Search results (80)


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

Citation
Chen et al. (2022). Applied and Environmental Microbiology 88 (12)
Names
Ca. Dehalogenimonas etheniformans
Subjects
Applied Microbiology and Biotechnology Biotechnology Ecology Food Science
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 benign ethene.

<i>Methanosaeta</i> and “ <i>Candidatus</i> Velamenicoccus archaeovorus”

Citation
Kizina et al. (2022). Applied and Environmental Microbiology 88 (7)
Names
“Velamenicoccus” “Velamenicoccus archaeovorus”
Subjects
Applied Microbiology and Biotechnology Biotechnology Ecology Food Science
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” <i>Rickettsiales</i> : an Overview of the Family “ <i>Candidatus</i> Midichloriaceae”

Citation
Giannotti et al. (2022). Applied and Environmental Microbiology 88 (6)
Names
Ca. Midichloriaceae
Subjects
Applied Microbiology and Biotechnology Biotechnology Ecology Food Science
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 mitochondria.

<i>Candidatus</i> 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
Subjects
Applied Microbiology and Biotechnology Biotechnology Ecology Food Science
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
Subjects
Applied Microbiology and Biotechnology Biotechnology Ecology Food Science
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
Subjects
Applied Microbiology and Biotechnology Biotechnology Ecology Food Science
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. Sifarchaeota Ca. Sifarchaeum subterraneus Ca. Sifarchaeum marinoarchaea Ca. Sifarchaeum
Subjects
Applied Microbiology and Biotechnology Biotechnology Ecology Food Science
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.

“ Candidatus Liberibacter asiaticus” Secretes Nonclassically Secreted Proteins That Suppress Host Hypersensitive Cell Death and Induce Expression of Plant Pathogenesis-Related Proteins

Citation
Du et al. (2021). Applied and Environmental Microbiology 87 (8)
Names
Ca. Liberibacter asiaticus
Subjects
Applied Microbiology and Biotechnology Biotechnology Ecology Food Science
Abstract
In this study, we present a combined computational and experimental methodology that allows a rapid and efficient identification of the ncSecPs from bacteria, in particular the unculturable bacteria like CLas. Meanwhile, the study determined that a number of CLas ncSecPs suppressed HR-based cell death, and thus indicated a novel role for the bacterial ncSecPs in extracellular milieu.

The Actin Cytoskeleton Mediates Transmission of “ Candidatus Liberibacter solanacearum” by the Carrot Psyllid

Citation
Sarkar et al. (2021). Applied and Environmental Microbiology 87 (3)
Names
“Liberibacter solanacearum”
Subjects
Applied Microbiology and Biotechnology Biotechnology Ecology Food Science
Abstract
Plant diseases caused by vector-borne pathogens are responsible for tremendous losses and threaten some of the most important agricultural crops. A good example is the citrus greening disease, which is caused by bacteria of the genus Liberibacter and is transmitted by psyllids; it has devastated the citrus industry in the United States, China, and Brazil.

Revealing the Metabolic Flexibility of “ Candidatus Accumulibacter phosphatis” through Redox Cofactor Analysis and Metabolic Network Modeling

Citation
Guedes da Silva et al. (2020). Applied and Environmental Microbiology 86 (24)
Names
Ca. Accumulibacter phosphatis
Subjects
Applied Microbiology and Biotechnology Biotechnology Ecology Food Science
Abstract
Here, we demonstrate how microbial storage metabolism can adjust to a wide range of environmental conditions. Such flexibility generates a selective advantage under fluctuating environmental conditions. It can also explain the different observations reported in PAO literature, including the capacity of “ Ca . Accumulibacter phosphatis” to act like glycogen-accumulating organisms (GAOs). These observations stem from slightly different experimental conditions, and controversy arises only when one assumes that metabolism can operate only in a single mode. Furthermore, we also show how the study of metabolic strategies is possible when combining omics data with functional cofactor assays and modeling. Genomic information can only provide the potential of a microorganism. The environmental context and other complementary approaches are still needed to study and predict the functional expression of such metabolic potential.