ArticleViruses2023
Movement Protein Mediates Systemic Necrosis in Tomato Plants with Infection of Tomato Mosaic Virus.
Article in Viruses, 2023. 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, 7 citations in OpenAlex.
- Plant growth-promoting bacteria enhance tomato tolerance against tomato spotted wilt virus by unveiling optimal auxin levels.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2026Article
- Elucidating long non-coding RNA networks in tomato plants in response to Funneliformis mosseae colonization and cucumber mosaic virus infection.BMC plant biology · 2025Article
- Systemic infection of cowpea aphid-borne mosaic virus in Passiflora spp. occurs at the initial stage regardless of the species' resistance.Archives of virology · 2025Article
- Role of Plant Virus Movement Proteins in Suppression of Host RNAi Defense.International journal of molecular sciences · 2023Review
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The necrogenic strain N5 of tomato mosaic virus (ToMV-N5) causes systemic necrosis in tomato cultivar Hezuo903. In this work, we mapped the viral determinant responsible for the induction of systemic necrosis. By exchanging viral genes between N5 and a non-necrogenic strain S1, we found that movement protein (MP) was the determinant for the differential symptoms caused by both strains. Compared with S1 MP, N5 MP had an additional ability to increase virus accumulation, which was not due to its functions in viral cell-to-cell movement. Actually, N5 MP, but not S1 MP, was a weak RNA silencing suppressor, which assisted viral accumulation. Sequence alignment showed that both MPs differed by only three amino acid residues. Experiments with viruses having mutated MPs indicated that the residue isoleucine at position 170 in MP was the key site for MP to increase virus accumulation, but also was required for MP to induce systemic necrosis in virus-infected tomato plants. Collectively, the lethal necrosis caused by N5 is dependent on its MP protein that enhances virus accumulation via its RNA silencing suppressor activity, probably leading to systemic necrosis responses in tomato plants.
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