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Genetic potential for aerobic respiration and denitrification in globally distributed respiratory endosymbionts

Citation
Speth et al. (2024). Nature Communications 15 (1)
Names
Azoamicus ciliaticola Ts Azosocius agrarius Ts Azoamicus soli Azosocius aquiferis Azoamicus viridis Azoamicaceae Azosocius Azoamicales
Abstract
AbstractThe endosymbiont Candidatus Azoamicus ciliaticola was proposed to generate ATP for its eukaryotic host, an anaerobic ciliate of the Plagiopylea class, fulfilling a function analogous to mitochondria in other eukaryotic cells. The discovery of this respiratory endosymbiosis has major implications for both evolutionary history and ecology of microbial eukaryotes. However, with only a single species described, knowledge of its environmental distribution and diversity is limited. Here we rep

Identifying the earliest citrus responses to Candidatus Liberibacter asiaticus infection: a temporal metabolomics study

Citation
Li et al. (2024). Frontiers in Plant Science 15
Names
Ca. Liberibacter asiaticus
Abstract
The global citrus industry faces a great threat from Huanglongbing (HLB), a destructive disease caused by ‘Candidatus Liberibacter asiaticus’ (CLas) that induces significant economic losses without any known cure. Understanding how citrus plants defend against HLB, particularly at the early stages of infection, is crucial for developing long-term solutions. This study investigated the earliest metabolic responses of fresh citrus leaves to CLas infection using untargeted metabolomics and machine

‘<scp>Candidatus</scp> Liberibacter asiaticus’ infection alters the reflectance profile in asymptomatic citrus plants

Citation
Vieira et al. (2024). Pest Management Science
Names
Ca. Liberibacter asiaticus
Abstract
AbstractBACKGROUNDHuanglongbing (HLB) is the primary and most destructive disease affecting citrus, caused by a pathogen transmitted by an insect vector, Diaphorina citri. There are no curative methods for the disease, and rapid and accurate methods are needed for early detection in the field, even before symptoms appear. These will facilitate the faster removal of infected trees, preventing the spread of the bacteria through commercial citrus orchards.RESULTSIt was possible to determine ranges

Potential habitat suitability of Candidatus Liberibacter asiaticus and genetic diversity of its prophages across China

Citation
You et al. (2024). Microbiology Spectrum 12 (11)
Names
Ca. Liberibacter asiaticus
Abstract
ABSTRACT Huanglongbing (HLB) is a severe citrus disease in China caused by Candidatus Liberibacter asiaticus ( C Las). Since its initial identification, the pathogen has spread to 10 mainland provinces in China and caused devastating loss. Three distinct prophage types have been identified in C Las; however, their distribution and diversity in China remain inadeq

Comparative RT-qPCR and qPCR reveals early infection, low-titer infection, and relative cell activity of the HLB bacterium,CandidatusLiberibacter asiaticus

Citation
Patterson et al. (2024).
Names
Ca. Liberibacter asiaticus
Abstract
AbstractCandidatusLiberibacter asiaticus (Las) is one of the causal agents of citrus huanglongbing (HLB) epidemics worldwide. Due to its fastidious nature, intracellular and systemic infection, detecting Las at early and/or low-titer infection, as well as differentiating between live or dead cells in the host psyllids and citrus plants is critical for effective HLB management. To achieve both sensitive Las detection and differentiation, we employed one-step reverse transcription-quantitative PCR

Discovery of deep-sea coral symbionts from a novel clade of marine bacteria with severely reduced genomes

Citation
Vohsen et al. (2024). Nature Communications 15 (1)
Names
“Oceanoplasma callogorgiae”
Abstract
Abstract Microbes perform critical functions in corals, yet most knowledge is derived from the photic zone. Here, we discover two mollicutes that dominate the microbiome of the deep-sea octocoral, Callogorgia delta, and likely reside in the mesoglea. These symbionts are abundant across the host’s range, absent in the water, and appear to be rare in sediments. Unlike other mollicutes, they lack all known fermentative capabilities, including glycolysis, and can only generate energy from