Abstract
Viruses belonging to the family Geminiviridae infect plants and are responsible for a number of diseases of crops in the tropical and sub-tropical regions of the World. The innate immune response of the plant assists in its defense against such viral pathogens by the recognition of pathogen/microbe-associated molecular patterns through pattern-recognition receptors. Phytohormone signalling pathways play a vital role in plant defense responses against these devastating viruses. Geminiviruses, however, have developed counter-defense strategies that prevail over the above defense pathways. The proteins encoded by geminiviruses act as suppressors of plant immunity by interacting with the signalling components of several hormones. In this review we focus on the molecular interplay of phytohormone pathways and geminiviral infection and try to find interesting parallels with similar mechanisms known in other plant-infecting viruses and strengthen the argument that this interplay is necessary for disease development.
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Acknowledgements
The authors acknowledge the financial assistance received from J. C. Bose Fellowship, Science and Engineering Research Board, Government of India to ID (SB/S2/JCB-057/2016). KG acknowledges the fellowship from the Department of Science and Technology (DST), Government of India under Innovation in Science Pursuit for Inspired Research (INSPIRE; grant number DST/INSPIRE Fellowship/2015/IF150761) Faculty Research Program Grant under IoE, University of Delhi.
Funding
F.unding was received from J. C. Bose Fellowship, Science and Engineering Research Board, Government of India to ID (SB/S2/JCB-057/2016), Faculty Research Program Grant under IoE, University of Delhi and the Fellowship from the Department of Science and Technology, Government of India under Innovation in Science Pursuit for Inspired Research (INSPIRE; grant number DST/INSPIRE Fellowship/2015/IF150761) to KG.
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KG, RR and ID conceptualized the review; KG and RR performed the data analysis and prepared the original draft of the manuscript; ID edited the manuscript and arranged the funding.
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Gupta, K., Rishishwar, R. & Dasgupta, I. The interplay of plant hormonal pathways and geminiviral proteins: partners in disease development. Virus Genes 58, 1–14 (2022). https://doi.org/10.1007/s11262-021-01881-6
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DOI: https://doi.org/10.1007/s11262-021-01881-6