Publications by authors named "N J Donovan"
Article Synopsis
- A team of over 180 researchers from more than 40 countries is addressing the issues related to "phantom agents," which are proposed pathogenic agents that are listed without concrete evidence of their existence.
- These phantom agents, identified only through symptoms and lacking proper isolates or genetic data, create obstacles for trade and plant certification, making effective detection and risk assessment difficult.
- The researchers recommend removing these agents from regulatory lists and updating standards in line with modern diagnostic methods to facilitate germplasm exchange and support global agriculture.
Viroids occur in plants as swarms of sequence variants clustered around a dominant variant, leading to adoption of the term 'quasispecies' to describe the viroid population in an individual host. The composition of the quasispecies can potentially change according to the age of the infection, the position of the leaf or branch in the canopy, and the host species. The primary aim of this study was to investigate the quasispecies concept for citrus viroid VII (CVd-VII), a recently discovered member of the family Pospiviroidae.
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- - Citrus-associated rhabdovirus (CiaRV), a virus first identified in China in 2021, was studied using budwood from an asymptomatic kumquat plant grown in Australia, leading to the propagation of a daughter tree for further analysis.
- - Researchers extracted RNA from the green bark tissue of the daughter plant and utilized high-throughput sequencing to generate over 128 million raw data reads, which were subsequently analyzed to identify viral contigs.
- - The analysis revealed significant genetic similarities between the identified contigs and known CiaRV isolates, confirming the presence of the virus in the sample through various primer sets, resulting in the determination of a consensus genome sequence.
Introduction: This study investigated a remotely delivered, therapist-facilitated, personalized music listening intervention for community-dwelling older adults experiencing loneliness during the Covid-19 pandemic. We assessed its feasibility and individuals' experiences of social connection and emotional well-being during the intervention.
Methods: Ten cognitively unimpaired older adults who endorsed loneliness completed eight weekly sessions with a board-certified music therapist via Zoom.
Objective: Anxiety disorders and subsyndromal anxiety symptoms are highly prevalent in late life. Recent studies support that anxiety may be a neuropsychiatric symptom during preclinical Alzheimer's disease (AD) and that higher anxiety is associated with more rapid cognitive decline and progression to cognitive impairment. However, the associations of specific anxiety symptoms with AD pathologies and with co-occurring subjective and objective cognitive changes have not yet been established.
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