Anaerobic Degradation of the Invasive Weed L. () and Copper Immobilization by a Community of Sulfate-Reducing and Methane-Producing Bacteria.

The weed L. poses a global threat to the environment as it spreads uncontrollably on roadsides, in forests, fields, meadows, and farmland. Goldenrod emits toxic substances that suppress other plants on the site, displacing wild ones.

Draft Genome Sequences of Six Strains Isolated from the Rhizosphere of Wheat Grown in Cadmium-Contaminated Soil.

This study presents high-quality draft genome assemblies of six bacterial strains isolated from the roots of wheat grown in soil contaminated with cadmium. The results of this study will help to elucidate at the molecular level how heavy metals affect interactions between beneficial rhizobacteria and crop plants.

Draft whole genome sequence for four highly copper resistant soil isolates s strain UKR1, strain UKR2, and strains UKR3 and UKR4.

Environmental copper pollution causes major destruction to ecological systems, which require the development of environmentally friendly biotechnological, in particular, microbial methods for copper removal. These methods rely on the availability of microorganisms resistant to high levels of copper. Here we isolated four bacterial strains with record resistance to up to 1.

PHYLOGENETIC ANALYSIS AND AUTECOLOGY OF SPORE-FORMING BACTERIA FROM HYPERSALINE ENVIRONMENTS.

Multi-resistant to extreme factors spore-forming bacteria of Bacillus genus are isolated from hypersaline environments of the Crimea (Ukraine) and the Dead Sea (Israel). Phylogenetic analysis showed distinction of dominating extremophilic culturable species in studied regions. In Crimean environments they are B.

THE REGULARITIES OF IRON COMPOUNDS TRANSFORMATION BY CITROBACTER FREUNDII MI-31.1/1.

The purpose ofthe work was to study the regularities ofFe(III) compounds reduction under the conditions of limited aeration by the strain Citrobacterfreundii Ml-31.1/1, and to assess the role ofFe(II)-reducing bacteria (FRB) in iron compounds transformation in ecosystems. The following methods were used: cultivation of microorganisms under the conditions of limited aeration, colorimetric determination ofbiomass and Fe(III) and Fe(I) compounds concentra- tion, the potentiometric measuring ofpH and Eh, gas chromatography.

THE WIDESPREAD OF Fe(III)-REDUCING BACTERIA IN NATURAL ECOSYSTEMS OF ECUADOR.

The widespread of Fe(III)-reducing microorganisms in natural ecosystems of Ecuador of La Favorita, Tungurahua volcano and Papallacta areas was experimentally proved. High efficiency of microbial precipitation of soluble iron compounds was also demonstrated. Obtained results indicate the potential ability of Fe(III)-reducing microorganisms to influence the formation of carbon and iron vector fluxes in ecosystems, as well as development of effective biotechnologies of water purification from iron compounds.

RESISTANCE OF MICROBIAL COMMUNITIES FROM ECUADOR ECOSYSTEMS TO REPRESENTATIVE TOXIC METALS - CrO4(2-), Co2+, Ni2+, Cu2+, Hg2+.

Microbial communities of the Ecuadorian Andes and volcano Tungurahua were shown to be super resistant to representative toxic metals. Maximum permissible concentrations of toxic metals were 100 ppm of Hg2+, 500 ppm of Co2+ and Ni2+, 1000 and 1500 ppm of Cr(VI), 10000 and 20000 ppm of Cu2+. The effect of metal concentration increasing on the biomass growth, CO2 and H2 synthesis was investigated.

THE EFFECT OF P-NITROCHLOROBENZENE ON HOMEOSTASIS QUANTITATIVE PARAMETERS OF KARST CAVE CLAYS AND ECUADOR SOILS MICROBIAL COMMUNITIES.

In this paper it was given the effect of p-nitrochlorobenzene (NCB) on the homeostasis quantitative parameters of cave clays microbial communities from Western Ukraine and Abkhazia (Mushkarova Yama, Kuybushevskaya) and soils of Ecuador tropical ecosystems. For these microbial communities were determined maximum permissible concentrations and types of responses on xenobiotic. Microbial communities of Mushkarova Yama cave clays and rainforest soils of Ecuador were characterized by the first type of response.

Autecology of microorganisms of typical Ecuador biotopes.

34 strains of aerobic chemoorganotrophic microorganisms were isolated from 23 soil and plant samples selected from highland biotopes of Ecuador-Andes massif (Papallacta, 4020 m), ash at the foot of the volcano Tungurahua, mountainous jungle (La Favorita, 1600 m), as well as in humid tropic botanical garden (state Puyo, 950 m). In mountain jungle samples the high number of bacteria--10(5)-10(7) CFU/g of sample were represented by 2-5 morphotypes. In highland (4020 m) samples the bacterial counts made from 10(2) to 10(7) CFU/g of sample.

Ecophysiological properties of cultivable heterotrophic bacteria and yeasts dominating in phytocenoses of Galindez Island, maritime Antarctica.

Antarctic plants are stable specific microenvironments for microbial colonization that are still less explored. In this study, we investigated cultivable heterotrophic bacteria and yeasts dominating in plant samples collected from different terrestrial biotopes near Ukrainian Antarctic Base on Galindez Island, maritime Antarctica. Phylogenetic analysis revealed affiliation of the bacterial isolates to genera Pseudomonas, Stenotrophomonas, Brevundimonas, Sporosarcina, Dermacoccus, Microbacterium, Rothia and Frondihabitans, and the yeast isolates to genera Rhodosporidium, Cryptococcus, Leucosporidiella, Candida and Exophiala.

[Effect of cultivation parameters of antarctic strains Enterobacter hormaechei and Brevibacterium antarcticumon resistant to copper(II) ions].

Enterobacter hormaechei and Brevibacterium antarcticum strains isolated from ornithogenic soils of Galindez Island (West Antarctica) were investigated for their resistance to Cu2+ cations and for their capacity to Cu2+ uptake from the environment. The studied strains are capable to grow in the concentration range of copper 100-1100 mg/l and to extract 11-75% of Cu2+ from the environment depending on cultivation parameters and copper output concentration in the culture medium.

[Taxonomic contribution and antagonistic properties of antarctic fluorescent bacteria of Pseudomonas genus].

Fifty (50) strains of Pseudomonas genus have been isolated from the samples of soil, moss and bottom sediments taken on the Galindes, Piterman and Deception Islands (Ukrainian Antarctic station Akademik Vernadsky). Characteristic of the above strains by 84 phenotype features and identification by means of the computer program permitted them to be referred to the species Pseudomonas fluorescens (biovar V.), P.