ArticleMolecular plant pathology2012
Amino acids in Tobamovirus coat protein controlling pepper L(1a) gene-mediated resistance.
Article in Molecular plant pathology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 14 citations in OpenAlex.
- Competition for Chaperones: A Trade-Off Between Thermotolerance and Antiviral Immunity in Plants.Current issues in molecular biology · 2025Review
- Plant Immunity against Tobamoviruses.Viruses · 2024Review
- Thirty years of resistance: Zig-zag through the plant immune system.The Plant cell · 2022Review
- Functional characterization of the mutations in Pepper mild mottle virus overcoming tomato tm-1-mediated resistance.Molecular plant pathology · 2014Article
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Authors and funding
10 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In pepper plants (genus Capsicum), the resistance against Tobamovirus spp. is conferred by L gene alleles. The recently identified L variant L(1a) can recognize coat proteins (CPs) of Tobacco mild green mosaic virus Japanese strain (TMGMV-J) and Paprika mild mottle virus Japanese strain (PaMMV-J), but not of Pepper mild mottle virus (PMMoV), as the elicitor to induce resistance at 24 °C. Interestingly, L(1a) gene-mediated resistance against TMGMV-J, but not PaMMV-J, is retained at 30 °C. This observation led us to speculate that L(1a) can discriminate between CPs of TMGMV-J and PaMMV-J. In this study, we aimed to determine the region(s) in CP by which L(1a) distinguishes TMGMV-J from PaMMV-J. By using chimeric CPs consisting of TMGMV-J and PaMMV-J, we found that the chimeric TMGMV-J CP, whose residues in the β-sheet domain were replaced by those of PaMMV-J, lost its ability to induce L(1a) gene-mediated resistance at 30 °C. In contrast, the chimeric PaMMV-J CP with the β-sheet domain replaced by TMGMV-J CP was able to induce L(1a) gene-mediated resistance at 30 °C. Furthermore, viral particles were not detected in the leaves inoculated with either chimeric virus. These observations indicated that the amino acids within the β-sheet domain were involved in both the induction of L(1a) gene-mediated resistance and virion formation. Further analyses using chimeric CPs of TMGMV-J and PMMoV indicated that amino acids within the β-sheet domain alone were not sufficient for the induction of L(1a) gene-mediated resistance by TMGMV-J CP. These results suggest that multiple regions in Tobamovirus CP are implicated in the induction of L(1a) gene-mediated resistance.
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