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Cucumber mosaic virus.
Evolutionary History of Cucumber Mosaic Virus Deduced by Phylogenetic Analyses
Analysis of the 3′ NTR that is conserved among all RNAs indicated that evolutionary constraints on this region are specific to the RNA component rather than the virus isolate, which indicates that functions other than replication are encoded in the 3″ NTR.
A Virus in a Fungus in a Plant: Three-Way Symbiosis Required for Thermal Tolerance
The characterized virus-infected fungus confers heat tolerance not only to its native monocot host but also to a eudicot host, which suggests that the underlying mechanism involves pathways conserved between these two groups of plants.
Plant virus satellite and defective interfering RNAs: new paradigms for a new century.
New models for DI RNA-mediated reduction in helper virus levels and symptom attenuation include DI RNA enhancement of posttranscriptional gene silencing (PTGS), which is an antiviral defense mechanism in plants.
Rearrangements in the 5′ Nontranslated Region and Phylogenetic Analyses of Cucumber Mosaic Virus RNA 3 Indicate Radial Evolution of Three Subgroups
Alignment of the 5′ nontranslated regions of RNA 3 for 26 strains of CMV suggests the division ofCMV into subgroups IA, IB, and II and suggests that rearrangements, deletions, and insertions in this region may have been the precursors of the subsequent radiation of each subgroup.
Mechanisms of plant virus evolution.
The propensity for rapid adaptation makes tracing the evolutionary history of viruses difficult, and long term control of virus disease nearly impossible, but it provides an excellent model system for studying general mechanisms of molecular evolution.
Virus infection improves drought tolerance.
It is shown that virus infection improves plant tolerance to abiotic stress, which correlates with increased osmoprotectant and antioxidant levels in infected plants.
Plant Virus Metagenomics: Advances in Virus Discovery.
These studies reveal a surprising lack of knowledge about plant viruses and point to the need for more comprehensive studies, which are providing useful tools to detect viruses, and perhaps to predict future problems that could threaten cultivated plants.
The good viruses: viral mutualistic symbioses
  • M. Roossinck
  • Biology
    Nature Reviews Microbiology
  • 1 February 2011
Beneficial viruses have been discovered in many different hosts, including bacteria, insects, plants, fungi and animals, and the mechanisms of these interactions are beginning to be understood in more detail.
Satellite RNAs of plant viruses: structures and biological effects.
The ameliorative satellites are being assessed as biocontrol agents of virus-induced disease as well as the possible origin of satellites will be briefly considered.