Viral Diseases of Rice

Abbas, Mubashir; Shafiq, M.; Khaliq, Robina; Arshad, Hibba; Haroon, Rajia; Haider, Muhammad Saleem

doi:10.1007/978-981-19-3120-8_3

Cited by 1 publication

(1 citation statement)

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“…However, rice production and yield are seriously threatened by viral diseases. Over 30 rice viruses have been reported, and 25 viruses pose a direct economic threat to rice production (Abbas et al ., 2022 ). These viruses are mainly transmitted by insect vectors, such as rice stripe virus (RSV), southern rice black‐streaked dwarf virus (SRBSDV), rice black‐streaked dwarf virus (RBSDV), rice ragged stunt virus (RRSV), rice grassy stunt virus (RGSV), rice dwarf virus (RDV) and rice gall dwarf virus (RGDV), which are transmitted by planthoppers and leafhoppers.…”

Section: Introductionmentioning

confidence: 99%

Plasmodesmata‐associated Flotillin positively regulates broad‐spectrum virus cell‐to‐cell trafficking

Ge,

Lu,

Wang

et al. 2023

Plant Biotechnology Journal

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SummaryViral diseases seriously threaten rice production. Plasmodesmata (PD)‐associated proteins are deemed to play a key role in viral infection in host plants. However, few PD‐associated proteins have been discovered in rice to afford viral infection. Here, inspired by the infection mechanism in insect vectors, we identified a member of the Flotillin family taking part in the cell‐to‐cell transport of rice stripe virus (RSV) in rice. Flotillin1 interacted with RSV nucleocapsid protein (NP) and was localized on PD. In flotillin1 knockout mutant rice, which displayed normal growth, RSV intercellular movement was retarded, leading to significantly decreased disease incidence. The PD pore sizes of the mutant rice were smaller than those of the wild type due to more callose deposits, which was closely related to the upregulation of two callose synthase genes. RSV infection stimulated flotillin1 expression and enlarged the PD aperture via RSV NP. In addition, flotillin1 knockout decreased disease incidences of southern rice black‐streaked dwarf virus (SRBSDV) and rice dwarf virus (RDV) in rice. Overall, our study reveals a new PD‐associated protein facilitating virus cell‐to‐cell trafficking and presents the potential of flotillin1 as a target to produce broad‐spectrum antiviral rice resources in the future.

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Section: Introductionmentioning

confidence: 99%