Abstract— A bacterial strain CT3 with a unique ability to degrade anthropogenic toxic compounds ε-caprolactam, toluene, and meta-xylene as sole sources of carbon and energy was isolated from the activated sludge of a municipal wastewater treatment plant. Based on sequencing and phylogenetic analysis of its 16S rRNA gene, the isolate was identified as a Pseudomonas putida strain. P. putida strain СТ3

Abstract— Metagenomics of the viromes associated with symbiotic microbial communities is a rapidly expanding field of research. Most of the relevant studies deal with the viral communities of human or animal feces. The novel technology of long-reads sequencing from Oxford Nanopore that became available during the last years provides outstanding new possibilities for research of uncultured viral communities

Abstract— The composition of rhizosphere microbial communities was studied for different species and varieties of agricultural gramineous plants (rye and wheat) grown in the soils contrasting in a number of agrochemical parameters. The data on analysis of the rhizosphere microbial communities obtained by sequencing of the V4 variable region of the 16S rRNA gene and on the ion and mass spectral composition

Abstract— This is the study of efficiency of anaerobic reject water treatment and of changes in the relative abundance of the major microbial groups involved in nitrogen removal at increase in nitrogen and COD (chemical oxygen demand) load. A two-reactor laboratory system carried out anammox and partial nitrification, with the biomass immobilized on a brush carrier and water recycling. Nitrogen concentration

Abstract— The possibility of singlet oxygen generation in five species of photosynthetic bacteria under irradiation with light was studied using the Singlet Oxygen Sensor Green (SOSG) dye that, when singlet oxygen is bound, is transformed into a fluorescent endoperoxide form. Irradiation was carried out using light of different spectral composition: red (absorption of bacteriochlorophyll, BChl) and

Abstract— Anaerobic digestion of municipal and other organic waste is a microbial process for conversion of complex organic substances to biogas (a renewable energy source) comprising a mixture of methane and CO2, and a stabilized sludge, which may be used as an organic fertilizer. Diverse groups of the methanogenic microbial community degrade complex organic compounds into simple fermentation products

Abstract— Relationship between symbiotic yeast and Diptera insects are studied mainly on fruit flies (Drosophilidae). Evolutionary experiments showed that changes in the composition of the yeast microbiota vectored by flies in their gut and on the body surface contributes to the adaptation of laboratory Drosophila populations to the high-salt growth medium. Although saline substrates are not commonly

Abstract— Surface-enhanced Raman scattering of bioorganic compounds close to silver nanoparticles may be used for species identification of microbial colonies. The preparations of silver nanoparticles sol with a single microbial colony (strains Escherichia coli 376/2, Staphylococcus aureus 25923, Pseudomonas aeruginosa ATCC 27583, and Bacillus subtilis 534) exhibited the individual Raman spectra, in

Abstract Phylogenetic analysis of the 16S rRNA gene sequences showed that the type species of the genus Methylarcula, Methylarculamarina h1T was closely related to Paracoccus saliphilus DSM 18447T with high sequence similarity (97.8%). The genome of Methylarcula marina h1T was sequenced and its average nucleotide identity (ANI) and in silico DNA–DNA hybridization with Paracoccus type strains were 72

Abstract— The pmoA gene number is considered as a soil microbiological parameter indicating abundance and potential activity of methanotrophic bacteria. The efficiency of this parameter for prediction and modeling of the real soil methane consumption rates remains an open issue. In the current study rate of methane oxidation by soil at its ambient concentration and the number of the pmoA genes determined

Abstract— Molecular genetic techniques (FISH and metabarcoding) were used to investigate comparative biodiversity in the prokaryotic complex of soil microcosms of gray forest, chestnut, and chernozem soils before and after oil pollution. At the level of high-rank taxonomic units, the structure of prokaryotic communities from different soil types was similar. In oil-polluted microcosms microbial diversity

Abstract Nonsteroidal anti-inflammatory drugs (NSAIDs) are a group of pharmaceuticals widely used for medical and veterinary purposes. NSAIDs have been found in nanograms and micrograms in soil, wastewater, surface water, groundwater, sediments, snow, Antarctic ice, and drinking water. Despite negligible detectable amounts in the environment, NSAIDs have chronic ecotoxic effects on the biotic components

Abstract— We have previously proposed a highly efficient technology for metal recovery from low-grade zinc sulfide concentrate by two-step treatment including ferric iron leaching and biooxidation of the produced ferrous iron to ferric iron (an oxidizer for sulfide minerals). The present work proposes joint biooxidation of the products of ferric leaching of the low-grade zinc concentrate: a solution

Abstract— Compared to free-living relatives, bacterial symbionts of plants exhibit higher rates of population diversification (microevolution), as well as of speciation and formation of super-species taxa (macroevolution). Analysis of rhizobia, the N2-fixing symbionts of leguminous plants, suggests that both evolutionary modes are determined by the hosts, which have mutagenic and recombinogenic effects

Abstract— An express method for measuring biocorrosion of the surface of polyethylene by mono- and multi-species microbial biofilms was developed. The method involves massive inoculation of polyethylene samples with pure microbial cultures or their mixtures, with subsequent incubation for 5‒7 days providing for the biofilm development. The damage to the surface of polyethylene was determined both by

Abstract— Novel aerobic facultatively methylotrophic bacteria were isolated from the water of a freshwater lake (strain F30LT), soil sample of rhizosphere of white clover Trifolium repens L. (strain 1TCT), and rhizosphere of carrot Daucus carota L. (strain Dau2). The isolates were gram-negative, non-spore-forming, nonmotile, pleomorphic/rod-shaped cells, propagating by binary fission; they were facultative

Abstract— Two new strains producing bacterial cellulose were isolated from the Kombucha and Tibicos symbiotic communities. Based on the 16S rRNA gene analysis and the morphological, biochemical, and physiological characteristics, the strains were identified as Komagataeibacter sucrofermentans H 110 and Komagataeibacter hansenii C 110; the strains were deposited to the All-Russian Collection of Industrial

Abstract— This research analyses the structure and functions of bacterial communities of regressive spots in ombrotrophic bogs. Algal biomass was found to predominate in the biomass structure of regressive spots, while fungal mycelial biomass predominated in the layers of non-regressive ombrotrophic bog peat. A number of bacteria in regressive spots determined by direct counts was three to seven times

Abstract— Due to the primary localization of both epiphytic and endophytic plant growth-promoting rhizobacteria on the surface of the plant root system, biofilm formation is an adaptive trait for these microorganisms. Under conditions of nitrogen limitation in liquid media, nitrogen-fixing Azospirillum brasilense strains switch mainly to the biofilm mode of growth. Overall ultrastructural similarities

Abstract— A new approach is described to increasing the numbers of viable cells in long-term stored populations (cultures) of the hydrocarbon-oxidizing bacterium Acinetobacter junii, which involves application of humic substances (HSs). HSs are produced due to condensation and oxidation of phenolic compounds, including alkylresorcinols, factors of intercellular microbial communication with stress-potentiating