Results 51 to 60 of about 13,133 (254)

Suppression of RNA-Dependent RNA Polymerase 6 Favors the Accumulation of Potato Spindle Tuber Viroid in Nicotiana Benthamiana

open access: yesViruses, 2019
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

Implementation of GA-VirReport, a Web-Based Bioinformatics Toolkit for Post-Entry Quarantine Screening of Virus and Viroids in Plants

open access: yesViruses, 2022
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

Single and dual RPA‐CRISPR/Cas assays for point‐of‐need detection of Stewart's wilt pathogen (Pantoea stewartii subsp. stewartii) of corn and Maize dwarf mosaic virus

open access: yesPest Management Science, Volume 81, Issue 4, Page 1988-1999, April 2025.
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

open access: yesVirus Research, 2023
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?

open access: yesLife, 2022
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
doaj   +1 more source

Evolutionary History and Rhizosphere Microbial Community Composition in Domesticated Hops (Humulus lupulus L.)

open access: yesMolecular Ecology, EarlyView.
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

Conformation of viroids

open access: yesNucleic Acids Research, 1977
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

open access: yesFrontiers in Plant Science, 2023
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

open access: yesNew Phytologist, EarlyView.
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

λ-Carrageenan Suppresses Tomato Chlorotic Dwarf Viroid (TCDVd) Replication and Symptom Expression in Tomatoes

open access: yesMarine Drugs, 2015
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
doaj   +1 more source

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