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Pastor-Fernández J, Sanmartín N, Manresa M, Cassan C, Pétriacq P, Gibon Y, Gamir J, Romero Rodriguez B, Castillo AG, Cerezo M, Flors V, Sánchez-Bel P. Deciphering molecular events behind Systemin-induced resistance against Botrytis cinerea in tomato plants. J Exp Bot 2024:erae146. [PMID: 38581374 DOI: 10.1093/jxb/erae146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Indexed: 04/08/2024]
Abstract
Plant defense peptides are paramount endogenous danger signals secreted after a challenge intensifying the plant immune response. The peptidic hormone Systemin (Sys) was shown to participate in resistance in several plant-pathosystems, although the mechanisms behind Sys-IR when exogenously applied remain elusive. We performed proteomic, metabolomic and enzymatic studies to decipher the Sys-induced changes in tomato plants either in the absence or the presence of Botrytis cinerea infection. Sys-treatments triggered direct proteomic rearrangement mostly involved in carbon metabolism and photosynthesis. However, the final induction of defense proteins required concurrent challenge, triggering priming of pathogen-targeted proteins. Conversely, at the metabolomic level, Sys-treated plants showed an alternative behaviour following a general priming profile. Out of the primed metabolites, the flavonoids rutin and isorhamnetin and two alkaloids correlated with the proteins 4-coumarate-CoA-ligase and chalcone-flavanone-isomerase triggered by Sys treatment. In addition, the proteomic and enzymatic analyses revealed that Sys conditioned the primary metabolism towards the production of available sugars that could be fuelling the priming of callose deposition in Sys-treated plants, furthermore PR1 appeared as as key element in Sys-induced resistance. Collectively, the direct induction of proteins and priming of specific secondary metabolites in Sys-treated plants indicated that posttranslational protein regulation is an additional component of priming against necrotrophic fungi.
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Affiliation(s)
- Julia Pastor-Fernández
- Metabolic Integration and Cell Signaling Laboratory, Biochemistry and Molecular Biology Section. Department of Biology, Biochemistry and Natural Sciences,, Universitat Jaume I. Avd Vicente Sos Baynat s/n 12071 Castellón, Spain
| | - Neus Sanmartín
- Metabolic Integration and Cell Signaling Laboratory, Biochemistry and Molecular Biology Section. Department of Biology, Biochemistry and Natural Sciences,, Universitat Jaume I. Avd Vicente Sos Baynat s/n 12071 Castellón, Spain
| | - Maria Manresa
- Metabolic Integration and Cell Signaling Laboratory, Biochemistry and Molecular Biology Section. Department of Biology, Biochemistry and Natural Sciences,, Universitat Jaume I. Avd Vicente Sos Baynat s/n 12071 Castellón, Spain
| | - Cédric Cassan
- Univ. Bordeaux, INRAE, UMR1332 BFP, 33882 Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140 Villenave d'Ornon, France
| | - Pierre Pétriacq
- Univ. Bordeaux, INRAE, UMR1332 BFP, 33882 Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140 Villenave d'Ornon, France
| | - Yves Gibon
- Univ. Bordeaux, INRAE, UMR1332 BFP, 33882 Villenave d'Ornon, France
- Bordeaux Metabolome, MetaboHUB, PHENOME-EMPHASIS, 33140 Villenave d'Ornon, France
| | - Jordi Gamir
- Metabolic Integration and Cell Signaling Laboratory, Biochemistry and Molecular Biology Section. Department of Biology, Biochemistry and Natural Sciences,, Universitat Jaume I. Avd Vicente Sos Baynat s/n 12071 Castellón, Spain
| | - Beatriz Romero Rodriguez
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM "La Mayora"), Universidad de Málaga-Consejo Superior de Investigaciones Cientificas (UMA-CSIC), Campus Teatinos, 29010 Málaga, Spain
| | - Araceli G Castillo
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM "La Mayora"), Universidad de Málaga-Consejo Superior de Investigaciones Cientificas (UMA-CSIC), Campus Teatinos, 29010 Málaga, Spain
| | - Miguel Cerezo
- Metabolic Integration and Cell Signaling Laboratory, Biochemistry and Molecular Biology Section. Department of Biology, Biochemistry and Natural Sciences,, Universitat Jaume I. Avd Vicente Sos Baynat s/n 12071 Castellón, Spain
| | - Victor Flors
- Metabolic Integration and Cell Signaling Laboratory, Biochemistry and Molecular Biology Section. Department of Biology, Biochemistry and Natural Sciences,, Universitat Jaume I. Avd Vicente Sos Baynat s/n 12071 Castellón, Spain
| | - Paloma Sánchez-Bel
- Metabolic Integration and Cell Signaling Laboratory, Biochemistry and Molecular Biology Section. Department of Biology, Biochemistry and Natural Sciences,, Universitat Jaume I. Avd Vicente Sos Baynat s/n 12071 Castellón, Spain
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2
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Romero-Rodríguez B, Petek M, Jiao C, Križnik M, Zagorščak M, Fei Z, Bejarano ER, Gruden K, Castillo AG. Transcriptional and epigenetic changes during tomato yellow leaf curl virus infection in tomato. BMC Plant Biol 2023; 23:651. [PMID: 38110861 PMCID: PMC10726652 DOI: 10.1186/s12870-023-04534-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 10/17/2023] [Indexed: 12/20/2023]
Abstract
BACKGROUND Geminiviruses are DNA plant viruses that cause highly damaging diseases affecting crops worldwide. During the infection, geminiviruses hijack cellular processes, suppress plant defenses, and cause a massive reprogramming of the infected cells leading to major changes in the whole plant homeostasis. The advances in sequencing technologies allow the simultaneous analysis of multiple aspects of viral infection at a large scale, generating new insights into the molecular mechanisms underlying plant-virus interactions. However, an integrative study of the changes in the host transcriptome, small RNA profile and methylome during a geminivirus infection has not been performed yet. Using a time-scale approach, we aim to decipher the gene regulation in tomato in response to the infection with the geminivirus, tomato yellow leaf curl virus (TYLCV). RESULTS We showed that tomato undergoes substantial transcriptional and post-transcriptional changes upon TYLCV infection and identified the main altered regulatory pathways. Interestingly, although the principal plant defense-related processes, gene silencing and the immune response were induced, this cannot prevent the establishment of the infection. Moreover, we identified extra- and intracellular immune receptors as targets for the deregulated microRNAs (miRNAs) and established a network for those that also produced phased secondary small interfering RNAs (phasiRNAs). On the other hand, there were no significant genome-wide changes in tomato methylome at 14 days post infection, the time point at which the symptoms were general, and the amount of viral DNA had reached its maximum level, but we were able to identify differentially methylated regions that could be involved in the transcriptional regulation of some of the differentially expressed genes. CONCLUSION We have conducted a comprehensive and reliable study on the changes at transcriptional, post-transcriptional and epigenetic levels in tomato throughout TYLCV infection. The generated genomic information is substantial for understanding the genetic, molecular and physiological changes caused by TYLCV infection in tomato.
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Affiliation(s)
- Beatriz Romero-Rodríguez
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM "La Mayora"), Universidad de Málaga-Consejo Superior de Investigaciones Científicas (UMA-CSIC), Boulevard Louis Pasteur, 49, Málaga, 29010, Spain
| | - Marko Petek
- Department of Biotechnology and Systems Biology, National Institute of Biology, Večna Pot 111, 1000, Ljubljana, Slovenia
| | - Chen Jiao
- Boyce Thompson Institute, Cornell University, Ithaca, NY, USA
- The Key Lab of Molecular Biology of Crop Pathogens and Insects of Ministry of Agriculture, The Key Laboratory of Biology of Crop Pathogens and Insects of Zhejiang Province, Institute of Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Maja Križnik
- Department of Biotechnology and Systems Biology, National Institute of Biology, Večna Pot 111, 1000, Ljubljana, Slovenia
| | - Maja Zagorščak
- Department of Biotechnology and Systems Biology, National Institute of Biology, Večna Pot 111, 1000, Ljubljana, Slovenia
| | - Zhangjun Fei
- Boyce Thompson Institute, Cornell University, Ithaca, NY, USA
| | - Eduardo R Bejarano
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM "La Mayora"), Universidad de Málaga-Consejo Superior de Investigaciones Científicas (UMA-CSIC), Boulevard Louis Pasteur, 49, Málaga, 29010, Spain
| | - Kristina Gruden
- Department of Biotechnology and Systems Biology, National Institute of Biology, Večna Pot 111, 1000, Ljubljana, Slovenia
| | - Araceli G Castillo
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM "La Mayora"), Universidad de Málaga-Consejo Superior de Investigaciones Científicas (UMA-CSIC), Boulevard Louis Pasteur, 49, Málaga, 29010, Spain.
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3
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Rosas-Diaz T, Cana-Quijada P, Wu M, Hui D, Fernandez-Barbero G, Macho AP, Solano R, Castillo AG, Wang XW, Lozano-Duran R, Bejarano ER. The transcriptional regulator JAZ8 interacts with the C2 protein from geminiviruses and limits the geminiviral infection in Arabidopsis. J Integr Plant Biol 2023. [PMID: 36946519 DOI: 10.1111/jipb.13482] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 03/17/2023] [Indexed: 05/06/2023]
Abstract
Jasmonates (JAs) are phytohormones that finely regulate critical biological processes, including plant development and defense. JASMONATE ZIM-DOMAIN (JAZ) proteins are crucial transcriptional regulators that keep JA-responsive genes in a repressed state. In the presence of JA-Ile, JAZ repressors are ubiquitinated and targeted for degradation by the ubiquitin/proteasome system, allowing the activation of downstream transcription factors and, consequently, the induction of JA-responsive genes. A growing body of evidence has shown that JA signaling is crucial in defending against plant viruses and their insect vectors. Here, we describe the interaction of C2 proteins from two tomato-infecting geminiviruses from the genus Begomovirus, tomato yellow leaf curl virus (TYLCV) and tomato yellow curl Sardinia virus (TYLCSaV), with the transcriptional repressor JAZ8 from Arabidopsis thaliana and its closest orthologue in tomato, SlJAZ9. Both JAZ and C2 proteins colocalize in the nucleus, forming discrete nuclear speckles. Overexpression of JAZ8 did not lead to altered responses to TYLCV infection in Arabidopsis; however, knock-down of JAZ8 favors geminiviral infection. Low levels of JAZ8 likely affect the viral infection specifically, since JAZ8-silenced plants neither display obvious developmental phenotypes nor present differences in their interaction with the viral insect vector. In summary, our results show that the geminivirus-encoded C2 interacts with JAZ8 in the nucleus, and suggest that this plant protein exerts an anti-geminiviral effect.
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Affiliation(s)
- Tabata Rosas-Diaz
- Departamento de Biología Celular, Genética y Fisiología, Facultad de Ciencias, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Universidad de Málaga, Málaga, Spain
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 201602, China
| | - Pepe Cana-Quijada
- Departamento de Biología Celular, Genética y Fisiología, Facultad de Ciencias, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Universidad de Málaga, Málaga, Spain
| | - Mengshi Wu
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 201602, China
| | - Du Hui
- Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Gemma Fernandez-Barbero
- Departamento de Genética Molecular de Plantas, Centro Nacional de Biotecnología-Consejo Superior de Investigaciones Científicas, Madrid, 28049, Spain
| | - Alberto P Macho
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 201602, China
| | - Roberto Solano
- Departamento de Genética Molecular de Plantas, Centro Nacional de Biotecnología-Consejo Superior de Investigaciones Científicas, Madrid, 28049, Spain
| | - Araceli G Castillo
- Departamento de Biología Celular, Genética y Fisiología, Facultad de Ciencias, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Universidad de Málaga, Málaga, Spain
| | - Xiao-Wei Wang
- Institute of Insect Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Rosa Lozano-Duran
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 201602, China
- Department of Plant Biochemistry, Centre for Plant Molecular Biology, Eberhard Karls University, Tübingen, D-72076, Germany
| | - Eduardo R Bejarano
- Departamento de Biología Celular, Genética y Fisiología, Facultad de Ciencias, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Universidad de Málaga, Málaga, Spain
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4
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Bojórquez-Orozco AM, Arce-Leal ÁP, Montes RAC, Santos-Cervantes ME, Cruz-Mendívil A, Méndez-Lozano J, Castillo AG, Rodríguez-Negrete EA, Leyva-López NE. Differential Expression of miRNAs Involved in Response to Candidatus Liberibacter asiaticus Infection in Mexican Lime at Early and Late Stages of Huanglongbing Disease. Plants (Basel) 2023; 12:1039. [PMID: 36903899 PMCID: PMC10005081 DOI: 10.3390/plants12051039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 02/13/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
Huanglongbing (HLB) is one of the most destructive diseases threatening citriculture worldwide. This disease has been associated with α-proteobacteria species, namely Candidatus Liberibacter. Due to the unculturable nature of the causal agent, it has been difficult to mitigate the disease, and nowadays a cure is not available. MicroRNAs (miRNAs) are key regulators of gene expression, playing an essential role in abiotic and biotic stress in plants including antibacterial responses. However, knowledge derived from non-model systems including Candidatus Liberibacter asiaticus (CLas)-citrus pathosystem remains largely unknown. In this study, small RNA profiles from Mexican lime (Citrus aurantifolia) plants infected with CLas at asymptomatic and symptomatic stages were generated by sRNA-Seq, and miRNAs were obtained with ShortStack software. A total of 46 miRNAs, including 29 known miRNAs and 17 novel miRNAs, were identified in Mexican lime. Among them, six miRNAs were deregulated in the asymptomatic stage, highlighting the up regulation of two new miRNAs. Meanwhile, eight miRNAs were differentially expressed in the symptomatic stage of the disease. The target genes of miRNAs were related to protein modification, transcription factors, and enzyme-coding genes. Our results provide new insights into miRNA-mediated regulation in C. aurantifolia in response to CLas infection. This information will be useful to understand molecular mechanisms behind the defense and pathogenesis of HLB.
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Affiliation(s)
- Ana Marlenne Bojórquez-Orozco
- Instituto Politécnico Nacional, CIIDIR Unidad Sinaloa, Departamento de Biotecnología Agrícola, Guasave 81101, Sinaloa, Mexico
| | - Ángela Paulina Arce-Leal
- Instituto Politécnico Nacional, CIIDIR Unidad Sinaloa, Departamento de Biotecnología Agrícola, Guasave 81101, Sinaloa, Mexico
| | - Ricardo A. Chávez Montes
- Institute of Genomics for Crop Abiotic Stress Tolerance, Texas Tech University, Lubbock, TX 79409, USA
| | - María Elena Santos-Cervantes
- Instituto Politécnico Nacional, CIIDIR Unidad Sinaloa, Departamento de Biotecnología Agrícola, Guasave 81101, Sinaloa, Mexico
| | - Abraham Cruz-Mendívil
- CONACYT—Instituto Politécnico Nacional, CIIDIR Unidad Sinaloa, Departamento de Biotecnología Agrícola, Guasave 81101, Sinaloa, Mexico
| | - Jesús Méndez-Lozano
- Instituto Politécnico Nacional, CIIDIR Unidad Sinaloa, Departamento de Biotecnología Agrícola, Guasave 81101, Sinaloa, Mexico
| | - Araceli G. Castillo
- Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM), Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Área de Genética, Facultad de Ciencias, E-29071 Málaga, Spain
| | - Edgar A. Rodríguez-Negrete
- Instituto Politécnico Nacional, CIIDIR Unidad Sinaloa, Departamento de Biotecnología Agrícola, Guasave 81101, Sinaloa, Mexico
| | - Norma Elena Leyva-López
- Instituto Politécnico Nacional, CIIDIR Unidad Sinaloa, Departamento de Biotecnología Agrícola, Guasave 81101, Sinaloa, Mexico
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5
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Fortes IM, Pérez-Padilla V, Romero-Rodríguez B, Fernández-Muñoz R, Moyano C, Castillo AG, De León L, Moriones E. Begomovirus Tomato Leaf Curl New Delhi Virus Is Seedborne but Not Seed Transmitted in Melon. Plant Dis 2023; 107:473-479. [PMID: 35771117 DOI: 10.1094/pdis-09-21-1930-re] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Seed transmission can be of considerable relevance to the dissemination of plant viruses in nature and for their prevalence and perpetuation. Long-distance spread of isolates of the begomovirus species Tomato leaf curl New Delhi virus (genus Begomovirus, family Geminiviridae) has recently occurred from Asia to the Middle East and the Mediterranean Basin. Here, we investigated the possible transmission by melon (Cucumis melo L.) seeds of a tomato leaf curl New Delhi virus (ToLCNDV) isolate of the "Spain" strain widely distributed in the Mediterranean area as an alternative mechanism for long-distance spread. PCR amplification detection of ToLCNDV in floral parts and mature seeds of melon plants reveals that this virus is seedborne. "Seedborne" is defined as the ability of a virus to be carried through seeds, which does not necessarily lead to transmission to the next generation. Treatment with a chemical disinfectant significantly reduced the detectable virus associated with melon seeds, suggesting ToLCNDV contamination of the external portion of the seed coat. Also, when the internal fraction of the mature seed (seed cotyledons + embryo) was analyzed by quantitative PCR amplification, ToLCNDV was detectable at low levels, suggesting the potential for viral contamination or infection of the internal portions of seed. However, grow-out studies conducted with melon progeny plants germinated from mature seeds collected from ToLCNDV-infected plants and evaluated at early (1-leaf) or at late (20-leaf) growth stages did not support the transmission of ToLCNDV from seeds to offspring.
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Affiliation(s)
- Isabel M Fortes
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM), Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Estación Experimental "La Mayora", E-29750 Algarrobo-Costa, Málaga, Spain
| | - Verónica Pérez-Padilla
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Ctra. de La Coruña, km 7.5, E-28040 Madrid, Spain
| | - Beatriz Romero-Rodríguez
- IHSM, Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Área de Genética, Facultad de Ciencias, Universidad de Málaga, E-29071, Málaga, Spain
| | - Rafael Fernández-Muñoz
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM), Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Estación Experimental "La Mayora", E-29750 Algarrobo-Costa, Málaga, Spain
| | - Cristina Moyano
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Ctra. de La Coruña, km 7.5, E-28040 Madrid, Spain
| | - Araceli G Castillo
- IHSM, Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Área de Genética, Facultad de Ciencias, Universidad de Málaga, E-29071, Málaga, Spain
| | - Leandro De León
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Ctra. de La Coruña, km 7.5, E-28040 Madrid, Spain
| | - Enrique Moriones
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM), Universidad de Málaga-Consejo Superior de Investigaciones Científicas, Estación Experimental "La Mayora", E-29750 Algarrobo-Costa, Málaga, Spain
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6
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Bahari A, Castillo AG, Safaie N, Bejarano ER, Luna AP, Shams-Bakhsh M. Functional Analysis of V2 Protein of Beet Curly Top Iran Virus. Plants (Basel) 2022; 11:3351. [PMID: 36501393 PMCID: PMC9736138 DOI: 10.3390/plants11233351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/23/2022] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
Geminivirus beet curly top Iran virus (BCTIV) is one of the main causal agents of the beet curly top disease in Iran and the newly established Becurtovirus genus type species. Although the biological features of known becurtoviruses are similar to those of curtoviruses, they only share a limited sequence identity, and no information is available on the function of their viral genes. In this work, we demonstrate that BCTIV V2, as the curtoviral V2, is also a local silencing suppressor in Nicotiana benthamiana and can delay the systemic silencing spreading, although it cannot block the cell-to-cell movement of the silencing signal to adjacent cells. BCTIV V2 shows the same subcellular localization as curtoviral V2, being detected in the nucleus and perinuclear region, and its ectopic expression from a PVX-derived vector also causes the induction of necrotic lesions in N. benthamiana, such as the ones produced during the HR, both at the local and systemic levels. The results from the infection of N. benthamiana with a V2 BCTIV mutant showed that V2 is required for systemic infection, but not for viral replication, in a local infection. Considering all these results, we can conclude that BCTIV V2 is a functional homologue of curtoviral V2 and plays a crucial role in viral pathogenicity and systemic movement.
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Affiliation(s)
- Atiyeh Bahari
- Plant Pathology Department, Faculty of Agriculture, Tarbiat Modares University (TMU), Tehran 336-14115, Iran
| | - Araceli G. Castillo
- Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Departamento Biología Celular, Genética y Fisiología, Universidad de Málaga, 29010 Malaga, Spain
| | - Naser Safaie
- Plant Pathology Department, Faculty of Agriculture, Tarbiat Modares University (TMU), Tehran 336-14115, Iran
| | - Eduardo R. Bejarano
- Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Departamento Biología Celular, Genética y Fisiología, Universidad de Málaga, 29010 Malaga, Spain
| | - Ana P. Luna
- Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Departamento Biología Celular, Genética y Fisiología, Universidad de Málaga, 29010 Malaga, Spain
| | - Masoud Shams-Bakhsh
- Plant Pathology Department, Faculty of Agriculture, Tarbiat Modares University (TMU), Tehran 336-14115, Iran
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7
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Gámez-Arcas S, Muñoz FJ, Ricarte-Bermejo A, Sánchez-López ÁM, Baslam M, Baroja-Fernández E, Bahaji A, Almagro G, De Diego N, Doležal K, Novák O, Leal-López J, León Morcillo RJ, Castillo AG, Pozueta-Romero J. Glucose-6-P/phosphate translocator2 mediates the phosphoglucose-isomerase1-independent response to microbial volatiles. Plant Physiol 2022; 190:2137-2154. [PMID: 36111879 PMCID: PMC9706466 DOI: 10.1093/plphys/kiac433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/26/2022] [Indexed: 06/15/2023]
Abstract
In Arabidopsis (Arabidopsis thaliana), the plastidial isoform of phosphoglucose isomerase (PGI1) mediates photosynthesis, metabolism, and development, probably due to its involvement in the synthesis of isoprenoid-derived signals in vascular tissues. Microbial volatile compounds (VCs) with molecular masses of <45 Da promote photosynthesis, growth, and starch overaccumulation in leaves through PGI1-independent mechanisms. Exposure to these compounds in leaves enhances the levels of GLUCOSE-6-PHOSPHATE/PHOSPHATE TRANSLOCATOR2 (GPT2) transcripts. We hypothesized that the PGI1-independent response to microbial volatile emissions involves GPT2 action. To test this hypothesis, we characterized the responses of wild-type (WT), GPT2-null gpt2-1, PGI1-null pgi1-2, and pgi1-2gpt2-1 plants to small fungal VCs. In addition, we characterized the responses of pgi1-2gpt2-1 plants expressing GPT2 under the control of a vascular tissue- and root tip-specific promoter to small fungal VCs. Fungal VCs promoted increases in growth, starch content, and photosynthesis in WT and gpt2-1 plants. These changes were substantially weaker in VC-exposed pgi1-2gpt2-1 plants but reverted to WT levels with vascular and root tip-specific GPT2 expression. Proteomic analyses did not detect enhanced levels of GPT2 protein in VC-exposed leaves and showed that knocking out GPT2 reduced the expression of photosynthesis-related proteins in pgi1-2 plants. Histochemical analyses of GUS activity in plants expressing GPT2-GUS under the control of the GPT2 promoter showed that GPT2 is mainly expressed in root tips and vascular tissues around hydathodes. Overall, the data indicated that the PGI1-independent response to microbial VCs involves resetting of the photosynthesis-related proteome in leaves through long-distance GPT2 action.
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Affiliation(s)
- Samuel Gámez-Arcas
- Instituto de Agrobiotecnología (IdAB), CSIC-Gobierno de Navarra, Iruñako etorbidea 123, 31192 Mutiloabeti, Nafarroa, Spain
| | | | - Adriana Ricarte-Bermejo
- Instituto de Agrobiotecnología (IdAB), CSIC-Gobierno de Navarra, Iruñako etorbidea 123, 31192 Mutiloabeti, Nafarroa, Spain
| | - Ángela María Sánchez-López
- Instituto de Agrobiotecnología (IdAB), CSIC-Gobierno de Navarra, Iruñako etorbidea 123, 31192 Mutiloabeti, Nafarroa, Spain
| | - Marouane Baslam
- Instituto de Agrobiotecnología (IdAB), CSIC-Gobierno de Navarra, Iruñako etorbidea 123, 31192 Mutiloabeti, Nafarroa, Spain
- Laboratory of Biochemistry, Faculty of Agriculture, Niigata University, Niigata 950-2181, Japan
| | - Edurne Baroja-Fernández
- Instituto de Agrobiotecnología (IdAB), CSIC-Gobierno de Navarra, Iruñako etorbidea 123, 31192 Mutiloabeti, Nafarroa, Spain
| | - Abdellatif Bahaji
- Instituto de Agrobiotecnología (IdAB), CSIC-Gobierno de Navarra, Iruñako etorbidea 123, 31192 Mutiloabeti, Nafarroa, Spain
| | - Goizeder Almagro
- Instituto de Agrobiotecnología (IdAB), CSIC-Gobierno de Navarra, Iruñako etorbidea 123, 31192 Mutiloabeti, Nafarroa, Spain
| | - Nuria De Diego
- Centre of Region Haná for Biotechnological and Agricultural Research, Czech Advanced Technology and Research Institute, Olomouc, Czech Republic
| | - Karel Doležal
- Department of Chemical Biology, Faculty of Science, Palacký University, Olomouc CZ-78371, Czech Republic
- Laboratory of Growth Regulators, Faculty of Science of Palacký University and Institute of Experimental Botany of the Czech Academy of Sciences, Olomouc CZ-78371, Czech Republic
| | - Ondřej Novák
- Laboratory of Growth Regulators, Faculty of Science of Palacký University and Institute of Experimental Botany of the Czech Academy of Sciences, Olomouc CZ-78371, Czech Republic
| | - Jesús Leal-López
- Institute for Mediterranean and Subtropical Horticulture “La Mayora” (IHSM), CSIC-UMA, 29010 Málaga, Spain
| | - Rafael Jorge León Morcillo
- Institute for Mediterranean and Subtropical Horticulture “La Mayora” (IHSM), CSIC-UMA, 29010 Málaga, Spain
| | - Araceli G Castillo
- Institute for Mediterranean and Subtropical Horticulture “La Mayora” (IHSM), CSIC-UMA, 29010 Málaga, Spain
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8
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Kesten C, García-Moreno Á, Amorim-Silva V, Menna A, Castillo AG, Percio F, Armengot L, Ruiz-Lopez N, Jaillais Y, Sánchez-Rodríguez C, Botella MA. Peripheral membrane proteins modulate stress tolerance by safeguarding cellulose synthases. Sci Adv 2022; 8:eabq6971. [PMID: 36383676 PMCID: PMC9668322 DOI: 10.1126/sciadv.abq6971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 09/01/2022] [Accepted: 10/20/2022] [Indexed: 05/12/2023]
Abstract
Controlled primary cell wall remodeling allows plant growth under stressful conditions, but how these changes are conveyed to adjust cellulose synthesis is not understood. Here, we identify the TETRATRICOPEPTIDE THIOREDOXIN-LIKE (TTL) proteins as new members of the cellulose synthase complex (CSC) and describe their unique and hitherto unknown dynamic association with the CSC under cellulose-deficient conditions. We find that TTLs are essential for maintaining cellulose synthesis under high-salinity conditions, establishing a stress-resilient cortical microtubule array, and stabilizing CSCs at the plasma membrane. To fulfill these functions, TTLs interact with CELLULOSE SYNTHASE 1 (CESA1) and engage with cortical microtubules to promote their polymerization. We propose that TTLs function as bridges connecting stress perception with dynamic regulation of cellulose biosynthesis at the plasma membrane.
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Affiliation(s)
- Christopher Kesten
- Department of Biology, ETH-Zürich, 8092 Zürich, Switzerland
- Department for Plant and Environmental Sciences, University of Copenhagen, 1871 Frederiksberg C, Denmark
| | - Álvaro García-Moreno
- Instituto de Hortofruticultura Subtropical y Mediterránea, Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Dept. Biología Molecular y Bioquímica, Campus de Teatinos, Málaga E-29071, Spain
| | - Vítor Amorim-Silva
- Instituto de Hortofruticultura Subtropical y Mediterránea, Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Dept. Biología Molecular y Bioquímica, Campus de Teatinos, Málaga E-29071, Spain
| | | | - Araceli G. Castillo
- Instituto de Hortofruticultura Subtropical y Mediterránea, Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Dept. Biología Celular, Genética y Fisiología, Campus de Teatinos, Málaga E-29071, Spain
| | - Francisco Percio
- Instituto de Hortofruticultura Subtropical y Mediterránea, Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Dept. Biología Molecular y Bioquímica, Campus de Teatinos, Málaga E-29071, Spain
| | - Laia Armengot
- Laboratoire Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, CNRS, INRAE, F-69342 Lyon, France
| | - Noemi Ruiz-Lopez
- Instituto de Hortofruticultura Subtropical y Mediterránea, Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Dept. Biología Molecular y Bioquímica, Campus de Teatinos, Málaga E-29071, Spain
| | - Yvon Jaillais
- Laboratoire Reproduction et Développement des Plantes, Université de Lyon, ENS de Lyon, CNRS, INRAE, F-69342 Lyon, France
| | | | - Miguel A. Botella
- Instituto de Hortofruticultura Subtropical y Mediterránea, Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Dept. Biología Molecular y Bioquímica, Campus de Teatinos, Málaga E-29071, Spain
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9
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Fenech M, Amorim-Silva V, Esteban del Valle A, Arnaud D, Ruiz-Lopez N, Castillo AG, Smirnoff N, Botella MA. The role of GDP-l-galactose phosphorylase in the control of ascorbate biosynthesis. Plant Physiol 2021; 185:1574-1594. [PMID: 33793952 PMCID: PMC8133566 DOI: 10.1093/plphys/kiab010] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 12/28/2020] [Indexed: 05/03/2023]
Abstract
The enzymes involved in l-ascorbate biosynthesis in photosynthetic organisms (the Smirnoff-Wheeler [SW] pathway) are well established. Here, we analyzed their subcellular localizations and potential physical interactions and assessed their role in the control of ascorbate synthesis. Transient expression of C terminal-tagged fusions of SW genes in Nicotiana benthamiana and Arabidopsis thaliana mutants complemented with genomic constructs showed that while GDP-d-mannose epimerase is cytosolic, all the enzymes from GDP-d-mannose pyrophosphorylase (GMP) to l-galactose dehydrogenase (l-GalDH) show a dual cytosolic/nuclear localization. All transgenic lines expressing functional SW protein green fluorescent protein fusions driven by their endogenous promoters showed a high accumulation of the fusion proteins, with the exception of those lines expressing GDP-l-galactose phosphorylase (GGP) protein, which had very low abundance. Transient expression of individual or combinations of SW pathway enzymes in N. benthamiana only increased ascorbate concentration if GGP was included. Although we did not detect direct interaction between the different enzymes of the pathway using yeast-two hybrid analysis, consecutive SW enzymes, as well as the first and last enzymes (GMP and l-GalDH) associated in coimmunoprecipitation studies. This association was supported by gel filtration chromatography, showing the presence of SW proteins in high-molecular weight fractions. Finally, metabolic control analysis incorporating known kinetic characteristics showed that previously reported feedback repression at the GGP step, combined with its relatively low abundance, confers a high-flux control coefficient and rationalizes why manipulation of other enzymes has little effect on ascorbate concentration.
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Affiliation(s)
- Mario Fenech
- Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM-UMA-CSIC), Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain
| | - Vítor Amorim-Silva
- Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM-UMA-CSIC), Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain
| | - Alicia Esteban del Valle
- Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM-UMA-CSIC), Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain
| | - Dominique Arnaud
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, UK
| | - Noemi Ruiz-Lopez
- Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM-UMA-CSIC), Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain
| | - Araceli G Castillo
- Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM-UMA-CSIC), Departamento de Genética, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain
| | - Nicholas Smirnoff
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter EX4 4QD, UK
| | - Miguel A Botella
- Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM-UMA-CSIC), Departamento de Biología Molecular y Bioquímica, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain
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10
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Cana-Quijada P, Romero-Rodríguez B, Vallejo PG, Castillo AG, Bejarano ER. Cutting-edge technology to generate plant immunity against geminiviruses. Curr Opin Virol 2020; 42:58-64. [PMID: 32698102 DOI: 10.1016/j.coviro.2020.06.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 06/09/2020] [Accepted: 06/10/2020] [Indexed: 11/28/2022]
Abstract
Geminiviruses (viruses with circular, single-stranded DNA genomes) are one of the major groups of plant viruses causing severe economic problems for agriculture worldwide. The control of these pathogens has become a priority to maintain the production of important crops, including cotton, maize, cassava, and other vegetables. Obtaining resistant plants is the most powerful strategy and a key factor to stablish an effective integrated pest management for a robust control. In the last few decades, numerous studies have successfully approached that goal using diverse strategies based on plant variability or on the engineered expression of proteins/RNAs. The increasing knowledge of the mechanisms involved in the geminivirus-plant-vector interactions, in combination with the development of gene editing technology and nanoparticles, draw new and promising strategies for a durable control of these emerging pathogens.
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Affiliation(s)
- Pepe Cana-Quijada
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Departamento de Genética, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain
| | - Beatriz Romero-Rodríguez
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Departamento de Genética, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain
| | - Pablo G Vallejo
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Departamento de Genética, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain
| | - Araceli G Castillo
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Departamento de Genética, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain
| | - Eduardo R Bejarano
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Departamento de Genética, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain
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11
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Luna AP, Romero-Rodríguez B, Rosas-Díaz T, Cerero L, Rodríguez-Negrete EA, Castillo AG, Bejarano ER. Characterization of Curtovirus V2 Protein, a Functional Homolog of Begomovirus V2. Front Plant Sci 2020; 11:835. [PMID: 32636860 PMCID: PMC7318802 DOI: 10.3389/fpls.2020.00835] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 05/25/2020] [Indexed: 05/30/2023]
Abstract
Geminiviruses are single-stranded DNA plant viruses with circular genomes packaged within geminate particles. Among the Geminiviridae family, Begomovirus and Curtovirus comprise the two best characterized genera. Curtovirus and Old World begomovirus possess similar genome structures with six to seven open-reading frames (ORF). Among them, begomovirus and curtovirus V2 ORFs share the same location in the viral genome, encode proteins of similar size, but show extremely poor sequence homology between the genera. V2 from Beet curly top virus (BCTV), the model species for the Curtovirus genus, as it begomoviral counterpart, suppresses post-transcriptional gene silencing (PTGS) by impairing the RDR6/SGS3 pathway and localizes in the nucleus spanning from the perinuclear region to the cell periphery. By aminoacid sequence comparison we have identified that curtoviral and begomoviral V2 proteins shared two hydrophobic domains and a putative phosphorylation motif. These three domains are essential for BCTV V2 silencing suppression activity, for the proper nuclear localization of the protein and for systemic infection. The lack of suppression activity in the mutated versions of V2 is complemented by the impaired function of RDR6 in Nicotiana benthamiana but the ability of the viral mutants to produce a systemic infection is not recovered in gene silencing mutant backgrounds. We have also demonstrated that, as its begomoviral homolog, V2 from BCTV is able to induce systemic symptoms and necrosis associated with a hypersensitive response-like (HR-like) when expressed from Potato virus X vector in N. benthamiana, and that this pathogenicity activity does not dependent of its ability to supress PTGS.
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Affiliation(s)
- Ana P Luna
- Departamento de Genética, Facultad de Ciencias, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Universidad de Málaga, Málaga, Spain
| | - Beatriz Romero-Rodríguez
- Departamento de Genética, Facultad de Ciencias, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Universidad de Málaga, Málaga, Spain
| | - Tábata Rosas-Díaz
- Departamento de Genética, Facultad de Ciencias, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Universidad de Málaga, Málaga, Spain
| | - Laura Cerero
- Departamento de Genética, Facultad de Ciencias, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Universidad de Málaga, Málaga, Spain
| | - Edgar A Rodríguez-Negrete
- CONACyT, Departamento de Biotecnología Agrícola, Instituto Politécnico Nacional, CIIDIR-Unidad Sinaloa, Guasave, Mexico
| | - Araceli G Castillo
- Departamento de Genética, Facultad de Ciencias, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Universidad de Málaga, Málaga, Spain
| | - Eduardo R Bejarano
- Departamento de Genética, Facultad de Ciencias, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora" (IHSM-UMA-CSIC), Universidad de Málaga, Málaga, Spain
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12
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Corrales‐Gutierrez M, Medina‐Puche L, Yu Y, Wang L, Ding X, Luna AP, Bejarano ER, Castillo AG, Lozano‐Duran R. The C4 protein from the geminivirus Tomato yellow leaf curl virus confers drought tolerance in Arabidopsis through an ABA-independent mechanism. Plant Biotechnol J 2020; 18:1121-1123. [PMID: 31637850 PMCID: PMC7152601 DOI: 10.1111/pbi.13280] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 09/06/2019] [Accepted: 10/18/2019] [Indexed: 05/24/2023]
Affiliation(s)
- Miguel Corrales‐Gutierrez
- Shanghai Center for Plant Stress BiologyChinese Academy of SciencesShanghaiChina
- Center for Excellence in Molecular Plant ScienceChinese Academy of SciencesShanghaiChina
- Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM‐UMA‐CSIC)Area de GenéticaFacultad de CienciasUniversidad de MálagaMálagaSpain
| | - Laura Medina‐Puche
- Shanghai Center for Plant Stress BiologyChinese Academy of SciencesShanghaiChina
- Center for Excellence in Molecular Plant ScienceChinese Academy of SciencesShanghaiChina
| | - Yanling Yu
- Shanghai Center for Plant Stress BiologyChinese Academy of SciencesShanghaiChina
- Center for Excellence in Molecular Plant ScienceChinese Academy of SciencesShanghaiChina
- University of the Chinese Academy of SciencesBeijingChina
| | - Liping Wang
- Shanghai Center for Plant Stress BiologyChinese Academy of SciencesShanghaiChina
- Center for Excellence in Molecular Plant ScienceChinese Academy of SciencesShanghaiChina
- University of the Chinese Academy of SciencesBeijingChina
| | - Xue Ding
- Shanghai Center for Plant Stress BiologyChinese Academy of SciencesShanghaiChina
- Center for Excellence in Molecular Plant ScienceChinese Academy of SciencesShanghaiChina
- University of the Chinese Academy of SciencesBeijingChina
| | - Ana P. Luna
- Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM‐UMA‐CSIC)Area de GenéticaFacultad de CienciasUniversidad de MálagaMálagaSpain
| | - Eduardo R. Bejarano
- Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM‐UMA‐CSIC)Area de GenéticaFacultad de CienciasUniversidad de MálagaMálagaSpain
| | - Araceli G. Castillo
- Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora” (IHSM‐UMA‐CSIC)Area de GenéticaFacultad de CienciasUniversidad de MálagaMálagaSpain
| | - Rosa Lozano‐Duran
- Shanghai Center for Plant Stress BiologyChinese Academy of SciencesShanghaiChina
- Center for Excellence in Molecular Plant ScienceChinese Academy of SciencesShanghaiChina
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13
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Arce-Leal ÁP, Bautista R, Rodríguez-Negrete EA, Manzanilla-Ramírez MÁ, Velázquez-Monreal JJ, Santos-Cervantes ME, Méndez-Lozano J, Beuzón CR, Bejarano ER, Castillo AG, Claros MG, Leyva-López NE. Gene Expression Profile of Mexican Lime ( Citrus aurantifolia) Trees in Response to Huanglongbing Disease caused by Candidatus Liberibacter asiaticus. Microorganisms 2020; 8:microorganisms8040528. [PMID: 32272632 PMCID: PMC7232340 DOI: 10.3390/microorganisms8040528] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 03/22/2020] [Accepted: 03/23/2020] [Indexed: 12/27/2022] Open
Abstract
Nowadays, Huanglongbing (HLB) disease, associated with Candidatus Liberibacter asiaticus (CLas), seriously affects citriculture worldwide, and no cure is currently available. Transcriptomic analysis of host-pathogen interaction is the first step to understand the molecular landscape of a disease. Previous works have reported the transcriptome profiling in response to HLB in different susceptible citrus species; however, similar studies in tolerant citrus species, including Mexican lime, are limited. In this work, we have obtained an RNA-seq-based differential expression profile of Mexican lime plants challenged against CLas infection, at both asymptomatic and symptomatic stages. Typical HLB-responsive differentially expressed genes (DEGs) are involved in photosynthesis, secondary metabolism, and phytohormone homeostasis. Enrichment of DEGs associated with biotic response showed that genes related to cell wall, secondary metabolism, transcription factors, signaling, and redox reactions could play a role in the tolerance of Mexican lime against CLas infection. Interestingly, despite some concordance observed between transcriptional responses of different tolerant citrus species, a subset of DEGs appeared to be species-specific. Our data highlights the importance of studying the host response during HLB disease using as model tolerant citrus species, in order to design new and opportune diagnostic and management methods.
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Affiliation(s)
- Ángela Paulina Arce-Leal
- Instituto Politécnico Nacional, CIIDIR-Unidad Sinaloa, 81101 Guasave, Mexico; (Á.P.A.-L.); (M.E.S.-C.); (J.M.-L.)
| | - Rocío Bautista
- Plataforma Andaluza de Bioinformática, Universidad de Málaga, 29590 Malaga, Spain; (R.B.); (M.G.C.)
| | - Edgar Antonio Rodríguez-Negrete
- CONACyT, Departamento de Biotecnología Agrícola, Instituto Politécnico Nacional, CIIDIR-Unidad Sinaloa, 81101 Guasave, Mexico;
| | | | | | - María Elena Santos-Cervantes
- Instituto Politécnico Nacional, CIIDIR-Unidad Sinaloa, 81101 Guasave, Mexico; (Á.P.A.-L.); (M.E.S.-C.); (J.M.-L.)
| | - Jesús Méndez-Lozano
- Instituto Politécnico Nacional, CIIDIR-Unidad Sinaloa, 81101 Guasave, Mexico; (Á.P.A.-L.); (M.E.S.-C.); (J.M.-L.)
| | - Carmen R. Beuzón
- Área de Genética, Facultad de Ciencias, Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora (IHSM-UMA-CSIC), Universidad de Málaga, 29010 Málaga, Spain
| | - Eduardo R. Bejarano
- Área de Genética, Facultad de Ciencias, Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora (IHSM-UMA-CSIC), Universidad de Málaga, 29010 Málaga, Spain
| | - Araceli G. Castillo
- Área de Genética, Facultad de Ciencias, Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora (IHSM-UMA-CSIC), Universidad de Málaga, 29010 Málaga, Spain
| | - M. Gonzalo Claros
- Plataforma Andaluza de Bioinformática, Universidad de Málaga, 29590 Malaga, Spain; (R.B.); (M.G.C.)
- Departamento de Biología Molecular y Bioquímica, Universidad de Málaga, 29010 Malaga, Spain
| | - Norma Elena Leyva-López
- Instituto Politécnico Nacional, CIIDIR-Unidad Sinaloa, 81101 Guasave, Mexico; (Á.P.A.-L.); (M.E.S.-C.); (J.M.-L.)
- Correspondence: ; Tel.: +52-687-110-0278
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14
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Arce-Leal ÁP, Bautista R, Rodríguez-Negrete EA, Manzanilla-Ramírez MÁ, Velázquez-Monreal JJ, Méndez-Lozano J, Bejarano ER, Castillo AG, Claros MG, Leyva-López NE. De novo assembly and functional annotation of Citrus aurantifolia transcriptome from Candidatus Liberibacter asiaticus infected and non-infected trees. Data Brief 2020; 29:105198. [PMID: 32071978 PMCID: PMC7011030 DOI: 10.1016/j.dib.2020.105198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/07/2020] [Accepted: 01/20/2020] [Indexed: 12/03/2022] Open
Abstract
Mexican lime (Citrus aurantifolia) belongs to the Rutaceae family and nowadays is one of the major commercial citrus crops in different countries. In Mexico, Mexican lime production is impaired by Huanglongbing (HLB) disease associated to Candidatus Liberibacter asiaticus (CLas) bacteria. To date, transcriptomic studies of CLas-Citrus interaction, have been performed mainly in sweet citrus models at symptomatic (early) stage where pleiotropic responses could mask important, pathogen-driven host modulation as well as, host antibacterial responses. Additionally, well-assembled reference transcriptomes for acid limes including C. aurantifolia are not available. The development of improved transcriptomic resources for CLas-citrus pathosystem, including both asymptomatic (early) and symptomatic (late) stages, could accelerate the understanding of the disease. Here, we provide the first transcriptomic analysis from healthy and HLB-infected C. aurantifolia leaves at both asymptomatic and symptomatic stages, using a RNA-seq approach in the Illumina NexSeq500 platform. The construction of the assembled transcriptome was conducted using the predesigned workflow Transflow and a total of 41,522 tentative transcripts (TTs) obtained. These C. aurantifolia TTs were functionally annotated using TAIR10 and UniProtKB databases. All raw reads were deposited in the NCBI SRA with accession numbers SRR10353556, SRR10353558, SRR10353560 and SRR10353562. Overall, this dataset adds new transcriptomic valuable tools for future breeding programs, will allow the design of novel diagnostic molecular markers, and will be an essential tool for studying the HLB disease.
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Affiliation(s)
- Ángela Paulina Arce-Leal
- Instituto Politécnico Nacional, CIIDIR-Unidad Sinaloa, Departamento de Biotecnología Agrícola, Mexico
| | - Rocío Bautista
- Plataforma Andaluza de Bioinformática, Universidad de Málaga, Malaga, Spain
| | - Edgar A Rodríguez-Negrete
- CONACyT, Instituto Politécnico Nacional, CIIDIR-Unidad Sinaloa, Departamento de Biotecnología Agrícola, Mexico
| | | | | | - Jesús Méndez-Lozano
- Instituto Politécnico Nacional, CIIDIR-Unidad Sinaloa, Departamento de Biotecnología Agrícola, Mexico
| | - Eduardo R Bejarano
- Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora (IHSM-UMA-CSIC), Área de Genética, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
| | - Araceli G Castillo
- Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora (IHSM-UMA-CSIC), Área de Genética, Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
| | - M Gonzalo Claros
- Plataforma Andaluza de Bioinformática, Universidad de Málaga, Malaga, Spain.,Departamento de Biología Molecular y Bioquímica, Universidad de Málaga, Malaga, Spain
| | - Norma Elena Leyva-López
- Instituto Politécnico Nacional, CIIDIR-Unidad Sinaloa, Departamento de Biotecnología Agrícola, Mexico
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15
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Pérez-Padilla V, Fortes IM, Romero-Rodríguez B, Arroyo-Mateos M, Castillo AG, Moyano C, De León L, Moriones E. Revisiting Seed Transmission of the Type Strain of Tomato yellow leaf curl virus in Tomato Plants. Phytopathology 2020; 110:121-129. [PMID: 31584339 DOI: 10.1094/phyto-07-19-0232-fi] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Isolates of the Tomato yellow leaf curl virus (TYLCV) species (genus Begomovirus, family Geminiviridae) infect tomato crops worldwide, causing severe economic damage. Members of the whitefly Bemisia tabaci sibling species group are the vector of begomoviruses, including TYLCV. However, transmission of isolates of the type strain (Israel [IL]) of TYLCV (TYLCV-IL) by tomato seed has recently been reported based on infections occurring in Korea. Because of the consequences of this finding on the epidemiology and control of the disease caused by TYLCV and on the seed market, it was considered essential to revisit and expand those results to other tomato-growing areas. TYLCV DNA content was detected in tomato and Nicotiana benthamiana seed collected from plants naturally or experimentally infected with TYLCV-IL, supporting its seedborne nature. The TYLCV-IL replication detected in tomato and N. benthamiana flower reproductive organs demonstrated close association of this virus with the seed during maturation. However, the significant reduction of TYLCV DNA load after surface disinfections of tomato seed suggests that most of the virus is located externally, as contaminant of the seed coat. Transmission assays, carried out with seven tomato genotypes and more than 3,000 tomato plants, revealed no evidence of seed transmission from "surface-disinfected" or untreated seed for two Mediterranean isolates of TYLCV-IL. Similar results were also obtained for seed collected from TYLCV-IL-infected N. benthamiana plants. The results support the conclusion that TYLCV-IL is seedborne but is not seed transmitted in tomato or N. benthamiana, suggesting that transmission through seed is not a general property of TYLCV.
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Affiliation(s)
- Verónica Pérez-Padilla
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Ctra. de La Coruña, km 7.5, E-28040 Madrid, Spain
| | - Isabel M Fortes
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Estación Experimental "La Mayora", E-29750 Algarrobo-Costa, Málaga, Spain
| | - Beatriz Romero-Rodríguez
- IHSM-UMA-CSIC, Área de Genética, Facultad de Ciencias, Universidad de Málaga, E-29071, Málaga, Spain
| | - Manuel Arroyo-Mateos
- IHSM-UMA-CSIC, Área de Genética, Facultad de Ciencias, Universidad de Málaga, E-29071, Málaga, Spain
| | - Araceli G Castillo
- IHSM-UMA-CSIC, Área de Genética, Facultad de Ciencias, Universidad de Málaga, E-29071, Málaga, Spain
| | - Cristina Moyano
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Ctra. de La Coruña, km 7.5, E-28040 Madrid, Spain
| | - Leandro De León
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Ctra. de La Coruña, km 7.5, E-28040 Madrid, Spain
| | - Enrique Moriones
- Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Estación Experimental "La Mayora", E-29750 Algarrobo-Costa, Málaga, Spain
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16
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Amorim-Silva V, García-Moreno Á, Castillo AG, Lakhssassi N, Esteban Del Valle A, Pérez-Sancho J, Li Y, Posé D, Pérez-Rodriguez J, Lin J, Valpuesta V, Borsani O, Zipfel C, Macho AP, Botella MA. TTL Proteins Scaffold Brassinosteroid Signaling Components at the Plasma Membrane to Optimize Signal Transduction in Arabidopsis. Plant Cell 2019; 31:1807-1828. [PMID: 31189737 PMCID: PMC6713313 DOI: 10.1105/tpc.19.00150] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/07/2019] [Accepted: 05/31/2019] [Indexed: 05/20/2023]
Abstract
Brassinosteroids (BRs) form a group of steroidal hormones essential for plant growth, development, and stress responses. BRs are perceived extracellularly by plasma membrane receptor-like kinases that activate an interconnected signal transduction cascade, leading to the transcriptional regulation of BR-responsive genes. TETRATRICOPEPTIDE THIOREDOXIN-LIKE (TTL) genes are specific for land plants, and their encoded proteins are defined by the presence of protein-protein interaction motives, that is, an intrinsic disordered region at the N terminus, six tetratricopeptide repeat domains, and a C terminus with homology to thioredoxins. TTL proteins thus likely mediate the assembly of multiprotein complexes. Phenotypic, molecular, and genetic analyses show that TTL proteins are positive regulators of BR signaling in Arabidopsis (Arabidopsis thaliana). TTL3 directly interacts with a constitutively active BRASSINOSTEROID INSENSITIVE1 (BRI1) receptor kinase, BRI1-SUPPRESSOR1 phosphatase, and the BRASSINAZOLE RESISTANT1 transcription factor and associates with BR-SIGNALING KINASE1, BRASSINOSTEROID INSENSITIVE2 kinases, but not with BRI1-ASSOCIATED KINASE1. A functional TTL3-green fluorescent protein (GFP) shows dual cytoplasmic plasma membrane localization. Depleting the endogenous BR content reduces plasma membrane localization of TTL3-GFP, while increasing BR content causes its plasma membrane relocalization, where it strengthens the association of BR signaling components. Our results reveal that TTL proteins promote BR responses and suggest that TTL proteins may function as scaffold proteins by bringing together cytoplasmic and plasma membrane BR signaling components.
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Affiliation(s)
- Vítor Amorim-Silva
- Departamento de Biología Molecular y Bioquímica, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora," Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Universidad de Málaga, Campus Teatinos, 29071 Málaga, Spain
| | - Álvaro García-Moreno
- Departamento de Biología Molecular y Bioquímica, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora," Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Universidad de Málaga, Campus Teatinos, 29071 Málaga, Spain
| | - Araceli G Castillo
- Departamento de Biología Celular, Genética y Fisiología, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora," Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Universidad de Málaga, Campus Teatinos, 29071 Málaga, Spain
| | - Naoufal Lakhssassi
- Department of Plant, Soil and Agricultural Systems, Southern Illinois University, Carbondale, Illinois 62901
| | - Alicia Esteban Del Valle
- Departamento de Biología Molecular y Bioquímica, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora," Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Universidad de Málaga, Campus Teatinos, 29071 Málaga, Spain
| | - Jessica Pérez-Sancho
- Departamento de Biología Molecular y Bioquímica, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora," Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Universidad de Málaga, Campus Teatinos, 29071 Málaga, Spain
| | - Yansha Li
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
| | - David Posé
- Departamento de Biología Molecular y Bioquímica, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora," Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Universidad de Málaga, Campus Teatinos, 29071 Málaga, Spain
| | - Josefa Pérez-Rodriguez
- Departamento de Biología Molecular y Bioquímica, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora," Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Universidad de Málaga, Campus Teatinos, 29071 Málaga, Spain
| | - Jinxing Lin
- College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
| | - Victoriano Valpuesta
- Departamento de Biología Molecular y Bioquímica, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora," Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Universidad de Málaga, Campus Teatinos, 29071 Málaga, Spain
| | - Omar Borsani
- Departamento de Biología Vegetal, Laboratorio de Bioquímica, Facultad de Agronomía Universidad de la República, Montevideo, Uruguay
| | - Cyril Zipfel
- The Sainsbury Laboratory, University of East Anglia, Norwich Research Park, Norwich, NR4 7UH, United Kingdom
- Institute of Plant and Microbial Biology and Zurich-Basel Plant Science Center, University of Zurich, CH-8008 Zurich, Switzerland
| | - Alberto P Macho
- Shanghai Center for Plant Stress Biology, CAS Center for Excellence in Molecular Plant Sciences, Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences (CAS), Shanghai, China
- The Sainsbury Laboratory, University of East Anglia, Norwich Research Park, Norwich, NR4 7UH, United Kingdom
| | - Miguel A Botella
- Departamento de Biología Molecular y Bioquímica, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora," Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Universidad de Málaga, Campus Teatinos, 29071 Málaga, Spain
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17
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Piedra-Aguilera Á, Jiao C, Luna AP, Villanueva F, Dabad M, Esteve-Codina A, Díaz-Pendón JA, Fei Z, Bejarano ER, Castillo AG. Integrated single-base resolution maps of transcriptome, sRNAome and methylome of Tomato yellow leaf curl virus (TYLCV) in tomato. Sci Rep 2019; 9:2863. [PMID: 30814535 PMCID: PMC6393547 DOI: 10.1038/s41598-019-39239-6] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 01/16/2019] [Indexed: 11/09/2022] Open
Abstract
Geminiviruses are plant ssDNA viruses that replicate through dsDNA intermediates and form minichromosomes which carry the same epigenetic marks as the host chromatin. During the infection, geminiviruses are targets of the post-transcriptional and transcriptional gene silencing machinery. To obtain insights into the connection between virus-derived small RNAs (vsRNAs), viral genome methylation and gene expression, we obtained the transcriptome, sRNAome and methylome from the geminivirus Tomato yellow leaf curl virus-infected tomato plants. The results showed accumulation of transcripts just at the viral ORFs, while vsRNAs spanned the entire genome, showing a prevalent accumulation at regions where the viral ORFs overlapped. The viral genome was not homogenously methylated showing two highly methylated regions located in the C1 ORF and around the intergenic region (IR). The compilation of those results showed a partial correlation between vsRNA accumulation, gene expression and DNA methylation. We could distinguish different epigenetic scenarios along the viral genome, suggesting that in addition to its function as a plant defence mechanism, DNA methylation could have a role in viral gene regulation. To our knowledge, this is the first report that shows integrative single-nucleotide maps of DNA methylation, vsRNA accumulation and gene expression from a plant virus.
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Affiliation(s)
- Álvaro Piedra-Aguilera
- Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora (IHSM-UMA-CSIC), Área de Genética, Facultad de Ciencias, Universidad de Málaga, E-29071, Málaga, Spain
| | - Chen Jiao
- Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, New York, USA
| | - Ana P Luna
- Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora (IHSM-UMA-CSIC), Área de Genética, Facultad de Ciencias, Universidad de Málaga, E-29071, Málaga, Spain
| | - Francisco Villanueva
- Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora (IHSM-UMA-CSIC), Plant Virology group, E. E. La Mayora CSIC, Algarrobo-Costa, E-29750, Málaga, Spain
| | - Marc Dabad
- CNAG-CRG, Barcelona Institute of Science and Technology (BIST), E-08028, Barcelona, Spain
| | - Anna Esteve-Codina
- CNAG-CRG, Barcelona Institute of Science and Technology (BIST), E-08028, Barcelona, Spain.,Universitat Pompeu Fabra (UPF), E-08003, Barcelona, Spain
| | - Juan A Díaz-Pendón
- Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora (IHSM-UMA-CSIC), Plant Virology group, E. E. La Mayora CSIC, Algarrobo-Costa, E-29750, Málaga, Spain
| | - Zhangjun Fei
- Boyce Thompson Institute for Plant Research, Cornell University, Ithaca, New York, USA
| | - Eduardo R Bejarano
- Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora (IHSM-UMA-CSIC), Área de Genética, Facultad de Ciencias, Universidad de Málaga, E-29071, Málaga, Spain
| | - Araceli G Castillo
- Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora (IHSM-UMA-CSIC), Área de Genética, Facultad de Ciencias, Universidad de Málaga, E-29071, Málaga, Spain.
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18
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Castro PH, Santos MÂ, Freitas S, Cana-Quijada P, Lourenço T, Rodrigues MAA, Fonseca F, Ruiz-Albert J, Azevedo JE, Tavares RM, Castillo AG, Bejarano ER, Azevedo H. Arabidopsis thaliana SPF1 and SPF2 are nuclear-located ULP2-like SUMO proteases that act downstream of SIZ1 in plant development. J Exp Bot 2018; 69:4633-4649. [PMID: 30053161 PMCID: PMC6117582 DOI: 10.1093/jxb/ery265] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Post-translational modifiers such as the small ubiquitin-like modifier (SUMO) peptide act as fast and reversible protein regulators. Functional characterization of the sumoylation machinery has determined the key regulatory role that SUMO plays in plant development. Unlike components of the SUMO conjugation pathway, SUMO proteases (ULPs) are encoded by a relatively large gene family and are potential sources of specificity within the pathway. This study reports a thorough comparative genomics and phylogenetic characterization of plant ULPs, revealing the presence of one ULP1-like and three ULP2-like SUMO protease subgroups within plant genomes. As representatives of an under-studied subgroup, Arabidopsis SPF1 and SPF2 were subjected to functional characterization. Loss-of-function mutants implicated both proteins with vegetative growth, flowering time, and seed size and yield. Mutants constitutively accumulated SUMO conjugates, and yeast complementation assays associated these proteins with the function of ScUlp2 but not ScUlp1. Fluorescence imaging placed both proteins in the plant cell nucleoplasm. Transcriptomics analysis indicated strong regulatory involvement in secondary metabolism, cell wall remodelling, and nitrate assimilation. Furthermore, developmental defects of the spf1-1 spf2-2 (spf1/2) double-mutant opposed those of the major E3 ligase siz1 mutant and, most significantly, developmental and transcriptomic characterization of the siz1 spf1/2 triple-mutant placed SIZ1 as epistatic to SPF1 and SPF2.
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Affiliation(s)
- Pedro Humberto Castro
- Biosystems & Integrative Sciences Institute (BioISI), Plant Functional Biology Center (CBFP), University of Minho, Campus de Gualtar, Braga, Portugal
- Area de Genética, Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora”, Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Campus Teatinos, Málaga, Spain
- CIBIO, InBIO—Research Network in Biodiversity and Evolutionary Biology, Universidade do Porto, Campus Agrário de Vairão, Vairão, Portugal
| | - Miguel Ângelo Santos
- Biosystems & Integrative Sciences Institute (BioISI), Plant Functional Biology Center (CBFP), University of Minho, Campus de Gualtar, Braga, Portugal
| | - Sara Freitas
- Biosystems & Integrative Sciences Institute (BioISI), Plant Functional Biology Center (CBFP), University of Minho, Campus de Gualtar, Braga, Portugal
- CIBIO, InBIO—Research Network in Biodiversity and Evolutionary Biology, Universidade do Porto, Campus Agrário de Vairão, Vairão, Portugal
| | - Pepe Cana-Quijada
- Area de Genética, Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora”, Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Campus Teatinos, Málaga, Spain
| | - Tiago Lourenço
- Biosystems & Integrative Sciences Institute (BioISI), Plant Functional Biology Center (CBFP), University of Minho, Campus de Gualtar, Braga, Portugal
| | - Mafalda A A Rodrigues
- PRPlants Lab, GPlantS Unit, Instituto de Tecnologia Química e Biológica—Universidade Nova de Lisboa, Estação Agronómica Nacional, Oeiras, Portugal
| | - Fátima Fonseca
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Porto, Portugal
| | - Javier Ruiz-Albert
- Area de Genética, Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora”, Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Campus Teatinos, Málaga, Spain
| | - Jorge E Azevedo
- Instituto de Investigação e Inovação em Saúde (i3S), Universidade do Porto, Porto, Portugal
- Instituto de Biologia Molecular e Celular (IBMC), Universidade do Porto, Porto, Portugal
- Instituto de Ciências Biomédicas de Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Rui Manuel Tavares
- Biosystems & Integrative Sciences Institute (BioISI), Plant Functional Biology Center (CBFP), University of Minho, Campus de Gualtar, Braga, Portugal
| | - Araceli G Castillo
- Area de Genética, Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora”, Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Campus Teatinos, Málaga, Spain
| | - Eduardo R Bejarano
- Area de Genética, Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora”, Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Campus Teatinos, Málaga, Spain
| | - Herlander Azevedo
- CIBIO, InBIO—Research Network in Biodiversity and Evolutionary Biology, Universidade do Porto, Campus Agrário de Vairão, Vairão, Portugal
- Departamento de Biologia, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
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Luna AP, Rodríguez-Negrete EA, Morilla G, Wang L, Lozano-Durán R, Castillo AG, Bejarano ER. V2 from a curtovirus is a suppressor of post-transcriptional gene silencing. J Gen Virol 2017; 98:2607-2614. [PMID: 28933688 DOI: 10.1099/jgv.0.000933] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The suppression of gene silencing is a key mechanism for the success of viral infection in plants. DNA viruses from the Geminiviridae family encode several proteins that suppress transcriptional and post-transcriptional gene silencing (TGS/PTGS). In Begomovirus, the most abundant genus of this family, three out of six genome-encoded proteins, namely C2, C4 and V2, have been shown to suppress PTGS, with V2 being the strongest PTGS suppressor in transient assays. Beet curly top virus (BCTV), the model species for the Curtovirus genus, is able to infect the widest range of plants among geminiviruses. In this genus, only one protein, C2/L2, has been described as inhibiting PTGS. We show here that, despite the lack of sequence homology with its begomoviral counterpart, BCTV V2 acts as a potent PTGS suppressor, possibly by impairing the RDR6 (RNA-dependent RNA polymerase 6)/suppressor of gene silencing 3 (SGS3) pathway.
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Affiliation(s)
- Ana P Luna
- Instituto de Hortofruticultura Subtropical y Mediterránea 'La Mayora' (IHSM-UMA-CSIC), Area de Genética, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain
| | - Edgar A Rodríguez-Negrete
- Instituto de Hortofruticultura Subtropical y Mediterránea 'La Mayora' (IHSM-UMA-CSIC), Area de Genética, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain.,Present address: Departamento de Biotecnología Agrícola, Instituto Politécnico Nacional, CIIDIR-IPN, Unidad Sinaloa, Blvd. Juan de Dios Bátiz Paredes No 250. Guasave, Sinaloa CP 81101, Mexico
| | - Gabriel Morilla
- Instituto de Hortofruticultura Subtropical y Mediterránea 'La Mayora' (IHSM-UMA-CSIC), Area de Genética, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain
| | - Liping Wang
- Shanghai Center for Plant Stress Biology (PSC), Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences, Shanghai 201602, PR China.,University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Rosa Lozano-Durán
- Shanghai Center for Plant Stress Biology (PSC), Shanghai Institutes of Biological Sciences, Chinese Academy of Sciences, Shanghai 201602, PR China
| | - Araceli G Castillo
- Instituto de Hortofruticultura Subtropical y Mediterránea 'La Mayora' (IHSM-UMA-CSIC), Area de Genética, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain
| | - Eduardo R Bejarano
- Instituto de Hortofruticultura Subtropical y Mediterránea 'La Mayora' (IHSM-UMA-CSIC), Area de Genética, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos s/n, E-29071 Málaga, Spain
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20
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Abstract
The yeast two-hybrid system is currently one of the most standardized protein interaction mapping techniques. The rationale of the yeast two-hybrid system relies on the physical separation of the DNA-binding domain from the transcriptional activation domain of several transcription factors. The protein of interest (bait) is fused to a DNA-binding domain, and complementary DNA (cDNA) library-encoded proteins are fused to a transcriptional activation domain. When a protein encoded by the cDNA library binds to the bait, both activities of the transcription factor are rejoined resulting in transcription from a reporter gene. Here, we describe protocols to test interactions between two individual proteins and to look for novel interacting partners by screening a single protein or domain against a library of other proteins using a GAL4 based yeast two-hybrid system.
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Affiliation(s)
- Edgar Rodríguez-Negrete
- Departamento de Biología Celular, Genética y Fisiología, Instituto de Hortofruticultura Subtropical y Mediterránea "La Mayora", Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA- CSIC), Universidad de Málaga, Málaga, Spain
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21
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Rodríguez-Negrete E, Lozano-Durán R, Piedra-Aguilera A, Cruzado L, Bejarano ER, Castillo AG. Geminivirus Rep protein interferes with the plant DNA methylation machinery and suppresses transcriptional gene silencing. New Phytol 2013; 199:464-475. [PMID: 23614786 DOI: 10.1111/nph.12286] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2012] [Accepted: 03/13/2013] [Indexed: 05/17/2023]
Abstract
Cytosine methylation is an epigenetic mark that promotes gene silencing and plays an important role in genome defence against transposons and invading DNA viruses. Previous data showed that the largest family of single-stranded DNA viruses, Geminiviridae, prevents methylation-mediated transcriptional gene silencing (TGS) by interfering with the proper functioning of the plant methylation cycle. Here, we describe a novel counter-defence strategy used by geminiviruses, which reduces the expression of the plant maintenance DNA methyltransferases, METHYLTRANSFERASE 1 (MET1) and CHROMOMETHYLASE 3 (CMT3), in both locally and systemically infected tissues. We demonstrated that the virus-mediated repression of these two maintenance DNA methyltransferases is widespread among geminivirus species. Additionally, we identified Rep (Replication associated protein) as the geminiviral protein responsible for the repression of MET1 and CMT3, and another viral protein, C4, as an ancillary player in MET1 down-regulation. The presence of Rep suppressed TGS of an Arabidopsis thaliana transgene and of host loci whose expression was strongly controlled by CG methylation. Bisulfite sequencing analyses showed that the expression of Rep caused a substantial reduction in the levels of DNA methylation at CG sites. Our findings suggest that Rep, the only viral protein essential for replication, displays TGS suppressor activity through a mechanism distinct from that thus far described for geminiviruses.
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Affiliation(s)
- Edgar Rodríguez-Negrete
- Area de Genética, Instituto de Hortofruticultura Subtropical y Mediterránea 'La Mayora', Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Campus Teatinos, 29071, Málaga, Spain
| | - Rosa Lozano-Durán
- Area de Genética, Instituto de Hortofruticultura Subtropical y Mediterránea 'La Mayora', Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Campus Teatinos, 29071, Málaga, Spain
| | - Alvaro Piedra-Aguilera
- Area de Genética, Instituto de Hortofruticultura Subtropical y Mediterránea 'La Mayora', Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Campus Teatinos, 29071, Málaga, Spain
| | - Lucia Cruzado
- Area de Genética, Instituto de Hortofruticultura Subtropical y Mediterránea 'La Mayora', Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Campus Teatinos, 29071, Málaga, Spain
| | - Eduardo R Bejarano
- Area de Genética, Instituto de Hortofruticultura Subtropical y Mediterránea 'La Mayora', Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Campus Teatinos, 29071, Málaga, Spain
| | - Araceli G Castillo
- Area de Genética, Instituto de Hortofruticultura Subtropical y Mediterránea 'La Mayora', Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Campus Teatinos, 29071, Málaga, Spain
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Muñoz-Centeno MC, Martín-Guevara C, Flores A, Pérez-Pulido AJ, Antúnez-Rodríguez C, Castillo AG, Sanchez-Durán M, Mier P, Bejarano ER. Mpg2 interacts and cooperates with Mpg1 to maintain yeast glycosylation. FEMS Yeast Res 2012; 12:511-20. [PMID: 22416758 DOI: 10.1111/j.1567-1364.2012.00801.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Revised: 02/10/2012] [Accepted: 03/05/2012] [Indexed: 12/01/2022] Open
Abstract
Using a yeast two-hybrid screen, we isolated a gene from Schizosaccharomyces pombe, whose product interacts with Mpg1, a GDP-mannose-1-phosphate guanylyltransferase involved in the maintenance of cell wall integrity and glycosylation. We have designated this gene mpg2 based on its similarity to Mpg1. Mpg2 is evolutionarily conserved in higher eukaryotes. In the absence of Mpg2, defects in cell growth and sensitivity to hygromycin B are observed. When mpg1 is depleted, the lack of mpg2 causes a synthetic enhancement of the growth defect, the sensitivity to hygromycin B and the cell cycle phenotype previously reported for mpg1 mutant. Finally, Mpg1 overexpression complements the Δmpg2 mutant phenotypes. Taken together, these results indicate that mpg1 and mpg2 function together in glycosylation and septum formation.
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Affiliation(s)
- M Cruz Muñoz-Centeno
- Instituto de Hortofruticultura Subtropical y Mediterránea La Mayora, Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Departamento de Biología Celular, Genética y Fisiología, Universidad de Málaga, Campus Teatinos, Málaga, Spain.
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23
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Lakhssassi N, Doblas VG, Rosado A, del Valle AE, Posé D, Jimenez AJ, Castillo AG, Valpuesta V, Borsani O, Botella MA. The Arabidopsis tetratricopeptide thioredoxin-like gene family is required for osmotic stress tolerance and male sporogenesis. Plant Physiol 2012; 158:1252-66. [PMID: 22232384 PMCID: PMC3291270 DOI: 10.1104/pp.111.188920] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2011] [Accepted: 01/06/2012] [Indexed: 05/23/2023]
Abstract
TETRATRICOPEPTIDE THIOREDOXIN-LIKE (TTL) proteins are characterized by the presence of six tetratricopeptide repeats in conserved positions and a carboxyl-terminal region known as the thioredoxin-like domain with homology to thioredoxins. In Arabidopsis (Arabidopsis thaliana), the TTL gene family is composed by four members, and the founder member, TTL1, is required for osmotic stress tolerance. Analysis of sequenced genomes indicates that TTL genes are specific to land plants. In this study, we report the expression profiles of Arabidopsis TTL genes using data mining and promoter-reporter β-glucuronidase fusions. Our results show that TTL1, TTL3, and TTL4 display ubiquitous expression in normal growing conditions but differential expression patterns in response to osmotic and NaCl stresses. TTL2 shows a very different expression pattern, being specific to pollen grains. Consistent with the expression data, ttl1, ttl3, and ttl4 mutants show reduced root growth under osmotic stress, and the analysis of double and triple mutants indicates that TTL1, TTL3, and TTL4 have partially overlapping yet specific functions in abiotic stress tolerance while TTL2 is involved in male gametophytic transmission.
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MESH Headings
- Adaptation, Physiological
- Arabidopsis/drug effects
- Arabidopsis/genetics
- Arabidopsis/metabolism
- Arabidopsis/physiology
- Arabidopsis Proteins/classification
- Arabidopsis Proteins/genetics
- Arabidopsis Proteins/metabolism
- Computational Biology
- Data Mining
- Gene Expression Profiling
- Gene Expression Regulation, Plant
- Genes, Plant
- Genes, Reporter
- Glucuronidase/genetics
- Glucuronidase/metabolism
- Multigene Family
- Mutation
- Phylogeny
- Plant Roots/genetics
- Plant Roots/metabolism
- Plant Roots/physiology
- Plants, Genetically Modified/drug effects
- Plants, Genetically Modified/genetics
- Plants, Genetically Modified/metabolism
- Plants, Genetically Modified/physiology
- Pollen/genetics
- Pollen/metabolism
- Pollen/physiology
- Promoter Regions, Genetic
- Recombinant Fusion Proteins/genetics
- Recombinant Fusion Proteins/metabolism
- Sodium Chloride/pharmacology
- Stress, Physiological
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24
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Choi ES, Strålfors A, Castillo AG, Durand-Dubief M, Ekwall K, Allshire RC. Identification of noncoding transcripts from within CENP-A chromatin at fission yeast centromeres. J Biol Chem 2011; 286:23600-7. [PMID: 21531710 PMCID: PMC3123123 DOI: 10.1074/jbc.m111.228510] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The histone H3 variant CENP-A is the most favored candidate for an epigenetic mark that specifies the centromere. In fission yeast, adjacent heterochromatin can direct CENP-ACnp1 chromatin establishment, but the underlying features governing where CENP-ACnp1 chromatin assembles are unknown. We show that, in addition to centromeric regions, a low level of CENP-ACnp1 associates with gene promoters where histone H3 is depleted by the activity of the Hrp1Chd1 chromatin-remodeling factor. Moreover, we demonstrate that noncoding RNAs are transcribed by RNA polymerase II (RNAPII) from CENP-ACnp1 chromatin at centromeres. These analyses reveal a similarity between centromeres and a subset of RNAPII genes and suggest a role for remodeling at RNAPII promoters within centromeres that influences the replacement of histone H3 with CENP-ACnp1.
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Affiliation(s)
- Eun Shik Choi
- Wellcome Trust Centre for Cell Biology and Institute of Cell Biology, The University of Edinburgh, Edinburgh EH9 3JR, Scotland, United Kingdom
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25
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Pidoux AL, Choi ES, Abbott JKR, Liu X, Kagansky A, Castillo AG, Hamilton GL, Richardson W, Rappsilber J, He X, Allshire RC. Fission yeast Scm3: A CENP-A receptor required for integrity of subkinetochore chromatin. Mol Cell 2009; 33:299-311. [PMID: 19217404 PMCID: PMC2697330 DOI: 10.1016/j.molcel.2009.01.019] [Citation(s) in RCA: 144] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2008] [Revised: 12/23/2008] [Accepted: 01/27/2009] [Indexed: 11/13/2022]
Abstract
The mechanisms ensuring specific incorporation of CENP-A at centromeres are poorly understood. Mis16 and Mis18 are required for CENP-A localization at centromeres and form a complex that is conserved from fission yeast to human. Fission yeast sim1 mutants that alleviate kinetochore domain silencing are defective in Scm3Sp, the ortholog of budding yeast Scm3Sc. Scm3Sp depends on Mis16/18 for its centromere localization and like them is recruited to centromeres in late anaphase. Importantly, Scm3Sp coaffinity purifies with CENP-ACnp1 and associates with CENP-ACnp1 in vitro, yet localizes independently of intact CENP-ACnp1 chromatin and is differentially released from chromatin. While Scm3Sc has been proposed to form a unique hexameric nucleosome with CENP-ACse4 and histone H4 at budding yeast point centromeres, we favor a model in which Scm3Sp acts as a CENP-ACnp1 receptor/assembly factor, cooperating with Mis16 and Mis18 to receive CENP-ACnp1 from the Sim3 escort and mediate assembly of CENP-ACnp1 into subkinetochore chromatin.
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Affiliation(s)
- Alison L Pidoux
- Wellcome Trust Centre for Cell Biology and Institute of Cell Biology, School of Biological Sciences, The University of Edinburgh, 6.34 Swann Building, Edinburgh EH93JR, Scotland, UK.
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26
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Castillo AG, Mellone BG, Partridge JF, Richardson W, Hamilton GL, Allshire RC, Pidoux AL. Plasticity of fission yeast CENP-A chromatin driven by relative levels of histone H3 and H4. PLoS Genet 2007; 3:e121. [PMID: 17677001 PMCID: PMC1934396 DOI: 10.1371/journal.pgen.0030121] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2007] [Accepted: 06/07/2007] [Indexed: 01/27/2023] Open
Abstract
The histone H3 variant CENP-A assembles into chromatin exclusively at centromeres. The process of CENP-A chromatin assembly is epigenetically regulated. Fission yeast centromeres are composed of a central kinetochore domain on which CENP-A chromatin is assembled, and this is flanked by heterochromatin. Marker genes are silenced when placed within kinetochore or heterochromatin domains. It is not known if fission yeast CENP-A(Cnp1) chromatin is confined to specific sequences or whether histone H3 is actively excluded. Here, we show that fission yeast CENP-A(Cnp1) can assemble on noncentromeric DNA when it is inserted within the central kinetochore domain, suggesting that in fission yeast CENP-A(Cnp1) chromatin assembly is driven by the context of a sequence rather than the underlying DNA sequence itself. Silencing in the central domain is correlated with the amount of CENP-A(Cnp1) associated with the marker gene and is also affected by the relative level of histone H3. Our analyses indicate that kinetochore integrity is dependent on maintaining the normal ratio of H3 and H4. Excess H3 competes with CENP-A(Cnp1) for assembly into central domain chromatin, resulting in less CENP-A(Cnp1) and other kinetochore proteins at centromeres causing defective kinetochore function, which is manifest as aberrant mitotic chromosome segregation. Alterations in the levels of H3 relative to H4 and CENP-A(Cnp1) influence the extent of DNA at centromeres that is packaged in CENP-A(Cnp1) chromatin and the composition of this chromatin. Thus, CENP-A(Cnp1) chromatin assembly in fission yeast exhibits plasticity with respect to the underlying sequences and is sensitive to the levels of CENP-A(Cnp1) and other core histones.
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Affiliation(s)
- Araceli G Castillo
- Wellcome Trust Centre for Cell Biology, University of Edinburgh, Edinburgh, United Kingdom
| | - Barbara G Mellone
- Wellcome Trust Centre for Cell Biology, University of Edinburgh, Edinburgh, United Kingdom
| | - Janet F Partridge
- Wellcome Trust Centre for Cell Biology, University of Edinburgh, Edinburgh, United Kingdom
| | - William Richardson
- Wellcome Trust Centre for Cell Biology, University of Edinburgh, Edinburgh, United Kingdom
| | - Georgina L Hamilton
- Wellcome Trust Centre for Cell Biology, University of Edinburgh, Edinburgh, United Kingdom
| | - Robin C Allshire
- Wellcome Trust Centre for Cell Biology, University of Edinburgh, Edinburgh, United Kingdom
- * To whom correspondence should be addressed. E-mail:
| | - Alison L Pidoux
- Wellcome Trust Centre for Cell Biology, University of Edinburgh, Edinburgh, United Kingdom
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27
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Morilla G, Castillo AG, Preiss W, Jeske H, Bejarano ER. A versatile transreplication-based system to identify cellular proteins involved in geminivirus replication. J Virol 2006; 80:3624-33. [PMID: 16537630 PMCID: PMC1440397 DOI: 10.1128/jvi.80.7.3624-3633.2006] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2005] [Accepted: 12/17/2005] [Indexed: 01/18/2023] Open
Abstract
A versatile green fluorescent protein (GFP) expression cassette containing the replication origins of the monopartite begomovirus Tomato yellow leaf curl Sardinia virus (TYLCSV) is described. Transgenic Nicotiana benthamiana plants containing one copy of the cassette stably integrated into their genome were superinfected with TYLCSV, which mobilized and replicated the cassette as an episomal replicon. The expression of the reporter gene (the GFP gene) was thereby modified. Whereas GFP fluorescence was dimmed in the intercostal areas, an increase of green fluorescence in veins of all leaves placed above the inoculation site, as well as in transport tissues of roots and stems, was observed. The release of episomal trans replicons from the transgene and the increase in GFP expression were dependent on the cognate geminiviral replication-associated protein (Rep) and required interaction between Rep and the intergenic region of TYLCSV. This expression system is able to monitor the replication status of TYLCSV in plants, as induction of GFP expression is only produced in those tissues where Rep is present. To further confirm this notion, the expression of a host factor required for geminivirus replication, the proliferating cellular nuclear antigen (PCNA) was transiently silenced. Inhibition of PCNA prevented GFP induction in veins and reduced viral DNA. We propose that these plants could be widely used to easily identify host factors required for geminivirus replication by virus-induced gene silencing.
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Affiliation(s)
- Gabriel Morilla
- Unidad de Genética, Departamento de Biología Celular, Genética, y Fisiología, Universidad de Málaga, 29071 Málaga, Spain
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28
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Castillo AG, Kong LJ, Hanley-Bowdoin L, Bejarano ER. Interaction between a geminivirus replication protein and the plant sumoylation system. J Virol 2004; 78:2758-69. [PMID: 14990696 PMCID: PMC353736 DOI: 10.1128/jvi.78.6.2758-2769.2004] [Citation(s) in RCA: 98] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2003] [Accepted: 11/14/2003] [Indexed: 02/07/2023] Open
Abstract
Geminiviruses are small DNA viruses that replicate in nuclei of infected plant cells after accumulation of host replication machinery. Tomato golden mosaic virus (TGMV) and Tomato yellow leaf curl Sardinia virus (TYLCSV) encode a protein, RepAC1 (or Rep), that is essential for viral replication. Rep/RepAC1 is an oligomeric protein that binds to double-stranded DNA, catalyzes cleavage and ligation of single-stranded DNA, and is sufficient for host induction. It also interacts with several host proteins, including the cell cycle regulator, retinoblastoma, and essential components of the cell DNA replication machinery, like proliferating nuclear cell antigen (PCNA) and RFC-1. To identify other cellular proteins that interact with Rep/RepAC1 protein, a Nicotiana benthamiana cDNA library was screened with a yeast two-hybrid assay. The host cell sumoylation enzyme, NbSCE1 (N. benthamiana SUMO-conjugating enzyme, homolog to Saccharomyces cerevisiae UBC9), was found to interact specifically with RepAC1. Mapping studies localized the interaction to the N-terminal half of RepAC1. Effects on geminivirus replication were observed in transgenic plants with altered levels of SUMO, the substrate for UBC9.
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Affiliation(s)
- A G Castillo
- Department of Cellular Biology, Genetics and Animal Physiology, Málaga University, Málaga 29071, Spain
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29
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Castillo AG, Collinet D, Deret S, Kashoggi A, Bejarano ER. Dual interaction of plant PCNA with geminivirus replication accessory protein (Ren) and viral replication protein (Rep). Virology 2003; 312:381-94. [PMID: 12919743 DOI: 10.1016/s0042-6822(03)00234-4] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Geminiviruses replicate their small, single-stranded DNA genomes in plant nuclei using host replication machinery. Similar to most dicotyledonous plant-infecting geminiviruses, Tomato yellow leaf curl Sardinia virus (TYLCSV) encodes a protein, REn, that enhances viral DNA accumulation through an unknown mechanism. Earlier studies showed that REn protein from another geminivirus, Tomato golden mosaic virus (TGMV), forms oligomers and interacts with Rep protein, the only viral protein essential for replication. It has been shown that both proteins from TGMV also interact with a plant homolog of the mammalian tumor suppressor retinoblastoma protein (RBR). By using yeast two-hybrid technology and the TYLCSV REn protein as bait, we have isolated three clones of the proliferating cell nuclear antigen (PCNA) of Arabidopsis thaliana, a ring-shaped protein that encircles DNA and plays an essential role in eukaryotic chromosomal DNA replication. We also demonstrate by the two-hybrid system and a pull-down assay that REn interacts with tomato PCNA (LePCNA). Analysis of truncated proteins has located the REn-binding domain of LePCNA between amino acids 132 and 187, whereas all REn deletions used abolished or decreased dramatically its ability to interact with PCNA. Tomato PCNA also interacts with TYLCSV Rep. We propose that the interaction between PCNA and REn/Rep takes place during virus infection, inducing the assembly of the plant replication complex (replisome) close to the virus origin of replication.
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Affiliation(s)
- Araceli G Castillo
- Department of Cellular Biology, Genetics, and Animal Physiology, Málaga University, Málaga 29071, Spain
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30
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Lucioli A, Noris E, Brunetti A, Tavazza R, Ruzza V, Castillo AG, Bejarano ER, Accotto GP, Tavazza M. Tomato yellow leaf curl Sardinia virus rep-derived resistance to homologous and heterologous geminiviruses occurs by different mechanisms and is overcome if virus-mediated transgene silencing is activated. J Virol 2003; 77:6785-98. [PMID: 12767999 PMCID: PMC156158 DOI: 10.1128/jvi.77.12.6785-6798.2003] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2003] [Accepted: 03/19/2003] [Indexed: 11/20/2022] Open
Abstract
The replication-associated protein (Rep) of geminiviruses is involved in several biological processes brought about by the presence of distinct functional domains. Recently, we have exploited the multifunctional character of the Tomato yellow leaf curl Sardinia virus (TYLCSV) Rep to develop a molecular interference strategy to impair TYLCSV infection. We showed that transgenic expression of its N-terminal 210 amino acids (Rep-210) confers resistance to the homologous virus by inhibiting viral transcription and replication. We have now used biochemical and transgenic approaches to carry out a fuller investigation of the molecular resistance mechanisms in transgenic plants expressing Rep-210. We show that Rep-210 confers resistance through two distinct molecular mechanisms, depending on the challenging virus. Resistance to the homologous virus is achieved by the ability of Rep-210 to tightly inhibit C1 gene transcription, while that to heterologous virus is due to the interacting property of the Rep-210 oligomerization domain. Furthermore, we present evidence that in Rep-210-expressing plants, the duration of resistance is related to the ability of the challenging virus to shut off transgene expression by a posttranscriptional homology-dependent gene silencing mechanism. A model of Rep-210-mediated geminivirus resistance that takes transgene- and virus-mediated mechanisms into account is proposed.
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