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Metagenome-assembled genome of withering syndrome causative agent, “ Candidatus Xenohaliotis californiensis,“ from endangered white abalone ( Haliotis sorenseni )

Citation
Kunselman et al. (2024). Microbiology Resource Announcements 13 (6)
Names
Ca. Xenohaliotis californiensis
Abstract
ABSTRACT The genome of “ Candidatus Xenohaliotis californiensis” was assembled from shotgun metagenomic sequencing of experimentally infected white abalone. Ninety-one percent genome completeness was achieved with low contamination. Sequencing this genome provides the opportunity to track pathogen evolution over time, conduct gene expression experiments, and study dynamics between this pathogen and its phage.

The complete genome of “ Candidatus Phytoplasma fraxini” AshY1 from the ash yellows group

Citation
Böhm et al. (2024). Microbiology Resource Announcements
Names
Ca. Phytoplasma fraxini
Abstract
ABSTRACT The complete genome of “ Candidatus Phytoplasma fraxini” AshY1, originating from Fraxinus americana in North America, was assembled using long reads from single-molecule real-time sequencing technology. The chromosome of 598 kb provides insights into the effector repertoire of a phytopathogenic bacterium from the 16SrVII phytoplasma group.

Momordica charantia Is a Novel Host of 'Candidatus Phytoplasma malaysianum'-Related Strains Associated with Bitter Melon Stem Fasciation Disease in China

Citation
Bottner-Parker et al. (2024). Plant Disease
Names
Ca. Phytoplasma malaysianum Ca. Phytoplasma luffae
Abstract
Momordica charantia, also known as bitter melon, bitter gourd, and bitter squash, is a member of the Cucurbitaceae family and is widely grown in tropical and subtropical regions for its edible fruit and medicinal properties (Alves et al. 2017). In April 2022, bitter melon plants exhibiting stem fasciation and excessive tendril symptoms were observed in a 50-acre vegetable farm in Yijia Village, Weishan Yizu Huizu Autonomous County, Dali, Yunnan Province, China (Fig. 1). The farm primarily grew

Identification and Characterization of Polyamine Metabolism in Citrus in Response to ‘Candidatus Liberibacter asiaticus’ Infection

Citation
Qifang et al. (2024). Phytopathology®
Names
Ca. Liberibacter asiaticus
Abstract
Citrus Huanglongbing, one of the most devastating citrus diseases, is caused by ‘ Candidatus Liberibacter asiaticus’ ( CLas). Polyamines are aliphatic nitrogen-containing compounds that play important roles in disease resistance and are synthesized primarily by two pathways: an arginine decarboxylation pathway and an ornithine decarboxylation pathway. However, it is unclear whether polyamines play a role in the tolerance of citrus to infection by CLas and, if so, whether one or both of the core