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DeBlasio SL, Wilson JR, Tamborindeguy C, Johnson RS, Pinheiro PV, MacCoss MJ, Gray SM, Heck M. Affinity Purification-Mass Spectrometry Identifies a Novel Interaction between a Polerovirus and a Conserved Innate Immunity Aphid Protein that Regulates Transmission Efficiency. J Proteome Res 2021; 20:3365-3387. [PMID: 34019426 DOI: 10.1021/acs.jproteome.1c00313] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The vast majority of plant viruses are transmitted by insect vectors, with many crucial aspects of the transmission process being mediated by key protein-protein interactions. Still, very few vector proteins interacting with viruses have been identified and functionally characterized. Potato leafroll virus (PLRV) is transmitted most efficiently by Myzus persicae, the green peach aphid, in a circulative, non-propagative manner. Using affinity purification coupled to high-resolution mass spectrometry (AP-MS), we identified 11 proteins from M. persicaedisplaying a high probability of interaction with PLRV and an additional 23 vector proteins with medium confidence interaction scores. Three of these aphid proteins were confirmed to directly interact with the structural proteins of PLRV and other luteovirid species via yeast two-hybrid. Immunolocalization of one of these direct PLRV-interacting proteins, an orthologue of the human innate immunity protein complement component 1 Q subcomponent-binding protein (C1QBP), shows that MpC1QBP partially co-localizes with PLRV in cytoplasmic puncta and along the periphery of aphid gut epithelial cells. Artificial diet delivery to aphids of a chemical inhibitor of C1QBP leads to increased PLRV acquisition by aphids and subsequently increased titer in inoculated plants, supporting a role for C1QBP in the acquisition and transmission efficiency of PLRV by M. persicae. This study presents the first use of AP-MS for the in vivo isolation of a functionally relevant insect vector-virus protein complex. MS data are available from ProteomeXchange.org using the project identifier PXD022167.
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Affiliation(s)
- Stacy L DeBlasio
- Emerging Pests and Pathogens Research Unit, USDA Agricultural Research Service, Ithaca, New York 14853, United States.,Boyce Thompson Institute for Plant Research, Ithaca, New York 14853, United States
| | - Jennifer R Wilson
- Boyce Thompson Institute for Plant Research, Ithaca, New York 14853, United States.,Section of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, New York 14853, United States
| | - Cecilia Tamborindeguy
- Section of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, New York 14853, United States
| | - Richard S Johnson
- Department of Genome Sciences, University of Washington, Seattle, Washington 98109, United States
| | - Patricia V Pinheiro
- Boyce Thompson Institute for Plant Research, Ithaca, New York 14853, United States.,Section of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, New York 14853, United States
| | - Michael J MacCoss
- Department of Genome Sciences, University of Washington, Seattle, Washington 98109, United States
| | - Stewart M Gray
- Emerging Pests and Pathogens Research Unit, USDA Agricultural Research Service, Ithaca, New York 14853, United States.,Section of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, New York 14853, United States
| | - Michelle Heck
- Emerging Pests and Pathogens Research Unit, USDA Agricultural Research Service, Ithaca, New York 14853, United States.,Boyce Thompson Institute for Plant Research, Ithaca, New York 14853, United States.,Section of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, New York 14853, United States
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Pinheiro PV, Ghanim M, Alexander M, Rebelo AR, Santos RS, Orsburn BC, Gray S, Cilia M. Host Plants Indirectly Influence Plant Virus Transmission by Altering Gut Cysteine Protease Activity of Aphid Vectors. Mol Cell Proteomics 2016; 16:S230-S243. [PMID: 27932519 DOI: 10.1074/mcp.m116.063495] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 11/29/2016] [Indexed: 11/06/2022] Open
Abstract
The green peach aphid, Myzus persicae, is a vector of the Potato leafroll virus (PLRV, Luteoviridae), transmitted exclusively by aphids in a circulative manner. PLRV transmission efficiency was significantly reduced when a clonal lineage of M. persicae was reared on turnip as compared with the weed physalis, and this was a transient effect caused by a host-switch response. A trend of higher PLRV titer in physalis-reared aphids as compared with turnip-reared aphids was observed at 24 h and 72 h after virus acquisition. The major difference in the proteomes of these aphids was the up-regulation of predicted lysosomal enzymes, in particular the cysteine protease cathepsin B (cathB), in aphids reared on turnip. The aphid midgut is the site of PLRV acquisition, and cathB and PLRV localization were starkly different in midguts of the aphids reared on the two host plants. In viruliferous aphids that were reared on turnip, there was near complete colocalization of cathB and PLRV at the cell membranes, which was not observed in physalis-reared aphids. Chemical inhibition of cathB restored the ability of aphids reared on turnip to transmit PLRV in a dose-dependent manner, showing that the increased activity of cathB and other cysteine proteases at the cell membrane indirectly decreased virus transmission by aphids. Understanding how the host plant influences virus transmission by aphids is critical for growers to manage the spread of virus among field crops.
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Affiliation(s)
- Patricia V Pinheiro
- From the ‡Department of Entomology, Cornell University, Ithaca, New York 14853.,§Boyce Thompson Institute for Plant Research, Ithaca, New York 14853.,¶Embrapa Rice and Beans, Santo Antônio de Goiás 171, Brazil
| | - Murad Ghanim
- ‖Department of Entomology, Volcani Center, Bet Dagan 5025001, Israel
| | - Mariko Alexander
- **Plant Pathology and Plant Microbe Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, New York
| | - Ana Rita Rebelo
- §Boyce Thompson Institute for Plant Research, Ithaca, New York 14853
| | - Rogerio S Santos
- §Boyce Thompson Institute for Plant Research, Ithaca, New York 14853
| | | | - Stewart Gray
- **Plant Pathology and Plant Microbe Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, New York.,§§USDA Agricultural Research Service, Emerging Pests and Pathogens Research Unit, Robert W. Holley Center for Agriculture and Health, Ithaca, New York
| | - Michelle Cilia
- From the ‡Department of Entomology, Cornell University, Ithaca, New York 14853; .,**Plant Pathology and Plant Microbe Biology Section, School of Integrative Plant Science, Cornell University, Ithaca, New York.,§§USDA Agricultural Research Service, Emerging Pests and Pathogens Research Unit, Robert W. Holley Center for Agriculture and Health, Ithaca, New York
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Pinheiro PV, Kliot A, Ghanim M, Cilia M. Is there a role for symbiotic bacteria in plant virus transmission by insects? Curr Opin Insect Sci 2015; 8:69-78. [PMID: 32846684 DOI: 10.1016/j.cois.2015.01.010] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2014] [Revised: 01/14/2015] [Accepted: 01/14/2015] [Indexed: 06/11/2023]
Abstract
During the process of circulative plant virus transmission by insect vectors, viruses interact with different insect vector tissues prior to transmission to a new host plant. An area of intense debate in the field is whether bacterial symbionts of insect vectors are involved in the virus transmission process. We critically review the literature in this area and present a simple model that can be used to quantitatively settle the debate. The simple model determines whether the symbiont is involved in virus transmission and determines what fraction of the pathogen transmission phenotype is contributed by the symbiont. The model is general and can be applied to any vector-pathogen-symbiont interactions.
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Affiliation(s)
- Patricia V Pinheiro
- Department of Entomology, Cornell University, Ithaca, NY 14853, United States; Boyce Thompson Institute for Plant Research, Ithaca, NY 14853, United States; Embrapa Rice and Beans, Santo Antônio de Goiás 75375-000, Brazil
| | - Adi Kliot
- Boyce Thompson Institute for Plant Research, Ithaca, NY 14853, United States; Department of Entomology, Volcani Center, Bet Dagan 50250, Israel
| | - Murad Ghanim
- Department of Entomology, Volcani Center, Bet Dagan 50250, Israel
| | - Michelle Cilia
- Boyce Thompson Institute for Plant Research, Ithaca, NY 14853, United States; Department of Plant Pathology and Plant-Microbe Biology, Cornell University, Ithaca, NY 14853, United States; Agricultural Research Service, Biological Integrated Pest Management Research Unit, Ithaca, NY 14853, United States.
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