Wei, Wei


Publications
18

Cas12a-Based Diagnostics for Potato Purple Top Disease Complex Associated with Infection by ‘Candidatus Phytoplasma trifolii’-Related Strains

Citation
Wheatley et al. (2022). Plant Disease 106 (8)
Names
Ca. Phytoplasma trifolii
Abstract
‘Candidatus Phytoplasma trifolii’ is a cell wall-less phytopathogenic bacterium that infects many agriculturally important plant species such as alfalfa, clover, eggplant, pepper, potato, and tomato. The phytoplasma is responsible for repeated outbreaks of potato purple top (PPT) and potato witches’ broom (PWB) that occurred along the Pacific Coast of the United States since 2002, inflicting significant economic losses. To effectively manage these phytoplasmal diseases, it is important to devel

Revision of the ‘Candidatus Phytoplasma’ species description guidelines

Citation
Bertaccini et al. (2022). International Journal of Systematic and Evolutionary Microbiology 72 (4)
Names
Ca. Phytoplasma
Abstract
The genus ‘Candidatus Phytoplasma’ was proposed to accommodate cell wall-less bacteria that are molecularly and biochemically incompletely characterized, and colonize plant phloem and insect vector tissues. This provisional classification is highly relevant due to its application in epidemiological and ecological studies, mainly aimed at keeping the severe phytoplasma plant diseases under control worldwide. Given the increasing discovery of molecular diversity within the genus ‘Ca. Phytoplasma’,

Candidatus Phytoplasma ulmi (elm yellows)

Citation
Zhao, Wei (2021).
Names
Ca. Phytoplasma ulmi
Abstract
Abstract Elm yellows develops in sporadic epidemics after introduction of 'Ca. Phytoplasma ulmi' to areas where vectors are abundant.

Candidatus Phytoplasma trifolii (clover proliferation phytoplasma)

Citation
Zhao, Wei (2021).
Names
Ca. Phytoplasma trifolii
Abstract
Abstract The reference strain of 'Ca. Phytoplasma trifolii' is the causative agent of clover proliferation (CP) disease of alsike clover (Trifolium hybridum). The CP disease was first reported in Canada in the early 1960s when the aetiological agent was mistakenly presumed to be a yellows-type virus (Chiykowski, 1965). Subsequent investigations revealed that the disease was associated with infection by a mycoplasma-like organism (Chen and Hiruki, 1975>; Hiruki and Chen, 1984), now ter

Candidatus Phytoplasma trifolii (clover proliferation phytoplasma)

Citation
Zhao, Wei (2021).
Names
Ca. Phytoplasma trifolii
Abstract
Abstract The reference strain of 'Ca. Phytoplasma trifolii' is the causative agent of clover proliferation (CP) disease of alsike clover (Trifolium hybridum). The CP disease was first reported in Canada in the early 1960s when the aetiological agent was mistakenly presumed to be a yellows-type virus (Chiykowski, 1965). Subsequent investigations revealed that the disease was associated with infection by a mycoplasma-like organism (Chen and Hiruki, 1975; Hiruki and Chen, 1984), now termed

The agent associated with blue dwarf disease in wheat represents a new phytoplasma taxon, ‘Candidatus Phytoplasma tritici’

Citation
Zhao et al. (2021). International Journal of Systematic and Evolutionary Microbiology 71 (1)
Names
Ca. Phytoplasma tritici Ca. Phytoplasma asteris
Abstract
Wheat blue dwarf (WBD) is one of the most economically damaging cereal crop diseases in northwestern PR China. The agent associated with the WBD disease is a phytoplasma affiliated with the aster yellows (AY) group, subgroup C (16SrI-C). Since phytoplasma strains within the AY group are ecologically and genetically diverse, it has been conceived that the AY phytoplasma group may consist of more than one species. This communication presents evidence to demonstrate that, while each of the two 16 r

Multilocus Genotyping Reveals New Molecular Markers for Differentiating Distinct Genetic Lineages among “Candidatus Phytoplasma Solani” Strains Associated with Grapevine Bois Noir

Citation
Passera et al. (2020). Pathogens 9 (11)
Names
Ca. Phytoplasma solani Ca. Phytoplasma
Abstract
Grapevine Bois noir (BN) is associated with infection by “Candidatus Phytoplasma solani” (CaPsol). In this study, an array of CaPsol strains was identified from 142 symptomatic grapevines in vineyards of northern, central, and southern Italy and North Macedonia. Molecular typing of the CaPsol strains was carried out by analysis of genes encoding 16S rRNA and translation elongation factor EF-Tu, as well as eight other previously uncharacterized genomic fragments. Strains of tuf-type a and b were