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Proteomic insights into the effect of Broad bean wilt virus-1 infection in Nicotiana benthamiana plants

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Abstract

Broad bean wilt virus 1 (BBWV-1, genus Fabavirus, family Secoviridae) infects many plants species, including important horticultural crops. Since some tobacco plants such as Nicotiana benthamiana, are susceptible to many viruses, they are used as experimental hosts and therefore abundant information about these species is available in databases. Here, the protein differential expression in N. benthamiana plants infected with BBWV-1 was studied using Liquid Chromatography coupled with Mass Spectrometry in tandem analysis (LC–MS/MS). Also, we studied the role of viral VP37 protein which is a BBWV-1 determinant of pathogenicity in the accumulation of the host proteins. For this purpose, we agroinfiltrated N. benthamiana plants with two BBWV-1 cDNA infectious clones: pBBWV1-Wt wilt type and the pBBWV1-G492C mutant knocking out for the viral VP37 protein. Virus infection induced the differential expression of 44 host proteins: 22 were overexpressed and the other 22 were underexpressed. These proteins were involved in important plant processes and located in different cell organelles, mainly in chloroplasts. Finally, 24 of these proteins were expressed differentially according to the presence of VP37 protein. Relation among host proteins that were differentially expressed, plant symptoms, and subcellular alterations are discussed.

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Acknowledgements

We thank Dr. Leonardo Velasco for the critical review of the manuscript. Proteomic and biostatistical analysis were conducted by the proteomics unit of the Universitat de València.

Funding

This research work was supported by funds of the Instituto Valenciano de Investigaciones Agrarias, Valencia, Spain (PROY-IVIA-2013/14 n 5426). C. Carpino was a recipient of predoctoral fellowships from the Italian government.

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C. Carpino and L. Elvira-González prepared the plant material for proteomic analysis. L. Elvira-González is responsible of the experimental analysis and the manuscript writing. L. Galipienso conducted the experimental design, the manuscript revision and edition. Luis Rubio participated in the manuscript revision and edition.

Corresponding author

Correspondence to Luis Galipienso Torregrosa.

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The authors declare no competing interests.

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Elvira-González, L., Carpino, C., Rubio, L. et al. Proteomic insights into the effect of Broad bean wilt virus-1 infection in Nicotiana benthamiana plants. Eur J Plant Pathol (2023). https://doi.org/10.1007/s10658-023-02802-z

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  • DOI: https://doi.org/10.1007/s10658-023-02802-z

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