Cell selection for increasing resistance of ornamental plants to copper.

Cell selection was used to obtain copper-resistant plants. Developed technologies for obtaining copper-resistant plants Agrostis stolonifera and Chrysanthemum carinatum can be applied to other plant species. We obtained copper-resistant plants Festuca rubra, Brachycome iberidifolia and Linum perenne.

 sp. nov. (Bacillariophyceae) - a new monoraphid diatom species from Indonesia.

A new monoraphid diatom species is described from Indonesia. The description is based on molecular data (18SV4), morphological analysis and comparison with similar species. According to molecular data, sp.

Investigation of Chemical Constituents of (Ranunculaceae): Coumarins and Furochromones.

Aqueous-ethanol extracts (70%) from the leaves of Regel. (Ranunculaceae Juss.)-collected from natural populations of Kyrgyzstan-were studied by liquid chromatography with high-resolution mass spectrometry (LC-HRMS).

Cloning and Characterization of Two Putative P-Type ATPases from the Marine Microalga Similar to Plant H-ATPases and Their Gene Expression Analysis under Conditions of Hyperosmotic Salt Shock.

The green microalga genus is mostly comprised of species that exhibit a wide range of salinity tolerance, including inhabitants of hyperhaline reservoirs. Na content in cells inhabiting saline environments is maintained at a fairly low level, comparable to that in the cells of freshwater organisms. However, despite a long history of studying the physiological and molecular mechanisms that ensure the ability of halotolerant species to survive at high concentrations of NaCl, the question of how cells remove excess Na ions entering from the environment is still debatable.

The features of the fatty acid composition of Pyrus L. total lipids are determined by mountain ecosystem conditions.

The composition of fatty acids (FAs) of total lipids of pericarp, seeds, and leaves of Pyrus caucasica Fed. and Pyrus communis L. growing in mountain ecosystems at different altitudes (300, 700 and 1200 m) was studied.

Expression of Cytochrome c3 from in Plant Leaves Enhances Uranium Uptake and Tolerance of Tobacco.

Cytochrome c3 (uranyl reductase) from can reduce uranium in bacterial cells and in cell-free systems. This gene was introduced in tobacco under control of the RbcS promoter, and the resulting transgenic plants accumulated uranium when grown on a uranyl ion containing medium. The uptaken uranium was detected by EM in chloroplasts.

- a new species from Transbaikal area (Russia, Siberia) described on the basis of molecular and morphological investigation.

A new cymbelloid diatom species from the genus (Krammer) Krammer is described on the basis of molecular and morphological investigations. Glushchenko, Kulikovskiy & Kociolek, is, on the basis of results with molecular data, close to (Auerswald ex Heiberg) Krammer. The two species differ both by molecular distance and morphological features.

Influence of Light Conditions on Microalgae Growth and Content of Lipids, Carotenoids, and Fatty Acid Composition.

Microalgae are a valuable natural resource for a variety of value-added products. The growth of microalgae is determined by the impact of many factors, but, from the point of view of the implementation of autotrophic growth, light is of primary importance. This work presents an overview of the influence of light conditions on the growth of microalgae, the content of lipids, carotenoids, and the composition of fatty acids in their biomass, taking into account parameters such as the intensity, duration of lighting, and use of rays of different spectral composition.

Lipid accumulation by Coelastrella multistriata (Scenedesmaceae, Sphaeropleales) during nitrogen and phosphorus starvation.

A novel freshwater strain of Coelastrella multistriata MZ-Ch23 was discovered in Tula region, Russia. The identification is based on morphological features, phylogenetic analysis of SSU rDNA gene and ITS1-5.8S rDNA-ITS2 region and predicted secondary structure of the ITS2.

Ornamental plants adapted to urban ecosystem pollution: lawn grasses tolerating deicing reagents.

Deicing reagents are priority soil pollutants in urban ecosystems. Sodium chloride is one of the priority deicing reagents. Sodium chloride is limiting the spread of lawn grass.

Differential Zn and Mn sensitivity of microalgae species from genera Bracteacoccus and Lobosphaera.

One of the most common pollutants in natural ecosystems is heavy metals. Algae are sensitive to the action of heavy metals. This allows to use algae to assess the toxicity of heavy metals, bioindication, and during phycoremediation.

High Resistance of Potato to Early Blight Is Achieved by Expression of the Gene for Hevein-Like Antimicrobial Peptides from Common Chickweed ().

In the common chickweed , two antimicrobial peptides (AMPs), SmAMP1.1a and SmAMP1.2a, have been shown to be proteolytically released as products of the expression of a single gene, .

Effect of thiamethoxam on photosynthetic pigments and primary photosynthetic reactions in two maize genotypes (Zea mays).

Neonicotinoid insecticides are used against the wide range of pests to protect plants. The influence of neonicotinoids on target and non-target insects is well understood. Hence, there are controversial opinions about the effect of neonicotinoids on the plants.

Hairy Roots of spp. () as Promising Producers of Antiviral Flavones.

We measured and studied the growth parameters and the qualitative and quantitative composition of the flavones of hairy roots of the genus: , and . Hairy roots were obtained using wild-type A4 by co-cultivation of explants (cotyledons) in a suspension of . The presence of the -genes was confirmed by PCR analysis.

Diversity of Cyanobacteria and Algae During Primary Succession in Iron Ore Tailing Dumps.

The extraction of commercial minerals is often accompanied by the formation of large areas of quarry and dump technogenic ecosystems. This stimulates the search for measures to reduce their negative impact on the environment, as well as a detailed study of all the constituent elements of ecosystems that spontaneously or after reclamation form on them. Primary stages of syngenesis on the tailing dumps of iron ore mines in Kryvorizhzhia took place involving cyanobacteria and eukaryotic algae.

Elevated Atmospheric CO Concentration Improved C Xero-Halophyte Physiological Performance under Saline Conditions.

A significant increase in atmospheric CO concentration and associated climate aridization and soil salinity are factors affecting the growth, development, productivity, and stress responses of plants. In this study, the effect of ambient (400 ppm) and elevated (800 ppm) CO concentrations were evaluated on the C xero-halophyte treated with moderate salinity (200 mM NaCl) and polyethylene glycol (PEG)-induced osmotic stress. Our results indicated that plants grown at elevated CO concentration had different responses to osmotic stress and salinity.

sp. nov. - a new monoraphid diatom (Bacillariophyceae) species, described on the basis of molecular and morphological approaches.

A new monoraphid diatom species Tseplik, Kulikovskiy, Kociolek & Maltsev, is described from Indonesia. The species is described on the basis of molecular and morphological analyses. According to molecular data the new species belongs to the clade that includes strains of , and .

Effect of salt stress on physiological parameters of microalgae Vischeria punctata strain IPPAS H-242, a superproducer of eicosapentaenoic acid.

The strain IPPAS H-242 is an eustigmatophycean alga with good growth characteristics and high content of the long chain polyunsaturated eicosapentaenoic fatty acid (EPA) - a very-long-chain fatty acid with high nutraceutical value. In this study, based on 18S rRNA gene and ITS1-5.8S-ITS2 sequences the strain IPPAS H-242 was identified as an authentic strain of Vischeria punctata.

Current understanding of plant zinc homeostasis regulation mechanisms.

The essential nature of Zn and widespread Zn deficiency in plants under field conditions underlie the great interest of researchers in the regulation of plant Zn homeostasis. Here, the current knowledge of plant Zn homeostasis regulation, mainly in A. thaliana, is reviewed.

Quantitative analysis of differential dehydrin regulation in pine and spruce seedlings under water deficit.

Dehydrins are well-known components of plant responses to different stresses that cause dehydration, including drought, freezing, salinity, etc. In conifers, the dehydrin gene family is very large, implying that the members of this family have important physiological functions in conifer stress tolerance. However, dehydrin gene expression displays a wide range of responses to stress, from thousand-fold increased expression to decreased expression, and it is generally unknown how regulatory systems are connected at the mRNA and protein levels.

Biogeography of the cosmopolitan terrestrial diatom Hantzschia amphioxys sensu lato based on molecular and morphological data.

Until now, the reported diversity of representatives from the genus Hantzschia inhabiting soils from different parts of Eurasia was limited to the few species H. amphioxys, H. elongata and H.

Involvement of plasma membrane H-ATPase in diamide-induced extracellular alkalization by roots from pea seedlings.

The plasma membrane H-ATPase can be considered as a redox-dependent enzyme, because diamide-mediated inhibition of its hydrolytic and transport activities is accompanied by alkalization of the rhizosphere and retardation of root growth. Plasma membranes were isolated from roots of etiolated pea seedlings treated in the presence of an oxidant-diamide and an inhibitor of redox-sensitive protein phosphatase-phenylarsine oxide. Hydrolytic and proton transport activities of H-ATPase were determined.

A New Species of Freshwater Algae Nephrochlamys yushanlensis sp. nov. (Selenastraceae, Sphaeropleales) and Its Lipid Accumulation during Nitrogen and Phosphorus Starvation.

The new species Nephrochlamys yushanlensis sp. nov. is described from a freshwater plankton sample.