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The effect of hypomagnetic field on survival and mitochondrial functionality of active Paramacrobiotus experimentalis females and males of different age
Even for tardigrades, often called the toughest animals on Earth, a hypomagnetic field (HMF) is an extreme environment. However, studies on the effect of HMF on tardigrades and other invertebrates are scarce. Mitochondria play an important role in an organism’s response to extreme conditions. The effect of HMF on the mitochondrial inner membrane potential (Δψ), a well-known marker of mitochondria functionality, shows that mitochondria are very sensitive to HMF. To measure the HMF effect on Paramacrobiotus experimentalis, we calculated the tardigrade survival rate and Δψ level after HMF treatments of different durations. We also estimated the relationship between the age and sex of the tardigrade and the HMF effect. We observed age- and sex-related differences in Δψ and found that Δψ changes after HMF treatment were dependent on its duration as well as the animal’s age and sex. Furthermore, active P. experimentalis individuals displayed a high survival rate after HMF treatment. The data may contribute to the understanding of tardigrade aging and their resistance to extreme conditions including HMF, which in turn may be useful for future space explorations.
Content of elements in contemporary and archaeological wood as a marker of possible change in physico-chemical parameters
Lactarius and Russula mushroom genera – Similarities/differences in mineral composition within the Russulaceae family
Patterns of changes in the mineral composition of Agaricus bisporus cultivated in Poland between 1977 and 2020
Wild-grown, tissue-cultured, and market Pleurotus ostreatus: Implications for chemical characteristics
Observed and estimated taxonomic diversity of different groups of aquatic organisms in the pristine rivers in the Biebrza National Park
Atmosfera pod presją: Jakie są zależności pomiędzy warunkami meteorologicznymi a poziomem zanieczyszczenia powietrza w Poznaniu w dekadzie 2012-2022?
Linking soil properties to elemental uptake patterns: species-specific accumulation in Boletales mushrooms
Rare earth elements and landscape: Is there a relationship between them? – New evidence from Poland (Eastern Europe)
Trace of negative changes in environment recorded in cores of trees growing near busy city roads in Poznań, Poland – dendromonitoring of urban pollution
Copper, lead and zinc interactions during phytoextraction using Acer platanoides L. - a pot trial
AbstractOf the many environmental factors that modulate the phytoextraction of elements, little has been learnt about the role of metal interactions. The study aimed to show how different concentrations of Cu, Pb and Zn in the cultivation medium influenced the biomass, plant development and phytoextraction abilities ofAcer platanoidesL. seedlings. Additionally, the impact on the content and distribution of Ca, K, Mg and Na in plant parts was studied with an analysis of phenols. Plants treated with a mixture of two metals were characterised by lower biomass of leaves and higher major elements content jointly than those grown in the salt of one element. Leaves ofA. platanoidescultivated in Pb5 + Zn1, Pb1 + Zn1and Pb1 + Zn5experimental systems were characterised by specific browning of their edges. The obtained results suggest higher toxicity to leaves of Pb and Zn present simultaneously in Knop solution than Cu and Pb or Cu and Zn, irrespective of the mutual ratio of the concentrations of these elements. Antagonism of Cu and Zn concerning Pb was clearly shown in whole plant biomass when one of these elements was in higher concentration (5 mmol L−1) in solution. In the lowest concentrations (1 mmol L−1), there was a synergism between Cu and Zn in plant roots. Plants exposed to Zn5, Cu1 + Pb5, Pb5 + Zn1and Cu1 + Zn1were characterised by higher total phenolic content than the rest plants. Both the presence and the concentration of other elements in the soil are significant factors that modulate element uptake, total phenolic content, and plant development.Graphical Abstract
Species-specific preferences vs. soil composition impact – interplay in bioaccumulation of elements in edible mycorrhizal mushrooms
Reply to “Comments on “Anthropogenic contamination leads to changes in mineral composition of soil- and tree-growing mushroom species: A case study of urban vs. rural environments and dietary implications”- rare earth elements by Jerzy Falandysz
Urban visual pollution: comparison of two ways of evaluation - a case study from Europe
AbstractVisual pollution by outdoor advertisements (OAs) of the urban landscape in the old town of Gniezno city (Poland) was the main aim of the presented work. For this purpose, the part of Warszawska Street located near the old market was selected. The detailed objective of the work was to evaluate the effect of OA on the building perception and compare two different methods to check the possibility of their interchangeably potential. The city audit and public opinion about selected buildings were performed. The photographs with and without OAs were also analyzed. The statistical analysis was performed to find the significant differences between these two methods and define differences between groups of respondents. In general, the results revealed the strong effect of the building quality (condition and appearance of the building) on the final score of the building perception. This was valid for both evaluation methods. The significant differences between building perception with and without OAs and groups of respondents were found only for the building with good facade quality. While, in the case of low-quality buildings the perception of the urban landscape was low regardless of the presence of OAs. Moreover, we can primarily conclude that city audit and survey of public opinion can be used interchangeably.
Temporal arsenic form changes dynamics and accumulation patterns in Tilia cordata Mill. seedlings: Insights into metalloid transformation and tolerance mechanisms in trees
Road traffic and abiotic parameters of underlying soils determine the mineral composition and nutritive value of the mushroom Macrolepiota procera (Scop.) Singer
Potential Impact of Urban Land Use on Microplastic Atmospheric Deposition: A Case Study in Pristina City, Kosovo
Microplastics (MPs) pervade various ecosystems, including urban landscapes. The aim of this study was to determine whether the presence of MPs in atmospheric deposition samples is related to land use. For this purpose, atmospheric deposition was collected from 15 to 25 March 2021 at seven research sites in the city of Pristina (Kosovo). Each research site was characterized by different land use. Collected atmospheric deposition samples were analyzed in the laboratory, and then the filtered samples were assessed using a light microscope. The type and size of microplastics in the samples were defined and statistically analyzed. The highest number of total MPs was noted on the highway, while the lowest one was near to the park. A positive relationship was observed between the number of total MPs and the proportion of areas classified as “roads and associated areas” in the land use of the analyzed research sites. Furthermore, a negative relationship was found between the number of total MPs and the proportion of areas classified as “green urban areas”. Based on our preliminary research, it can be observed that the type of land use may have a key role in MPs’ atmospheric deposition.
