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amoA-based consensus phylogeny of ammonia-oxidizing archaea and deep sequencing of amoA genes from soils of four different geographic regions
TLDR
An archaeal amoA consensus phylogeny is presented based on all publicly available sequences and evidence for the diversification of AOA into four previously recognized clusters and one newly identified major cluster is provided.
An extremely low‐light adapted phototrophic sulfur bacterium from the Black Sea
TLDR
Five strains of a brown phototrophic sulfur bacterium (Chlorobium phaeobacteroides) were isolated from the chemocline of the Black Sea and revealed extreme low-light adaptation of growth compared to 12 other green and purple sulfur bacterial strains.
13,16-Dimethyl Octacosanedioic Acid (iso-Diabolic Acid), a Common Membrane-Spanning Lipid of Acidobacteria Subdivisions 1 and 3
TLDR
Upon both acid and base hydrolyses of total cell material, the uncommon membrane-spanning lipid 13,16-dimethyl octacosanedioic acid (iso-diabolic acid) was released in substantial amounts (22 to 43% of the total fatty acids) from all of the acidobacteria studied.
Physiology and Phylogeny of Green Sulfur Bacteria Forming a Monospecific Phototrophic Assemblage at a Depth of 100 Meters in the Black Sea
TLDR
The stable population of green sulfur bacteria in the Black Sea chemocline represents the most extremely low-light-adapted and slowest-growing type of phototroph known to date.
Life under extreme energy limitation: a synthesis of laboratory- and field-based investigations.
TLDR
Past investigations on microbial energy requirements and adaptations to energy limitation, identify gaps in current knowledge, and outline possible future foci of research on life under extreme energy limitation are discussed.
Identification and characterization of ecologically significant prokaryotes in the sediment of freshwater lakes: molecular and cultivation studies.
TLDR
Traditional and recently developed methods are described which could be used for linking the function of microbial populations with their identification and characterize prokaryotes in lake sediments and related habitats.
A new purple sulfur bacterium from saline littoral sediments, Thiorhodovibrio winogradskyi gen. nov. and sp. nov.
TLDR
Two strains of a new purple sulfur bacterium were isolated in pure culture from the littoral sediment of a saline lake (Mahoney Lake, Canada) and a marine microbial mat from the North Sea island of Mellum, respectively and exhibited high specific respiration rates.
Cyclic AMP and Acyl Homoserine Lactones Increase the Cultivation Efficiency of Heterotrophic Bacteria from the Central Baltic Sea
TLDR
Bacterial cells of strain G100 that were starved for 6 weeks attained a higher growth rate and a higher biomass yield when resuscitated in the presence of cAMP instead of AMP, pointing towards an inherent limitation of the MPN approach, which does not necessarily recover abundant species from highly diverse communities.
Edaphobacter modestus gen. nov., sp. nov., and Edaphobacter aggregans sp. nov., acidobacteria isolated from alpine and forest soils.
TLDR
Two novel strains of acidobacteria were isolated from a co-culture with a methanotrophic bacterium established from calcareous forest soil and assigned to the novel genus Edaphobacter gen. nov, adapted to low carbon concentrations and to neutral to slightly acidic conditions.
Severe COVID-19 Is Marked by a Dysregulated Myeloid Cell Compartment
TLDR
This study provides detailed insights into the systemic immune response to SARS-CoV-2 infection and it reveals profound alterations in the myeloid cell compartment associated with severe COVID-19.
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