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Hepatitis Delta Virus RNA Replication
Hepatitis delta virus (HDV) is a distant relative of plant viroids in the animal world. Similar to plant viroids, HDV replicates its circular RNA genome using a double rolling-circle mechanism.
Chung-Hsin Tseng, Michael M. C. Lai
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With a genome composed of a small (246-401 nt), single-stranded, circular RNA, viroids are a special class of replicons infecting plants, including some ornamentals, in which they may induce specific diseases. In striking contrast to plant viruses, which encode proteins mediating their own replication and movement, viroids depend on host factors for ...
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Detektion des Kartoffelspindelknollen Viroids mit Hilfe der Loop Mediated Isothermal Amplification [PDF]
PSTV ist ein hoch infektiöses Viroid, das in Kartoffeln verkleinerte und spindelähnliche Knollen verursacht. Um Ernteverlusten vorzubeugen, ist eine Detektion in frühen Infektionsstadien von großer Bedeutung.
Frohme, Marcus+3 more
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Viroids are small "naked" infectious RNA molecules that are pathogens of higher plants. The potato spindle tuber viroid (PSTV) is composed of a covalently closed circular RNA molecule containing 359 ribonucleotides. The properties of PSTV were compared with those of the scrapie agent, which causes a degenerative neurological disease in animals.
Michael P. McKinley+2 more
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Pathogenic microbes, the microbiome, and Alzheimer’s disease (AD) [PDF]
The Si(111)-(3 ? 1)Li and Ag surface structures consist of Si honeycomb chains separated by channels occupied by Li or Ag atoms. The dimerization of neighboring Ag atoms results in a larger c (12 ? 2)Ag superstructure.
MCGILP, JOHN, PATTERSON, CHARLES
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Polymerase chain reaction driven by sequence specific primers has become the most widely used diagnostic method to detect and identify plant pathogens.
E. Manduláné Farkas+6 more
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Several grapevine pathogens are disseminated by propagating material as systemic, but latent infections. Their detection and identification have a basic importance in the production and handling of propagating stocks.
N. Czotter+6 more
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Conserved Motifs and Domains in Members of Pospiviroidae
In 1985, Keese and Symons proposed a hypothesis on the sequence and secondary structure of viroids from the family Pospiviroidae: their secondary structure can be subdivided into five structural and functional domains and “viroids have evolved by ...
Kevin-Phil Wüsthoff, Gerhard Steger
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In searching for life in extraterrestrial space, it is essential to act based on an unequivocal definition of life. In the twentieth century, life was defined as cells that self-replicate, metabolize, and are open for mutations, without which genetic ...
Witzany, Guenther
core
A 212-nt long RNA structure in the Tobacco necrosis virus-D RNA genome is resistant to Xrn degradation [PDF]
Plus-strand RNA viruses can accumulate viral RNA degradation products during infections. Some of these decay intermediates are generated by the cytosolic 5′-to-3′ exoribonuclease Xrn1 (mammals and yeast) or Xrn4 (plants) and are formed when the enzyme ...
Chaminda, Gunawardene D.+2 more
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