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Real N, Villar I, Serrano I, Guiu-Aragonés C, Martín-Hernández AM. Mutations in CmVPS41 controlling resistance to cucumber mosaic virus display specific subcellular localization. Plant Physiol 2023; 191:1596-1611. [PMID: 36527697 PMCID: PMC10022621 DOI: 10.1093/plphys/kiac583] [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: 08/30/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
Resistance to cucumber mosaic virus (CMV) in melon (Cucumis melo L.) has been described in several exotic accessions and is controlled by a recessive resistance gene, cmv1, that encodes a vacuolar protein sorting 41 (CmVPS41). cmv1 prevents systemic infection by restricting the virus to the bundle sheath cells, preventing viral phloem entry. CmVPS41 from different resistant accessions carries two causal mutations, either a G85E change, found in Pat-81 and Freeman's cucumber, or L348R, found in PI161375, cultivar Songwhan Charmi (SC). Here, we analyzed the subcellular localization of CmVPS41 in Nicotiana benthamiana and found differential structures in resistant and susceptible accessions. Susceptible accessions showed nuclear and membrane spots and many transvacuolar strands, whereas the resistant accessions showed many intravacuolar invaginations. These specific structures colocalized with late endosomes. Artificial CmVPS41 carrying individual mutations causing resistance in the genetic background of CmVPS41 from the susceptible variety Piel de Sapo (PS) revealed that the structure most correlated with resistance was the absence of transvacuolar strands. Coexpression of CmVPS41 with viral movement proteins, the determinant of virulence, did not change these localizations; however, infiltration of CmVPS41 from either SC or PS accessions in CMV-infected N. benthamiana leaves showed a localization pattern closer to each other, with up to 30% cells showing some membrane spots in the CmVPS41SC and fewer transvacuolar strands (reduced from a mean of 4 to 1-2) with CmVPS41PS. Our results suggest that the distribution of CmVPS41PS in late endosomes includes transvacuolar strands that facilitate CMV infection and that CmVPS41 re-localizes during viral infection.
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Affiliation(s)
- Núria Real
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, C/Vall Moronta, Edifici CRAG, Bellaterra (Cerdanyola del Vallés), 08193 Barcelona, Spain
| | - Irene Villar
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, C/Vall Moronta, Edifici CRAG, Bellaterra (Cerdanyola del Vallés), 08193 Barcelona, Spain
- Universidad de Zaragoza, Calle Pedro Cerbuna, 12, 50009 Zaragoza, Spain
| | - Irene Serrano
- Laboratoire des Interactions des Plantes et Microorganismes, CNRS, 31326 Toulouse, France
| | - Cèlia Guiu-Aragonés
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, C/Vall Moronta, Edifici CRAG, Bellaterra (Cerdanyola del Vallés), 08193 Barcelona, Spain
| | - Ana Montserrat Martín-Hernández
- Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, C/Vall Moronta, Edifici CRAG, Bellaterra (Cerdanyola del Vallés), 08193 Barcelona, Spain
- Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Edifici CRAG, C/ Vall Moronta, Bellaterra (Cerdanyola del Vallés), 08193 Barcelona, Spain
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Guiu-Aragonés C, Sánchez-Pina MA, Díaz-Pendón JA, Peña EJ, Heinlein M, Martín-Hernández AM. cmv1 is a gate for Cucumber mosaic virus transport from bundle sheath cells to phloem in melon. Mol Plant Pathol 2016; 17:973-84. [PMID: 26661733 PMCID: PMC6638449 DOI: 10.1111/mpp.12351] [Citation(s) in RCA: 8] [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] [Received: 10/23/2015] [Revised: 11/26/2015] [Accepted: 12/03/2015] [Indexed: 05/24/2023]
Abstract
Cucumber mosaic virus (CMV) has the broadest host range among plant viruses, causing enormous losses in agriculture. In melon, strains of subgroup II are unable to establish a systemic infection in the near-isogenic line SC12-1-99, which carries the recessive resistance gene cmv1 from the accession PI 161375, cultivar 'Songwhan Charmi'. Strains of subgroup I overcome cmv1 resistance in a manner dependent on the movement protein. We characterized the resistance conferred by cmv1 and established that CMV-LS (subgroup II) can move from cell to cell up to the veins in the inoculated leaf, but cannot enter the phloem. Immunogold labelling at transmission electron microscopy level showed that CMV-LS remains restricted to the bundle sheath (BS) cells in the resistant line, and does not invade vascular parenchyma or intermediary cells, whereas, in the susceptible line 'Piel de Sapo' (PS), the virus invades all vein cell types. These observations indicate that the resistant allele of cmv1 restricts systemic infection in a virus strain- and cell type-specific manner by acting as an important gatekeeper for virus progression from BS cells to phloem cells. Graft inoculation experiments showed that CMV-LS cannot move from the infected PS stock into the resistant cmv1 scion, thus suggesting an additional role for cmv1 related to CMV transport within or exit from the phloem. The characterization of this new form of recessive resistance, based on a restriction of virus systemic movement, opens up the possibility to design alternative approaches for breeding strategies in melon.
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Affiliation(s)
- Cèlia Guiu-Aragonés
- IRTA, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - María Amelia Sánchez-Pina
- Departamento de Biología del Estrés y Patología Vegetal CEBAS (CSIC), Campus Universitario de Espinardo, 30100, Murcia, Spain
| | - Juan Antonio Díaz-Pendón
- Instituto de Hortofruticultura Subtropical y Mediterránea 'La Mayora', Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Estación Experimental 'La Mayora', 29750, Algarrobo-Costa, Málaga, Spain
| | - Eduardo J Peña
- Institut de Biologie Moléculaire des Plantes, UPR 2357, Centre Nationale de la Recherche Scientifique, Strasbourg, 67084, France
| | - Manfred Heinlein
- Institut de Biologie Moléculaire des Plantes, UPR 2357, Centre Nationale de la Recherche Scientifique, Strasbourg, 67084, France
| | - Ana Montserrat Martín-Hernández
- IRTA, Centre for Research in Agricultural Genomics (CRAG), CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, Cerdanyola del Vallès, 08193, Barcelona, Spain
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Guiu-Aragonés C, Díaz-Pendón JA, Martín-Hernández AM. Four sequence positions of the movement protein of Cucumber mosaic virus determine the virulence against cmv1-mediated resistance in melon. Mol Plant Pathol 2015; 16:675-84. [PMID: 25470079 PMCID: PMC6638431 DOI: 10.1111/mpp.12225] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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: 05/05/2023]
Abstract
The resistance to a set of strains of Cucumber mosaic virus (CMV) in the melon accession PI 161375, cultivar 'Songwhan Charmi', is dependent on one recessive gene, cmv1, which confers total resistance, whereas a second set of strains is able to overcome it. We tested 11 strains of CMV subgroups I and II in the melon line SC12-1-99, which carries the gene cmv1, and showed that this gene confers resistance to strains of subgroup II only and that restriction is not related to either viral replication or cell-to-cell movement. This is the first time that a resistant trait has been correlated with CMV subgroups. Using infectious clones of the CMV strains LS (subgroup II) and FNY (subgroup I), we generated rearrangements and viral chimaeras between both strains and established that the determinant of virulence against the gene cmv1 resides in the first 209 amino acids of the movement protein, as this region from FNY is sufficient to confer virulence to the LS clone in the line SC12-1-99. A comparison of the sequences of the strains of both subgroups in this region shows that there are five main positions shared by all strains of subgroup II, which are different from those of subgroup I. Site-directed mutagenesis of the CMV-LS clone to substitute these residues for those of CMV-FNY revealed that a combination of four of these changes [the group 64-68 (SNNLL to HGRIA), and the point mutations R81C, G171T and A195I] was required for a complete gain of function of the LS MP in the resistant melon plant.
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Affiliation(s)
- Cèlia Guiu-Aragonés
- IRTA, Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - Juan Antonio Díaz-Pendón
- Instituto de Hortofruticultura Subtropical y Mediterránea 'La Mayora', Universidad de Málaga-Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Estación Experimental 'La Mayora', 29750, Algarrobo-Costa, Málaga, Spain
| | - Ana Montserrat Martín-Hernández
- IRTA, Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB, Edifici CRAG, Campus UAB, Cerdanyola del Vallès, 08193, Barcelona, Spain
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Vidigal P, Martin-Hernandez AM, Guiu-Aragonés C, Amâncio S, Carvalho L. Selective silencing of 2Cys and type-IIB Peroxiredoxins discloses their roles in cell redox state and stress signaling. J Integr Plant Biol 2015; 57:591-601. [PMID: 25319151 DOI: 10.1111/jipb.12296] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 10/08/2014] [Indexed: 05/12/2023]
Abstract
Peroxiredoxins (Prx) catalyse the reduction of hydrogen peroxide (H2O2) and, in association with catalases and other peroxidases, may participate in signal transduction by regulating intercellular H2O2 concentration that in turn can control gene transcription and cell signaling. Using virus-induced-gene-silencing (VIGS), 2-Cys Peroxiredoxin (2CysPrx) family and type-II Peroxiredoxin B (PrxIIB) gene were silenced in Nicotiana benthamiana, to study the impact that the loss of function of each Prx would have in the antioxidant system under control (22 °C) and severe heat stress conditions (48 °C). The results showed that both Prxs, although in different organelles, influence the regeneration of ascorbate to a significant extent, but with different purposes. 2CysPrx affects abscisic acid (ABA) biosynthesis through ascorbate, while PrxIIB does it probably through the xanthophyll cycle. Moreover, 2CysPrx is key in H2O2 scavenging and in consequence in the regulation of ABA signaling downstream of reactive oxygen species and PrxIIB provides an important assistance for H2O2 peroxisome scavenges.
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Affiliation(s)
- Patrícia Vidigal
- Departamento de Recursos Naturais, Ambiente e Território (DRAT)/Centro de Botânica Aplicada à Agricultura (CBAA), Institute of Agronomy, University of Lisbon, Tapada da Ajuda, 1349-017, Lisbon, Portugal
| | - Ana Montserrat Martin-Hernandez
- Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Centre for Research in Agricultural Genomics (CSIC-IRTA-UAB-UB) Campus Universitat Autonoma de Barcelona (UAB), Edificio Center for Research in Agricultural Genomics (CRAG), Bellaterra, Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - Cèlia Guiu-Aragonés
- Institut de Recerca i Tecnologia Agroalimentàries (IRTA), Centre for Research in Agricultural Genomics (CSIC-IRTA-UAB-UB) Campus Universitat Autonoma de Barcelona (UAB), Edificio Center for Research in Agricultural Genomics (CRAG), Bellaterra, Cerdanyola del Vallès, 08193, Barcelona, Spain
| | - Sara Amâncio
- Departamento de Recursos Naturais, Ambiente e Território (DRAT)/Centro de Botânica Aplicada à Agricultura (CBAA), Institute of Agronomy, University of Lisbon, Tapada da Ajuda, 1349-017, Lisbon, Portugal
| | - Luísa Carvalho
- Departamento de Recursos Naturais, Ambiente e Território (DRAT)/Centro de Botânica Aplicada à Agricultura (CBAA), Institute of Agronomy, University of Lisbon, Tapada da Ajuda, 1349-017, Lisbon, Portugal
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Jiménez N, Viñas M, Guiu-Aragonés C, Bayona JM, Albaigés J, Solanas AM. Polyphasic approach for assessing changes in an autochthonous marine bacterial community in the presence of Prestige fuel oil and its biodegradation potential. Appl Microbiol Biotechnol 2011; 91:823-34. [DOI: 10.1007/s00253-011-3321-4] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Revised: 04/05/2011] [Accepted: 04/10/2011] [Indexed: 11/29/2022]
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