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Search results for: SUKCESJA BAKTERII
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RecA Proteins from Deinococcus geothermalis and Deinococcus murrayi - Cloning, Purification and Biochemical Characterisation
PublicationEscherichia coli RecA plays a crucial role in recombinational processes, the induction of SOS response and mutagenic lesion bypasses. It has also been demonstrated that RecA protein is indispensable when it comes to the reassembly of shattered chromosomes in gamma-irradiated Deinococcus radiodurans, one of the most radiation-resistant organisms known. Moreover, some functional differences between E. coli and D. radiodurans RecA...
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Genetic and biochemical characterization of yeasts isolated from Antarctic soil samples
PublicationThe Polish Arctowski Station is situated in the maritime Antarctic on the western shore ot' Admiralty Bay and encompasses terrestrial habitats which are not perma-nently covered by ice, in contrast to morę than 90% of the island's surface area. Over the past several decades, stud-ies exploring the soils of those habitats have revealed a considerable diversity of bacteria, filamentous fungi, and, to a lesser extent, yeasts; however,...
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The selective salinity and hydrazine parameters for the start-up of non-anammox-specific biomass SBR
PublicationThe presence of ammonium (NH 4+ ) in wastewater above the permissible limits leads to undesirable ecological impact and public health concerns. In this study, the anaerobic ammonium oxidizing (anammox) bacteria-mediated nitrogen removal was investigated using a sequential batch reactor (SBR). Effects of different salinity levels were evaluated on the bacterial activity at: mild (below 0.2 g NaCl/L), elevated (18.2 g NaCl/L) and...
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Nanoparticle-assisted biohydrogen production from pretreated food industry wastewater sludge: Microbial community shifts in batch and continuous processes
PublicationBiohydrogen production from industrial waste has gained a significant attention as a sustainable energy source. In this study, the enrichment of biohydrogen production from pretreated dissolved air flotation (DAF) sludge, generated from food industry wastewater treatment plants, was investigated using SiO2@Cu-Ag dendrites cor- e–shell nanostructure (NS). The effect of NS on the changes of the microbial community and biohydrogen...
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Removal of selected sulfonamides and sulfonamide resistance genes from wastewater in full-scale constructed wetlands
PublicationSulfonamides are high-consumption antibiotics that reach the aquatic environment. The threat related to their presence in wastewater and the environment is not only associated with their antibacterial properties, but also with risk of the spread of drug resistance in bacteria. Therefore, the aim of this work was to evaluate the occurrence of eight commonly used sulfonamides, sulfonamide resistance genes (sul1–3) and integrase genes...
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Combined partial denitrification/anammox process for nitrogen removal in wastewater treatment
PublicationRecently, the combined partial denitrification and anammox (PD/anammox) has received special attention as a viable alternative for N removal using organic matter present in municipal wastewater. In comparison with conventional nitrification-denitrification, PD/anammox provides enormous opportunities to achieve sustainable wastewater treatment due to the lack of dissolved oxygen (DO) demand, a smaller amount of organic carbon (C)...
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Addressing challenges of BiVO4 light-harvesting ability through vanadium precursor engineering and sub-nanoclusters deposition for peroxymonosulfate-assisted photocatalytic pharmaceuticals removal
PublicationIn this study, we present a complex approach for increasing light utilisation and peroxymonosulfate (PMS) activation in BiVO4-based photocatalyst. This involves two key considerations: the design of the precursor for BiVO4 synthesis and interface engineering through CuOx sub-nanoclusters deposition. The designed precursor of ammonium methavanadate (NH4VO3, NHV) leads to reduction in particle size, better dispersion and improved light...
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Coupling transformation of carbon, nitrogen and sulfur in a long-term operated full-scale constructed wetland
PublicationThe coupling transformation of carbon, nitrogen and sulfur compounds has been studied in lab-scale and pilot-scale constructed wetlands (CWs), but few studies investigated full-scale CW. In this study, we used batch experiments to investigate the potentials of carbon, nitrogen and sulfur transformation in a long-term operated, full-scale horizontal subsurface flow wetland. The sediments collected from the HSFW were incubated for...
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Cytocompatibility, antibacterial, and corrosion properties of chitosan/polymethacrylates and chitosan/poly(4‐vinylpyridine) smart coatings, electrophoretically deposited on nanosilver‐decorated titania nanotubes
PublicationThe development of novel implants subjected to surface modification to achieve high osteointegration properties at simultaneous antimicrobial activity is a highly current problem. This study involved different surface treatments of titanium surface, mainly by electrochemical oxidation to produce a nanotubular oxide layer (TNTs), a subsequent electrochemical reduction of silver nitrate and decoration of a nanotubular surface with...
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Elucidation of chemical compounds in different extracts of two Lavandula taxa and their biological potentials: Walking with versatile agents on the road from nature to functional applications
PublicationDue to their health-promoting and nutraceutical properties, lavenders are frequently employed in the food and pharmaceutical industries. Here, we focused on investigate the chemical profile of hexane, MeOH, and water extracts of leaf, flower, and root of L. pedunculata and L. stoechas and to assess their antioxidant, enzyme inhibitory, and antibacterial properties. The highest total polyphenolic and flavonoids contents were recorded...
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Osteoblast and bacterial cell response on RGD peptide‐functionalized chitosan coatings electrophoretically deposited from different suspensions on Ti13Nb13Zr alloy
PublicationMetallic materials for long-term load-bearing implants still do not provide high antimicrobial activity while maintaining strong compatibility with bone cells. This study aimed to modify the surface of Ti13Nb13Zr alloy by electrophoretic deposition of a chitosan coating with a covalently attached Arg-Gly-Asp (RGD) peptide. The suspensions for coating deposition were prepared in two different ways either using hydroxyacetic acid...
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Environmental characteristics of a tundra river system in Svalbard. Part 1: Bacterial abundance, community structure and nutrient levels
PublicationThe Arctic hosts a set of unique ecosystems, characterised by extreme environmental conditions and undergoing a rapid change resulting from the average temperature rising. We present a study on an aquatic ecosystem of the Revelva catchment (Spitsbergen), based on samples collected from the lake, river and their tributaries, in the summer of 2016. The landscape variety of the study site and the seasonal change in the hydrological...
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Polyurethane based hybrid ciprofloxacin-releasing wound dressings designed for skin engineering purpose
PublicationPurpose Even in the 21st century, chronic wounds still pose a major challenge due to potentially inappropriate treatment options, so the latest wound dressings are hybrid systems that enable clinical management, such as a hybrid of hydrogels, antibiotics and polymers. These wound dressings are mainly used for chronic and complex wounds, which can easily be infected by bacteria. Materials and methods Six Composite Porous Matrices...
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Electrochemical oxidation of landfill leachate using boron-doped diamond anodes: pollution degradation rate, energy efficiency and toxicity assessment
PublicationElectrochemical oxidation (EO), due to high efficiency and small carbon footprint, is regarded as an attractive option for on-site treatment of highly contaminated wastewater. This work shows the effectiveness of EO using three boron-doped diamond electrodes (BDDs) in sustainable management of landfill leachate (LL). The effect of the applied current density (25–100 mA cm−2) and boron doping concentration (B/C ratio: 500 ppm, 10,000...
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#CiekawiNauki [ONLINE]
Events9. spotkanie z cyklu #CiekawiNauki poświęcone będzie aplikacjom wspomagającym rozwój dzieci z zaburzeniami ze spectrum autyzmu. Transmisje na żywo: www.facebook.com/PolitechnikaOtwarta oraz www.youtube.com.
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Sposób otrzymywania hydroksylowanego oleju sojowego
InventionsPrzedmiotem wynalazku jest sposób otrzymywania hydroksylowanego oleju sojowego, przeznaczonego do syntezy elastomerów poliuretanowych. Oleje roślinne wykorzystuje się do produkcji biopaliw, zwłaszcza biodiesli oraz tworzyw sztucznych jako plastyfikatory. Hydroksylację olejów przeprowadza się przy pomocy syntetyków lub bakterii oraz modyfikowanych olejów roślinnych. W sposobie wykorzystuje się...
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Dwa oblicza Świetlnego Festiwalu
PublicationOdbywające się na całym świecie festiwale światła są niepowtarzalną okazją do promocji miast. Ukazują kunszt artystów wykorzystując możliwości dzisiejszej techniki. Największe festiwale światła i dźwięku przyciągają miłośników sztuki w przestrzeni publicznej. Stają się okazją do spojrzenia na świat z innej perspektywy. W czasie festiwali dzięki artystom przestrzeń miast przeobraża się wydobywając, niezauważane na co dzień, walory...
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DNA adduct formation by C-1748, a potent antitumor 4-methyl-1-nitroacridine of lowered toxicity.
Publication4-podstawione 1-nitroakrydyny reprezentują nową grupę pochodnych zsyntetyzowanych na Politechnice Gdańskiej. W porównaniu do macierzystych 1-nitroakrydyn związki te wykazują obniżoną toksyczność i podwyższoną aktywność przeciwnowotworową. Wiodąca pochodna 4-metylo-1-nitroakrydyna o symbolu C-1748 jest obecnie w przygotowaniu do I fazy badań klinicznych w leczeniu raka okrężnicy. Wprowadzenie elektrodonorowej grupy metylowej w...
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Genotyping and characterization of virulence factors in Escherichia coli strains isolated from patients from Polish hospital
PublicationZakażenia układu moczowego (UTIs - ang. urinary track infections) są jedną z najczęstszy infekcji, za które w 85% przypadków odpowiedzialne są bakterie Escherichia coli. Infekcje układu moczowego mogą prowadzić do groźnych powikłań m. in. odmiedniczkowego zapalenia nerek. Śmiertelność wśród tej grupy pacjentów wynosi 1-3%. Zakażenia układu moczowego występują również u ok. 7% kobiet ciężarnych. W pracy przebadano 82 szczepy E....
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Nowe metodyki kontroli procesowej oczyszczania silnie zanieczyszczonych, alkalicznych ścieków przemysłowych.
PublicationŚcieki po-oksydacyjne z produkcji asfaltów naftowych, charakteryzują się wysokim stopniem złowonności oraz eko-toksyczności, głównie przez znaczną zawartość szerokiego spektrum lotnych i średnio-lotnych związków organicznych, w tym związków tleno-, siarko- i azoto-organicznych, a także węglowodorów alifatycznych i aromatycznych. Obecność większości z nich, wpływa negatywnie na bakterie zawarte w osadzie czynnym, w biologicznej...
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Mieszanina 3-chloro-5-hydroksy-2-metylo-1,4-naftochinonu i nanocząstek srebra oraz zastosowanie mieszaniny jako środka przeciwbakteryjnego do zwalczania Pseudomonas aeruginosa
InventionsPrzedmiotem projektu jest mieszanina substancji aktywnych o potencjale przeciwbakteryjnym wobec pałeczki ropy błękitnej, tj. Pseudomonas aeruginosa. P. aeruginosa jest bakteryjnym patogenem człowieka i zwierząt wykazującym szczególną wirulencję oraz charakteryzującym się opornością na wiele substancji, w tym na naftochinony. Dzięki zjawisku aktywacji w wyniku synergistycznych oddziaływań komponentów mieszaniny...
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Zdolni z Pomorza 2019/20 - Genetyka dla wszystkich
e-Learning CoursesCel kursu: Celem kursu jest zapoznanie się z podstawowymi pojęciami z zakresu genetyki człowieka i biologi molekularnej. Uczniowie poznają świat DNA, genów i białek, który rządzi procesami zachodzącymi w naszych organizmach. Opis kursu: W trakcie kursu uczniowie zrozumieją jak zbudowany jest kwas deoksyrybonukleinowy (DNA), jak oddziałuje z białkami i gdzie się znajduje. Przedstawione zostaną podstawowe zagadnienia związane z pojęciem...
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Roztwór srebra koloidalnego i sposób jego wytworzenia
InventionsSrebro znane jest z tego, że wykazuje właściwości bakteriobójcze. Mikroorganizmy, w odróżnieniu od ich reakcji na antybiotyki i inne środki, nie są w stanie nabyć odporności na metale. Obecnie istnieją dwie formy koloidów: zawiesiny koloidalne, koloidy emulsyjne. Przy uch wytworzeniu wydzielają się substancje trujące i potencjalnie niebezpieczne. Wiele z istniejących produktów...
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Application of Biotests
PublicationIntensywny rozwój nowych technologii, postępująca urbanizacja i konsumpcyjny styl życia człowieka wywołują niekorzystne, a niekiedy nawet nieodwracalne zmiany w środowisku. Do powietrza, wód powierzchniowych i gleb dostaje się szeroka gama zanieczyszczeń pochodzących głównie ze źródeł antropogennych. Organizmy żywe funkcjonują w nierozerwalnej sieci powiązań między sobą i otaczającym je środowiskiem. Pomiędzy elementami sieci istnieje...
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Nauczanie na odległość w sektorze MSP na przykładzie projektu MESIMA
PublicationW ostatnich latach warunki, w jakich zmuszone są działać małe i średnie przedsiębiorstwa (MSP) stały się bardzo trudne. W obliczu konkurencji, rosnącej zarówno na globalnych, jak i lokalnych rynkach, przedsiębiorcy zostali zmuszeni do poszukiwania źródeł przewagi konkurencyjnej. Jednym z takich źródeł może być utrzymywanie płynności finansowej przedsiębiorstwa, jako że jedną z największych przeszkód w funkcjonowaniu MSP jest właśnie...
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Nitrogen removal via the nitrite pathway during wastewater co-treatment with ammonia-rich landfill leachates in a sequencing batch reactor
PublicationThe biological treatment of ammonia-rich landfill leachates due to an inadequate C to N ratio requires expensive supplementation of carbon from an external carbon source. In an effort to reduce treatment costs, the objective of the study was to determine the feasibility of nitrogen removal via the nitrite pathway during landfill leachate co-treatment with municipal wastewater. Initially, the laboratory-scale sequencing batch reactor...
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Diversity and distribution of Tardigrada in Arctic cryoconite holes
PublicationDespite the fact that glaciers and ice sheets have been monitored for more than a century, knowledge on the glacial biota remains poor. Cryoconite holes are water-filled reservoirs on a glacier’s surface and one of the most extreme ecosystems for microinvertebrates. Tardigrada, also known as water bears, are a common inhabitant of cryoconite holes. In this paper we present novel data on the morphology, diversity, distribution and...
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Glucosamine-6-phosphate synthase with an oligoHis insert
PublicationGlucosamine-6-phosphate (GlcN-6-P) synthase known also as L-Glutamine: D-fructose-6-phosphate aminotransferase (EC 2.6.1.16), catalyzes the first committed step in the amino sugar biosynthetic pathway in prokaryotic and eukaryotic organisms. The final product of this pathway is an activated precursor of numerous macromolecules containing amino sugars, including chitin and mannproteins in fungi, peptydoglican and lipopolysaccharides...
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B-GALACTOSIDASE ARTHROBACTER SP. 32cB - OBTAINING THE GENE SEQUENCE, CONSTRUCTION OF THE EXPRESSION SYSTEM, BIOSYNTHESIS AND BIOCHEMICAL CHARACTERIZATION OF THE ENZYME
PublicationINTRODUCTION: β-Galactosidase is an enzyme which catalyzes the hydrolysis of O glycosidic bond in β-galactosides. Another activity of β galactosidase is a transglycosylation activity. The main industrial use of this protein is the hydrolysis of lactose in milk in a cooling conditions. Synthesis of galactooligosaccharides, which are mostly used as a prebiotics added to some foods or available as dietary supplements, is only one...
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Desensitization of glucosamine-6-phosphate synthase to inhibition by UDP-GlcNAc
PublicationGlucosamine-6-phosphate (GlcN-6-P) synthase, known also as L-Glutamine: D-fructose-6-phosphate amidotransferase, catalyzes the first committed step in the pathway leading to the ultimate formation of UDP-GlcNAc. The final product of this pathway is an activated precursor of numerous macromolecules containing amino sugars, including chitin and mannproteins in fungi, peptidoglycan and lipopolysaccharides in bacteria, and glycoproteins...
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Tetracycline and ampicillin resistance of Escherichia coli strains of surface water origin: the potential for horizontal transfer of resistance genes = Oporność na tetracyklinę i ampicylinę szczepów Escherichia Coli wyizolowanych z wody powierzchniowej : możliwość horyzontalnego przenoszenia genów oporności
PublicationThe aim of this preliminary study was to assess the occurrence and molecular diversity of tetracycline and ampicillin resistance genes carried by Escherichia coli present in surface water. Bacterial strains were isolated from two watercourses (the Reda River and the Oliwski Stream) that influence the quality of coastal waters in the Gdańsk Bay (Northern Poland) by direct discharge. The bacterial drug susceptibility, tested against...
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Diving boldly into COVID‐19 contaminated wastewater: Eyes at nanotechnology‐assisted solutions
PublicationSeveral studies have been directed to find scalable, swift, accurate, and cost-effective strategies for detecting, monitoring, and treating coronavirus disease 2019 (COVID-19). Indeed, the lack of a fast and practical method for detecting the infected regions makes decision-making challenging to combat the critical pandemic-struck situations. The probable ‘wrong’, or rather inadequate, decisions not only have a boomerang effect...
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White light thermoplasmonic activated gold nanorod arrays enable the photo-thermal disinfection of medical tools from bacterial contamination
PublicationThe outspread of bacterial pathogens causing severe infections and spreading rapidly, especially among hospitalized patients, is worrying and represents a global public health issue. Current disinfection techniques are becoming insufficient to counteract the spread of these pathogens because they carry multiple antibiotic-resistance genes. For this reason, a constant need exists for new technological solutions that rely on physical...
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Molecular identification and genotyping of Staphylococci: genus, species, strains, colnes, lineages, and interspecies exchanges
PublicationStaphylococci are increasingly recognized as etiological agents of many opportunistic human and animal infections, emphasizing the need for a rapid and accurate identification, even to a genotypical level of these bacteria. In the recent years, there has been a significant progress in typing and phylogenetic study of Staphylococcus species. Here, we describe molecular methods used in taxonomy as well as staphylococci characterization....
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Insights into the microbial community of treated wastewater, its year-round variability and impact on the receiver, using cultivation, microscopy and amplicon-based methods
PublicationApart from chemical constituents, wastewater treatment plant (WWTP) effluents also release microorganisms that can be important to the receiving water bodies either from a sanitary point of view, or taking to the account the biogeochemical potential of the recipients. However, little is known about the treated wastewater microbial community, its composition, seasonal changes, functions and fate in the waters of the receiver. Thus,...
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Identification of novel halogenated naturally occurring compounds in marine biota by high-resolution mass spectrometry and combined screening approaches
PublicationMarine animals, plants or bacteria are a source of bioactive naturally-occurring halogenated compounds (NHCs) such as bromophenols (BPs), bromoanisoles (BAs) and hydroxylated or methoxylated analogues of polybrominated diphenyl ethers (HO-PBDEs, MeO-PBDEs) and bromobiphenyls (HO-BBs, MeO-BBs). This study applied a comprehensive screening approach using liquid chromatography high-resolution mass spectrometry and combining target,...
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Zdolni z Pomorza 2017/18 - Teorie kwasów i zasad
e-Learning CoursesCel kursu: Celem kursu jest zapoznanie uczniów z teoriami mającymi na celu opis substancji o właściwościach kwasowych i zasadowych. Uczniowie poznają również praktyczne aspekty wykorzystania tej grupy związków. Opis kursu: W czasach starożytnych sprawa wydawała się prosta: albo coś charakteryzowało się kwaśnym smakiem, albo nie. Potrzeba było jednak stuleci prac alchemików, filozofów przyrody i chemików, aby wyjaśnić ich naturę...
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Milena Marycz dr inż.
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Otzrymywanie i charakterystyka nowych biomateriałów o aktywności przeciwdrobnoustrojowej na bazie chitozanu, kolagenu i żelatyny
PublicationW niniejszej pracy przedstawiono opis wyników badań poświęconych otrzymywaniu i charakterystyce biomateriałów zbudowanych z chitozanu, kolagenu i żelatyny, o strukturze i właściwościach wymaganych od nowoczesnego materiału opatrunkowego, stanowiącego jednocześnie dogodną matrycę do inkorporacji związków biologicznie czynnych, zwłaszcza lizostafyny. Opracowane materiały stanowią także próbę odpowiedzi na potrzeby medyczne dotyczące...
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PORÓWNANIE SKUTECZNOŚCI DEZODORYZACJI POWIETRZA METODAMI BIOLOGICZNYMI
PublicationProblematyka uciążliwości zapachowej, wywołanej emisjami substancji odorotwórczych z różnych źródeł, stanowi ważny problem społeczno – środowiskowy. Związki o charakterze odorowym są emitowane z wielu sektorów działalności człowieka, m.in. z zakładów oczyszczania ścieków i składowisk odpadów komunalnych. Związki te mogą być usuwane w procesach fizycznych, chemicznych i biologicznych. Ze względu na niskie koszty eksploatacyjne oraz...
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Mieszanina 3,5-dihydroksy-2-metylo-1,4-naftochinonu i nanocząstek srebra oraz zastosowanie mieszaniny jako środka przeciwbakteryjnego do zwalczania Pseudomonas aeruginosa
InventionsPrzedmiotem wynalazku jest mieszanina substancji aktywnych o potencjale przeciwbakteryjnym wobec pałeczki ropy błękitnej, tj. Pseudomonas aeruginosa. P. aeruginosa jest bakteryjnym patogenem człowieka i zwierząt wykazującym szczególną wirulencję oraz charakteryzującym się opornością na wiele substancji, w tym na naftochinony. Dzięki zjawisku aktywacji w wyniku synergistycznych oddziaływań komponentów...
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Antimicrobial resistance of fecal indicators in muncipal wastewater treatment plant
PublicationAntimicrobial resistance of fecal coliforms (n = 153) and enterococci (n = 199) isolates was investigated in municipal wastewater treatment plant (WWTP) based on activated sludge system. The number of fecal indicators (in influent and effluent as well as in the aeration chamber and in return activated sludge mixture) was determined using selective media. Susceptibility of selected strains was tested against 19 (aminoglycosides,...
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Modeling external carbon addition in combined N-P activated sludge systems with an extension of the IWA Activated Sludge Models
PublicationThe aim of this study was to expand the IWA Activated Sludge Model No. 2d (ASM2d) to account for a newly defined readily biodegradable substrate that can be consumed by polyphosphate accumulating organisms (PAOs) under anoxic and aerobic conditions, but not under anaerobic conditions. The model change was to add a new substrate component and process terms for its use by PAOs and other heterotrophic bacteria under anoxic and aerobic...
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Modeling external carbon addition in combined N-P activated sludge systems with an extension of the IWA Activated Sludge Models
PublicationThe aim of this study was to expand the IWA Activated Sludge Model No. 2d (ASM2d) to account for a newly defined readily biodegradable substrate that can be consumed by polyphosphate accumulating organisms (PAOs) under anoxic and aerobic conditions, but not under anaerobic conditions. The model change was to add a new substrate component and process terms for its use by PAOs and other heterotrophic bacteria under anoxic and aerobic...
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Possibility of Using Tea Fungus for Fermentation of Beetroot and Carrot Pomace Beverages
PublicationFermented beverages obtained from plant-based raw materials are becoming more popular due to their beneficial effects on human health. These include kombucha beverages, which are obtained by fermenting tea brew using the so-called tea fungus, which includes acetic acid bacteria and osmophilic yeast. A consortium of these microorganisms could also be used to prepare functional fermented beverages obtained from extracts of vegetable...
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Photosensitization of TiO2 and SnO2 by Artificial Self-Assembling Mimics of the Natural Chlorosomal Bacteriochlorophylls
PublicationOf all known photosynthetic organisms, the green sulfur bacteria are able to survive under the lowest illumination conditions due to highly efficient photon management and exciton transport enabled by their special organelles, the chlorosomes, which consist mainly of self-assembled bacteriochlorophyll c, d, or e molecules. A challenging task is to mimic the principle of self-assembling chromophores in artificial light-harvesting...
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Antibiotic resistance, virulence, and phylogenetic analysis of Escherichia coli strains isolated from free-living birds in human habitats
PublicationWild birds can be colonized by bacteria, which are often resistant to antibiotics and have various virulence profiles. The aim of this study was to analyze antibiotic resistance mechanisms and virulence profiles in relation to the phylogenetic group of E. coli strains that were isolated from the GI tract of wildfowl. Out of 241 faecal samples, presence of E. coli resistant to a cephalosporin (ESBL/AmpC) was estimated for 33 isolates...
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Comparing the permeability of human and porcine small intestinal mucus for particle transport studies
PublicationThe gastrointestinal mucus layer represents the last barrier between ingested food or orally administered pharmaceuticals and the mucosal epithelium. This complex gel structure plays an important role in the process of small intestinal absorption. It provides protection against hazardous particles such as bacteria but allows the passage of nutrients and drug molecules towards the intestinal epithelium. In scientific research, mucus...
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A Perspective on Missing Aspects in Ongoing Purification Research towards Melissa officinalis
PublicationMelissa officinalis L. is a medicinal plant used worldwide for ethno-medical purposes. Today, it is grown everywhere; while it is known to originate from Southern Europe, it is now found around the world, from North America to New Zealand. The biological properties of this medicinal plant are mainly related to its high content of phytochemical (bioactive) compounds, such as flavonoids, polyphenolic compounds, aldehydes, glycosides...
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The microbial community, its biochemical potential, and the antimicrobial resistance of Enterococcus spp. in Arctic lakes under natural and anthropogenic impact (West Spitsbergen)
PublicationThe sustainable management of small human communities in the Arctic is challenging. In this study, both a water supply system (Lake 1) under the natural impact of a bird-nesting area, and a wastewater receiver (Lake 2) were analysed in the vicinity of the Polish Polar Station on West Spitsbergen. Microbial community composition, abundance and activity were assessed in samples of the treated wastewater, lake water and sediments...