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Molecular and Cellular Probes Feb 2022Plant viral diseases accounts for major global economic losses in modern-day agriculture. Plant viral disease management is the primary challenge for both farmers and... (Review)
Review
Plant viral diseases accounts for major global economic losses in modern-day agriculture. Plant viral disease management is the primary challenge for both farmers and researchers. Detection and identification of plant viruses are of paramount importance for successful management of a viral disease. Recent advancements in molecular biology have contributed to significant progress in the development of new, sensitive, and effective diagnostic methods. However, most techniques are neither time/cost-effective nor user-friendly and require sophisticated labs. Hence, the past few decades of agricultural research have mainly focused on developing farmer-friendly, point-of-care diagnostic tools that provide high-sensitive rapid diagnosis. The current trend in plant virus diagnostic tools is cheaper, easy-to-use portable devices with no compromise on sensitivity and reproducibility.
Topics: Plant Diseases; Plant Viruses; Plants; Point-of-Care Systems; Reproducibility of Results
PubMed: 34798294
DOI: 10.1016/j.mcp.2021.101779 -
Annual Review of Microbiology 1985
Review
Topics: Base Sequence; Biological Evolution; Plant Viruses; RNA, Viral; Satellite Viruses
PubMed: 3904598
DOI: 10.1146/annurev.mi.39.100185.001055 -
Viruses Jul 2019I thank all the teams of authors, the scientists who reviewed submitted manuscripts and made suggestions that improved the reports, and the editorial staff workers who...
I thank all the teams of authors, the scientists who reviewed submitted manuscripts and made suggestions that improved the reports, and the editorial staff workers who put this special issue together [...].
Topics: Biodiversity; Ecology; Plant Viruses
PubMed: 31344791
DOI: 10.3390/v11080676 -
Cells Jan 2021Vector transmission of plant viruses is basically of two types that depend on the virus helper component proteins or the capsid proteins. A number of plant viruses... (Review)
Review
Vector transmission of plant viruses is basically of two types that depend on the virus helper component proteins or the capsid proteins. A number of plant viruses belonging to disparate groups have developed unusual capsid proteins providing for interactions with the vector. Thus, cauliflower mosaic virus, a plant pararetrovirus, employs a virion associated p3 protein, the major capsid protein, and a helper component for the semi-persistent transmission by aphids. Benyviruses encode a capsid protein readthrough domain (CP-RTD) located at one end of the rod-like helical particle, which serves for the virus transmission by soil fungal zoospores. Likewise, the CP-RTD, being a minor component of the luteovirus icosahedral virions, provides for persistent, circulative aphid transmission. Closteroviruses encode several CPs and virion-associated proteins that form the filamentous helical particles and mediate transmission by aphid, whitefly, or mealybug vectors. The variable strategies of transmission and evolutionary 'inventions' of the unusual capsid proteins of plant RNA viruses are discussed.
Topics: Animals; Aphids; Capsid Proteins; Evolution, Molecular; Plant Viruses; RNA, Viral
PubMed: 33430410
DOI: 10.3390/cells10010090 -
Advances in Virus Research 1965
Review
Topics: Animals; Disease Vectors; In Vitro Techniques; Plant Viruses
PubMed: 5322437
DOI: 10.1016/s0065-3527(08)60543-6 -
Advances in Virus Research 1969
Review
Topics: Amino Acids; Arthropod Vectors; Biometry; DNA, Viral; Fungi; Nematoda; Plant Viruses; RNA, Viral; Terminology as Topic; Viral Proteins
PubMed: 4886837
DOI: 10.1016/s0065-3527(08)60562-x -
PLoS Biology Jun 2023Numerous, diverse plant viruses encode movement proteins (MPs) that aid the virus movement through plasmodesmata, the plant intercellular channels. MPs are essential for...
Numerous, diverse plant viruses encode movement proteins (MPs) that aid the virus movement through plasmodesmata, the plant intercellular channels. MPs are essential for virus spread and propagation in distal tissues, and several unrelated MPs have been identified. The 30K superfamily of MPs (named after the molecular mass of tobacco mosaic virus MP, the classical model of plant virology) is the largest and most diverse MP variety, represented in 16 virus families, but its evolutionary origin remained obscure. Here, we show that the core structural domain of the 30K MPs is homologous to the jelly-roll domain of the capsid proteins (CPs) of small RNA and DNA viruses, in particular, those infecting plants. The closest similarity was observed between the 30K MPs and the CPs of the viruses in the families Bromoviridae and Geminiviridae. We hypothesize that the MPs evolved via duplication or horizontal acquisition of the CP gene in a virus that infected an ancestor of vascular plants, followed by neofunctionalization of one of the paralogous CPs, potentially through the acquisition of unique N- and C-terminal regions. During the subsequent coevolution of viruses with diversifying vascular plants, the 30K MP genes underwent explosive horizontal spread among emergent RNA and DNA viruses, likely permitting viruses of insects and fungi that coinfected plants to expand their host ranges, molding the contemporary plant virome.
Topics: Capsid Proteins; Plant Viral Movement Proteins; Tobacco Mosaic Virus; Plant Viruses; Plants; RNA; Nicotiana
PubMed: 37319262
DOI: 10.1371/journal.pbio.3002157 -
Viruses Apr 2022As rivals over the long history of co-evolution, viruses and host plants have each developed specialized strategies and machineries to cope with the rivalry [...].
As rivals over the long history of co-evolution, viruses and host plants have each developed specialized strategies and machineries to cope with the rivalry [...].
Topics: DNA Viruses; Plant Diseases; Plant Viruses; Plants; Viruses, Unclassified
PubMed: 35632605
DOI: 10.3390/v14050864 -
Molecular Plant Pathology Dec 2011Many scientists, if not all, feel that their particular plant virus should appear in any list of the most important plant viruses. However, to our knowledge, no such... (Review)
Review
Many scientists, if not all, feel that their particular plant virus should appear in any list of the most important plant viruses. However, to our knowledge, no such list exists. The aim of this review was to survey all plant virologists with an association with Molecular Plant Pathology and ask them to nominate which plant viruses they would place in a 'Top 10' based on scientific/economic importance. The survey generated more than 250 votes from the international community, and allowed the generation of a Top 10 plant virus list for Molecular Plant Pathology. The Top 10 list includes, in rank order, (1) Tobacco mosaic virus, (2) Tomato spotted wilt virus, (3) Tomato yellow leaf curl virus, (4) Cucumber mosaic virus, (5) Potato virus Y, (6) Cauliflower mosaic virus, (7) African cassava mosaic virus, (8) Plum pox virus, (9) Brome mosaic virus and (10) Potato virus X, with honourable mentions for viruses just missing out on the Top 10, including Citrus tristeza virus, Barley yellow dwarf virus, Potato leafroll virus and Tomato bushy stunt virus. This review article presents a short review on each virus of the Top 10 list and its importance, with the intent of initiating discussion and debate amongst the plant virology community, as well as laying down a benchmark, as it will be interesting to see in future years how perceptions change and which viruses enter and leave the Top 10.
Topics: Cucumovirus; Plant Diseases; Plant Pathology; Plant Viruses; Potyvirus; Tobacco Mosaic Virus
PubMed: 22017770
DOI: 10.1111/j.1364-3703.2011.00752.x -
Molecular Plant Pathology Feb 2018The chloroplast is one of the most dynamic organelles of a plant cell. It carries out photosynthesis, synthesizes major phytohormones, plays an active part in the... (Review)
Review
The chloroplast is one of the most dynamic organelles of a plant cell. It carries out photosynthesis, synthesizes major phytohormones, plays an active part in the defence response and is crucial for interorganelle signalling. Viruses, on the other hand, are extremely strategic in manipulating the internal environment of the host cell. The chloroplast, a prime target for viruses, undergoes enormous structural and functional damage during viral infection. Indeed, large proportions of affected gene products in a virus-infected plant are closely associated with the chloroplast and the process of photosynthesis. Although the chloroplast is deficient in gene silencing machinery, it elicits the effector-triggered immune response against viral pathogens. Virus infection induces the organelle to produce an extensive network of stromules which are involved in both viral propagation and antiviral defence. From studies over the last few decades, the involvement of the chloroplast in the regulation of plant-virus interaction has become increasingly evident. This review presents an exhaustive account of these facts, with their implications for pathogenicity. We have attempted to highlight the intricacies of chloroplast-virus interactions and to explain the existing gaps in our current knowledge, which will enable virologists to utilize chloroplast genome-based antiviral resistance in economically important crops.
Topics: Chloroplasts; Gene Expression Regulation, Plant; Plant Diseases; Plant Viruses
PubMed: 28056496
DOI: 10.1111/mpp.12533