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“ Candidatus Subterrananammoxibiaceae,” a New Anammox Bacterial Family in Globally Distributed Marine and Terrestrial Subsurfaces

Citation
Zhao et al. (2023). Applied and Environmental Microbiology 89 (8)
Names
Ca. Subterrananammoxibiaceae
Abstract
Microorganisms called anammox bacteria are efficient in removing bioavailable nitrogen from many natural and human-made environments. They exist in almost every anoxic habitat where both ammonium and nitrate/nitrite are present.

“ Candidatus Nealsonbacteria” Are Likely Biomass Recycling Ectosymbionts of Methanogenic Archaea in a Stable Benzene-Degrading Enrichment Culture

Citation
Chen et al. (2023). Applied and Environmental Microbiology 89 (5)
Names
Ca. Nealsonbacteria
Abstract
An anaerobic microbial enrichment culture was used to study members of candidate phyla that are difficult to grow in the lab. We were able to visualize tiny “ Candidatus Nealsonbacteria” cells attached to a large Methanothrix cell, revealing a novel episymbiosis.

Occurrence, Diversity, and Genomes of “ Candidatus Patescibacteria” along the Early Diagenesis of Marine Sediments

Citation
Zhao et al. (2022). Applied and Environmental Microbiology 88 (24)
Names
Ca. Patescibacteria
Abstract
Ultrasmall-celled “ Ca. Patescibacteria” have been estimated to account for one-quarter of the total microbial diversity on Earth, the parasitic lifestyle of which may exert a profound control on the overall microbial population size of the local ecosystems. However, their diversity and metabolic functions in marine sediments, one of the largest yet understudied ecosystems on Earth, remain virtually uncharacterized.

Dehalogenation of Chlorinated Ethenes to Ethene by a Novel Isolate, “ Candidatus Dehalogenimonas etheniformans”

Citation
Chen et al. (2022). Applied and Environmental Microbiology 88 (12)
Names
Ca. Dehalogenimonas etheniformans
Abstract
Chlorinated ethenes are risk drivers at many contaminated sites, and current bioremediation efforts focus on organohalide-respiring Dehalococcoides mccartyi strains to achieve detoxification. We isolated and characterized the first non- Dehalococcoides bacterium, “ Candidatus Dehalogenimonas etheniformans” strain GP, capable of metabolic reductive dechlorination of TCE, all DCE isomers, and VC to environmentally

Methanosaeta and “ Candidatus Velamenicoccus archaeovorus”

Citation
Kizina et al. (2022). Applied and Environmental Microbiology 88 (7)
Names
“Velamenicoccus archaeovorus” “Velamenicoccus”
Abstract
Epibiotic bacteria are known to live on and off bacterial cells. Here, we describe the ultramicrobacterial anaerobic epibiont OP3 LiM living on Archaea and Bacteria .

The “Other” Rickettsiales : an Overview of the Family “ Candidatus Midichloriaceae”

Citation
Giannotti et al. (2022). Applied and Environmental Microbiology 88 (6)
Names
Ca. Midichloriaceae
Abstract
Among endosymbiotic bacterial lineages, few are as intensely studied as Rickettsiales , which include the causative agents of spotted fever, typhus, and anaplasmosis. However, an important subgroup called “ Candidatus Midichloriaceae” receives little attention despite accounting for a third of the diversity of Rickettsiales and harboring a wide range of bacteria with unique features, like the ability to infect m

Candidatus Kaistella beijingensis sp. nov., Isolated from a Municipal Wastewater Treatment Plant, Is Involved in Sludge Foaming

Citation
Song et al. (2021). Applied and Environmental Microbiology 87 (24)
Names
Ca. Kaistella beijingensis
Abstract
Biological foaming or scumming is a sludge separation problem that has become the subject of major concern for long-term stable activated sludge operation in decades. Biological foaming was considered induced by foaming bacteria.

Genomic Insights into the Ecological Role and Evolution of a Novel Thermoplasmata Order, “ Candidatus Sysuiplasmatales”

Citation
Yuan et al. (2021). Applied and Environmental Microbiology 87 (22)
Names
Ca. Sysuiplasmatales
Abstract
A wide array of archaea populate Earth’s extreme environments; therefore, they may play important roles in mediating biogeochemical processes such as iron and sulfur cycling. However, our knowledge of archaeal biology and evolution is still limited considering that the majority of the archaeal diversity is uncultured.

A Glycolipid Glycosyltransferase with Broad Substrate Specificity from the Marine Bacterium “ Candidatus Pelagibacter sp.” Strain HTCC7211

Citation
Wei et al. (2021). Applied and Environmental Microbiology 87 (14)
Names
Ca. Pelagibacter
Abstract
The bilayer formed by membrane lipids serves as the containment unit for living microbial cells. In the marine environment, it has been firmly established that phytoplankton and heterotrophic bacteria can substitute phospholipids with nonphosphorus sugar-containing glycoglycerolipids in response to phosphorus limitation.

“ Sifarchaeota ,” a Novel Asgard Phylum from Costa Rican Sediment Capable of Polysaccharide Degradation and Anaerobic Methylotrophy

Citation
Farag et al. (2021). Applied and Environmental Microbiology 87 (9)
Names
Ca. Sifarchaeum Ca. Sifarchaeum marinoarchaea Ca. Sifarchaeum subterraneus Ca. Sifarchaeota
Abstract
The exploration of deep marine sediments has unearthed many new lineages of microbes. The finding of this novel phylum of Asgard archaea is important, since understanding the diversity and evolution of Asgard archaea may inform also about the evolution of eukaryotic cells. The comparison of metabolic potentials of the Asgard archaea can help inform about selective pressures the lineages have faced during evolution.