from R. solanacearum-infected tomato is enriched in the disaccharide trehalose. Water-stressed plants also accumulate trehalose, which increases drought tolerance via abscisic acid (ABA) signaling. Because R. solanacearum-infected plants suffer reduced water flow, we hypothesized that bacterial wilt physiologically mimics drought stress, which trehalose could mitigate. We found that R. solanacearum-infected plants differentially expressed drought-associated genes, including those involved in ABA and trehalose metabolism, and had more ABA in xylem sap. Consistent with this, treating tomato roots with ABA reduced both stomatal conductance and stem colonization by R. solanacearum. Treating roots with trehalose increased xylem sap ABA and reduced plant water use by lowering stomatal conductance and temporarily improving water use efficiency. Trehalose treatment also upregulated expression of salicylic acid (SA)-dependent tomato defense genes; increased xylem sap levels of SA and other antimicrobial compounds; and increased bacterial wilt resistance of SA-insensitive NahG tomato plants. Additionally, trehalose treatment increased xylem concentrations of jasmonic acid and related oxylipins. Finally, trehalose-treated plants were substantially more resistant to bacterial wilt disease. Together, these data show that exogenous trehalose reduced both water stress and bacterial wilt disease and triggered systemic disease resistance, possibly through a Damage Associated Molecular Pattern (DAMP) response pathway. This suite of responses revealed unexpected linkages between plant responses to biotic and abiotic stress and suggested that R. solanacearum-infected plants increase trehalose to improve water use efficiency and increase wilt disease resistance. The pathogen may degrade trehalose to counter these efforts. Together, these results suggest that treating tomatoes with exogenous trehalose could be a practical strategy for bacterial wilt management.
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Affiliation(s)
- April M. MacIntyre
- Department of Plant Pathology, University of Wisconsin-Madison, Madison, WI, United States of America
- Department of Bacteriology, University of Wisconsin-Madison, Madison, WI, United States of America
| | - Valerian Meline
- Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN, United States of America
| | - Zachary Gorman
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, United States of America
| | - Steven P. Augustine
- Department of Botany, University of Wisconsin-Madison, Madison, WI, United States of America
| | - Carolyn J. Dye
- Department of Plant Pathology, University of Wisconsin-Madison, Madison, WI, United States of America
| | - Corri D. Hamilton
- Department of Plant Pathology, University of Wisconsin-Madison, Madison, WI, United States of America
| | - Anjali S. Iyer-Pascuzzi
- Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN, United States of America
| | - Michael V. Kolomiets
- Department of Plant Pathology and Microbiology, Texas A&M University, College Station, TX, United States of America
| | - Katherine A. McCulloh
- Department of Botany, University of Wisconsin-Madison, Madison, WI, United States of America
| | - Caitilyn Allen
- Department of Plant Pathology, University of Wisconsin-Madison, Madison, WI, United States of America
- * E-mail:
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9
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Qi S, Zhang S, Islam MM, El-Sappah AH, Zhang F, Liang Y. Natural Resources Resistance to Tomato Spotted Wilt Virus (TSWV) in Tomato ( Solanum lycopersicum). Int J Mol Sci 2021; 22:ijms222010978. [PMID: 34681638 PMCID: PMC8538096 DOI: 10.3390/ijms222010978] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 10/05/2021] [Accepted: 10/06/2021] [Indexed: 12/26/2022] Open
Abstract
Tomato spotted wilt virus (TSWV) is one of the most destructive diseases affecting tomato (Solanum lycopersicum) cultivation and production worldwide. As defenses against TSWV, natural resistance genes have been identified in tomato, including Sw-1a, Sw-1b, sw-2, sw-3, sw-4, Sw-5, Sw-6, and Sw-7. However, only Sw-5 exhibits a high level of resistance to the TSWV. Thus, it has been cloned and widely used in the breeding of tomato with resistance to the disease. Due to the global spread of TSWV, resistance induced by Sw-5 decreases over time and can be overcome or broken by a high concentration of TSWV. How to utilize other resistance genes and identify novel resistance resources are key approaches for breeding tomato with resistance to TSWV. In this review, the characteristics of natural resistance genes, natural resistance resources, molecular markers for assisted selection, and methods for evaluating resistance to TSWV are summarized. The aim is to provide a theoretical basis for identifying, utilizing resistance genes, and developing tomato varieties that are resistant to TSWV.
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Affiliation(s)
- Shiming Qi
- College of Horticulture, Northwest A&F University, Xianyang 712100, China; (S.Q.); (S.Z.); (M.M.I.); (A.H.E.-S.); (F.Z.)
- State Agriculture Ministry Laboratory of Northwest Horticultural Plant Germplasm Resources & Genetic Improvement, Northwest A&F University, Xianyang 712100, China
| | - Shijie Zhang
- College of Horticulture, Northwest A&F University, Xianyang 712100, China; (S.Q.); (S.Z.); (M.M.I.); (A.H.E.-S.); (F.Z.)
- State Agriculture Ministry Laboratory of Northwest Horticultural Plant Germplasm Resources & Genetic Improvement, Northwest A&F University, Xianyang 712100, China
| | - Md. Monirul Islam
- College of Horticulture, Northwest A&F University, Xianyang 712100, China; (S.Q.); (S.Z.); (M.M.I.); (A.H.E.-S.); (F.Z.)
- State Agriculture Ministry Laboratory of Northwest Horticultural Plant Germplasm Resources & Genetic Improvement, Northwest A&F University, Xianyang 712100, China
| | - Ahmed H. El-Sappah
- College of Horticulture, Northwest A&F University, Xianyang 712100, China; (S.Q.); (S.Z.); (M.M.I.); (A.H.E.-S.); (F.Z.)
- State Agriculture Ministry Laboratory of Northwest Horticultural Plant Germplasm Resources & Genetic Improvement, Northwest A&F University, Xianyang 712100, China
- Genetics Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Fei Zhang
- College of Horticulture, Northwest A&F University, Xianyang 712100, China; (S.Q.); (S.Z.); (M.M.I.); (A.H.E.-S.); (F.Z.)
- State Agriculture Ministry Laboratory of Northwest Horticultural Plant Germplasm Resources & Genetic Improvement, Northwest A&F University, Xianyang 712100, China
| | - Yan Liang
- College of Horticulture, Northwest A&F University, Xianyang 712100, China; (S.Q.); (S.Z.); (M.M.I.); (A.H.E.-S.); (F.Z.)
- State Agriculture Ministry Laboratory of Northwest Horticultural Plant Germplasm Resources & Genetic Improvement, Northwest A&F University, Xianyang 712100, China
- Correspondence: ; Tel.: +86-29-8708-2613
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10
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Rivero J, Lidoy J, Llopis-Giménez Á, Herrero S, Flors V, Pozo MJ. Mycorrhizal symbiosis primes the accumulation of antiherbivore compounds and enhances herbivore mortality in tomato. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:5038-5050. [PMID: 33884424 PMCID: PMC8219033 DOI: 10.1093/jxb/erab171] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 04/19/2021] [Indexed: 05/06/2023]
Abstract
Plant association with arbuscular mycorrhizal fungi (AMF) can increase their ability to overcome multiple stresses, but their impact on plant interactions with herbivorous insects is controversial. Here we show higher mortality of the leaf-chewer Spodoptera exigua when fed on tomato plants colonized by the AMF Funneliformis mosseae, evidencing mycorrhiza-induced resistance. In search of the underlying mechanisms, an untargeted metabolomic analysis through ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS) was performed. The results showed that mycorrhizal symbiosis had a very limited impact on the leaf metabolome in the absence of stress, but significantly modulated the response to herbivory in the damaged area. A cluster of over accumulated metabolites was identified in those leaflets damaged by S. exigua feeding in mycorrhizal plants, while unwounded distal leaflets responded similar to those from non-mycorrhizal plants. These primed-compounds were mostly related to alkaloids, fatty acid derivatives and phenylpropanoid-polyamine conjugates. The deleterious effect on larval survival of some of these compounds, including the alkaloid physostigmine, the fatty acid derivatives 4-oxododecanedioic acid and azelaic acid, was confirmed. Thus, our results evidence the impact of AMF on metabolic reprograming upon herbivory that leads to a primed accumulation of defensive compounds.
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Affiliation(s)
- Javier Rivero
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - Javier Lidoy
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
| | - Ángel Llopis-Giménez
- Department of Genetics and Institut Universitari en Biotecnologia i Biomedicina (BIOTECMED), Universitat de València, Burjassot, Spain
| | - Salvador Herrero
- Department of Genetics and Institut Universitari en Biotecnologia i Biomedicina (BIOTECMED), Universitat de València, Burjassot, Spain
| | - Víctor Flors
- Metabolic Integration and Cell Signaling Laboratory, Plant Physiology Section, Unidad Asociada al Consejo Superior de Investigaciones Científicas (EEZ-CSIC)-Department of Ciencias Agrarias y del Medio Natural, Universitat Jaume I, Castellón, Spain
| | - María J Pozo
- Department of Soil Microbiology and Symbiotic Systems, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas (CSIC), Granada, Spain
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11
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Symptom Severity, Infection Progression and Plant Responses in Solanum Plants Caused by Three Pospiviroids Vary with the Inoculation Procedure. Int J Mol Sci 2021; 22:ijms22126189. [PMID: 34201240 PMCID: PMC8273692 DOI: 10.3390/ijms22126189] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 05/31/2021] [Accepted: 06/02/2021] [Indexed: 11/17/2022] Open
Abstract
Infectious viroid clones consist of dimeric cDNAs used to generate transcripts which mimic the longer-than-unit replication intermediates. These transcripts can be either generated in vitro or produced in vivo by agro-inoculation. We have designed a new plasmid, which allows both inoculation methods, and we have compared them by infecting Solanum lycopersicum and Solanum melongena with clones of Citrus exocortis virod (CEVd), Tomato chlorotic dwarf viroid (TCDVd), and Potato spindle tuber viroid (PSTVd). Our results showed more uniform and severe symptoms in agro-inoculated plants. Viroid accumulation and the proportion of circular and linear forms were different depending on the host and the inoculation method and did not correlate with the symptoms, which correlated with an increase in PR1 induction, accumulation of the defensive signal molecules salicylic (SA) and gentisic (GA) acids, and ribosomal stress in tomato plants. The alteration in ribosome biogenesis was evidenced by both the upregulation of the tomato ribosomal stress marker SlNAC082 and the impairment in 18S rRNA processing, pointing out ribosomal stress as a novel signature of the pathogenesis of nuclear-replicating viroids. In conclusion, this updated binary vector has turned out to be an efficient and reproducible method that will facilitate the studies of viroid–host interactions.
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12
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Thepbandit W, Papathoti NK, Daddam JR, Thumanu K, Siriwong S, Thanh TL, Buensanteai N. Identification of Salicylic Acid Mechanism against Leaf Blight Disease in Oryza sativa by SR-FTIR Microspectroscopic and Docking Studies. Pathogens 2021; 10:652. [PMID: 34074035 PMCID: PMC8225197 DOI: 10.3390/pathogens10060652] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/09/2021] [Accepted: 05/19/2021] [Indexed: 01/05/2023] Open
Abstract
The present study was to investigate the application and mechanism of salicylic acid (SA) as SA-Ricemate for the control of leaf blight disease using a Synchrotron Radiation-based Fourier-Transform Infra-Red (SR-FTIR) microspectroscopy and docking studies. After treating rice plants cv. KDML 105 with SA-Ricemate, the leaves were inoculated with Xanthomonas oryzae pv. oryzae, the causal agent of leaf blight, and disease severity were assessed. The leaves were also used to detect changes in endogenous SA content. The results indicated that SA-Ricemate, as an activated compound, reduced disease severity by 60% at three weeks post-inoculation and increased endogenous content by 50%. The SR-FTIR analysis of changes in the mesophyll of leaves (treated and untreated) showed that the groups of lipids, pectins, and proteins amide I and amide II occurred at higher values, and polysaccharides were shown at lower values in treated compared to untreated. Besides, docking studies were used to model a three-dimensional structure for Pathogenesis-related (PR1b) protein and further identify its interaction with SA. The results showed that ASP28, ARG31, LEU32, GLN97, and ALA93 are important residues that have strong hydrogen bonds with SA. The docking results showed that SA has a good interaction, confirming its role in expression.
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Affiliation(s)
- Wannaporn Thepbandit
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (W.T.); (N.K.P.)
| | - Narendra Kumar Papathoti
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (W.T.); (N.K.P.)
| | - Jayasimha Rayalu Daddam
- Department of Animal Science, Agriculture Research Organization, Volcani Center, Rishon Lezion 7505101, Israel;
| | - Kanjana Thumanu
- Synchrotron Light Research Institute, Nakhon Ratchasima 30000, Thailand; (K.T.); (S.S.)
| | - Supatcharee Siriwong
- Synchrotron Light Research Institute, Nakhon Ratchasima 30000, Thailand; (K.T.); (S.S.)
| | - Toan Le Thanh
- Department of Plant Protection, Can Tho University, Can Tho City 900000, Vietnam;
| | - Natthiya Buensanteai
- School of Crop Production Technology, Institute of Agricultural Technology, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand; (W.T.); (N.K.P.)
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13
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Zhou F, Last RL, Pichersky E. Degradation of salicylic acid to catechol in Solanaceae by SA 1-hydroxylase. PLANT PHYSIOLOGY 2021; 185:876-891. [PMID: 33793924 PMCID: PMC8133591 DOI: 10.1093/plphys/kiaa096] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 12/07/2020] [Indexed: 05/16/2023]
Abstract
The hormone salicylic acid (SA) plays crucial roles in plant defense, stress responses, and in the regulation of plant growth and development. Whereas the biosynthetic pathways and biological functions of SA have been extensively studied, SA catabolism is less well understood. In this study, we report the identification and functional characterization of an FAD/NADH-dependent SA 1-hydroxylase from tomato (Solanum lycopersicum; SlSA1H), which catalyzes the oxidative decarboxylation of SA to catechol. Transcript levels of SlSA1H were highest in stems and its expression was correlated with the formation of the methylated catechol derivatives guaiacol and veratrole. Consistent with a role in SA catabolism, SlSA1H RNAi plants accumulated lower amounts of guaiacol and failed to produce any veratrole. Two O-methyltransferases involved in the conversion of catechol to guaiacol and guaiacol to veratrole were also functionally characterized. Subcellular localization analyses revealed the cytosolic localization of this degradation pathway. Phylogenetic analysis and functional characterization of SA1H homologs from other species indicated that this type of FAD/NADH-dependent SA 1-hydroxylases evolved recently within the Solanaceae family.
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Affiliation(s)
- Fei Zhou
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Robert L Last
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48823, USA
- Department of Plant Biology, Michigan State University, East Lansing, MI 48823, USA
| | - Eran Pichersky
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA
- Author for correspondence:
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14
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Roumani M, Besseau S, Gagneul D, Robin C, Larbat R. Phenolamides in plants: an update on their function, regulation, and origin of their biosynthetic enzymes. JOURNAL OF EXPERIMENTAL BOTANY 2021; 72:2334-2355. [PMID: 33315095 DOI: 10.1093/jxb/eraa582] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 12/09/2020] [Indexed: 06/12/2023]
Abstract
Phenolamides represent a family of specialized metabolites, consisting of the association of hydroxycinnamic acid derivatives with aliphatic or aromatic amines. Since the discovery of the first phenolamide in the late 1940s, decades of phytochemical analyses have revealed a high structural diversity for this family and a wide distribution in the plant kingdom. The occurrence of structurally diverse phenolamides in almost all plant organs has led to early hypotheses on their involvement in floral initiation and fertility, as well as plant defense against biotic and abiotic stress. In the present work, we critically review the literature ascribing functional hypotheses to phenolamides and recent evidence on the control of their biosynthesis in response to biotic stress. We additionally provide a phylogenetic analysis of the numerous N-hydroxycinnamoyltransferases involved in the synthesis of phenolamides and discuss the potential role of other enzyme families in their diversification. The data presented suggest multiple evolutionary events that contributed to the extension of the taxonomic distribution and diversity of phenolamides.
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Affiliation(s)
- Marwa Roumani
- UMR 1121, Laboratoire Agronomie et Environnement (LAE), Université de Lorraine- INRAe, Nancy, France
| | - Sébastien Besseau
- EA 2106, Biomolécules et biotechnologies végétales (BBV), Université de Tours, Tours, France
| | - David Gagneul
- UMR 1158, BioEcoAgro, Université de Lille, INRAe, Université de Liège, UPJV, YNCREA, Université d'Artois, Université Littoral Côte d'Opale, Institut Charles Viollette (ICV), Lille, France
| | - Christophe Robin
- UMR 1121, Laboratoire Agronomie et Environnement (LAE), Université de Lorraine- INRAe, Nancy, France
| | - Romain Larbat
- UMR 1121, Laboratoire Agronomie et Environnement (LAE), Université de Lorraine- INRAe, Nancy, France
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15
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Hernández-Aparicio F, Lisón P, Rodrigo I, Bellés JM, López-Gresa MP. Signaling in the Tomato Immunity against Fusarium oxysporum. Molecules 2021; 26:1818. [PMID: 33804901 PMCID: PMC8036676 DOI: 10.3390/molecules26071818] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 03/18/2021] [Accepted: 03/20/2021] [Indexed: 11/16/2022] Open
Abstract
New strategies of control need to be developed with the aim of economic and environmental sustainability in plant and crop protection. Metabolomics is an excellent platform for both understanding the complex plant-pathogen interactions and unraveling new chemical control strategies. GC-MS-based metabolomics, along with a phytohormone analysis of a compatible and incompatible interaction between tomato plants and Fusarium oxysporum f. sp. lycopersici, revealed the specific volatile chemical composition and the plant signals associated with them. The susceptible tomato plants were characterized by the over-emission of methyl- and ethyl-salicylate as well as some fatty acid derivatives, along with an activation of salicylic acid and abscisic acid signaling. In contrast, terpenoids, benzenoids, and 2-ethylhexanoic acid were differentially emitted by plants undergoing an incompatible interaction, together with the activation of the jasmonic acid (JA) pathway. In accordance with this response, a higher expression of several genes participating in the biosynthesis of these volatiles, such as MTS1, TomloxC,TomloxD, and AOS, as well as JAZ7, a JA marker gene, was found to be induced by the fungus in these resistant plants. The characterized metabolome of the immune tomato plants could lead to the development of new resistance inducers against Fusarium wilt treatment.
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Affiliation(s)
| | | | | | | | - M. Pilar López-Gresa
- Instituto de Biología Molecular y Celular de Plantas, Universitat Politècnica de València—Consejo Superior de Investigaciones Científicas, 46022 Valencia, Spain; (F.H.-A.); (P.L.); (I.R.); (J.M.B.)
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16
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Changwal C, Shukla T, Hussain Z, Singh N, Kar A, Singh VP, Abdin MZ, Arora A. Regulation of Postharvest Tomato Fruit Ripening by Endogenous Salicylic Acid. FRONTIERS IN PLANT SCIENCE 2021; 12:663943. [PMID: 34163503 PMCID: PMC8216237 DOI: 10.3389/fpls.2021.663943] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 04/06/2021] [Indexed: 05/22/2023]
Abstract
Exogenous application of salicylic acid (SA) has been known for delaying ripening in many fruit and vegetables. But the function of endogenous SA in relation to postharvest fruit performance is still unexplored. To understand the role of endogenous SA in postharvest fruit ripening of tomato, 33 tomato lines were examined for their endogenous SA content, membrane stability index (MSI), and shelf life (SL) at turning and red stages of tomato fruit ripening. Six tomato lines having contrasting shelf lives from these categories were subjected further for ethylene (ET) evolution, 1-aminocyclopropane-1-carboxylic acid synthase (ACS), 1-aminocyclopropane-1-carboxylic acid oxidase (ACO), polygalacturonase (PG), pectin methyl esterase (PME), antioxidant assays and lipid peroxidation. It was found that high endogenous SA has a direct association with low ET evolution, which leads to the high SL of fruit. High lycopene content was also found to be correlated with high SA. Total antioxidants, PG, and PME decreased and lipid peroxidation increased from turning to red stage of tomato fruit development. Furthermore, these lines were subjected to expression analysis for SA biosynthesis enzymes viz. Solanum lycopersicum Isochorismate Synthase (SlICS) and SlPAL. Real-time PCR data revealed that high SL lines have high SlPAL4 expression and low SL lines have high SlPAL6 expression. Based on the results obtained in this study, it was concluded that endogenous SA regulates ET evolution and SL with the aid of the antioxidative defense system, and SlPAL4 and SlPAL6 genes play significant but opposite roles during fruit ripening.
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Affiliation(s)
- Chunoti Changwal
- Division of Plant Physiology, ICAR - Indian Agricultural Research Institute, New Delhi, India
- Department of Biotechnology, Faculty of Science, Center for Transgenic Plant Development, Jamia Hamdard, New Delhi, India
| | - Tushita Shukla
- Division of Plant Physiology, ICAR - Indian Agricultural Research Institute, New Delhi, India
| | - Zakir Hussain
- Division of Vegetable Sciences, ICAR - Indian Agricultural Research Institute, New Delhi, India
| | - Neera Singh
- Division of Agricultural Chemicals, ICAR - Indian Agricultural Research Institute, New Delhi, India
| | - Abhijit Kar
- Division of Post-harvest Technology, ICAR - Indian Agricultural Research Institute, New Delhi, India
| | - Virendra P. Singh
- Division of Plant Physiology, ICAR - Indian Agricultural Research Institute, New Delhi, India
| | - M. Z. Abdin
- Department of Biotechnology, Faculty of Science, Center for Transgenic Plant Development, Jamia Hamdard, New Delhi, India
| | - Ajay Arora
- Division of Plant Physiology, ICAR - Indian Agricultural Research Institute, New Delhi, India
- *Correspondence: Ajay Arora
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17
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Leonard W, Zhang P, Ying D, Fang Z. Tyramine-derived hydroxycinnamic acid amides in plant foods: sources, synthesis, health effects and potential applications in food industry. Crit Rev Food Sci Nutr 2020; 62:1608-1625. [PMID: 33206548 DOI: 10.1080/10408398.2020.1845603] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Tyramine-derived hydroxycinnamic acid amines (HCAAT) are naturally occurring group of secondary metabolites present in various plant genera, such as Allium, Cannabis, Lycium, Polyganotum and Solanum. It belongs to the neutral, water-insoluble compounds and plays a role in plant growth, development and defence mechanism. The past two decades have seen a shift in the study of HCAAT from its role in plants to its potent biological activities. This review highlights the sources, roles in plants, biosynthetic pathways, metabolic engineering and chemical synthesis of HCAAT. The biological properties of HCAAT remain the focus in this paper, including antioxidant, anti-inflammatory, anti-cancer, anti-diabetic, anti-melanogenesis and neuroprotective properties. The effects of food processing and technology on HCAAT are also discussed. Given the current research gap, this review proposes future directions on the study of HCAAT, as well as its potential applications in food and pharmaceutical industry.
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Affiliation(s)
- William Leonard
- School of Agriculture and Food, The University of Melbourne, Melbourne, Victoria, Australia
| | - Pangzhen Zhang
- School of Agriculture and Food, The University of Melbourne, Melbourne, Victoria, Australia
| | - Danyang Ying
- CSIRO Agriculture & Food, Werribee, Victoria, Australia
| | - Zhongxiang Fang
- School of Agriculture and Food, The University of Melbourne, Melbourne, Victoria, Australia
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18
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Marwal A, Gaur RK. Host Plant Strategies to Combat Against Viruses Effector Proteins. Curr Genomics 2020; 21:401-410. [PMID: 33093803 PMCID: PMC7536791 DOI: 10.2174/1389202921999200712135131] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/17/2020] [Accepted: 06/19/2020] [Indexed: 02/02/2023] Open
Abstract
Viruses are obligate parasites that exist in an inactive state until they enter the host body. Upon entry, viruses become active and start replicating by using the host cell machinery. All plant viruses can augment their transmission, thus powering their detrimental effects on the host plant. To diminish infection and diseases caused by viruses, the plant has a defence mechanism known as pathogenesis-related biochemicals, which are metabolites and proteins. Proteins that ultimately prevent pathogenic diseases are called R proteins. Several plant R genes (that confirm resistance) and avirulence protein (Avr) (pathogen Avr gene-encoded proteins [effector/elicitor proteins involved in pathogenicity]) molecules have been identified. The recognition of such a factor results in the plant defence mechanism. During plant viral infection, the replication and expression of a viral molecule lead to a series of a hypersensitive response (HR) and affect the host plant's immunity (pathogen-associated molecular pattern-triggered immunity and effector-triggered immunity). Avr protein renders the host RNA silencing mechanism and its innate immunity, chiefly known as silencing suppressors towards the plant defensive machinery. This is a strong reply to the plant defensive machinery by harmful plant viruses. In this review, we describe the plant pathogen resistance protein and how these proteins regulate host immunity during plant-virus interactions. Furthermore, we have discussed regarding ribosome-inactivating proteins, ubiquitin proteasome system, translation repression (nuclear shuttle protein interacting kinase 1), DNA methylation, dominant resistance genes, and autophagy-mediated protein degradation, which are crucial in antiviral defences.
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Affiliation(s)
- Avinash Marwal
- 1Department of Biotechnology, Vigyan Bhawan - Block B, New Campus, Mohanlal Sukhadia University, Udaipur, Rajasthan - 313001, India; 2Department of Biotechnology, Deen Dayal Upadhyay Gorakhpur University, Gorakhpur, Uttar Pradesh - 273009, India
| | - Rajarshi Kumar Gaur
- 1Department of Biotechnology, Vigyan Bhawan - Block B, New Campus, Mohanlal Sukhadia University, Udaipur, Rajasthan - 313001, India; 2Department of Biotechnology, Deen Dayal Upadhyay Gorakhpur University, Gorakhpur, Uttar Pradesh - 273009, India
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19
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Brouwer SM, Odilbekov F, Burra DD, Lenman M, Hedley PE, Grenville-Briggs L, Alexandersson E, Liljeroth E, Andreasson E. Intact salicylic acid signalling is required for potato defence against the necrotrophic fungus Alternaria solani. PLANT MOLECULAR BIOLOGY 2020; 104:1-19. [PMID: 32562056 PMCID: PMC7417411 DOI: 10.1007/s11103-020-01019-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 06/02/2020] [Indexed: 05/27/2023]
Abstract
KEY MESSAGE Using disease bioassays and transcriptomic analysis we show that intact SA-signalling is required for potato defences against the necrotrophic fungal pathogen Alternaria solani. ABSTRACT Early blight, caused by the necrotrophic fungus Alternaria solani, is an increasing problem in potato cultivation. Studies of the molecular components defining defence responses to A. solani in potato are limited. Here, we investigate plant defence signalling with a focus on salicylic acid (SA) and jasmonic acid (JA) pathways in response to A. solani. Our bioassays revealed that SA is necessary to restrict pathogen growth and early blight symptom development in both potato foliage and tubers. This result is in contrast to the documented minimal role of SA in resistance of Arabidopsis thaliana against necrotrophic pathogens. We also present transcriptomic analysis with 36 arrays of A. solani inoculated SA-deficient, JA-insensitive, and wild type plant lines. A greater number of genes are differentially expressed in the SA-deficient mutant plant line compared to the wild type and JA- insensitive line. In wild type plants, genes encoding metal ion transporters, such as copper, iron and zinc transporters were upregulated and transferase-encoding genes, for example UDP-glucoronosyltransferase and Serine-glyoxylate transferase, were downregulated. The SA-deficient plants show upregulation of genes enriched in GO terms related to oxidoreductase activity, respiratory chain and other mitochondrial-related processes. Pathogenesis-related genes, such as genes encoding chitinases and PR1, are upregulated in both the SA-deficient and wild type plants, but not in the JA-insensitive mutants. The combination of our bioassays and the transcriptomic analysis indicate that intact SA signalling, and not JA signalling, is required for potato defences against the necrotrophic pathogen A. solani. ELECTRONIC SUPPLEMENTARY MATERIAL The online version of this article (10.1007/s11103-020-01019-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sophie M Brouwer
- Department of Plant Protection Biology, Swedish Agricultural University, Alnarp, Sweden
| | - Firuz Odilbekov
- Department of Plant Protection Biology, Swedish Agricultural University, Alnarp, Sweden
| | - Dharani Dhar Burra
- Department of Plant Protection Biology, Swedish Agricultural University, Alnarp, Sweden
| | - Marit Lenman
- Department of Plant Protection Biology, Swedish Agricultural University, Alnarp, Sweden
| | - Pete E Hedley
- Department of Cell and Molecular Sciences, Genome Technology, James Hutton Institute, Dundee, Scotland, UK
| | | | - Erik Alexandersson
- Department of Plant Protection Biology, Swedish Agricultural University, Alnarp, Sweden
| | - Erland Liljeroth
- Department of Plant Protection Biology, Swedish Agricultural University, Alnarp, Sweden
| | - Erik Andreasson
- Department of Plant Protection Biology, Swedish Agricultural University, Alnarp, Sweden.
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20
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Więsyk A, Lirski M, Fogtman A, Zagórski-Ostoja W, Góra-Sochacka A. Differences in gene expression profiles at the early stage of Solanum lycopersicum infection with mild and severe variants of potato spindle tuber viroid. Virus Res 2020; 286:198090. [PMID: 32634444 DOI: 10.1016/j.virusres.2020.198090] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 07/02/2020] [Accepted: 07/03/2020] [Indexed: 02/07/2023]
Abstract
Viroids with small, non-coding circular RNA genome can induce diseases in many plant species. The extend of infection symptoms depends on environmental conditions, viroid strain, and host plant species and cultivar. Pathogen recognition leads to massive transcriptional reprogramming to favor defense responses over normal cellular functions. To better understand the interaction between plant host and potato spindle tuber viroid (PSTVd) variants that differ in their virulence, comparative transcriptomic analysis was performed by an RNA-seq approach. The changes of gene expression were analyzed at the time point when subtle symptoms became visible in plants infected with the severe PSTVd-S23 variant, while those infected with the mild PSTVd-M variant looked like non-infected healthy plants. Over 3000 differentially expressed genes (DEGs) were recognized in both infections, but the majority of them were specific for infection with the severe variant. In both infections recognized DEGs were mainly related to biotic stress, hormone metabolism and signaling, transcription regulation, protein degradation, and transport. The DEGs related to cell cycle and microtubule were uniquely down-regulated only in the PSTVd-S23-infected plants. Similarly, expression of transcription factors from C2C2-GATA and growth-regulating factor (GRF) families was only altered upon infection with the severe variant. Both PSTVd variants triggered plant immune response; however expression of genes encoding crucial factors of this process was markedly more changed in the plants infected with the severe variant than in those with the mild one.
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Affiliation(s)
- Aneta Więsyk
- Institute of Biochemistry and Biophysics Polish Academy of Sciences, Pawińskiego 5A, 02-106, Warsaw, Poland
| | - Maciej Lirski
- Institute of Biochemistry and Biophysics Polish Academy of Sciences, Pawińskiego 5A, 02-106, Warsaw, Poland
| | - Anna Fogtman
- Institute of Biochemistry and Biophysics Polish Academy of Sciences, Pawińskiego 5A, 02-106, Warsaw, Poland
| | | | - Anna Góra-Sochacka
- Institute of Biochemistry and Biophysics Polish Academy of Sciences, Pawińskiego 5A, 02-106, Warsaw, Poland.
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21
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Nehela Y, Killiny N. The unknown soldier in citrus plants: polyamines-based defensive mechanisms against biotic and abiotic stresses and their relationship with other stress-associated metabolites. PLANT SIGNALING & BEHAVIOR 2020; 15:1761080. [PMID: 32408848 PMCID: PMC8570725 DOI: 10.1080/15592324.2020.1761080] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 04/20/2020] [Accepted: 04/21/2020] [Indexed: 05/07/2023]
Abstract
Citrus plants are challenged by a broad diversity of abiotic and biotic stresses, which definitely alter their growth, development, and productivity. In order to survive the various stressful conditions, citrus plants relay on multi-layered adaptive strategies, among which is the accumulation of stress-associated metabolites that play vital and complex roles in citrus defensive responses. These metabolites included amino acids, organic acids, fatty acids, phytohormones, polyamines (PAs), and other secondary metabolites. However, the contribution of PAs pathways in citrus defense responses is poorly understood. In this review article, we will discuss the recent metabolic, genetic, and molecular evidence illustrating the potential roles of PAs in citrus defensive responses against biotic and abiotic stressors. We believe that PAs-based defensive role, against biotic and abiotic stress in citrus, is involving the interaction with other stress-associated metabolites, particularly phytohormones. The knowledge gained so far about PAs-based defensive responses in citrus underpins our need for further genetic manipulation of PAs biosynthetic genes to produce transgenic citrus plants with modulated PAs content that may enhance the tolerance of citrus plants against stressful conditions. In addition, it provides valuable information for the potential use of PAs or their synthetic analogs and their emergence as a promising approach to practical applications in citriculture to enhance stress tolerance in citrus plants.
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Affiliation(s)
- Yasser Nehela
- Citrus Research and Education Center and Department of Plant Pathology, IFAS, University of Florida, Lake Alfred, FL, USA
| | - Nabil Killiny
- Citrus Research and Education Center and Department of Plant Pathology, IFAS, University of Florida, Lake Alfred, FL, USA
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22
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Ethylene is Involved in Symptom Development and Ribosomal Stress of Tomato Plants upon Citrus Exocortis Viroid Infection. PLANTS 2020; 9:plants9050582. [PMID: 32370199 PMCID: PMC7285140 DOI: 10.3390/plants9050582] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/29/2020] [Accepted: 04/30/2020] [Indexed: 01/17/2023]
Abstract
Citrus exocortis viroid (CEVd) is known to cause different symptoms in citrus trees, and its mechanism of infection has been studied in tomato as an experimental host, producing ribosomal stress on these plants. Some of the symptoms caused by CEVd in tomato plants resemble those produced by the phytohormone ethylene. The present study is focused on elucidating the relationship between CEVd infection and ethylene on disease development. To this purpose, the ethylene insensitive Never ripe (Nr) tomato mutants were infected with CEVd, and several aspects such as susceptibility to infection, defensive response, ethylene biosynthesis and ribosomal stress were studied. Phenotypic characterization revealed higher susceptibility to CEVd in these mutants, which correlated with higher expression levels of both defense and ethylene biosynthesis genes, as well as the ribosomal stress marker SlNAC082. In addition, Northern blotting revealed compromised ribosome biogenesis in all CEVd infected plants, particularly in Nr mutants. Our results indicate a higher ethylene biosynthesis in Nr mutants and suggest an important role of this phytohormone in disease development and ribosomal stress caused by viroid infection.
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23
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Nagai A, Torres PB, Duarte LML, Chaves ALR, Macedo AF, Floh EIS, de Oliveira LF, Zuccarelli R, Dos Santos DYAC. Signaling pathway played by salicylic acid, gentisic acid, nitric oxide, polyamines and non-enzymatic antioxidants in compatible and incompatible Solanum-tomato mottle mosaic virus interactions. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2020; 290:110274. [PMID: 31779908 DOI: 10.1016/j.plantsci.2019.110274] [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: 09/05/2019] [Accepted: 09/13/2019] [Indexed: 05/26/2023]
Abstract
Plants are exposed to a vast array of pathogens. The interaction between them may be classified in compatible and incompatible. Polyamines (PAs) are involved in defense responses, as well as salicylic acid (SA), gentisic acid (GA) and nitric oxide (NO), which can increase the content of reactive oxygen species (ROS), creating a harsh environment to the pathogen. ROS can also damage the host cell and they can be controlled by ascorbate and glutathione. Among phytopathogens, one of the major threats to tomato crops is tomato mottle mosaic virus (ToMMV). Resistance against this virus probably involves the Tm-22 gene. This work aimed to analyze signaling and antioxidant molecules in the defense response against ToMMV in Solanum pimpinellifolium and in S. lycopersicum 'VFNT'. In S. pimpinellifolium plants inoculated with ToMMV, an increase in NO, SA, GA, ascorbate and oxidized glutathione and a decrease in the content of PAs were observed. Characteristic symptoms of diseased plants and high absorbance values in PTA-ELISA indicated a compatible interaction. In VFNT-inoculated plants, less significant differences were noticed. Symptoms and viral concentration were not detected, indicating an incompatible interaction, possibly associated with the effector-triggered immunity (ETI) response.
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Affiliation(s)
- Alice Nagai
- Laboratório de Fitoquímica, Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil.
| | - Priscila Bezerra Torres
- Laboratório de Fitoquímica, Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | | | | | - Amanda Ferreira Macedo
- Laboratório de Biologia Celular de Plantas, Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | - Eny Iochevet Segal Floh
- Laboratório de Biologia Celular de Plantas, Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | - Leandro Francisco de Oliveira
- Laboratório de Biologia Celular de Plantas, Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
| | - Rafael Zuccarelli
- Laboratório de Fisiologia do Desenvolvimento Vegetal, Departamento de Botânica, Instituto de Biociências, Universidade de São Paulo, São Paulo, Brazil
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24
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Cottilli P, Belda-Palazón B, Adkar-Purushothama CR, Perreault JP, Schleiff E, Rodrigo I, Ferrando A, Lisón P. Citrus exocortis viroid causes ribosomal stress in tomato plants. Nucleic Acids Res 2019; 47:8649-8661. [PMID: 31392997 PMCID: PMC6895259 DOI: 10.1093/nar/gkz679] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 07/23/2019] [Accepted: 07/30/2019] [Indexed: 12/26/2022] Open
Abstract
Viroids are naked RNAs that do not code for any known protein and yet are able to infect plants causing severe diseases. Because of their RNA nature, many studies have focused on the involvement of viroids in RNA-mediated gene silencing as being their pathogenesis mechanism. Here, the alterations caused by the Citrus exocortis viroid (CEVd) on the tomato translation machinery were studied as a new aspect of viroid pathogenesis. The presence of viroids in the ribosomal fractions of infected tomato plants was detected. More precisely, CEVd and its derived viroid small RNAs were found to co-sediment with tomato ribosomes in vivo, and to provoke changes in the global polysome profiles, particularly in the 40S ribosomal subunit accumulation. Additionally, the viroid caused alterations in ribosome biogenesis in the infected tomato plants, affecting the 18S rRNA maturation process. A higher expression level of the ribosomal stress mediator NAC082 was also detected in the CEVd-infected tomato leaves. Both the alterations in the rRNA processing and the induction of NAC082 correlate with the degree of viroid symptomatology. Taken together, these results suggest that CEVd is responsible for defective ribosome biogenesis in tomato, thereby interfering with the translation machinery and, therefore, causing ribosomal stress.
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Affiliation(s)
- Patrick Cottilli
- Instituto de Biología Molecular y Celular de Plantas. Universitat Politècnica de València (UPV) - Consejo Superior de Investigaciones Científicas (CSIC). Ciudad Politécnica de la Innovación (CPI), Valencia 46022, Spain
| | - Borja Belda-Palazón
- Instituto de Biología Molecular y Celular de Plantas. Universitat Politècnica de València (UPV) - Consejo Superior de Investigaciones Científicas (CSIC). Ciudad Politécnica de la Innovación (CPI), Valencia 46022, Spain
| | - Charith Raj Adkar-Purushothama
- RNA Group, Département de Biochimie, Faculté de Médecine des Sciences de la Santé, Pavillon de Recherche Appliquée au Cancer, Université de Sherbrooke, Sherbrooke, Québec J1E 4K8, Canada
| | - Jean-Pierre Perreault
- RNA Group, Département de Biochimie, Faculté de Médecine des Sciences de la Santé, Pavillon de Recherche Appliquée au Cancer, Université de Sherbrooke, Sherbrooke, Québec J1E 4K8, Canada
| | - Enrico Schleiff
- Department of Biosciences, Molecular Cell Biology of Plants & Buchmann Institute for Molecular Life Science, Goethe University; Frankfurt Institute for Advanced Studies; Frankfurt/Main 60438, Germany
| | - Ismael Rodrigo
- Instituto de Biología Molecular y Celular de Plantas. Universitat Politècnica de València (UPV) - Consejo Superior de Investigaciones Científicas (CSIC). Ciudad Politécnica de la Innovación (CPI), Valencia 46022, Spain
| | - Alejandro Ferrando
- Instituto de Biología Molecular y Celular de Plantas. Universitat Politècnica de València (UPV) - Consejo Superior de Investigaciones Científicas (CSIC). Ciudad Politécnica de la Innovación (CPI), Valencia 46022, Spain
| | - Purificación Lisón
- Instituto de Biología Molecular y Celular de Plantas. Universitat Politècnica de València (UPV) - Consejo Superior de Investigaciones Científicas (CSIC). Ciudad Politécnica de la Innovación (CPI), Valencia 46022, Spain
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25
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Góra-Sochacka A, Więsyk A, Fogtman A, Lirski M, Zagórski-Ostoja W. Root Transcriptomic Analysis Reveals Global Changes Induced by Systemic Infection of Solanum lycopersicum with Mild and Severe Variants of Potato Spindle Tuber Viroid. Viruses 2019; 11:v11110992. [PMID: 31671783 PMCID: PMC6893655 DOI: 10.3390/v11110992] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/24/2019] [Accepted: 10/26/2019] [Indexed: 12/11/2022] Open
Abstract
Potato spindle tuber viroid (PSTVd) causes systemic infection in plant hosts. There are many studies on viroid-host plant interactions, but they have predominantly focused on the aboveground part of the plant. Here, we investigated transcriptomic profile changes in tomato roots systemically infected with mild or severe PSTVd variants using a combined microarray/RNA-seq approach. Analysis indicated differential expression of genes related to various Gene Ontology categories depending on the stage of infection and PSTVd variant. A majority of cell-wall-related genes were down-regulated at early infection stages, but at the late stage, the number of up-regulated genes increased significantly. Along with observed alterations of many lignin-related genes, performed lignin quantification indicated their disrupted level in PSTVd-infected roots. Altered expression of genes related to biosynthesis and signaling of auxin and cytokinin, which are crucial for lateral root development, was also identified. Comparison of both PSTVd infections showed that transcriptional changes induced by the severe variant were stronger than those caused by the mild variant, especially at the late infection stage. Taken together, we showed that similarly to aboveground plant parts, PSTVd infection in the underground tissues activates the plant immune response.
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Affiliation(s)
- Anna Góra-Sochacka
- Institute of Biochemistry and Biophysics Polish Academy of Sciences, Pawińskiego 5A, 02-106 Warsaw, Poland.
| | - Aneta Więsyk
- Institute of Biochemistry and Biophysics Polish Academy of Sciences, Pawińskiego 5A, 02-106 Warsaw, Poland.
| | - Anna Fogtman
- Institute of Biochemistry and Biophysics Polish Academy of Sciences, Pawińskiego 5A, 02-106 Warsaw, Poland.
| | - Maciej Lirski
- Institute of Biochemistry and Biophysics Polish Academy of Sciences, Pawińskiego 5A, 02-106 Warsaw, Poland.
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26
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Wang S, Han K, Peng J, Zhao J, Jiang L, Lu Y, Zheng H, Lin L, Chen J, Yan F. NbALD1 mediates resistance to turnip mosaic virus by regulating the accumulation of salicylic acid and the ethylene pathway in Nicotiana benthamiana. MOLECULAR PLANT PATHOLOGY 2019; 20:990-1004. [PMID: 31012537 PMCID: PMC6589722 DOI: 10.1111/mpp.12808] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
AGD2-LIKE DEFENCE RESPONSE PROTEIN 1 (ALD1) triggers plant defence against bacterial and fungal pathogens by regulating the salicylic acid (SA) pathway and an unknown SA-independent pathway. We now show that Nicotiana benthamiana ALD1 is involved in defence against a virus and that the ethylene pathway also participates in ALD1-mediated resistance. NbALD1 was up-regulated in plants infected with turnip mosaic virus (TuMV). Silencing of NbALD1 facilitated TuMV infection, while overexpression of NbALD1 or exogenous application of pipecolic acid (Pip), the downstream product of ALD1, enhanced resistance to TuMV. The SA content was lower in NbALD1-silenced plants and higher where NbALD1 was overexpressed or following Pip treatments. SA mediated resistance to TuMV and was required for NbALD1-mediated resistance. However, on NahG plants (in which SA cannot accumulate), Pip treatment still alleviated susceptibility to TuMV, further demonstrating the presence of an SA-independent resistance pathway. The ethylene precursor, 1-aminocyclopropanecarboxylic acid (ACC), accumulated in NbALD1-silenced plants but was reduced in plants overexpressing NbALD1 or treated with Pip. Silencing of ACS1, a key gene in the ethylene pathway, alleviated the susceptibility of NbALD1-silenced plants to TuMV, while exogenous application of ACC compromised the resistance of Pip-treated or NbALD1 transgenic plants. The results indicate that NbALD1 mediates resistance to TuMV by positively regulating the resistant SA pathway and negatively regulating the susceptible ethylene pathway.
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Affiliation(s)
- Shu Wang
- College of Agriculture and BiotechnologyZhejiang UniversityHangzhou310058China
- The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou310021China
- Institute of Plant VirologyNingbo UniversityNingbo315211China
| | - Kelei Han
- College of Plant ProtectionNanjing Agricultural UniversityNanjing210095China
| | - Jiejun Peng
- Institute of Plant VirologyNingbo UniversityNingbo315211China
| | - Jinping Zhao
- The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou310021China
| | - Liangliang Jiang
- College of Plant ProtectionNanjing Agricultural UniversityNanjing210095China
| | - Yuwen Lu
- Institute of Plant VirologyNingbo UniversityNingbo315211China
| | - Hongying Zheng
- Institute of Plant VirologyNingbo UniversityNingbo315211China
| | - Lin Lin
- Institute of Plant VirologyNingbo UniversityNingbo315211China
| | - Jianping Chen
- College of Agriculture and BiotechnologyZhejiang UniversityHangzhou310058China
- The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou310021China
- Institute of Plant VirologyNingbo UniversityNingbo315211China
| | - Fei Yan
- The State Key Laboratory Breeding Base for Sustainable Control of Pest and Disease, Key Laboratory of Biotechnology in Plant Protection of MOA of China and Zhejiang Province, Institute of Virology and BiotechnologyZhejiang Academy of Agricultural SciencesHangzhou310021China
- Institute of Plant VirologyNingbo UniversityNingbo315211China
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27
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Global Transcriptomic Analysis Reveals Insights into the Response of 'Etrog' Citron ( Citrus medica L.) to Citrus Exocortis Viroid Infection. Viruses 2019; 11:v11050453. [PMID: 31109003 PMCID: PMC6563217 DOI: 10.3390/v11050453] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 05/11/2019] [Accepted: 05/15/2019] [Indexed: 12/11/2022] Open
Abstract
Citrus exocortis viroid (CEVd) is the causal agent of citrus exocortis disease. We employed CEVd-infected ‘Etrog’ citron as a system to study the feedback regulation mechanism using transcriptome analysis in this study. Three months after CEVd infection, the transcriptome of fresh leaves was analyzed, and 1530 differentially expressed genes were detected. The replication of CEVd in citron induced upregulation of genes encoding key proteins that were involved in the RNA silencing pathway such as Dicer-like 2, RNA-dependent RNA polymerase 1, argonaute 2, argonaute 7, and silencing defective 3, as well as those genes encoding proteins that are related to basic defense responses. Many genes involved in secondary metabolite biosynthesis and chitinase activity were upregulated, whereas other genes related to cell wall and phytohormone signal transduction were downregulated. Moreover, genes encoding disease resistance proteins, pathogenicity-related proteins, and heat shock cognate 70 kDa proteins were also upregulated in response to CEVd infection. These results suggest that basic defense and RNA silencing mechanisms are activated by CEVd infection, and this information improves our understanding of the pathogenesis of viroids in woody plants.
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28
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Effect of Benzothiadiazole on the Metabolome of Tomato Plants Infected by Citrus Exocortis Viroid. Viruses 2019; 11:v11050437. [PMID: 31091764 PMCID: PMC6563216 DOI: 10.3390/v11050437] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 05/09/2019] [Accepted: 05/10/2019] [Indexed: 11/17/2022] Open
Abstract
Benzothiadiazole (BTH) is a functional analogue of the phytohormone salycilic acid (SA) involved in the plant immune response. NahG tomato plants are unable to accumulate SA, which makes them hypersusceptible to several pathogens. Treatments with BTH increase the resistance to bacterial, fungal, viroid, or viral infections. In this study, metabolic alterations in BTH-treated Money Maker and NahG tomato plants infected by citrus exocortis viroid (CEVd) were investigated by nuclear magnetic resonance spectroscopy. Using multivariate data analysis, we have identified defence metabolites induced after viroid infection and BTH-treatment. Glycosylated phenolic compounds include gentisic and ferulic acid accumulated in CEVd-infected tomato plants, as well as phenylalanine, tyrosine, aspartate, glutamate, and asparagine. Besides, an increase of γ-aminobutyric acid (GABA), glutamine, adenosine, and trigonelline, contributed to a clear discrimination between the metabolome of BTH-treated tomato leaves and their corresponding controls. Among them, GABA was the only metabolite significantly accumulated in both genotypes after the chemical treatment. In view of these results, the addition of GABA was performed on tomato plants infected by CEVd, and a reversion of the NahG hypersusceptibility to CEVd was observed, indicating that GABA could regulate the resistance to CEVd induced by BTH.
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Enebe MC, Babalola OO. The impact of microbes in the orchestration of plants' resistance to biotic stress: a disease management approach. Appl Microbiol Biotechnol 2019; 103:9-25. [PMID: 30315353 PMCID: PMC6311197 DOI: 10.1007/s00253-018-9433-3] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 10/03/2018] [Accepted: 10/03/2018] [Indexed: 12/12/2022]
Abstract
The struggle for survival is a natural and a continuous process. Microbes are struggling to survive by depending on plants for their nutrition while plants on the other hand are resisting the attack of microbes in order to survive. This interaction is a tug of war and the knowledge of microbe-plant relationship will enable farmers/agriculturists improve crop health, yield, sustain regular food supply, and minimize the use of agrochemicals such as fungicides and pesticides in the fight against plant pathogens. Although, these chemicals are capable of inhibiting pathogens, they also constitute an environmental hazard. However, certain microbes known as plant growth-promoting microbes (PGPM) aid in the sensitization and priming of the plant immune defense arsenal for it to conquer invading pathogens. PGPM perform this function by the production of elicitors such as volatile organic compounds, antimicrobials, and/or through competition. These elicitors are capable of inducing the expression of pathogenesis-related genes in plants through induced systemic resistance or acquired systemic resistance channels. This review discusses the current findings on the influence and participation of microbes in plants' resistance to biotic stress and to suggest integrative approach as a better practice in disease management and control for the achievement of sustainable environment, agriculture, and increasing food production.
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Affiliation(s)
- Matthew Chekwube Enebe
- Food Security and Safety Niche Area, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho, 2735, South Africa
| | - Olubukola Oluranti Babalola
- Food Security and Safety Niche Area, Faculty of Natural and Agricultural Sciences, North-West University, Private Bag X2046, Mmabatho, 2735, South Africa.
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Islam W, Naveed H, Zaynab M, Huang Z, Chen HYH. Plant defense against virus diseases; growth hormones in highlights. PLANT SIGNALING & BEHAVIOR 2019; 14:1596719. [PMID: 30957658 PMCID: PMC6546145 DOI: 10.1080/15592324.2019.1596719] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 03/12/2019] [Indexed: 05/20/2023]
Abstract
Phytohormones are critical in various aspects of plant biology such as growth regulations and defense strategies against pathogens. Plant-virus interactions retard plant growth through rapid alterations in phytohormones and their signaling pathways. Recent research findings show evidence of how viruses impact upon modulation of various phytohormones affecting plant growth regulations. The opinion is getting stronger that virus-mediated phytohormone disruption and alteration weaken plant defense strategies through enhanced replication and systemic spread of viral particles. These hormones regulate plant-virus interactions in various ways that may involve antagonism and cross talk to modulate small RNA (sRNA) systems. The article aims to highlight the recent research findings elaborating the impact of viruses upon manipulation of phytohormones and virus biology.
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Affiliation(s)
- Waqar Islam
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, China
- Institute of Geography, Fujian Normal University, Fuzhou, China
| | - Hassan Naveed
- Institute of Entomology, College of Life Sciences, Nankai University, Tianjin, China
| | - Madiha Zaynab
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zhiqun Huang
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, China
- Institute of Geography, Fujian Normal University, Fuzhou, China
- Zhiqun Huang Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou 350007, China
| | - Han Y. H. Chen
- Key Laboratory for Humid Subtropical Eco-Geographical Processes of the Ministry of Education, Fujian Normal University, Fuzhou, China
- Institute of Geography, Fujian Normal University, Fuzhou, China
- Faculty of Natural Resources Management, Lakehead University, Ontario, Canada
- CONTACT Han Y. H. Chen Faculty of Natural Resources Management, Lakehead University, Ontario Canada
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Li Z, Zhao C, Zhao X, Xia Y, Sun X, Xie W, Ye Y, Lu X, Xu G. Deep Annotation of Hydroxycinnamic Acid Amides in Plants Based on Ultra-High-Performance Liquid Chromatography-High-Resolution Mass Spectrometry and Its In Silico Database. Anal Chem 2018; 90:14321-14330. [PMID: 30453737 DOI: 10.1021/acs.analchem.8b03654] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Hydroxycinnamic acid amides (HCAAs), diversely distributed secondary metabolites in plants, play essential roles in plant growth and developmental processes. Most current approaches can be used to analyze a few known HCAAs in a given plant. A novel method for comprehensive detection of plant HCAAs is urgently needed. In this study, a deep annotation method of HCAAs was proposed on the basis of ultra-high-performance liquid chromatography-high-resolution mass spectrometry (UHPLC-HRMS) and its in silico database of HCAAs. To construct an in silico UHPLC-HRMS HCAAs database, a total of 846 HCAAs were generated from the most common phenolic acid and polyamine/aromatic monoamine substrates according to possible biosynthesis reactions, which represent the structures of plant-specialized HCAAs. The characteristic MS/MS fragmentation patterns of HCAAs were extracted from reference mixtures. Four quantitative structure-retention relationship (QSRR) models were developed to predict retention times of mono-trans-HCAAs (aromatic amines conjugates), mono-trans-HCAAs (aliphatic amines conjugates), bis-HCAAs, and tris-HCAAs. The developed method was applied for identifying HCAAs in seeds (maize, wheat, and rice), roots (rice), and leaves (rice and tobacco). A total of 79 HCAAs were detected: 42 of them were identified in these plants for the first time, and 20 of them have never been reported to exist in plants. The results showed that the developed method can be used to identify HCAAs in a plant without prior knowledge of HCAA distributions. To the best of our knowledge, it is the first UHPLC-HRMS database developed for effective deep annotation of HCAAs from nontargeted UHPLC-HRMS data. It is useful for the identification of novel HCAAs in plants.
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Affiliation(s)
- Zaifang Li
- CAS Key Laboratory of Separation Science for Analytical Chemistry , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Chunxia Zhao
- CAS Key Laboratory of Separation Science for Analytical Chemistry , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China
| | - Xinjie Zhao
- CAS Key Laboratory of Separation Science for Analytical Chemistry , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China
| | - Yueyi Xia
- CAS Key Laboratory of Separation Science for Analytical Chemistry , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Xiaoshan Sun
- CAS Key Laboratory of Separation Science for Analytical Chemistry , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Wenyan Xie
- Shanghai Tobacco Group Co. Ltd, Technology Center , Shanghai 200082 , China
| | - Yaorui Ye
- CAS Key Laboratory of Separation Science for Analytical Chemistry , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China
| | - Xin Lu
- CAS Key Laboratory of Separation Science for Analytical Chemistry , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China
| | - Guowang Xu
- CAS Key Laboratory of Separation Science for Analytical Chemistry , Dalian Institute of Chemical Physics, Chinese Academy of Sciences , Dalian 116023 , China
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Makarova S, Makhotenko A, Spechenkova N, Love AJ, Kalinina NO, Taliansky M. Interactive Responses of Potato ( Solanum tuberosum L.) Plants to Heat Stress and Infection With Potato Virus Y. Front Microbiol 2018; 9:2582. [PMID: 30425697 PMCID: PMC6218853 DOI: 10.3389/fmicb.2018.02582] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 10/10/2018] [Indexed: 11/13/2022] Open
Abstract
Potato (Solanum tuberosum) plants are exposed to diverse environmental stresses, which may modulate plant-pathogen interactions, and potentially cause further decreases in crop productivity. To provide new insights into interactive molecular responses to heat stress combined with virus infection in potato, we analyzed expression of genes encoding pathogenesis-related (PR) proteins [markers of salicylic acid (SA)-mediated plant defense] and heat shock proteins (HSPs), in two potato cultivars that differ in tolerance to elevated temperatures and in susceptibility to potato virus Y (PVY). In plants of cv. Chicago (thermosensitive and PVY-susceptible), increased temperature reduced PR gene expression and this correlated with enhancement of PVY infection (virus accumulation and symptom production). In contrast, with cv. Gala (thermotolerant and PVY resistant), which displayed a greater increase in PR gene expression in response to PVY infection, temperature affected neither PR transcript levels nor virus accumulation. HSP genes were induced by elevated temperature in both cultivars but to higher levels in the thermotolerant (Gala) cultivar. PVY infection did not alter expression of HSP genes in the Gala cultivar (possibly because of the low level of virus accumulation) but did induce expression of HSP70 and HSP90 in the susceptible cultivar (Chicago). These findings suggest that responses to heat stress and PVY infection in potato have some common underlying mechanisms, which may be integrated in a specific consolidated network that controls plant sensitivity to multiple stresses in a cultivar-specific manner. We also found that the SA pre-treatment subverted the sensitive combined (heat and PVY) stress phenotype in Chicago, implicating SA as a key component of such a regulatory network.
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Affiliation(s)
- Svetlana Makarova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Antonida Makhotenko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Nadezhda Spechenkova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
| | | | - Natalia O. Kalinina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
- A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Michael Taliansky
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
- The James Hutton Institute, Dundee, United Kingdom
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Thibaut O, Claude B. Innate Immunity Activation and RNAi Interplay in Citrus Exocortis Viroid-Tomato Pathosystem. Viruses 2018; 10:E587. [PMID: 30373191 PMCID: PMC6266551 DOI: 10.3390/v10110587] [Citation(s) in RCA: 20] [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: 08/25/2018] [Revised: 10/18/2018] [Accepted: 10/24/2018] [Indexed: 12/21/2022] Open
Abstract
Although viroids are the smallest and simplest plant pathogens known, the molecular mechanisms underlying their pathogenesis remain unclear. To unravel these mechanisms, a dual approach was implemented consisting of in silico identification of potential tomato silencing targets of pospiviroids, and the experimental validation of these targets through the sequencing of small RNAs and RNA ends extracted from tomatoes infected with a severe isolate of Citrus exocortis viroid (CEVd). The generated RNA ends were also used to monitor the differentially-expressed genes. These analyses showed that when CEVd symptoms are well established: (i) CEVd are degraded by at least three Dicer-like (DCL) proteins and possibly by RNA-induced silencing complex (RISC), (ii) five different mRNAs are partially degraded through post-transcriptional gene silencing (PTGS), including argonaute 2a, which is further degraded in phasiRNAs, (iii) Dicer-like 2b and 2d are both upregulated and degraded in phasiRNAs, and (iv) CEVd infection induced a significant shift in gene expression allowing to explain the usual symptoms of pospiviroids on tomato and to demonstrate the constant activation of host innate immunity and systemic acquired resistance (SAR) by these pathogenic RNAs. Finally, based on in silico analysis, potential immunity receptor candidates of viroid-derived RNAs are suggested.
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Affiliation(s)
- Olivier Thibaut
- Life Sciences Department, Walloon agricultural research Centre, Rue de Liroux 4, 5030 Gembloux, Belgium.
- UCLouvain, Earth&Life Institute, Croix du Sud 2bte L7.05.03, 1348 Louvain-la-Neuve, Belgium.
| | - Bragard Claude
- UCLouvain, Earth&Life Institute, Croix du Sud 2bte L7.05.03, 1348 Louvain-la-Neuve, Belgium.
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Genome-Wide Transcriptomic Analysis Reveals Insights into the Response to Citrus bark cracking viroid (CBCVd) in Hop ( Humulus lupulus L.). Viruses 2018; 10:v10100570. [PMID: 30340328 PMCID: PMC6212812 DOI: 10.3390/v10100570] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 10/12/2018] [Accepted: 10/16/2018] [Indexed: 12/17/2022] Open
Abstract
Viroids are smallest known pathogen that consist of non-capsidated, single-stranded non-coding RNA replicons and they exploits host factors for their replication and propagation. The severe stunting disease caused by Citrus bark cracking viroid (CBCVd) is a serious threat, which spreads rapidly within hop gardens. In this study, we employed comprehensive transcriptome analyses to dissect host-viroid interactions and identify gene expression changes that are associated with disease development in hop. Our analysis revealed that CBCVd-infection resulted in the massive modulation of activity of over 2000 genes. Expression of genes associated with plant immune responses (protein kinase and mitogen-activated protein kinase), hypersensitive responses, phytohormone signaling pathways, photosynthesis, pigment metabolism, protein metabolism, sugar metabolism, and modification, and others were altered, which could be attributed to systemic symptom development upon CBCVd-infection in hop. In addition, genes encoding RNA-dependent RNA polymerase, pathogenesis-related protein, chitinase, as well as those related to basal defense responses were up-regulated. The expression levels of several genes identified from RNA sequencing analysis were confirmed by qRT-PCR. Our systematic comprehensive CBCVd-responsive transcriptome analysis provides a better understanding and insights into complex viroid-hop plant interaction. This information will assist further in the development of future measures for the prevention of CBCVd spread in hop fields.
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Sahu GK, Sabat SC. Salicylic acid modulates isoenzyme pattern of enzymatic antioxidants in wheat. ACTA ACUST UNITED AC 2018. [DOI: 10.1007/s40502-018-0384-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Beris D, Theologidis I, Skandalis N, Vassilakos N. Bacillus amyloliquefaciens strain MBI600 induces salicylic acid dependent resistance in tomato plants against Tomato spotted wilt virus and Potato virus Y. Sci Rep 2018; 8:10320. [PMID: 29985434 PMCID: PMC6037670 DOI: 10.1038/s41598-018-28677-3] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 06/19/2018] [Indexed: 11/23/2022] Open
Abstract
Plant growth promoting rhizobacteria have been proposed as effective biocontrol agents against several fungal and bacterial plant pathogens. However, there is limited knowledge regarding their effect against viruses. In this study, Bacillus amyloliquefaciens strain MBI600 (MBI600), active ingredient of the biological fungicide Serifel® (BASF SE), was tested for its antiviral action in tomato plants. Drench, foliar or soil amendment applications of MBI600 reduced up to 80% the incidence of Tomato spotted wilt virus under two different sets of environmental conditions. In addition, drench application of MBI600 delayed Potato virus Y systemic accumulation. Transcriptional analysis of a range of genes associated with salicylic acid (SA)- or jasmonic acid - related defense, priming or basal defense against viruses, revealed the induction of the SA signaling pathway in tomato after MBI600 treatment, and discrete gene expression patterns in plant response to TSWV and PVY infection.
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Affiliation(s)
- Despoina Beris
- Foundation for Research and Technology, Institute of Molecular Biology and Biotechnology, Heraklion/Crete, GR-71110, Greece
| | - Ioannis Theologidis
- Foundation for Research and Technology, Institute of Molecular Biology and Biotechnology, Heraklion/Crete, GR-71110, Greece
| | - Nicholas Skandalis
- Foundation for Research and Technology, Institute of Molecular Biology and Biotechnology, Heraklion/Crete, GR-71110, Greece
- Keck School of Medicine, University of South California, 2020 ZONAL AVE. Off Campus, Los Angeles, USA
| | - Nikon Vassilakos
- Foundation for Research and Technology, Institute of Molecular Biology and Biotechnology, Heraklion/Crete, GR-71110, Greece.
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Xia C, Li S, Hou W, Fan Z, Xiao H, Lu M, Sano T, Zhang Z. Global Transcriptomic Changes Induced by Infection of Cucumber ( Cucumis sativus L.) with Mild and Severe Variants of Hop Stunt Viroid. Front Microbiol 2017; 8:2427. [PMID: 29312160 PMCID: PMC5733102 DOI: 10.3389/fmicb.2017.02427] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Accepted: 11/23/2017] [Indexed: 11/13/2022] Open
Abstract
Fifteen years after transfer to hops, hop stunt viroid-grapevine (HSVd-g) was replaced by HSVd-hop (HSVd-h), a sequence variant that contains changes at five different positions. HSVd-g54 is a laboratory mutant derived from HSVd-g that differs from its progenitor by a single G to A substitution at position 54. While infection by HSVd-h induces only mild stunting in cucumber (Cucumis sativus L.), HSVd-g54 induces much more severe symptoms in this indicator host. Comparison of transcriptome profiles of cucumber infected with HSVd-h or HSVd-g54 with those of mock-inoculated controls obtained by whole transcriptome shotgun sequencing revealed that many genes related to photosynthesis were down-regulated following infection. In contrast, genes encoding RNA-dependent RNA polymerase 1 (CsRDR1), especially CsRDR1c1 and CsRDR1c2, as well as those related to basal defense responses were up-regulated. Expression of genes associated with phytohormone signaling pathways were also altered, indicating that viroid infection initiates a complex array of changes in the host transcriptome. HSVd-g54 induced an earlier and stronger response than HSVd-h, and further examination of these differences will contribute to a better understanding of the mechanisms that determine viroid pathogenicity.
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Affiliation(s)
- Changjian Xia
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
- State Key Laboratory for Agro-Biotechnology, Key Laboratory of Pest Monitoring and Green Management, Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing, China
| | - Shifang Li
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Wanying Hou
- Key Laboratory of Tobacco Pest Monitoring Controlling and Integrated Management, State Tobacco Monopoly Bureau, Institue of Tobacco Research, Chinese Academy of Agricultural Sciences, Qingdao, China
| | - Zaifeng Fan
- State Key Laboratory for Agro-Biotechnology, Key Laboratory of Pest Monitoring and Green Management, Department of Plant Pathology, College of Plant Protection, China Agricultural University, Beijing, China
| | - Hong Xiao
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Meiguang Lu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
| | - Teruo Sano
- Faculty of Agriculture and Life Science, Hirosaki University, Hirosaki, Japan
| | - Zhixiang Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China
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Alazem M, Lin NS. Antiviral Roles of Abscisic Acid in Plants. FRONTIERS IN PLANT SCIENCE 2017; 8:1760. [PMID: 29075279 PMCID: PMC5641568 DOI: 10.3389/fpls.2017.01760] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 09/26/2017] [Indexed: 05/18/2023]
Abstract
Abscisic acid (ABA) is a key hormone involved in tuning responses to several abiotic stresses and also has remarkable impacts on plant defense against various pathogens. The roles of ABA in plant defense against bacteria and fungi are multifaceted, inducing or reducing defense responses depending on its time of action. However, ABA induces different resistance mechanisms to viruses regardless of the induction time. Recent studies have linked ABA to the antiviral silencing pathway, which interferes with virus accumulation, and the micro RNA (miRNA) pathway through which ABA affects the maturation and stability of miRNAs. ABA also induces callose deposition at plasmodesmata, a mechanism that limits viral cell-to-cell movement. Bamboo mosaic virus (BaMV) is a member of the potexvirus group and is one of the most studied viruses in terms of the effects of ABA on its accumulation and resistance. In this review, we summarize how ABA interferes with the accumulation and movement of BaMV and other viruses. We also highlight aspects of ABA that may have an effect on other types of resistance and that require further investigation.
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