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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
Ca. ARS69
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

Diversity of ‘Candidatus Liberibacter asiaticus’ Strains in Texas Revealed by Prophage Sequence Analyses

Citation
De Leon et al. (2024). Plant Disease
Names
Ca. Liberibacter asiaticus
Abstract
Prophages/phages are important components of the genome of ‘Candidatus Liberibacter asiaticus’ (CLas), an unculturable alphaproteobacterium associated with citrus huanglongbing (HLB) disease. Phage variations have significant contributions to CLas strain diversity research, which provide critical information for HLB management. In this study, prophage variations among selected CLas strains from southern Texas were studied. The CLas strains were collected from three different CLas inhabitant env

Divergence within the Taxon ‘Candidatus Phytoplasma asteris’ Confirmed by Comparative Genome Analysis of Carrot Strains

Citation
Toth et al. (2024). Microorganisms 12 (5)
Names
Ca. Phytoplasma asteris
Abstract
Phytoplasmas are linked to diseases in hundreds of economically important crops, including carrots. In carrots, phytoplasmosis is associated with leaf chlorosis and necrosis, coupled with inhibited root system development, ultimately leading to significant economic losses. During a field study conducted in Baden-Württemberg (Germany), two strains of the provisional taxon ‘Candidatus Phytoplasma asteris’ were identified within a carrot plot. For further analysis, strains M8 and M33 underwent shot

An Inhibitor-Monitorable Single-Tube Duplex Quantitative Real-Time PCR Assay for the Detection of ‘Candidatus Liberibacter asiaticus’

Citation
Huang et al. (2024). Plant Disease
Names
Ca. Liberibacter asiaticus
Abstract
Huanglongbing (HLB) is a citrus infectious disease caused by ‘Candidatus Liberibacter’ spp. Recently, it has begun to spread rapidly worldwide, causing significant losses to the citrus industry. Early diagnosis of HLB relies on quantitative real-time PCR assays. However, the PCR inhibitors found in the nucleic acid extracted from plant materials pose challenges for PCR assays because they may result in false-negative results. Internal standard (IS) can be introduced to establish a single-tube d

Genome reduction and horizontal gene transfer in the evolution of Endomicrobia—rise and fall of an intracellular symbiosis with termite gut flagellates

Citation
Mies et al. (2024). mBio
Names
“Ruminimicrobium bovinum” “Ruminimicrobiellum ovillum” “Endomicrobiellum” “Ectomicrobium” “Parendomicrobium” “Ectomicrobium neotermitis” “Parendomicrobium porotermitis” “Parendomicrobium reticulitermitis” “Ruminimicrobiellum bubulum” “Ruminimicrobiellum caprinum” “Ruminimicrobiellum tauri” “Praeruminimicrobium” “Proruminimicrobium” “Ruminimicrobium” “Ruminimicrobiellum” “Endomicrobiellum devescovinae” “Proruminimicrobium quisquiliarum” “Praeruminimicrobium purgamenti” “Endomicrobiellum agilis” “Endomicrobiellum siamense” “Endomicrobiellum basalitermitum” “Endomicrobiellum guadaloupense” “Endomicrobiellum meruensis” “Proendomicrobium guianensium” “Endomicrobium embiratermitis” “Endomicrobium labiotermitis” “Endomicrobium neocapritermitis” “Endomicrobium macrotermitis” “Endomicrobium procryptotermitis” “Endomicrobiellum dinenymphae” “Endomicrobiellum trichonymphae” “Endomicrobiellum pyrsonymphae” “Endomicrobiellum neotermitis” “Endomicrobiellum mastotermitis” “Endomicrobiellum calonymphae” “Endomicrobiellum glyptotermitis” “Endomicrobiellum cryptotermitis” “Endomicrobiellum roisinitermitis” “Endomicrobiellum incisitermitis” “Endomicrobiellum porotermitis” “Endomicrobiellum cubanum” “Endomicrobiellum africanum” “Proendomicrobium”
Abstract
ABSTRACT Bacterial endosymbionts of eukaryotic hosts typically experience massive genome reduction, but the underlying evolutionary processes are often obscured by the lack of free-living relatives. Endomicrobia, a family-level lineage of host-associated bacteria in the phylum Elusimicrobiota that comprises both free-living representatives and endosymbionts of termite gut flagellates, are an excellent model to study e

‘Candidatus Phytoplasma mali’ SAP11-Like protein modulates expression of genes involved in energy production, photosynthesis, and defense in Nicotiana occidentalis leaves

Citation
Mittelberger et al. (2024). BMC Plant Biology 24 (1)
Names
Ca. Phytoplasma mali
Abstract
Abstract Background ‘Candidatus Phytoplasma mali’, the causal agent of apple proliferation disease, exerts influence on its host plant through various effector proteins, including SAP11CaPm which interacts with different TEOSINTE BRANCHED1/ CYCLOIDEA/ PROLIFERATING CELL FACTOR 1 and 2 (TCP) transcription factors. This study examines the transcriptional response of the plant upon early expression of SAP11CaPm. For that purpose, leaves of Nicotiana occidentalis H.-M

Mitochondrial Genome Resource of the Cottony Ash Psyllid, a Host of a Newly Identified ‘Candidatus Liberibacter’ bacterium

Citation
Sabaghian et al. (2024). PhytoFrontiers™
Names
“Liberibacter solanacearum” Liberibacter
Abstract
Cottony ash psyllid (CAP, Phyllopsis discrepans) is an important, invasive insect pest of ash trees in North America where it has established populations and is the host of a newly identified strain of 'Candidatus Liberibacter solanacearum'. However, not much is known about the diversity of its introduced population. In this study, a CAP mitochondrial genome (mitogenome) sequence was obtained from a collection in Saskatoon, Saskatchewan, Canada. The CAP mitogenome is a circular DNA of 18,824 bp