Results 51 to 60 of about 13,133 (254)
To date, two plant genes encoding RNA-dependent RNA polymerases (RdRs) that play major roles in the defense against RNA viruses have been identified: (i) RdR1, which is responsible for the viral small RNAs (vsRNAs) found in virus-infected plants, and ...
Charith Raj Adkar-Purushothama+1 more
doaj +1 more source
High-throughput sequencing (HTS) of host plant small RNA (sRNA) is a popular approach for plant virus and viroid detection. The major bottlenecks for implementing this approach in routine virus screening of plants in quarantine include lack of ...
Ruvini V. Lelwala+10 more
doaj +1 more source
Schematic diagram of the single and dual RPA‐CRISPR/Cas12a/13a diagnostic assays for the detection of Pantoea stewartii subsp. stewartii and Maize dwarf mosaic virus. The validated assays provide a useful and sensitive molecular tool for detecting two quarantine pathogens of maize within a minimal resource framework suitable for fast‐tracking the ...
Qian Tian+6 more
wiley +1 more source
Role of RNA silencing in plant-viroid interactions and in viroid pathogenesis
Viroids are small, single-stranded, non-protein coding and circular RNAs able to infect host plants in the absence of any helper virus. They may elicit symptoms in their hosts, but the underlying molecular pathways are only partially known. Here we address the role of post-transcriptional RNA silencing in plant-viroid-interplay, with major emphasis on ...
Di Serio F.+8 more
openaire +7 more sources
Viroids and Viroid-like Circular RNAs: Do They Descend from Primordial Replicators?
Viroids are a unique class of plant pathogens that consist of small circular RNA molecules, between 220 and 450 nucleotides in size. Viroids encode no proteins and are the smallest known infectious agents.
Benjamin D. Lee, Eugene V. Koonin
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ABSTRACT Humulus lupulus L., commonly known as hop, is a perennial crop grown worldwide and is well known for its pharmacological, commercial, and most importantly brewing applications. For hundreds of years, hop has undergone intense artificial selection, with over 250 cultivated varieties being developed worldwide, all displaying differences in key ...
Alexandra McElwee‐Adame+17 more
wiley +1 more source
Viroids are uncoated infectious RNA molecules (MW 107 000-127 000) known as pathogens of certain higher plants. Thermodynamic and kinetic studies were carried out on highly purified viroid preparations by applying UV-absorption melting analysis and temperature jump methods. The thermal denaturation of viroids is characterized by high thermal stability,
Karsten Henco+2 more
openaire +4 more sources
ASSVd infection inhibits the vegetative growth of apple trees by affecting leaf metabolism
Apple scar skin viroid (ASSVd) can infect apple trees and cause scar skin symptoms. However, the associated physiological mechanisms are unclear in young saplings.
Guofang Li+9 more
doaj +1 more source
RNA elements and their biotechnological applications in plants
Summary Engineering of plants for improved traits and efficient heterologous protein production can be achieved by modifying or introducing cis‐ or trans‐acting RNA elements. The function of these elements depends not only on their nucleotide sequence but also on their highly dynamic higher order structures.
Filip Lastovka+3 more
wiley +1 more source
The effect of carrageenans on tomato chlorotic dwarf viroid (TCDVd) replication and symptom expression was studied. Three-week-old tomato plants were spray-treated with iota(ɩ)-, lambda(λ)-, and kappa(κ)-carrageenan at 1 g·L−1 and inoculated with TCDVd ...
Jatinder S. Sangha+6 more
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