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Ecological significance of Candidatus ARS69 and Gemmatimonadota in the Arctic glacier foreland ecosystems

Citation
Venkatachalam et al. (2024). Applied Microbiology and Biotechnology 108 (1)
Names
Abstract
Abstract  The Gemmatimonadota phylum has been widely detected in diverse natural environments, yet their specific ecological roles in many habitats remain poorly investigated. Similarly, the Candidatus ARS69 phylum has been identified only in a few habitats, and literature on their metabolic functions is relatively scarce. In the present study, we investigated the ecological significance of phyla Ca. ARS69 and Gemmatimonadota in the Arctic glacier foreland (GF) e

A Draft Genome Resource for ‘Candidatus Phytoplasma prunorum’, the Agent Associated with European Stone Fruit Yellows Disease

Citation
Fonseca et al. (2024). PhytoFrontiers™
Names
Ca. Phytoplasma prunorum Ca. Phytoplasma mali
Abstract
‘Candidatus Phytoplasma prunorum’ is associated with European stone fruit yellows disease, affecting wild and cultivated species of Prunus at different degrees of susceptibility, so far being mainly restricted to Europe. Here, we report draft genome sequences for ‘Ca. Phytoplasma prunorum’ strains ESFY1 and LNS1, which represent the first available for this species. Strain ESFY1 is the causal agent of the European stone fruit yellows disease of Prunus persica in Germany and LNS1, leptonecrosis

First Report of Candidatus phytoplasma asteris-related strains (subgroup 16SrI-A) Associated with Aster Yellows on Chrysanthemums in Oklahoma

Citation
Jibrin et al. (2024). Plant Disease
Names
Abstract
In November and December of 2023, samples of cultivars of chrysanthemums (Chrysanthemum morifolium) from a commercial greenhouse facility within the state were submitted to the Oklahoma State University (OSU) Plant Disease and Insect Diagnostic Laboratory (Stillwater, OK). More than 300 symptomatic and asymptomatic stems with flowers and flower buds were submitted. Symptomatic samples were like those reported for aster yellows on multiple plant species, with visible phyllody and virescence. A t

Effects of ‘Candidatus’ Liberibacter Asiaticus on the Root System of Poncirus trifoliata Hybrids as a Rootstock for ‘Valencia’ Scion

Citation
Cavichioli et al. (2024). Horticulturae 10 (9)
Names
Ca. Liberibacter asiaticus Liberibacter
Abstract
The symptoms of huanglongbing (HLB), a disease caused by the bacterium Candidatus Liberibacter asiaticus (CLas), are visible on the canopy of citrus plants. They include mottling of leaves followed by dropping and lopsided fruits with premature dropping. Loss in phloem functionality and degradation of the root system are also HLB symptoms with a severe impact on plant growth and production. Some Citrus relatives, such as Poncirus trifoliata and its hybrids, have shown more tolerance to HLB disea

Transcriptomic profiling of ‘CandidatusLiberibacter asiaticus’ in different citrus tissues reveals novel insights into Huanglongbing pathogenesis

Citation
Lovelace et al. (2024).
Names
Ca. Liberibacter asiaticus
Abstract
ABSTRACT‘CandidatusLiberibacter asiaticus’ (Las) is a gram-negative bacterial pathogen associated with citrus huanglongbing (HLB) or greening disease. Las is transmitted by the Asian citrus psyllid (ACP) where it colonizes the phloem tissue, resulting in substantial economic losses to citrus industry worldwide. Despite extensive efforts, effective management strategies against HLB remain elusive, necessitating a deeper understanding of the pathogen’ s biology. Las undergoes cell-to-cell movement