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Tytuł:
Charakterystyka ukraińskich oficjalnych nazw grzybów makroskopijnych motywowanych nazwami roślin
Characteristics of Ukrainian and Polish official names of macroscopic fungi motivated by plant names
Autorzy:
Jóźwikiewicz, Przemysław
Powiązania:
https://bibliotekanauki.pl/articles/41151612.pdf
Data publikacji:
2023
Wydawca:
Wyższa Szkoła Gospodarki w Bydgoszczy. Wydawnictwo Uczelniane
Tematy:
Ukrainian language
Latin
names of macroscopic fungi
phytonyms
word-formation
Opis:
The article aims to analyse Ukrainian names of macroscopic fungi containing plant names in their structure. Latin and Polish nomenclatural resources served as a background for the analysis. The nomenclatural corpus extracted from the sources comprised almost 2,000 units, of which 214 were motivated by plant names or, for example, by the names of their individual parts, e.g. Дубовик Кале, Підберезник синіючий, Калоцибе фіалкова, Павутинник каштановий. The analysis proved, among other things, that, in many cases, Ukrainian official names of macroscopic fungi were created due to the automatic transfer of Latin names to the Ukrainian language. The article also focuses on examining the morphological and syntactic structure of myconyms and analysing the derivational procedures used in creating names with phytonymic components.
Źródło:
Heteroglossia- studia kulturoznawczo-filologiczne; 2023, 14; 195-208
2084-1302
Pojawia się w:
Heteroglossia- studia kulturoznawczo-filologiczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ecological Analysis of the Current State of Forest Resources in Forest Steppe of Ukraine
Autorzy:
Beregniak, Evgeniy
Beregniak, Mykhailo
Myronycheva, Olena
Balabak, Alla
Belava, Victoriia
Boroday, Vira
Nedilska, Uliana
Hudyma, Volodymyr
Kucher, Larisa
Voitsekhivskyi, Volodymyr
Powiązania:
https://bibliotekanauki.pl/articles/2202328.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
forest resources
conifer
nature reserve fund
deforestation
forest fire
tree disease
red book species
fungi
Opis:
Forests perform essential ecological functions - water protection, sanitation, health, recreation, and aesthetics. The research aimed to substantiate the ecological and economic importance of forest resources in the Kyiv region and analyse their rational use and protection. The article shows that the Kyiv region belongs to the regions with an average level of forest cover – 592.8 thousand hectares or 22.2%. The level of forest cover is uneven in the area of the Kyiv Forest zone. It is 44%, and in the area of the Forest-Steppe, it is much lower and decreases from north to south. The use of forest resources in the Kyiv region in 2019 amounted to harvesting liquid wood of 999.5 thousand m2, and deforestation was carried out on 75.5 thousand hectares. The region’s volume of forestry works and services amounted to 8,9 million dollars, and the wood stock makes 90805,9 thousand m2. Emphasis is placed on the importance of protecting the Red Book species of plants and fungi that grow in the forests of the Kyiv region. Examples of harmful economic activity in the areas belonging to the nature reserve fund and large-scale fires in April 2020, which covered more than 3.5 thousand hectares of forests in the region and caused damage to forest fauna and flora. The studied region’s positive environmental and economic factors have been admitted by planting trees on an area of 2151 hectares and sowing seeds of forest species on an area of 67 hectares in 2020.
Źródło:
Journal of Ecological Engineering; 2023, 24, 1; 87--96
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Endophytes – untapped resources and pharmacological prospects against coronaviruses
Autorzy:
Erhirhie, Earnest Oghenesuvwe
Ezeagha, Chigozie Celestina
Okafor, Glory Chiamaka
Ikegbune, Chidozie
Mohammad, Mukim
Powiązania:
https://bibliotekanauki.pl/articles/2211815.pdf
Data publikacji:
2023-03-25
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
coronaviruses
endophytes
endophytic fungi
SARS-CoV
natural products
Opis:
Introduction and aim. Viral infections stand to be among the most devastating diseases globally. Though significant efforts have been made in research and drug development against viral infections, the search for safe, affordable and effective vaccines against the current ravaging severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is still on. This is because already approved vaccines still need improvement. This review draws the attention of researchers on the potentials of bioactive substances from endophytes against the novel coronaviruses. Material and methods. This assessment was made using references of articles published in English peer reviewed journals indexed in PubMed and Google Scholars databases up to June, 2022. The following key words were used; ‘coronaviruses’, ‘Endophytes’, ‘Endophytes and viral infections, ‘Endophytes and COVID-19, ‘SARS-CoV’. Analysis of the literature. In-silico, in-vitro and in-vivo studies revealed that natural compounds from endophytes showed antiviral activities against various human coronavirus, including HCoV 229E and a norovirus surrogate, the feline coronavirus FCV F9, COVID-19, Coronavirus 2 (SARS-CoV-2), SARSCoV-2 Mpro, among others. Conclusion. This finding calls for researchers to also focus on endophytes, as part of drugs development in the bid to finding possible solution in combating the devastating COVID-19, an emerging situation.
Źródło:
European Journal of Clinical and Experimental Medicine; 2023, 1; 145-151
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental Observations and Assessment of Landfill Leachate Bioremediation by Autochthonous Fungi Species and their Effective Geoactivities
Autorzy:
Muksy, Renjbar
Kolo, Kamal
Powiązania:
https://bibliotekanauki.pl/articles/2202342.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
autochthonous fungi
pathogenic fungi
biosorption
biomineralization
decolorization
Opis:
Autochthonous fungi are potential successful agents in the process of bioremediation through their efficient adaptation to pollutant toxicity and competition with other microorganisms that are present in the leachate treatment plant. The leachate from municipal waste landfills was an important source of fungi. Even though some of these fungi have the potential to be human pathogens, such strains wh en used in biolo gical treatment approaches may serve as a possible tool for integrating the leachate bioremediation process because of the extracellular enzymes produced by fungal strains. In this study, the leachate sample was tested with regard to four parameters, including total dissolved solids (TDS), electrical conductivity (EC), pH, and the decolorization of the leachate sample by a number of indigenous species of fungi, which were observed by use of the culture techniques. The scanning electron microscope coupled with energy dispersive x-ray analysis, UV-spectrum, and reflected and transmitted polarizing light microscope were used in the research project to o bserve and assess the obtained data from the experimental work. The results indicated the various levels of efficiency of the isolated fungal strains in eliminating color, lowering TDS, EC, and pH through their geoactivities potential in metal biosorption and immobilization by biomineralization of new minerals in the growth environment and eventually reducing the metal bioavailability and toxicity.
Źródło:
Journal of Ecological Engineering; 2023, 24, 1; 312--327
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fungal community change in selected fluvisols under simulated flooding condition
Autorzy:
Furtak, Karolina
Grządziel, Jarosław
Powiązania:
https://bibliotekanauki.pl/articles/26917709.pdf
Data publikacji:
2023
Wydawca:
Instytut Uprawy Nawożenia i Gleboznawstwa – Państwowy Instytut Badawczy
Tematy:
flood
fluvisols
fungi
microcosm experiment
mycobiome
soil moisture
Opis:
The soil mycobiome is an important part of the numerous biogeochemical processes taking place in the soil. Its activity and diversity are influenced by many factors, including soil moisture. In this study, the effect of a 14-day simulated flood on the mycobiome of three different Fluvisols in microcosm experiment was assessed using next-generation sequencing. The results obtained showed that excessive moisture alters the structure of the mycobiome and the amounts of pathogenic, parasitic, and endophytic fungi. Among others, an increase in the occurrence of saprotrophic fungi of the genera Trichoderma, Talaromyces, and Schizothecium was noted. At the same time, the study showeda decrease in the abundance of arbuscular mycorrhizal fungi from the phylum Glomeromycota and Mucoromycota as a result of flooding. In addition, the structure of the soil mycobiome has been shown to be closely related to soil type – statistically significant correlations of individual fungal genera with the clay and silt or sand content of the soil were obtained. Future research on the soil mycobiome under flooding conditions may help to understand changes in soil biogeochemical processes following flooding, the occurrence of which is increasing with climate change.
Źródło:
Polish Journal of Agronomy; 2023, 52; 31-43
2081-2787
Pojawia się w:
Polish Journal of Agronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Grzyby białej zgnilizny w rozkładzie wybranych wyłaniających się zanieczyszczeń w ściekach
White rot fungi in the decomposition of selected emerging pollutants in wastewater
Autorzy:
Fijałkowski, Krzysztof
Litkowicz, Natalia
Piekutin, Janina
Powiązania:
https://bibliotekanauki.pl/chapters/27320987.pdf
Data publikacji:
2023-07-19
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
związki aktywne farmaceutycznie
grzyby białej zgnilizny
ścieki
pharmaceutically active compounds
white rot fungi
wastewater
decomposition
Opis:
Związki aktywne farmaceutycznie zawarte w ściekach są trudno usuwalne i wysoce toksyczne dla organizmów żywych. Konwencjonalne metody oczyszczania, oparte na technologii osadu czynnego, nie są wystarczająco skuteczne. Opracowano szereg innowacyjnych technologii oczyszczania ścieków w celu osiągnięcia wyższej skuteczności usuwania tego typu zanieczyszczeń. Jedną z takich metod jest stosowanie grzybów białej zgnilizny (ang. white rot fungi – WRF). Posiadają one zdolność do rozkładu zarówno ligniny, jak i biopolimerów celulozy dzięki enzymom, takim jak peroksydaza ligninowa, peroksydaza manganowa, uniwersalna peroksydaza i lakkaza. Zdolność WRF można wykorzystać do rozkładu zanieczyszczeń w ściekach na dwa sposoby: poprzez zastosowanie izolatów samych enzymów lub aktywnej biomasy całego grzyba. Badacze stosują technologie, takie jak bioreaktory okresowe ze złożem fluidalnym, bioreaktory ze złożem stałym, procesy hybrydowe, bioreaktory płytowe, reaktory przepływowe, bioreaktory membranowe oraz hodowle w pożywce płynnej. Badacze otrzymywali wyniki nawet do 100% degradacji, a także zmniejszenie toksyczności. Konieczne są dalsze badania w celu oceny technicznych, ekonomicznych i środowiskowych aspektów oczyszczania z wykorzystaniem grzybów białej zgnilizny.
Pharmaceutically active compounds (PhAC) contained in wastewater are difficult to remove and highly toxic to living organisms. Conventional treatment methods based on activated sludge technology are not effective enough. A number of innovative wastewater treatment technologies have been developed to achieve higher efficiency in removing this type of pollutant. One such method is the use of White Rot Fungi. WRF have the ability to break down both lignin and cellulose biopolymers thanks to enzymes such as lignin peroxidase, manganese peroxidase, universal peroxidase and laccase, as well as unique oxidative and extracellular lignolytic systems. The ability of WRF can be used to decompose pollutants in wastewater in two ways: by the use of isolates of the enzymes themselves or the active biomass of the whole fungus. Researchers are using technologies such as fluidized bed batch bioreactors, fixed bed bioreactors, hybrid processes, plate bioreactors, flow-through reactors, membrane bioreactors, and liquid culture cultures. The researchers obtained results of up to 100% degradation as well as a reduction in toxicity. More research is needed to assess the technical, economic and environmental aspects of treatment with white rot fungi.
Źródło:
Inżynieria środowiska i biotechnologia. Wyzwania i nowe technologie; 46-58
9788371939013
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigating the anti-cancer properties of Trametes gibbosa extract on human colon cancer cells
Badanie antykancerogennych właściwości ekstraktu z wrośniaka garbatego (Trametes gibbosa)
Autorzy:
Siewert, Barbara
Powiązania:
https://bibliotekanauki.pl/articles/32388082.pdf
Data publikacji:
2023
Wydawca:
Fundacja PSC
Tematy:
Trametes gibbosa
colon cancer
cancer treatment
fungi
Opis:
Trametes gibbosa, also referred to as lumpy bracket, is a fungus belonging to the Polyporaceae with natural bioactive compounds that have aroused great interest for their potential benefits in human health. This pilot study aimed to investigate the anti-cancer effect of Trametes gibbosa extract against the HCT-116 cell line (human colorectal cancer cells). The extract was obtained by macerating dry biomass with 3 solvents: acetone, isopropyl alcohol and DCM, isolating established anticancer agents –polysaccharide complexes (PSK and PSP) from the extract, and then being dissolved. Cellular toxicity was assessed by trypan blue staining, determining the effect of 1- and 24-hour continuous exposure to the extract of varying concentrations: 100 µl/mL, 200 µl/mL, 500 µl/mL, 1000 µl/ mL. Results have demonstrated a cytotoxic effect in time- and dose-dependent manners. The proposed cellular mechanisms behind the results are most likely apoptosis followed by secondary necrotic cell death, as the literature suggests, although that remains unclear and requires further experiments. Within the course of consecutive studies, it can be established whether the extract or the compounds contained may hold promise for clinical use, e.g., for adjuvant therapy.
Źródło:
Alcumena. Pismo Interdyscyplinarne; 2023, 2(14); 101-112
2719-9851
Pojawia się w:
Alcumena. Pismo Interdyscyplinarne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metabolity wtórne – znaczenie w środowisku przyrodniczym i gospodarce człowieka
Secondary metabolites – importance in the natural environment and human economy
Autorzy:
Nowak, Dorota
Piekutin, Janina
Powiązania:
https://bibliotekanauki.pl/chapters/27317147.pdf
Data publikacji:
2023-07-19
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
metabolity wtórne
rośliny
grzyby
flawonoidy
alkaloidy
terpeny
mykotoksyny
biocydy
Trichoderma
secondary metabolites
plants
fungi
flavonoids
alkaloids
terpenes
mycotoxins
biocides
Opis:
Metabolity wtórne to bardzo różnorodna grupa związków chemicznych naturalnie produkowanych przez organizmy. Spełniają one funkcje sygnałów biochemicznych, które umożliwiają komunikację między organizmami. Te niskocząsteczkowe związki organiczne działają jako chemomediatory ekologiczne, pełniąc funkcje obronne, przywabiające, ułatwiające rozmnażania, a także regulacyjne. Metabolity wtórne produkowane są przez bakterie właściwe, promieniowce, grzyby, glony, a także zwierzęta. Poznanie budowy oraz właściwości biologicznych umożliwiło zastosowanie metabolitów wtórnych w produkcji ważnych leków, takich jak: antybiotyki, leki przeciwnowotworowe, przeciwbólowe, immunosupresyjne, obniżające poziom cholesterolu lub regulujące poziom cukru we krwi. Metabolity wtórne mogą być zastosowane także jako naturalne i mniej szkodliwe środki ochrony roślin zwalczające fitopatogeny. Wśród metabolitów wtórnych są również silnie działające związki toksyczne, jak np. mykotoksyny produkowane przez grzyby. W rozdziale dokonano przeglądu literatury na temat budowy, funkcji ekologicznych oraz znaczenia wybranych metabolitów wtórnych roślin oraz grzybów.
Secondary metabolites are a very diverse group of chemical compounds naturally produced by organisms. They perform functions of biochemical signals and enable communication between organisms. They are low-molecular organic compounds and act as ecological chemomediators. They perform defensive, attracting, facilitating reproduction, and regulatory functions. Secondary metabolites are produced by bacteria, actinomycetes, fungi, algae, as well as animals. Knowledge of the structure and biological properties has made it possible to use secondary metabolites in the production of important drugs such as antibiotics, anticancer drugs, painkillers, immunosuppressants, cholesterol-lowering or blood sugar-regulating drugs. Secondary metabolites can also be used as natural and less harmful plant protection products to combat phytopathogens. Among secondary metabolites are also potent toxic compounds such as: mycotoxins produced by fungi. This chapter reviews the literature on the structure, ecological functions and importance of selected secondary metabolites of plants and fungi.
Źródło:
Inżynieria środowiska i biotechnologia. Wyzwania i nowe technologie; 201-214
9788371939013
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New record and new species of lichenized fungal genus Candelariella Müll. Arg. in Antarctica
Autorzy:
Halici, Mehmet Gökhan
Kahraman Yiğit, Merve
Bölükbaşı, Ekrem
Güllü, Mithat
Powiązania:
https://bibliotekanauki.pl/articles/16648064.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
Antarctic
Antarctic Peninsula
biodiversity
lichenized fungi
Candelariales
mtSSU
nrITS
RPB1
Opis:
Previously, only three Candelariella species were known from Antarctica: C. aurella, C. flava and C. vitellina. After morphologically and phylogenetically examining our collections on soil from James Ross Island, located in the north-east Antarctic Peninsula region, and Horseshoe Island, a small rocky island in Bourgeois Fjord, Marguerite Bay in the south-west Antarctic Peninsula, we describe the lichen species Candelariella ruzgarii as new to science. Sequences of the nrITS, mtSSU and RPB1 gene regions of the new species were amplified and revealed that the phylogenetic position of the new species is in the C. aurella group, which is characterised by 8-spored asci and ± granular thalli. Candelariella ruzgarii is phylogenetically most closely related to C. aurella s. lat. but differs mainly in ecology as the new species grows on soil or on terricolous lichens, whereas the latter species grows on calcareous rocks, rarely on wood. Morphologically, C. ruzgarii is very similar to C. aggregata, a Northern Hemisphere species that grows on mosses and plant debris. Apart from the different phylogenetical position, C. ruzgarii has a thicker and sometimes slightly crenulated thalline margin and somewhat shorter ascospores than C. aggregata. We also report C. plumbea for the first time from Antarctica, a species with a thick and grey thallus that was previously known from Europe and Asia.
Źródło:
Polish Polar Research; 2023, 44, 1; 69-83
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Trophic Abilities of Trametes Gibbosa (Polyporales, Basidiomycota) With Respect to The Wood of Fagus Sylvatica
Autorzy:
Piętka, Jacek
Szczepkowski, Andrzej
Ronikier, Michał
Saługa, Marta
Powiązania:
https://bibliotekanauki.pl/articles/27323534.pdf
Data publikacji:
2023
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Drewna
Tematy:
wood decay fungi
white rot
fungal inoculation
molecular identification
Opis:
Trametes gibbosa is a widespread polypore fungus occurring throughout Europe and Asia. It is considered a saprotroph occasionally exhibiting parasitic activity. The aims of the present experimental work were to: (1) determine the ability of T. gibbosa pure culture to decompose beech wood under laboratory conditions, (2) test the trophic abilities of T. gibbosa by comparative analysis of the development of its mycelium inoculated into the stems of living beech trees and into beech rollers (stem segments – dead substrate). The laboratory wood decay experiment revealed considerable weight loss of the beech wood samples exposed to T. gibbosa (32.7% after 120 days). Identification of the mycelium used for inoculation in natural forest conditions was done by morphological analysis of the cultures and molecular barcoding. Attempts to recover T. gibbosa mycelium were made after two and eight years for the living trees, and after two years for the rollers. While T. gibbosa could not be reisolated from the inoculated beech trees, basidiomata were observed on the beech rollers, and genetically verified T. gibbosa mycelium was extracted from them. We conclude that T. gibbosa exhibits strong saprotrophic inclinations.
Źródło:
Drewno. Prace Naukowe. Doniesienia. Komunikaty; 2023, 66, 211; Art. no. 1644-3985.413.08
1644-3985
Pojawia się w:
Drewno. Prace Naukowe. Doniesienia. Komunikaty
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A revised catalog of lichens of Georgia (South Caucasus)
Autorzy:
Inashvili, Tsimi
Kupradze, Inga
Batsatsashvili, Ketevan
Powiązania:
https://bibliotekanauki.pl/articles/11543478.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
lichenized fungi
fungi
Ascomycota
biodiversity
the Caucasus
Opis:
A revised lichen catalog for Georgia, the South Caucasus, the second after 1986, is presented here. It is based on a literature survey and recent study of herbarium material. The list includes 713 species of lichens and nine species of nonlichenized fungi traditionally treated by lichenologists. As a basis for the present catalog, 106 literature sources reporting the first findings of the listed taxa in floristic regions of Georgia were used. The accepted taxa in bold are followed by references from the literature, if applicable, as well as references from herbarium specimens seen by us at local and several foreign herbaria. Specimens of the 547 of the 722 reported species are stored in the local herbaria: 542 at the National Herbarium of Georgia, the Institute of Botany, Ilia State University, Tbilisi (TBI), and 94 in the Herbarium of the State Museum of Georgia, Tbilisi (TGM). In each literature citation and herbarium code, the occurrence of respective species in Georgia's floristic regions is given. In addition, a short historical background and comprehensive bibliography are provided.
Źródło:
Acta Mycologica; 2022, 57; 571
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biodegradation of Turquoise Blue Textile Dye by Wood Degrading Local Fungi Isolated from a Plantation Area
Autorzy:
Sudiana, I Ketut
Citrawathi, Desak Made
Sastrawidana, I Dewa Ketut
Maryam, Siti
Sukarta, I Nyoman
Wirawan, Gede Agus Hendra
Powiązania:
https://bibliotekanauki.pl/articles/2173257.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
ligninolityc enzyme
removal efficiency
turquoise blue dye
wood degrading fungi
Opis:
This research aimed to investigate the potential screening of wood degrading fungi to degrade the textile dye. Nine fungi were selected based on their ability to remove the turquoise blue textile dye on liquid potatoes dextrose médium. The fungi which have a high color removal efficiency were identified and analyzed qualitatively in terms of the manganese peroxidase and lignin peroxidase enzymes and their enzyme activity was determined. The selected fungi were investigated for their ability to degrade turquoise blue under variations in pH, dye concentration, and contact time. The results showed that three of the nine strains of wood-degrading local fungi, identified as Trametes hirsuta, Microporus xanthopus, and Ganoderma applanatum, were able to degrade textile dye. The color removal efficiency of dye treatment was monitored under the initial pH, dye concentration, and contact time variation. The study analyzed that the optimal color removal efficiency of the turquoise blue textile dye with a concentration of 30 mg/L in an aqueous solution was achieved at 78.50 and 85.84% at pH 6 for Microporus xanthopus and Ganoderma applanatum, while the color removal efficiency was 82.17% at pH 5 for Trametes hirsuta with seven days of incubation time.
Źródło:
Journal of Ecological Engineering; 2022, 23, 7; 205--214
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cell response of Antarctic strain Penicillium griseofulvum against low temperature stress
Autorzy:
Krumova, Ekaterina Ts.
Koeva, Ekaterina K.
Stoitsova, Stoyanka R.
Paunova-Krasteva, Tsvetelina S.
Stoyancheva, Galina D.
Angelova, Maria B.
Powiązania:
https://bibliotekanauki.pl/articles/16538465.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
Antarctic
filamentous fungi
oxidative stress
biomarkers
antioxidant enzymes
Opis:
During the evolution organisms are subjected to the continuous impact of environmental factors. In recent years an increasing number of studies have focused on the physicochemical limits of life on Earth such as temperature, pressure, drought, salt content, pH, heavy metals, etc. Extreme environmental conditions disrupt the most important interactions that support the function and structure of biomolecules. For this reason, organisms inhabiting extreme habitats have recently become of particularly great interest. Although filamentous fungi are an important part of the polar ecosystem, information about their distribution and diversity, as well as their adaptation mechanisms, is insufficient. In the present study, the fungal strain Penicillium griseofulvum isolated from an Antarctic soil sample was used as a study model. The fungal cellular response against short term exposure to low temperature was observed. Our results clearly showed that short-term low temperature exposure caused oxidative stress in fungal cells and resulted in enhanced level of oxidative damaged proteins, accumulation of reserve carbohydrates and increased activity of the antioxidant enzyme defence. Ultrastructural changes in cell morphology were analysed. Different pattern of cell pathology provoked by the application of two stress temperatures was detected. Overall, this study aimed to observe the survival strategy of filamentous fungi in extremely cold habitats, and to acquire new knowledge about the relationship between low temperature and oxidative stress.
Źródło:
Polish Polar Research; 2022, 43, 2; 125-143
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hygrophilous old-growth forest lichens are highly capable of instantaneous photosynthesis activation after short-term desiccation stress
Autorzy:
Osyczka, P.
Powiązania:
https://bibliotekanauki.pl/articles/2142054.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
bioindicators
chlorophyll fluorescence
lichen ecophysiology
lichenized fungi
old-growth forest lichens
photosynthesis activation rate
lichen photobiont properties
Opis:
The vitality of lichens and their growth depend on the physiological status of both the fungal and algal partner. Many epiphytic lichens demonstrate high specificity to a habitat type and hygrophilous species are, as a rule, confined to close-to-natural forest complexes. Tolerance to desiccation stress and the rate of photosynthesis activation upon thallus hydration vary between species. Analyzes of chlorophyll fluorescence and photosynthesis efficiency have been widely applied to determine the viability of lichens. The aim of this study was to determine the activation photosynthesis rate upon hydration in epiphytic lichens exposed to short-term desiccation stress and to find potential links between their activation pattern and ecological properties. The results proved that even highly sensitive hygrophilous lichens, i.e., Cetrelia cetrarioides, Lobaria pulmonaria, Menegazzia terebrata, do not exhibit any delay in the restart of the photosynthesis process, compared to mesophytic or xerophytic ones. All examined lichens achieved nearly 100% of their maximum photosynthetic efficiency just one hour after they had been supplied with a relatively small quantity of water. Moreover, the increase in photosynthesis efficiency, measured at 20-minute intervals upon hydration, started from a relatively high level. In addition, the differences in the content of photosynthetic pigments and water holding capacity between species did not affect the general pattern of activation, which is comparable across various lichens. It can be concluded that healthy hygrophilous lichens do not require long hydration time to regain a high level of photosynthesis efficiency after a short rainless period. This fact supports the idea of applying chlorophyll fluorescence analysis in the field to assess vitality of lichens and the condition of their natural habitat.
Źródło:
Acta Biologica Cracoviensia. Series Botanica; 2022, 64, 1; 15-25
0001-5296
Pojawia się w:
Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Indoor Air Quality in Offices and Classrooms in Public Utility Building - a Case Study
Autorzy:
Łuszczyńska, Katarzyna
Powiązania:
https://bibliotekanauki.pl/articles/27314787.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
indoor air quality
bioaerosol
microorganisms
fungi
jakość powietrza w pomieszczeniach
bioaerozol
mikroorganizmy
grzyby
Opis:
A microbiological analysis of indoor air quality in offices, lecture rooms, and hallways in a public utility building has been carried out in the Lubuskie Voivodship (Poland). In one of the storage rooms, the presence of fungi on the building partition was found in the place of water infiltration as a result of a technological failure in the building. A total of 17 nonresidential interiors were examined. The total number of psychrophilic and mesophilic bacteria and the total number of fungi were sampled by the collision method with the air sampler. A qualitative analysis has been performed of fungi present in the indoor air and from building partition of the studied interiors. A total of 11 species of fungi have been specified. Relative humidity and air temperature were measured with a hygrometer. The studies showed that the number of psychrophilic bacteria in indoor air was in the range 0-730 CFU/m3 , while the number of mesophilic bacteria was slightly higher (0-896 CFU/m3 ). A high level of contamination and a large number of fungi (734 CFU/m3 ) were found in the indoor air of storage room, where the problem of biodeterioration of building partitions occurred. In the remaining rooms, the level of microorganisms was low or moderate. Microbiological tests of the outdoor air (background) did not reveal an excessive number of microorganisms in the air.
Źródło:
Civil and Environmental Engineering Reports; 2022, 32, 3; 228--239
2080-5187
2450-8594
Pojawia się w:
Civil and Environmental Engineering Reports
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 837

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