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Relevance of Candidatus Nitrotoga for nitrite oxidation in technical nitrogen removal systems

Citation
Spieck et al. (2021). Applied Microbiology and Biotechnology 105 (19)
Names
Ca. Nitrotoga
Abstract
Abstract Many biotechnological applications deal with nitrification, one of the main steps of the global nitrogen cycle. The biological oxidation of ammonia to nitrite and further to nitrate is critical to avoid environmental damage and its functioning has to be retained even under adverse conditions. Bacteria performing the second reaction, oxidation of nitrite to nitrate, are fastidious microorganisms that are highly sensitive against disturbances. One importan

Canopy health, but not Candidatus Liberibacter asiaticus Ct values, are correlated with fruit yield in Huanglongbing affected sweet orange trees

Citation
Levy et al. (2021).
Names
Ca. Liberibacter asiaticus
Abstract
AbstractIn Florida, almost all citrus trees are infected with Huanglongbing (HLB), caused by the gram-negative, intracellular phloem limited bacteria Candidatus liberibacter asiaticus (CLas). Distinguishing between the severely and mildly sick trees is important for managing the groves and testing new HLB therapies. A mildly sick tree is one that produces higher fruit yield, compared to a severely sick tree, but measuring yields is laborious and time consuming. Here we characterized HLB affected

Olive fruit fly and its obligate symbiont Candidatus Erwinia dacicola: Two new symbiont haplotypes in the Mediterranean basin

Citation
Nobre (2021). PLOS ONE 16 (9)
Names
Ca. Erwinia dacicola
Abstract
The olive fruit fly, specialized to become monophagous during several life stages, remains the most important olive tree pest with high direct production losses, but also affecting the quality, composition, and inherent properties of the olives. Thought to have originated in Africa is nowadays present wherever olive groves are grown. The olive fruit fly evolved to harbor a vertically transmitted and obligate bacterial symbiont -Candidatus Erwinia dacicola- leading thus to a tight evolutionary hi

Candidatus Eremiobacterota, a metabolically and phylogenetically diverse terrestrial phylum with acid-tolerant adaptations

Citation
Ji et al. (2021). The ISME Journal 15 (9)
Names
Eremiobacterota Mawsoniella Mawsoniella australis Ts “Cryoxeromicrobium” “Cryoxeromicrobium davisii” Nyctobacter Nyctobacter psychrophilus Ts Erabacter Erabacter solicola Ts “Hesperobacter” “Hesperobacter lustricola” Meridianibacter Meridianibacter frigidus Ts “Aquilonibacter” “Aquilonibacter stordalenmirensis” Tyrphobacter Tyrphobacter aquilonaris Ts Tumulicola Tumulicola scandinaviensis Ts Cybelea Cybelea septentrionalis Ts Cybelea tumulisoli “Cybelea tyrphae” Cybelea palsarum “Palsibacter” “Palsibacter borealis” “Hemerobacter” “Hemerobacter limicola” Velthaea Velthaea versatilis Ts Lustribacter “Lustribacter caenicola” Lustribacter telmatis Ts Elarobacter Elarobacter winogradskyi Ts “Elarobacter vanleeuwenhoeki” “Elarobacter pasteuri” “Elarobacter beijerinckii” Tityobacter Tityobacter terrigena Ts Xenobium Xenobium occultum Ts Bruticola Bruticola papionis Ts “Xenobium purgamenti” Xenobiaceae Eremiobacterales Eremiobacteraceae Eremiobacter Eremiobacter antarcticus Ts Eremiobacteria Zemelea palustris Ts Zemelea Xenobiales Xenobiia
Abstract
Abstract Candidatus phylum Eremiobacterota (formerly WPS-2) is an as-yet-uncultured bacterial clade that takes its name from Ca. Eremiobacter, an Antarctic soil aerobe proposed to be capable of a novel form of chemolithoautotrophy termed atmospheric chemosynthesis, that uses the energy derived from atmospheric H2-oxidation to fix CO2 through the Calvin-Benson-Bassham (CBB) cycle via type 1E RuBisCO. To elucidate the phylogenetic affiliation and metabolic capacities of Ca. Eremioba

A closed Candidatus Odinarchaeum genome exposes Asgard archaeal viruses

Citation
Tamarit et al. (2021).
Names
Ca. Odinarchaeum yellowstonii
Abstract
Asgard archaea have recently been identified as the closest archaeal relatives of eukaryotes. Their ecology remains enigmatic, and their virome, completely unknown. Here, we describe the closed genome of Ca. Odinarchaeum yellowstonii LCB_4, and, from this, obtain novel CRISPR arrays with spacer targets to several viral contigs. We find related viruses in sequence data from thermophilic environments and in the genomes of diverse prokaryotes, including other Asgard archaea. These novel viruses ope