Transmission by a vector is a common feature among viruses, especially plant viruses. While animal arboviruses infect literally their vector ("biological transmission"), plant viruses are mostly transmitted "mechanically". This mode of transmission is seemingly quite simple - the virus contaminates the vector mouthparts and subsequently is mechanically inoculated into new healthy hosts. In fact, the process involves astonishingly complicated virus-vector interactions that have been the focus of many studies. Nowadays, this phenomenon is considered far from being purely "mechanical" and has been renamed "non-circulative" transmission. In addition to specific ligand/receptor-like interactions between the virus and the vector, sophisticated regulatory mechanisms occur between the host cell and the virus, which seem to be dedicated exclusively to successful virus transmission. The aim of this review is to illustrate, using Cauliflower mosaic virus as a model, the remarkable intricacy of the noncirculative mode of transmission, and possibly instigate analogous research for animal viruses.
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http://dx.doi.org/10.1684/vir.2011.17137 | DOI Listing |
Plant Dis
December 2024
Department of Agriculture and Food, Department of Agriculture and Food, 3 Baron-Hay Court, South Perth, Western Australia, Australia, 6151.
Turnip mosaic virus (TuMV) causes important diseases in Brassicaceae crops worldwide. In 2023, Brassica rapa ssp. perviridis cv.
View Article and Find Full Text PDFPlants (Basel)
September 2024
Department of Environmental Sciences, COMSATS University Islamabad, Abbottabad Campus, Abbottabad 22060, Pakistan.
BMC Genomics
October 2024
Division of Plant Pathology, ICAR-Indian Agricultural Research Institute, New Delhi, 110012, India.
Mustard is a commercial oilseed crop worldwide infected by a highly infectious turnip mosaic virus (TuMV). In the experimental field at ICAR-IARI, New Delhi, in 2022, a 100% incidence of TuMV infection was observed in brown, black and yellow mustard. A very low aphid population suggested the possibility of seed transmission.
View Article and Find Full Text PDFInt J Mol Sci
September 2024
Department of Life Sciences, Tzu Chi University, Hualien 97004, Taiwan.
Virology
December 2024
Division of Plant Science and Technology, University of Missouri, Columbia, MO, 65211, USA. Electronic address:
The P6 protein of cauliflower mosaic virus (CaMV) is a multifunctional protein that forms the electron dense, amorphous inclusion bodies that accumulate in the cytoplasm and has been shown to physically interact with all other CaMV proteins, including the CaMV movement protein (P1). In this study, we have investigated the subcellular localization of the P6 and P1 proteins in transient expression assays in Nicotiana benthamiana, as well as the influence of P6 on the expression and subcellular localization of P1. A version of P6 tagged with RFP was shown to envelop the endoplasmic reticulum (ER), whereas P1 tagged with RFP was shown to induce the fragmentation of the ER.
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