Resistance genes on the verge of plant-virus interaction.

Susmita Sett, Ashish Prasad, Manoj Prasad

Trends in plant science 2022 Dec

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Viruses are acellular pathogens that cause severe infections in plants, resulting in worldwide crop losses every year. The lack of chemical agents to control viral diseases exacerbates the situation. Thus, to devise proper management strategies, it is important that the defense mechanisms of plants against viruses are understood. Resistance (R) genes regulate plant defense against invading pathogens by eliciting a hypersensitive response (HR). Compatible interaction between plant R gene and viral avirulence (Avr) protein activates the necrotic cell death response at the site of infection, resulting in the cessation of disease. Here, we review different aspects of R gene-mediated dominant resistance against plant viruses in dicotyledonous plants and possible ways for developing crops with better disease resistance. Copyright © 2022 Elsevier Ltd. All rights reserved.

Citation

Susmita Sett, Ashish Prasad, Manoj Prasad. Resistance genes on the verge of plant-virus interaction. Trends in plant science. 2022 Dec;27(12):1242-1252