Thematische Bibliographien / Fungal material

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Auswahl der wissenschaftlichen Literatur zum Thema „Fungal material“

Autor: Grafiati

Veröffentlicht am 24. Juni 2021

Zuletzt aktualisiert am 7. Februar 2022

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Zeitschriftenartikel zum Thema "Fungal material"

Chard, Jane M., Jane W. Walker, Andrew F. D. Kennedy und I. W. Sutherland. „Unusual bacteria from fungal material“. FEMS Microbiology Letters 40, Nr. 2-3 (Februar 1987): 345–48. http://dx.doi.org/10.1111/j.1574-6968.1987.tb02051.x.

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Kositchaiyong, Apisit, und Narongrit Sombatsompop. „Inhibition of Fungal Growth and Material Characteristics of PVC and Wood/PVC Composites Doped with Fungicides“. Advanced Materials Research 747 (August 2013): 343–46. http://dx.doi.org/10.4028/www.scientific.net/amr.747.343.

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Two commercial fungicides, namely, 3-Iodopropinyl-N-butylcarbamate (IPBC) and Methylbenzimidazole-2-ylcarbamate (Carbendazim) were used to improve anti-fungal properties of poly (vinyl chloride) (PVC) and wood/PVC composite (WPVC) materials. Disk diffusion test and dry weight technique, using Aspergillus niger as a testing fungi, were employed for the anti-fungal assessments. The effects of type and content of fungicides on anti-fungal performances were discussed in association with material properties. For material property characterizations, flexural properties, surface contact angle and surface color changes were observed. The results from anti-fungal test by disk diffusion test revealed that addition of IPBC in PVC or WPVC showed much greater anti-fungal performance than that of Carbendazim in PVC or WPVC. The WPVC samples exhibited better anti-fungal performances than the PVC samples. It can be concluded that wood particles could promote the fungicidal effect of the WPVC composites. It was found that type and content of fungicides used did not significantly alter the flexural properties of the materials whereas the presence of wood resulted in an increase of flexural modulus with a decrease in flexural strength. The surface contact and color changes of PVC and WPVC were observed with addition of IPBC, but not found with Carbendazim.

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Shkorbotun, Yaroslav V., und Mykola A. Skoryk. „Features of diagnostics of fungal ball of paranasal sinuses of iatrogenic genesis“. OTORHINOLARYNGOLOGY №5-6(3) 2020, Nr. 5-6(3) 2020 (04.11.2020): 4–11. http://dx.doi.org/10.37219/2528-8253-2020-6-04.

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Introduction: There are various theories of the origin of areas with high radiation density in the fungal ball of the paranasal sinuses: X-ray contrast dentist filling material; accumulation of zinc due to enzymes of the metalloproteinase group; formation of osteophytes, etc. The purpose of the study: to study the chemical composition of areas of fungal balls that have high radiological density. Methods and materials: The results of research of 26 samples of fungal bodies by scanning electron microscopy and spectrometry removed from maxillary sinuses in patients with fungal sinusitis (4 – nonodontogenic, 22 – odontogenic origin) are presented. In addition, 5 types of material most commonly used for endodontic treatment were studied. The results: It was found that fungal bodies of odontogenic origin have a heterogeneous structure with the presence of crystalline inclusions, the elemental composition of which has the characteristics of materials for endodontic treatment (Ba, Zr, W, Co), or increased content in the fungal ball of trace elements (Ti, Al and Zn), in quantities that are not characteristic of organic compounds. Conclusions: Scanning electron microscopy in combination with spectrometry can be used to identify foreign bodies of the maxillary sinus of exogenous (iatrogenic) origin and determine their role in the development of the fungal ball.

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Pasanen, Anna-Liisa, Kati Yli-Pietilä, Pertti Pasanen, Pentti Kalliokoski und Juhani Tarhanen. „Ergosterol Content in Various Fungal Species and Biocontaminated Building Materials“. Applied and Environmental Microbiology 65, Nr. 1 (01.01.1999): 138–42. http://dx.doi.org/10.1128/aem.65.1.138-142.1999.

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ABSTRACT This paper reports the ergosterol content for microbial cultures of six filamentous fungi, three yeast species, and one actinomycete and the ergosterol levels in 40 samples of building materials (wood chip, gypsum board, and glass wool) contaminated by microorganisms. The samples were hydrolyzed in alkaline methanol, and sterols were silylated and analyzed by gas chromatography-mass spectrometry. The average ergosterol content varied widely among the fungal species over the range of 2.6 to 42 μg/ml of dry mass or 0.00011 to 17 pg/spore or cell. Ergosterol could not be detected in the actinomycete culture. The results for both the fungal cultures and building material samples supported the idea that the ergosterol content reflects the concentration of filamentous fungi but it underestimates the occurrence of yeast cells. The ergosterol content in building material samples ranged from 0.017 to 68 μg/g of dry mass of material. A good agreement between the ergosterol concentration and viable fungal concentrations was detected in the wood chip (r > 0.66, P ≤ 0.009) and gypsum board samples (r > 0.48, P ≤ 0.059), whereas no relationship between these factors was observed in the glass wool samples. For the pooled data of the building materials, the ergosterol content correlated significantly with the viable fungal levels (r > 0.63, P < 0.0001). In conclusion, the ergosterol concentration could be a suitable marker for estimation of fungal concentrations in contaminated building materials with certain reservations, including the underestimation of yeast concentrations.

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Tayyab, Muhammad, Waqar Islam, Chol Gyu Lee, Ziqin Pang, Farghama Khalil, Sheng Lin, Wenxiong Lin und Hua Zhang. „Short-Term Effects of Different Organic Amendments on Soil Fungal Composition“. Sustainability 11, Nr. 1 (03.01.2019): 198. http://dx.doi.org/10.3390/su11010198.

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Fungi play an essential role in recovering the quality and fertility of soil. There is a limited understating of the complex response of fungal diversity to different organic materials in clay loam soil. Here, we report the response of soil fungi toward the short-term application of manure (M), sugarcane straw (S), and sugarcane straw plus manure (MS), including no organic material control (CK) at two different time points (50 and 100 days after application). Illumina sequencing was used to examine the fungal communities. Our results reveal a significant shift among the soil fungal community structure associated with each organic material application. After both time points, amendments—especially M and MS—decreased the fungal richness and stimulated the copiotrophic fungal group (Ascomycota) compared to the control soil (CK) and S-amended soil. On the contrary, as compared to the M and MS-amended soils, the CK and S-amended soils at both time points increased the fungal richness and stimulated the oligotrophic fungal groups. Organic material use, especially M and MS, showed variable results regarding pathogenic fungi enhancing the abundance of Lophodermium and Cercophora and decreasing Fusarium. Concerning the abundance of plant-beneficial fungi, Mortierella was reduced, and Podospora was increased by M and MS input. FUNGuild showed that the amendment of organic materials efficiently declined the abundance of endophytes and plant pathogens, but also enhanced the animal pathogens in terms of abundance with respect to CK at two time points. This study could be useful to provide a novel understanding of the management of soil-borne pathogens by organic amendments for the sustainable production of short-term crops.

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Wicks, Russell, Jegdish Babu, Franklin Garcia-Godoy und Vinay Jain. „Comparison of Fungal Biofilm Formation on Three Contemporary Denture Base Materials“. International Journal of Experimental Dental Science 4, Nr. 2 (2015): 104–8. http://dx.doi.org/10.5005/jp-journals-10029-1106.

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ABSTRACT Statement of problem: Modern polyamide ‘flexible’ denture base materials have increased in popularity for use in removable partial dentures in the last several years. The introduction of these newer products warrants investigation of their relative potential to develop fungal biofilms. Purpose The purpose of this study was to investigate the potential of three denture base materials to support fungal biofilm formation. Materials and methods Specimens of two ‘flexible’ nylon type materials and one traditional heat processed, methyl methacrylate resin material were studied (both polished and unpolished surfaces). The specimens were coated with saliva and evaluated for fungal (Candida albicans) biofilm formation. The fungal biofilm mass formed on denture substrates were evaluated by dry weight analysis and by determining the number of viable fungal cells in the biofilm by MTT viability assay. Alteration in fungal metabolic function following the treatment of the biofilm C. albicans with nystatin and fluconazole was determined by XTT assay. Results In general, the unpolished surfaces of the denture disks favored the fungal biofilm, the most being on polyamide specimen, Valplast. Significantly, less biofilm was formed on Duraflex and Lucitone surfaces. Biofim on C. albicans was also found to be resistant to antifungal agents. As compared to freshly incubated (grown) planktonic cells, biofilm fungal cells required significantly higher concentrations of nystatin and fluconazole in order to obtain 50% reduction in metabolic activity. Conclusion This study demonstrated the differences in denture materials to support fungal biofilm formation, and also difference between polished and unpolished denture material surfaces. The results demonstrated that one of the polyamide materials (duraflex) had lesser potential to biofilm formation than the others. Clinical significance Unfavorable tissue responses can ensue from the presence of fungal biofilms on dental prosthetics. Resistance to biofilm formation is a factor for dental materials in their selection and usage. This study helps to quantify, evaluate and compare biofilm formation on polished and unpolished surfaces of three commonly used denture base materials. The results of this study helped to identify materials, which may, therefore, be better indicated in clinical applications. Evaluations for the newer denture base materials, specific to these testing methods, appear to be novel in the scientific literature. How to cite this article Jain V, Babu J, Ahuja S, Wicks R, Garcia-Godoy F. Comparison of Fungal Biofilm Formation on Three Contemporary Denture Base Materials. Int J Experiment Dent Sci 2015;4(2):104-108.

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Bengtsson, M., S. Wallström, M. Sjöholm, R. Grönlund, B. Anderson, A. Larsson, S. Karlsson, S. Kröll und S. Svanberg. „Fungus Covered Insulator Materials Studied with Laser-Induced Fluorescence and Principal Component Analysis“. Applied Spectroscopy 59, Nr. 8 (August 2005): 1037–41. http://dx.doi.org/10.1366/0003702054615214.

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A method combining laser-induced fluorescence and principal component analysis to detect and discriminate between algal and fungal growth on insulator materials has been studied. Eight fungal cultures and four insulator materials have been analyzed. Multivariate classifications were utilized to characterize the insulator material, and fungal growth could readily be distinguished from a clean surface. The results of the principal component analyses make it possible to distinguish between algae infected, fungi infected, and clean silicone rubber materials. The experiments were performed in the laboratory using a fiber-optic fluorosensor that consisted of a nitrogen laser and an optical multi-channel analyzer system.

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Paiva, Weslley de Souza, Francisco Ernesto de Souza Neto, Erika de Souza Paiva und Anabelle Camarotti de Lima Batista. „Fungal chitosan as membranous material modified by atmospheric plasma“. Research, Society and Development 10, Nr. 1 (04.01.2021): e9210111543. http://dx.doi.org/10.33448/rsd-v10i1.11543.

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Objective: This study produced a fungal chitosan membrane extracted from Rhizopus stolonifer, as well as its modification using dielectric barrier discharge plasma (DBD), aiming to improve the physicochemical characteristics of the membrane, optimizing its use in the medical research field. Method: The obtained chitosan was physically and chemically characterized (Molecular Weight, Fourier Transform Infrared, X-ray Diffraction), later were produced fungal chitosan membranes and DBD plasma was applied. The membranes were characterized before and after plasma application using the tests contact angle, swelling and atomic force microscopy (medium roughness) analyzes. Results: A fungal chitosan with a yield of 16.73 mg/g, and an apparent molecular weight of 4 kDa was obtained, being considered of low molecular weight and high degree of deacetylation (84%). It was possible to obtain the membrane and after application of DBD plasma, the contact angle dropped from 77.5° to 30.9°, making it more hydrophilic. Conclusion: Thus, the efficiency of the technique for increasing the hydrophilicity of the fungal chitosan membrane without the additive of chemical reagents during the process was confirmed and the membrane formed is a promising alternative can be used in different ways in the medical area.

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Andersen, Birgitte, Jens C. Frisvad, Ib Søndergaard, Ib S. Rasmussen und Lisbeth S. Larsen. „Associations between Fungal Species and Water-Damaged Building Materials“. Applied and Environmental Microbiology 77, Nr. 12 (29.04.2011): 4180–88. http://dx.doi.org/10.1128/aem.02513-10.

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ABSTRACTFungal growth in damp or water-damaged buildings worldwide is an increasing problem, which has adverse effects on both the occupants and the buildings. Air sampling alone in moldy buildings does not reveal the full diversity of fungal species growing on building materials. One aim of this study was to estimate the qualitative and quantitative diversity of fungi growing on damp or water-damaged building materials. Another was to determine if associations exist between the most commonly found fungal species and different types of materials. More than 5,300 surface samples were taken by means of V8 contact plates from materials with visible fungal growth. Fungal identifications and information on building material components were analyzed using multivariate statistic methods to determine associations between fungi and material components. The results confirmed thatPenicillium chrysogenumandAspergillus versicolorare the most common fungal species in water-damaged buildings. The results also showedChaetomiumspp.,Acremoniumspp., andUlocladiumspp. to be very common on damp building materials. Analyses show that associated mycobiotas exist on different building materials. Associations were found between (i)Acremoniumspp.,Penicillium chrysogenum,Stachybotrysspp.,Ulocladiumspp., and gypsum and wallpaper, (ii)Arthrinium phaeospermum,Aureobasidium pullulans,Cladosporium herbarum,Trichodermaspp., yeasts, and different types of wood and plywood, and (iii)Aspergillus fumigatus,Aspergillus melleus,Aspergillus niger,Aspergillus ochraceus,Chaetomiumspp.,Mucor racemosus,Mucor spinosus, and concrete and other floor-related materials. These results can be used to develop new and resistant building materials and relevant allergen extracts and to help focus research on relevant mycotoxins, microbial volatile organic compounds (MVOCs), and microparticles released into the indoor environment.

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HAQ, ANWAR-UL, ZAFARULLAH QAZI und SAFDAR HASHMI. „FUNGAL KERATITIS“. Professional Medical Journal 13, Nr. 02 (25.06.2006): 253–58. http://dx.doi.org/10.29309/tpmj/2006.13.02.5022.

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Previously no topical antifungal was available and only dermatological preparationlike bifonazole (mycospore) and some systemic antifungal were used for treatment of fungal ulcers. Nowmiconazole is available as topical ophthalmic ointment for the management of fungal ulcer. Objectives: To Studythe efficacy of topical miconazole ophthalmic ointment in the management of fungal keratitis and to know the timeperiod required for complete healing with topical miconazole ophthalmic ointment. Setting: Department ofOphthalmology, Nishtar Hospital, Multan. Duration: One year (from March 2001 to February 2002). Material andmethod: Sample size: 20 patients. Results: According to this study of 20 cases it is apparent that the fungalkeratitis occurred most frequently in patients between 20-70 years of age. It is apparent those males who work atdifferent places are more prone to disease. Out of 20 cases, 10 (50%) were farmers by occupation. Trauma withfingernail in 1(5%) patient, trauma with stone in 2(10%) patients. No specific eye disease was present in 12(60%)cases. Trachoma was present in 4(20%) cases. Blephritis was diagnosed in 2(10%) cases, 2(10%) patients weresuffering from chronic illness like chest infection. Fungal keratitis in 12(60%) was not associated with hypopyon,6(30%) patients were associated with hypopyon and 2(10%) were associated with end-ophthalmitis. The responsewas good in 12(60%) patients and satisfactory in 3(15%). Poor response in 3(15%) and there was no response in2(10%) cases. Conclusion: Miconazole ophthalmic ointment is a good drug for the treatment of fungal keratitis.

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Dissertationen zum Thema "Fungal material"

Wijayarathna, Egodagedara Ralalage Kanishka Bandara. „Development of Fungal Leather-like Material from Bread Waste“. Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-25522.

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Food waste and fashion pollution are two of the significant global environmental issues throughout the recent past. In this research, it was investigated the feasibility of making a leather-like material from bread waste using biotechnology as the bridging mechanism. The waste bread collected from the supermarkets were used as the substrate to grow filamentous fungi species Rhizopus Delemar and Fusarium Venenatum. Tanning of fungal protein fibres was successfully performed using vegetable tanning, confirmed using FTIR and SEM images. Furthermore, glycerol and a biobased binder treatment was performed for the wet-laid fungal microfibre sheets produced. Overall, three potential materials were able to produce with tensile strengths ranging from 7.74 ± 0.55 MPa to 6.92 ± 0.51 MPa and the elongation% from 16.81 ± 1.61 to 4.82 ± 0.36. The binder treatment enhanced the hydrophobicity even after the glycerol treatment, an added functional advantage for retaining flexibility even after contact with moisture. The fungal functional material produced with bread waste can be tailored successfully into leather substitutes using an environmentally benign procedure.

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Cardias, Maria de Fatima Castro. „The protection of wood against fungal decay by isocyanate chemical modification“. Thesis, Bangor University, 1992. https://research.bangor.ac.uk/portal/en/theses/the-protection-of-wood-against-fungal-decay-by-isocyanate-chemical-modification(0e432d60-3e1c-4a5d-977f-09a7330f378c).html.

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The purpose of this study was to assess the bioprotectant performance of chemical modification wi th three different isocyanates (n-butyl, hexyl and l,6-diisocyanatohexane, BuNCO, HeNCO and HOI respectively) in Corsican pine (Pinus nigra Schneid) sapwood. Wood-isocyanate bond formation was verified by the increase in sample weight, volume and by infrared spectroscopy. Basidiomycete (Coniophora puteana, Gloeophyllum trabeum, Coriolus versicolor, Pycnoporus sanguineus) decay tests demonstrated protection by chemical modification. The relationships of fungal species, weight percent gain (WPG), decay induced weight loss and moisture content were examined. One of the brown rot fungi, ~. puteana, showed higher threshold protection values than the other fungi tested and the di isocyanate showed better perf ormance. Scanning Electron Microscopy and enzyme detection tests (cellulase and phenol oxidases) have been carried out in an attempt to gain a better understanding of the treatment performance. Chemical characteristics of the sound and brown rotted wood (~. puteana) have been examined using sulphuric acid, sodium chlori te and high performance liquid chromatography-HPLC (gel permeation chromatography-GPC) procedures to clarify the principles which govern isocyanate modifications and restrict fungal decay. A number of parameters were examined including lignin and holocellulose contents, holocellulose molecular weight and degree of polymerisation (OP and dispersity). These demonstrated that chemical modification changed the configuration of the original wood polymers. Al though preferential modification occurred at lower weight percent gains in the lignin fraction appreciable wood protection against C. puteana only occurred when the holocellulose fraction showed substantial changes due to chemical modification. To examine further the effect of moisture and loading of substituent groups within the outer layers of wood after chemical modification (BuNCO & HOI), tensile strength resistance to surface colonisation by soft rot fungi was undertaken utilizing thin wood strips after unsterile soil tests. Less modification was necessary to achieve protection against soft rot in this test.

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Dupin, Isabelle Valérie Simone. „Production and localisation of haze protective material from Saccharomyces cerevisiae /“. Title page, table of contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phd934.pdf.

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Peterson, Robert. „Interaction Effect of Filler Material on Fungal Biomass Activity for Heavy Metal Biosorption in Stormwater“. Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-14984.

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In the wake of ever more occurring and evident consequences brought by climate change such as droughts and an increasing world population, a responsible use and handling of freshwater has never been as important as before. Stormwater is more than often not treated and simply released back in nature with any kind of pollution it has collected on its way, one of which being heavy metals. By treating stormwater not only would this underutilised resource be made use of, creating a new source of freshwater, but environmental pollution caused by untreated stormwater could be potentially decreased, as it can be converted into a potential resource rather than a waste caused by nature. There are a number of already established methods to lower the concentration of heavy metals in water, however there are inherent economical and practical disadvantages with each of them. A method that has shown promising results with potential to challenge these contemporary solutions is biosorption. This study has explored the use of fungal biomass of Rhizopus oryzae for heavy metal biosorption in conjuncture with an organic filler material. The metals investigated were Zn, Cu and Fe. Moreover, the effects of pre-treating the fungal biomass with primarily NaOH were also investigated together with the optimal ratio between biomass and filler material and retention time, in order to maximise biosorption.Pre-treating the fungal biomass with NaOH resulted in a considerable increase in biosorption. Moreover, the presence of the filler material had a positive impact on biosorption by further enhancing it. The best effect was obtained at a 4:1 ratio between biomass and filler material. Finally, the best retention time was determined to be around 2 hours, slowly levelling off at higher retention times. However, the use of pre-treated R. oryzae with filler material did not prove to be efficient regarding the removal of heavy metal ions in stormwater at very low concentration of metals, between approximately 4 to 10 ppb. In the future, it would be worthwhile to investigate the viability of this method on stormwater with higher metal concentrations as well as looking into the effects of pH and temperature.
Som en påföljd av de konsekvenser som klimatförändringen har orsakat, som till exempel svåra torkor tillsammans med en ökande världsbefolkning, har det blivit av allt större vikt att hanteringen av sötvatten sker på ett mer ansvarsfullt och hållbart sätt. Stormvatten brukar inte behandlas överhuvudtaget utan släpps tillbaka i miljön tillsammans med föroreningarna som det samlat på sig under sin väg, bland annat tungmetaller.Det finns redan ett antal metoder för att minska koncentrationen av tungmetaller i vatten, dock inte utan ekonomiska och praktiska svårigheter. Hur som helst så har det forskats en del kring en relativt ny metod som har tidigare visat goda resultat och skulle kunna konkurrera med befintliga lösningar, nämligen biosorption. I denna studie har man utforskat möjligheten att använda svampen Rhizopus oryzae tillsammans med ett organiskt fyllmedelsmaterial för biosorptionen av tungmetaller i stormvatten. De tungmetaller som undersöktes var Zn, Cu och Fe. Dessutom har man undersökt effekterna av ett förbehandlingssteg hos biomassan med NaOH tillsammans med det optimala förhållandet mellan biomassan och fyllemedelsmaterialet och retentionstiden för att maximera biosorptionen. Förbehandlingssteget visade en markant förbättring av biosorptionen. Fyllemedelsmaterialet hade för övrigt också en positiv inverkan genom att ytterligare öka biosorptionen. Ett 4:1 förhållande mellan biomassan och fyllemedelsmaterialet resulterade i det optimala förhållandet för komponenterna med tanke på biosorptionen. För retentionstiden visade det sig de bästa resultaten erhålles vid 2 timmar i lösningen. Emellertid visade det sig att användningen av den förbehandlade svampen tillsammans med fyllemedelsmaterialet inte var effektivt på stormvatten med en väldig låg tungmetallkoncentration, ungefär mellan 4 till 10 ppb. I framtiden skulle det vara intressant att undersöka inte bara metodens genomförbarhet på stormvatten med högre metallkoncentrationer, utan även hur pH-värde samt temperatur kan påverka resultaten.

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Emygdio, Ana Paula Mendes. „Identificação de bioaerossóis de origem fúngica na cidade de SãoPaulo“. Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/100/100136/tde-22042016-190752/.

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Há poucos estudos relacionados com a caracterização dos componentes biológicos presentes no material particulado atmosférico, chamados bioaerossóis. Esses componentes biológicos podem assumir uma relação direta com a deflagração de doenças e também estão relacionados com os processos climáticos, em especial como núcleos de formação de gelo. Dentre os bioaerossóis, foram estudados, neste trabalho, os fungos anemófilos, sendo os principais os Basidiomycota, Ascomycota e os Fungos mitospóricos. O objetivo desse trabalho foi estimar a contribuição dos aerossóis fúngicos para a composição biogênica do material particulado atmosférico da Região Metropolitana de São Paulo. Foram realizadas medidas em dois sítios: na Cidade Universitária e no Pico do Jaguará. Para isso, foram caracterizados os tipos fúngicos utilizando-se um microscópio ótico e estimada a massa dos aerossóis de origem fúngica utilizando-se biomarcadores. Foram realizadas coletas durante 2013, 2014 e 2015 com o amostrador Burkard 7-day Recording Sampler, sendo que em 2015 também foram realizadas coletas com filtros de quartzo com o amostrador Airmetrics MiniVol portable Sampler. Foram identificados e obtida a concentração dos tipos fúngicos observados na atmosfera da RMSP, sendo encontrados 39 grupos principais de fungos, sendo os principais os Basidiomycotas. A concentração média total foi de 5736 (± 2459) esporos/m³ por dia. Os Ascomycota, Basidiomycota e os fungos mitospóricos se correlacionaram com as variáveis meteorológicas de forma diferente. Observou-se variação da concentração de esporos durante os diferentes períodos do dia, sendo que a maior concentração de esporos ocorreu na madrugada, possivelmente devido às condições meteorológicas (elevada umidade e temperaturas mais amenas), contudo a concentração dos fungos mitospóricos foi maior durante o período da tarde, principalmente devido aos mecanismos de liberação de esporos. No verão e na primavera foram obtidas as maiores concentrações de Ascósporos e Basidiósporos e no inverno e outono foram obtidas as maiores concentrações dos fungos mitospóricos. Além disso, observou-se uma correlação positiva e significativa entre a concentração de esporos totais e o material particulado inalável (MP10), indicando que ambos são influenciados da mesma forma pelas variáveis meteorológicas e/ou tem uma fonte em comum, como por exemplo a ressuspensão da poeira do solo. O Arabitol, Manitol, Treitol e os esporos de fungos são positivamente correlacionados, indicando que os três açucares podem ser traçadores de esporos de fungos na atmosfera. Utilizando-se um fator de conversão proposto na literatura foi possível estimar que 2% da concentração do MP10 e 8% da concentração do OC estão associados aos esporos de fungos, indicando a importância dos esporos fúngicos. Com o uso de modelos receptores foram observadas 6 fontes para o MP10: queima de biomassa resultante de processos industriais; queima de biomassa resultante da queima da vegetação; aerossóis fúngicos; formação de aerossol secundário; ressuspensão do solo e emissão veicular. Esses resultados constituem um avanço para a pesquisa em bioaerossóis no Brasil, já que muitas dessas análises ainda não haviam sido realizadas em áreas urbanas no Brasil
Although the biogenic components of Particulate Matter (PM) can have a direct relationship with the outbreak of respiratory diseases and can be linked to changes in climate processes there are very few studies related to its characterization in the atmospheric aerosols. Among the bioaerosols, the airborne fungi were studied, and the Basidiomycota, Ascomycota and Mitosporic fungi were the main characterized. The goal of this work was to estimate the contribution of the fungal aerosol to the RMSP atmosphere, with samplings in two sites: Cidade universitária (USP) and Pico do Jaraguá (PJ). For that, the fungi types were characterized using an optical microscope and it was estimated the mass of the fungal aerosol using biomarkers. Sampling was carried out during 2013, 2014 and 2015 with the \"Burkard 7-day Recording Sampler\", and in 2015, filters were sampled with the \"Airmetrics MiniVol portable Sampler. It was identified and determined the concentration of the fungi types observed in the RMSP atmosphere, and were found 39 main groups of fungi. The main group was the Basidiomycota. The mean concentration of the total fungi was 5736 (± 2459) spores/m³ per day. The Ascomycota, Basidiomycota and the mitosporic fungi correlated in different ways with the meteorological variables. A variation of the spores concentration during different times of the day was observed, with the occurrence of the highest concentration of spores at dawn, possibly due to weather conditions (high humidity and cooler temperatures), but the concentration of the mitosporic fungi was higher during the afternoon, mainly due to the spores release mechanisms. In the summer and spring were observed higher concentrations of Ascospores and Basidiospores and in the autumn and winter were obtained higher concentration of Mitospores. Besides that, it was also observed a positive and significant correlation between the fungal spore with the particulate matter, indicating that both are influenced in the same way by weather variables and/or has a common source such as soil resuspension. Arabitol, Mannitol, Threitol and the fungi spores are positive correlated, indicating that these three sugar alcohols can be a tracer for fungi spores in the atmosphere. Using the conversion factor proposed in the literature was possible to estimate that 2% of the PM10 concentration and 8% of the OC concentration it is due to fungi spores, indicating its importance. Using receptor modeling it was identified six sources for PM10, the biomass burning resulting from industrial processes, the biomass burning resulting from vegetation burning, the fungal aerosol, the secondary formation aerosol, the soil resuspension and vehicular emission. These results are a breakthrough for research on bioaerosols in Brazil, since many of this analyzes had never been performed in urban areas in Brazil

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Pita, Guerreiro Maria. „MYCELIUM MILLENNIUM“. Thesis, Konstfack, Industridesign, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:konstfack:diva-7324.

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MYCELIUM MILLENNIUM imagines a new era in which biological resources, specifically Fungi and Mycelium, are used to grow a collection of objects for everyday domestic rituals, merging biofabrication and traditional craft. The project is an effort to demystify the transformation of an organism to a biomaterial and at the same time raise questions of aesthetics and cultural acceptance. The fungal mycelium material qualities – antibacterial, fire-resistant, heat isolating and water-resistant – are incorporated in the function of each design. The objects adopt antique symbols embedding them in a longer material history, as well as a scale and form that introduces the fungal material to the context of the home. While the collection attempts to stress longevity and resilience, it is integrated into a circular vision, where the material is sourced from nature and returns to nature. MYCELIUM MILLENNIUM is an invitation to raise awareness for a material revolution, an opportunity to learn from nature and its potential, where products and objects could match the planet's needs.

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Tascioglu, Cihat. „Impact of Preservative Treatments and Fungal Exposure on Phenolic Fiber Reinforced Polymer (FRP) Composite Material Utilized in Wood Reinforcement“. Fogler Library, University of Maine, 2002. http://www.library.umaine.edu/theses/pdf/TasciogluC2002.pdf.

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Karamanlioglu, Mehlika. „Environmental degradation of the compostable plastic packaging material poly(lactic) acid and its impact on fungal communities in compost“. Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/environmental-degradation-of-the-compostable-plastic-packaging-material-polylactic-acid-and-its-impact-on-fungal-communities-in-compost(6caccf89-2f88-461c-999b-8d89c6be67e9).html.

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Conventional plastics have been used for decades in a diverse range of applications, however, many are resistant to degradation, leading to environmental pollution and their manufacture is dependent on non-renewable fossil fuels. Therefore, there has been an increasing need for eco-friendly biodegradable materials from renewable resources. Poly(lactic acid) (PLA) is a compostable polyester with a hydrolysable backbone that is susceptible to biodegradation and produced from renewable feedstocks. PLA has mechanical qualities comparable to non-biodegradable plastics, and currently is commercialized as food-packaging polymer for short shelf-life products. However, while PLA hydrolysis at elevated temperatures proceeds abiotically, ultimately releasing lactic acid and short chain oligomers, the role of microorganisms is unclear. Since PLA short-shelf life products are disposed after use, understanding the role of microorganisms and the effect of degradation on microbial populations in the environment is important. Therefore, the aims of this research was to (a) determine the relative importance of biotic and abiotic factors on PLA degradation; (b) to isolate putative fungal PLA degraders from the surface of PLA when buried in compost or soil and to test their ability to degrade PLA; (c) to assess the impact of PLA degradation on fungal communities when entering compost systems. The roles of abiotic and biotic factors in the degradation of high molecular weight PLA were investigated by comparing degradation rates in compost, soil and sterile water at temperatures of 25°, 37°, 45°, 50° and 55°C. Tensile strength loss and molecular weight decline of PLA in microorganism-rich compost and soil were greater than chemical hydrolysis in sterile water at elevated temperatures (above 45°C) indicating microorganisms can directly enhance PLA degradation. Since extensive fungal growth was observed on the surface of PLA when buried in compost and soil, putative fungal PLA degraders were isolated from PLA surface and their community profile on PLA surface was compared with the compost and soil community with a molecular method, terminal restriction fragment polymorphism (TRFLP). Among the identified fungi, Thermomyces lanuginosus was the dominant isolate recovered and shown to enhance PLA degradation in compost at 50°C. The fungal community profile on PLA surface was different than the fungal profile in compost and soil suggesting enrichment for PLA degraders on the surface of PLA. In order to determine the impact of PLA degradation on the fungal compost community, two different high molecular weight PLA sources, films and granules were buried in compost at 10%, 25% and 50% (w/w) concentration for 4 months at 25°C and 50°C and the community profile analysed by TRFLP and pyrosequencing. TRFLP revealed that when PLA did not degrade, the fungal community shifted back toward the initial compost community profile, however, when PLA degraded to its monomers releasing lactic acid at 50°C at a concentration of 50% (w/w) it changed the fungal community profile and decreased the fungal diversity. Pyrosequencing revealed that the presence of PLA enriched for Thermomyces in the compost population over time.

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Seo, Sung-Chul. „Development and Application of a New Methodology for Separation and Analysis of Submicrometer-Sized Fungal Particles in Laboratory and Field Study“. University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1193877506.

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Marques, Natália Paganini [UNESP]. „Prospecção de enzimas de degradação de materials vegetal em fungos endofíticos“. Universidade Estadual Paulista (UNESP), 2013. http://hdl.handle.net/11449/88017.

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Made available in DSpace on 2014-06-11T19:23:06Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-08-16Bitstream added on 2014-06-13T19:08:55Z : No. of bitstreams: 1 marques_np_me_araiq_parcial.pdf: 117061 bytes, checksum: 111016526ed0a98902d9d6c8b01f9d3b (MD5) Bitstreams deleted on 2015-06-22T12:53:53Z: marques_np_me_araiq_parcial.pdf,. Added 1 bitstream(s) on 2015-06-22T12:54:47Z : No. of bitstreams: 1 000721712_20150917.pdf: 105117 bytes, checksum: bd9855c12b3ec4afdcb5547ce783e4e6 (MD5) Bitstreams deleted on 2015-09-17T16:31:32Z: 000721712_20150917.pdf,. Added 1 bitstream(s) on 2015-09-17T16:32:27Z : No. of bitstreams: 1 000721712.pdf: 835904 bytes, checksum: fd7bf1792a2e5436543d83a39fa9040f (MD5)
Os fungos filamentosos são conhecidos por sua notável capacidade de produção de enzimas, particularmente as de degradação de material vegetal. O campo de aplicações industriais destas enzimas tem crescido consideravelmente, especialmente em relação às celulases, que tem sido extensivamente estudadas visando à sacarificação da celulose para a obtenção de etanol de segunda geração. Os fungos endofíticos estão entre os potenciais produtores de enzimas de degradação de material vegetal, são pouco estudados neste sentido e, uma vez que colonizam os tecidos vegetais, suas enzimas devem apresentar características interessantes do ponto de vista do ataque aos componentes da parede celular. Dentro deste contexto, o presente estudo teve por finalidade a prospecção de celulases, xilanases, pectinases e amilases entre fungos endofíticos, bem como estudos da produção e das características das enzimas. Inicialmente, 14 fungos endofíticos foram cultivados por fermentação estado sólido (FES) em bagaço de cana-de-açúcar e farelo de trigo (1:1 m/m), durante 7 dias, a 28 °C. Nesta etapa, 8 fungos se destacaram na produção de celulases e foram posteriormente cultivados, em FES, em outras misturas de substratos lignocelulósicos. Os isolados Botryosphaeria sp. AM01 e Saccharicola sp. EJC04 foram os mais versáteis em relação à produção das enzimas em diferentes meios, sendo selecionados para dar continuidade ao trabalho. A partir desta etapa foram focadas as produções de celulases e xilanases, visando à aplicação destas enzimas em trabalhos futuros envolvendo a sacarificação de materiais lignocelulósicos. O substrato selecionado foi composto por farelo de algodão e farelo de trigo e a influência do tempo de cultivo, da concentração de inóculo e da umidade inicial do substrato foram avaliadas, pelo cultivo em...
Filamentous fungi are known for their remarkable ability for enzymes production, particularly those for plant material degradation. The field of industrial applications of these enzymes has increased considerably, particularly regarding to cellulases which have been extensively studied for cellulose saccharification aiming the production of second generation ethanol. Endophytic fungi are among the potential producers of enzymes for plant material degradation. They are underexplored in this sense and, once they colonize the plant tissues. Their enzymes should present interesting features from the point of view of the attack to the cell wall components. In this context, the present study had as purpose the prospecting of cellulases, xylanases, pectinases and amylases among endophytic fungi, as well as studies of the enzymes production and characteristics. As an initial evaluation of enzymes production, 14 endophytic fungi were cultivated under solid state fermentation (SSF) in sugar cane bagasse and wheat bran (1:1 w/w), for 7 days, at 28 ºC. In this phase, 8 fungi stood out and were subsequently cultivated by SSF, in other mixtures of lignocellulosic substrates. The isolates Botryosphaeria sp. AM01 and Saccharicola sp. EJC04 were the most versatile in relation to enzymes production on different substrates and were selected to continue the work. From this stage on the productions of cellulases and xylanases were focused, aiming the application of these enzymes in future studies involving the saccharification of lignocellulosic materials. The selected substrate was composed by cotton bran and wheat bran and the influence of cultivation time, concentration of inoculum and substrate initial moisture were evaluated, by FES.For almost all the enzymes produced by the two fungi, the peak of production occurred in 192h or... (Complete abstract click electronic access below)

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Bücher zum Thema "Fungal material"

Arun, Arya, Hrsg. Studies on some fungal biodeteriogens. Delhi: Bharatiya Kala Prakashan, 2000.

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The material culture of death in medieval Japan. Honolulu: University of Hawaii Press, 2009.

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Tortić, Milica. Materials for the mycoflora of Macedonia (Yugoslavia). Skopje: Macedonian Academy of Sciences and Arts, 1988.

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Maksimenkov, G. A. Materialy po ranneĭ istorii tagarskoĭ kulʹtury. Sankt-Peterburg: PV, 2003.

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Verona, Onorato. Il vasto mondo dei funghi: Distruttori e rigeneratori della materia. Bologna: Edagricole, 1985.

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Doveri, F. Fungi fimicoli italici: A guide to the recognition of basidiomycetes and ascomycetes living on faecal material = guida al riconoscimento dei basidiomiceti e degli ascomiceti che vivono su materia fecale. Trento: Associazione micologica Bresadola, 2004.

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The fungal pharmacy: The complete guide to medicinal mushrooms and lichens of North America. Berkeley, Calif: North Atlantic Books, 2011.

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Anikin, V. V. Materialy dli︠a︡ Krasnoĭ knigi Respubliki Kalmykii︠a︡. Ėlista: Kalmyt︠s︡kiĭ gos. universitet, 2005.

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Arfman, William R. Analysing Allerzielen Alom: Material culture in an emerging rite. Leiden: Sidestone Press, 2011.

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B, Yeats W. Parnell's funeral and other poems from A full moon in March: Manuscript materials. Ithaca, N.Y: Cornell University Press, 2003.

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Buchteile zum Thema "Fungal material"

He, Yu-Cai, Cui-Luan Ma und Bin Yang. „Pretreatment Process and Its Synergistic Effects on Enzymatic Digestion of Lignocellulosic Material“. In Fungal Cellulolytic Enzymes, 1–25. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0749-2_1.

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Santos, Cledir, Paula Galeano, Reginaldo Lima Neto, Manoel Marques Evangelista Oliveira und Nelson Lima. „MALDI-TOF MS and its requirements for fungal identification.“ In Trends in the systematics of bacteria and fungi, 119–40. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789244984.0119.

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Abstract Matrix-assisted laser desorption/ionization time of flight mass spectrometry (MALDI-TOF MS) is now used as a routine technique for the fast and reliable identification of fungi at the species level and, currently, it represents an important phenotypic methodology based on proteomic profiles. The main limitations to MALDI-TOF MS for fungal identification are related to sample quality (e.g. quality of biological material such as rigidity or pigmentation of cell walls), sample preparation (e.g. the myriad of sample preparation methodologies that deliver different data sets to different MALDI-TOF MS databases) and the databases themselves (e.g. the 'black-box' commercial databases). This chapter presents an overview and discussion of the use of MALDI-TOF MS for fungal identification. The major known limitations of the technique for fungal taxonomy, and how to overcome these, are also discussed.

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Bridge, Paul. „Can older fungal sequence data be useful?“ In Trends in the systematics of bacteria and fungi, 69–82. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789244984.0069.

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Abstract This chapter focuses primarily on the use and evaluation of fungal nucleotide sequences to obtain information that can be used to elucidate relationships between strains and specimens. The importance of the reexamination and evaluation of older material in order to identify new species derived from existing taxa that had previously been considered under wider concepts or acknowledged as species complexes is also discussed.

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Gullino, M. Lodovica, Giovanna Gilardi und Angelo Garibaldi. „Seed-Borne Fungal Pathogens of Leafy Vegetable Crops“. In Global Perspectives on the Health of Seeds and Plant Propagation Material, 47–56. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-9389-6_4.

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Vannacci, Giovanni, Sabrina Sarrocco und Angelo Porta-Puglia. „Improved Detection and Monitoring of Seed-Borne Fungal Plant Pathogens in Europe“. In Global Perspectives on the Health of Seeds and Plant Propagation Material, 67–85. Dordrecht: Springer Netherlands, 2014. http://dx.doi.org/10.1007/978-94-017-9389-6_6.

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Galanopoulou, Anastasia P., und Dimitris G. Hatzinikolaou. „Fungi in Consolidated Bioprocessing of Lignocellulosic Materials“. In Fungal Applications in Sustainable Environmental Biotechnology, 275–305. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-42852-9_11.

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Adan, Olaf C. G. „The fungal resistance of interior finishing materials“. In Fundamentals of mold growth in indoor environments and strategies for healthy living, 335–52. Wageningen: Wageningen Academic Publishers, 2011. http://dx.doi.org/10.3920/978-90-8686-722-6_12.

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Kaiser, J. P., S. Trümpler und P. Raschle. „Fungal Growth on Medieval Glass Paintings“. In Microbially Influenced Corrosion of Materials, 353–57. Berlin, Heidelberg: Springer Berlin Heidelberg, 1996. http://dx.doi.org/10.1007/978-3-642-80017-7_25.

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Svecova, Lenka, Martin Kubal und Eric Guibal. „Waste Fungal Biomass for Mercury Biosorption – Column Studies“. In Advanced Materials Research, 623–26. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-452-9.623.

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Singla, Amneesh, S. Krishna Moorthi und Adil Rahiman. „Electrochemical Materials from the Fungal Mineralization of Manganese“. In Springer Proceedings in Energy, 31–37. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-63085-4_5.

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Konferenzberichte zum Thema "Fungal material"

Grajdieru, Cristina. „Molecular identification of Aflatoxin-producing aspergillus strains in maize seed-material“. In International Scientific Symposium "Plant Protection – Achievements and Prospects". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2020. http://dx.doi.org/10.53040/9789975347204.66.

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Toxigenic fungi are part of soil microbiota and natural inhabitants of agrocenosises and crops. Aflatoxins produced by several Aspergillus species are hazardous biological compounds known as potent carcinogens. Using PCR-based assays, a successful identification of toxigenic A. flavus and A. parasiticus strain was performed. Fungal genome sequences associated with aflatoxin production as target sequences were proved to be effective for identification of toxigenic Aspergillus species.

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VASILIAUSKIENĖ, Dovilė, Giedrius BALČIŪNAS und Jaunius URBONAVIČIUS. „ISOLATION AND IDENTIFICATION OF FUNGI GROWING ON FIBRE HEMP SHIVE BASED THERMAL INSULATION MATERIALS“. In Conference for Junior Researchers „Science – Future of Lithuania“. VGTU Technika, 2018. http://dx.doi.org/10.3846/aainz.2018.007.

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Green thermal insulation materials are ecological materials with hemp, linen, jute, wood waste, maize starch, and other types of waste added to polymer-based composites. Such kind of materials are susceptible to the microbial action which can lead to changes of physico-chemical properties of materials, their destruction and also health problems in humans. Here, we isolated and identified several fungal strains that grow on fibre hemp shive based materials. Three isolates were identified as belonging to Trichoderma (Hypocrea) genus. Our further experiments will be concentrated on the monitoring of growth of newly isolated fungi on and/or inside the materials of interest, isolation and characterisation of the hydrolytic enzymes as well as following the mode of material destruction caused by the fungal growth.

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Ligne, L., J. Bulcke, J. Baetens, B. Baets und J. Acker. „Bio-Based Building Materials-How to Unravel the Role of Material Characteristics on Fungal Susceptibility?“ In XV International Conference on Durability of Building Materials and Components. CIMNE, 2020. http://dx.doi.org/10.23967/dbmc.2020.195.

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Chou, Fong-In, Chia-Chin Li, Tzung-Yuang Chen und Hsiao-Wei Wen. „Microbial Occurrence in Bentonite-Based Buffer Materials of a Final Disposal Site for Low Level Radioactive Waste in Taiwan“. In ASME 2010 13th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2010. http://dx.doi.org/10.1115/icem2010-40284.

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This research addresses the potential of microbial implications in bentonite for use as a buffer and backfill material in final disposal site for low-level radioactive waste (LLRW) in Taiwan, where has a special island-type climate. Microbe activities naturally present in this site were analyzed, and buffer materials (BM) consisted of 100%, 70% or 50% bentonite were prepared for laboratory studies. A total of 39 microbial strains were isolated, and the predominant strains included four bacterial, one yeast and four fungal strains. Growth inhibition was not detected in any tested strain cultured in a radiation field with a dose rate of 0.2 Gy/h. Most of the isolated strains grew under a dose rate of 1.4 Gy/h. The D10 values of the tested strains ranged from 0.16 to 2.05 kGy. The mycelia of tested fungal strains could spread over 5 cm during six months of inoculation in BM. The spreading activity of the tested bacteria was less than that of the fungi. Moreover, biofilms were observed on the surfaces of the BM. Since a large and diverse population of microbes is present in Taiwan, microbes may contribute to the mobilization of radionuclides in the disposal site.

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Sidarenka, A. V., H. A. Bareika, L. N. Valentovich, D. S. Paturemski, V. N. Kuptsou, M. A. Titok und E. I. Kalamiyets. „Molecular diagnostics of bacterial and fungal plant diseases“. In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.229.

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Taxon-specific primers were developed and PCR conditions were optimized for diagnostics of bacterial and fungal plant pathogens. Methods for phytopathogens DNA isolation from plant material, soil and water were selected.

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Robertson, Owen, Frederik Høgdal, Lukas Mckay und Torben Lenau. „Fungal Future: A review of mycelium biocomposites as an ecological alternative insulation material“. In Proceedings of NordDesign 2020. The Design Society, 2020. http://dx.doi.org/10.35199/norddesign2020.18.

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Fortuna, Jorge Luiz. „FUNGA CULTURAL: MICOLOGIA FILATÉLICA DO BRASIL“. In II Congresso Brasileiro de Ciências Biológicas On-line. Revista Multidisciplinar de Educação e Meio Ambiente, 2021. http://dx.doi.org/10.51189/rema/1233.

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Introdução: Fungos são seres vivos ubíquos, heterotróficos uni ou multicelulares, morfologicamente diversificados, importantes para o ecossistema, reciclagem da matéria orgânica e equilíbrio ecológico. Além dessas funções biológicas, os fungos, de uma maneira geral, fazem parte do imaginário coletivo sociocultural, sendo encontrados em diferentes estampas, desenhos infantis, jogos eletrônicos, filmes, desenhos animados, etc. Diversidade cultural define-se como diversidade biológica, cultural e linguística, incluindo inter-relações, dentro do complexo sistema adaptativo socioecológico. Este trabalho propõe o termo “Funga Cultural” como estudo da presença fúngica nas diferentes manifestações culturais. Como exemplo de manifestação cultural, este trabalho trata de relacionar fungos com filatelia. Objetivos: Realizar um inventário dos selos postais e comemorativos brasileiros que apresentam imagens de fungos, além de analisar suas representações na Funga Cultural e citar a classificação taxonômica das espécies estampadas nos selos. Material e Métodos: Pesquisa utilizou o “Catálogo de Selos do Brasil RHM”, principal obra de referência filatélica do país, sendo utilizada pelos colecionadores e comerciantes de selos brasileiros. Foram analisados todos os selos postais comemorativos emitidos pela Empresa de Correios e Telégrafos do Brasil durante o período de 1900-2019. Resultados: Desde o ano de 1900 até 2019, o Brasil emitiu 3.877 selos comemorativos. Desses, apenas dez (0,26%) têm estampas de fungos, distribuídos em três diferentes séries: três selos da série “Fungos”; um selo da série “Estação Ecológica do Taim-RS”; e seis selos da série “Diversidade de Fungos”. Os nomes científicos das espécies estão estampados nos selos. Exceto um selo da série Estação Ecológica. Porém, de acordo com suas características fenotípicas, provavelmente pertence ao filo Basidiomycota. Essa série é formada por uma dupla de selos e o fungo aparece somente no primeiro deles. Os táxons estampados nos outros selos foram: Pycnoporus sanguineus; Calvatia sp.; Pleurotus sp.; Clathrus chrysomycelinus; Clathrus columnatus; Geastrum violaceum; Hydnopolyporus fimbriatus; Laetiporus gilbertsonii e Oudemansiella cubensis. Conclusão: Os fungos apresentam pouca representatividade nos selos comemorativos brasileiros. Os selos fazem parte da cultura humana e aqueles com estampas de fungos podem ser inseridos como representantes da Funga Cultural. Ademais, pode-se usar o selo como mais um recurso didático no ensino da funga e na divulgação científica.

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Piecková, E., Z. Pivovarová, Z. Sternová und E. Droba. „Building materials vs. fungal colonization–model experiments“. In ENVIRONMENTAL HEALTH RISK 2007. Southampton, UK: WIT Press, 2007. http://dx.doi.org/10.2495/ehr070081.

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Stetzenbach, L., M. Buttner und P. Cruz-Perez. „243. Fungal Spores Aerosolized from Contaminated Flooring Materials“. In AIHce 1999. AIHA, 1999. http://dx.doi.org/10.3320/1.2763087.

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Nunes, L;. „Fungal degradation of wood in buildings“. In RILEM International Conference on Microbial Impact on Building Materials. RILEM Publications SARL, 2003. http://dx.doi.org/10.1617/2351580184.009.

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Berichte der Organisationen zum Thema "Fungal material"

Jones, Robert M., Alison K. Thurston, Robyn A. Barbato und Eftihia V. Barnes. Evaluating the Conductive Properties of Melanin-Producing Fungus, Curvularia lunata, after Copper Doping. Engineer Research and Development Center (U.S.), November 2020. http://dx.doi.org/10.21079/11681/38641.

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Melanins are pigmented biomacromolecules found throughout all domains of life. Of melanins’ many unique properties, their malleable electrically conductive properties and their ability to chelate could allow them to serve as material for bioelectronics. Studies have shown that sheets or pellets of melanin conduct low levels of electricity; however, electrical conductance of melanin within a cellular context has not been thoroughly investigated. In addition, given the chelating properties of melanin, it is possible that introducing traditionally con-ductive metal ions could improve the conductivity. Therefore, this study investigated the conductive properties of melanized cells and how metal ions change these. We measured the con-ductivity of pulverized Curvularia lunata, a melanized filamentous fungi, with and without the addition of copper ions. We then com-pared the conductivity measurements of the fungus to chemically synthesized, commercially bought melanin. Our data showed that the conductivity of the melanized fungal biomass was an order of magnitude higher when grown in the presence of copper. However, it was two orders of magnitude less than that of synthetic melanin. Interestingly, conductance was measurable despite additional constituents in the pellet that may inhibit conductivity. Therefore, these data show promising results for using melanized cells to carry electrical signals.

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Shah, Manish M. Bio-Treatment of Energetic Materials Using White-Rot Fungus. Office of Scientific and Technical Information (OSTI), November 1998. http://dx.doi.org/10.2172/1405063.

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MM Shah. Bio-Treatment of Energetic Materials Using White-Rot Fungus. Office of Scientific and Technical Information (OSTI), November 1998. http://dx.doi.org/10.2172/1830.

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Stoyancheva, Galina, Ekaterina Krumova, Nedelina Kostadinova, Jeny Miteva-Staleva, Petar Grozdanov, Mohamed F. Ghaly, Akmal A. Sakr und Maria Angelova. Biodiversity of Contaminant Fungi at Different Coloured Materials in Ancient Egypt Tombs and Mosques. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, Juli 2018. http://dx.doi.org/10.7546/crabs.2018.07.06.

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