Results 51 to 60 of about 16,362 (293)

Hepatitis Delta Virus RNA Replication

open access: yesViruses, 2009
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
doaj   +1 more source

VIROIDS IN ORNAMENTALS [PDF]

open access: yesActa Horticulturae, 2011
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 ...
openaire   +2 more sources

Detektion des Kartoffelspindelknollen Viroids mit Hilfe der Loop Mediated Isothermal Amplification [PDF]

open access: yes, 2011
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
core   +1 more source

Viroids and prions. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1982
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
openaire   +3 more sources

Pathogenic microbes, the microbiome, and Alzheimer’s disease (AD) [PDF]

open access: yes, 2013
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
core   +1 more source

Conventional PCR primers for the detection of grapevine pathogens disseminated by propagating material

open access: yesInternational Journal of Horticultural Science, 2014
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
doaj   +1 more source

Primers designed for the detection of grapevine pathogens spreading with propagating material by quantitative real-time PCR

open access: yesInternational Journal of Horticultural Science, 2015
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
doaj   +1 more source

Conserved Motifs and Domains in Members of Pospiviroidae

open access: yesCells, 2022
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
doaj   +1 more source

What is Life? [PDF]

open access: yes, 2020
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]

open access: yes, 2019
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
core   +1 more source

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