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Tytuł:
Covid-19 and mucormycosis (Black Fungus): An epidemic within the pandemic
Autorzy:
Gambhir, R.S.
Aggarwal, A.
Bhardwaj, A.
Kaur, A.
Sohi, R.K.
Mehta, S.
Powiązania:
https://bibliotekanauki.pl/articles/2085943.pdf
Data publikacji:
2021
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
COVID-19
SARS-CoV-2 pandemic
mucormycosis
India
diabetes
Black fungus
Opis:
The second wave of the COVID-19 pandemic has affected India significantly with country reporting more than 400,000 cases in the month of May 2021 and health system almost collapsing. This was attributed to the new mutant strain also called as the ‘Delta Strain’ which led to high surge of cases across the country. As the country was stabilising over this situation, another imminent threat in the form of Covid Associated Mucormycosis (CAM) challenged the already burdened health system of India. Also called as ‘Black Fungus,’ cases of CAM began to rise rapidly in the last week of May 2021 with multiple states reporting steady rise in the number of cases. Based on the published literature, India contributed to approximately 71% of global cases of CAM from December 2019 to start of April 2021, with majority of the cases occurring during the second wave. The present paper focuses on the epidemic of CAM during the second wave in India highlighting the causes, symptoms and various treatment modalities that have been adopted to cure the disease. Also, spotlight has also been thrown on some other nations where cases of CAM have begun to emerge. Some key recommendations are also mentioned which can prove vital towards disease prevention.
Źródło:
Roczniki Państwowego Zakładu Higieny; 2021, 72, 3; 239-244
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
First report of the white rotting fungus Sarcodontia crocea in Armenia
Autorzy:
Gasparyan, Arsen
Szczepkowski, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2041283.pdf
Data publikacji:
2021
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
apple tooth fungus
biodiversity
distribution
Polyporales
South Caucasus
Opis:
The Sarcodontia crocea (Schwein.) Kotl. is recorded for the first time from Armenia. The specimen has been collected from the old fallen branch of apple tree (Malus sp.) and known from the single locality, the private orchard at the Vahagni village, Lori province. Herein, the collected specimen, habitat and threats are briefly described. Further inclusion to the Red Data Book of Armenia is recommended.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2021, 63, 1; 65-67
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Parch srebrzysty (Helminthosporium solani) – objawy i zwalczanie
Silver scab (Helminthosporium solani) – symptoms and control
Autorzy:
Osowski, Jerzy
Urbanowicz, Janusz
Powiązania:
https://bibliotekanauki.pl/articles/2199399.pdf
Data publikacji:
2021-06-25
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
choroba skórki, grzyb, Helminthosporium solani, zwalczanie, ziemniak
disease control, fungus, Helminthosporium solani, potato, skin disease
Opis:
Utrzymujące się od lat zapotrzebowanie rynku i konsumentów na produkty przetworzone z ziemniaków oraz popyt na ziemniaki myte i paczkowane sprawiają, że jakość bulw (gładka skórka, brak oznak chorób) oraz przydatność do przetwórstwa mają duże znaczenie. Tendencja taka sprawia, że każdy patogen powodujący uszkodzenia skórki nabiera znaczenia ekonomicznego. Jednym z nich jest grzyb Helminthosporium solani sprawca parcha srebrzystego. Znaczenie choroby i jego sprawcy wynika także i z innych czynników, spośród których znaczenie ma brak odmian odpornych, złożony cykl rozwoju choroby z mniej znaczącą fazą polową i trudną do opanowania fazą rozwoju podczas przechowywania. Dodatkowym czynnikiem jest także brak dostępnych środków do chemicznego zwalczania choroby. Stwierdzona w latach 70-tych i 80-tych XX w. odporność na tiabendazol stosowany zarówno wiosną jak i jesienią była jedną z ważniejszych przyczyn wzrostu znaczenia choroby. Ze względu na złożony cykl rozwoju choroby (faza polowa i przechowalnicza) zwalczanie tej choroby jest trudne i wymaga zastosowania wszystkich dostępnych metod w ochronie integrowanej.
The long-standing market and customer demand for processed potato products and the demand for washed and packaged potatoes mean that tubers' quality (smooth skin, no signs of disease) and suitability for processing are of great importance. This tendency makes any pathogen causing skin damage of economic importance. One of them is the fungus Helminthosporium solani, the preparator of silver scab. The importance of the disease and its cause is also due to other factors: the lack of resistant varieties, the complex cycle of disease development with a less significant field phase, and a difficult-to-control phase of development during storage. An additional factor is the lack of available chemical disease control agents. The resistance to thiabendazole used both in spring and autumn, found in the 1970s and 1980s, was one of the most important reasons for the increased importance of the disease. Due to the complex cycle of disease development (field and storage phase), combating this disease is difficult and requires all available methods of integrated protection.
Źródło:
Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin; 2021, 294; 35-50
0373-7837
2657-8913
Pojawia się w:
Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Endophytic colonization of tomato by Beauveria bassiana for control of the greenhouse whitefly, Trialeurodes vaporariorum (Hemiptera: Aleyrodidae)
Autorzy:
Pourtaghi, Eliza
Talaei-Hassanloui, Reza
Nasibi, Fatemeh
Fotouhifar, Khalil-Berdi
Powiązania:
https://bibliotekanauki.pl/articles/1386369.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
colonization
endophyte
entomopathogenic fungus
leaf spray
Whitefly
kolonizacja
endofit
grzyb entomopatogenny
dolistny aerosol
mączlik
Opis:
We evaluated the efficacy of four different methods for endophytic inoculation of entomopathogenic fungus Beauveria bassiana in tomato plants. Fourteen days after inoculation, root dipping and leaf spraying allowed recovery of B. bassiana from leaves, while the fungus was recovered from roots in all inoculation methods, except soil drenching. Significant increases in mortalities of nymphs and adults of the greenhouse whitefly, 36 to 52%, were recorded on B. bassiana-endophyt plants. The total phenolic and protein contents of tomato plants were increased by endophyte colonization. Results of this study confirm the efficiency of foliar spraying of B. bassiana for colonization in tomato plants and its insecticidal activity against whitefly. The persistence of B. bassiana as endophyte was confirmed up to 56 days after inoculation. Given the insecticidal activity and beneficial effects of the endophyte on plant growth, B. bassiana could be considered as a suitable element in integrated pest management.
Oceniliśmy skuteczność czterech różnych metod endofitycznej inokulacji entomopatogennego grzyba Beauveria bassiana do pomidorów. 14 dni po zaszczepieniu stwierdzono obecność B. bassiana w liściach w przypadku inokulacji poprzez zanurzanie korzeni i oprysk liści, natomiast obecność grzyba w korzeniach stwierdzono przy wszystkich metodach inokulacji, z wyjątkiem zwilżania gleby. Na pomidorach zainfekowanych B. bassiana odnotowano znaczny wzrost śmiertelności nimf i osobników dorosłych mączlika szklarniowego, wynoszący od 36 do 52%. Całkowita zawartość fenoli i białka w tkankach pomidora wzrosła w wyniku kolonizacji endofitów. Wyniki badań potwierdzają skuteczność oprysku dolistnego B. bassiana w kolonizacji pomidora i jego owadobójcze działanie na mączlika szklarniowego. Trwałość B. bassiana jako endofitu została potwierdzona do 56 dni po inokulacji. Biorąc pod uwagę aktywność owadobójczą i korzystny wpływ endofitu na wzrost roślin, B. bassiana można uznać za odpowiedni element zintegrowanej ochrony roślin przed szkodnikami.
Źródło:
Acta Biologica; 2020, 27; 149-160
2450-8330
2353-3013
Pojawia się w:
Acta Biologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka techniczna drewna modrzewia dahurskiego (Larix gmellini (Rupr.) Kuzen.)
Characteristics of technical properties of Dahurian larch (Larix gmellini (Rupr.) Kuzen.) wood
Autorzy:
Jankowska, A.
Anders, B.
Wójcik, A.
Powiązania:
https://bibliotekanauki.pl/articles/980329.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
modrzew dahurski
Larix gmelinii
drewno modrzewiowe
budowa drewna
budowa mikroskopowa
charakterystyka techniczna
wlasciwosci fizyczne
wlasciwosci mechaniczne
larch
mechanical properties
physical properties
brown rot fungus
wood anatomy
Opis:
The wood present in trade in Poland named as ‘Siberian larch’, in fact belongs to two tree species: Larix sibirica Ledeb. and Larix gmelinii (Rupr.) Kuzen. The term itself is rather associated with the origin of wood. While Larix sibirica wood is the subject of many research, characteristics of Larix gmelinii still require additions. The main aim of this paper was to describe the technical properties of Dahurian larch wood. We characterised also the microstructure of the wood. Moreover, durability against fungi−caused brown rot was tested. The wood from the Chabarowsk area (Russia) was tested. The properties of wood were determined in accordance with the recom−mendations of the Polish standards. The obtained results allow to conclude that Dahurian larch wood is characterized by medium shrinkage and typical shrinkage anisotropy (total radial shrinkage was 5.0% and in the tangential direction 7.6%). With the average density of this wood in an air−dry state equal to 620 kg/m3, average mechanical properties are associated – modulus of elasticity 12.5 GPa and Janka hardness on the cross−section of 57 MPa. These values are similar to those of Siberian larch. Dahurian larch heartwoods is characterized by low durability (4th class of natural durability to fungi in a 5−degree scale). It causes that wood used in external environment require special attention and use of wood preservatives.
Źródło:
Sylwan; 2019, 163, 01; 47-54
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of Pleurotus abieticola ligninolytic activity on norway spruce wood
Autorzy:
Żółciak, Anna
Powiązania:
https://bibliotekanauki.pl/articles/2041965.pdf
Data publikacji:
2019
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
laccase
lignin peroxidase
manganese peroxidase
versatile peroxidase
spruce
white rot fungus
wood
Opis:
The effect of Phlebiopsis gigantea treatment in control of Heterobasidion parviporum in Norway spruce is less effective than that in control of Heterobasidion annosum in pine. It is necessary to apply other fungi, for example, Pleurotus abieticola in Norway spruce stands. Thus, it is necessary to assess the activity of major ligninolytic enzymes, that is, laccase, lignin peroxidase (LiP), manganese peroxidase (MnP) and versatile peroxidase (VP) produced by P. abieticola, which may be effective in the fast degradation of Norway spruce wood. Three strains of P. abieticola (Pa1-3) were grown on pieces of Norway spruce sapwood and heartwood for 50 days in laboratory conditions. Enzymatic activity was determined using spectrophotometry. Pleurotus abieticola produced laccase, LiP, MnP and VP. The activity of laccase was low, ranging 0–3.696 and 0–0.806 mU/μg of protein in sapwood and heartwood, respectively. The highest activity in Pa1 = 3.696 mU/μg of protein in sapwood and in Pa3 = 0.806 mU/μg of protein in heartwood was observed after 30 and 50 days of incubation, respectively. The activity of LiP was also low, ranging 0–0.188 and 0–0.271 mU/μg of protein in sapwood and heartwood, respectively. The highest activity in Pa1 = 0.271 mU/μg of protein in sapwood and in Pa2 = 0.188 mU/μg of protein in heartwood was observed after 40 and 20 days of incubation, respectively. The activity of MnP ranged 0–17.618 and 0–12.203 mU/μg of protein in sapwood and heartwood, respectively. This enzymatic activity peaked at the 50th day of culture on sapwood for the Pa3 strain (17.618 mU/μg of protein) and at the 20th day of culture on heartwood for the Pa1 strain (12.203 mU/μg of protein). The activity of VP with manganese-oxidising properties was found to be high in all strains of P. abieticola, ranging 0–39.19 and 0–59.153 mU/μg of protein in sapwood and heartwood, respectively, whereas the activity of VP with guaiacol-oxidising properties was very low for all P. abieticola strains, ranging 0–0.248 and 0–0.225 mU/μg of protein in sapwood and heartwood, respectively. The values of released hydroxyphenols in P. abieticola strains ranged 24.915–139.766 and 25.19–84.562 µg of protocatechuic acid/ml in sapwood and heartwood, respectively. The values of released methoxyphenols for the evaluated strains of P. abieticola ranged 7.225–23.789 and 1.953–20.651 µg of vanillic acid/ml in sapwood and heartwood, respectively. Further studies with a higher number of strains of this species as well as an optimisation of conditions for the measurement of ligninolytic activity are needed.
Źródło:
Folia Forestalia Polonica. Series A . Forestry; 2019, 61, 4; 267-277
0071-6677
Pojawia się w:
Folia Forestalia Polonica. Series A . Forestry
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pory roku a zbiorowisko grzybów zasiedlających pniaki czeremchy amerykańskiej
Seasonal changes in fungi colonies inhabiting black cherry stumps
Autorzy:
Baranowska, M.
Korzeniewicz, R.
Kartawik, N.
Behnke-Borowczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/979585.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewa lesne
gatunki inwazyjne
czeremcha amerykanska
Prunus serotina
fitopatologia
pniaki czeremchy
grzyby zasiedlajace drewno
grzyby mikroskopowe
identyfikacja
system Illumina
pory roku
illumina system
invasive species
dead wood
saprotrophs
wood−decay fungus
Opis:
Black cherry is an important invasive species in forest ecosystems in Poland. It developed mainly in Scots pine stands. The aim of the study was to identify microscopic fungi colonies inhabiting black cherry stumps. In the spring of 2017, wood samples were collected from stumps created after cutting in each subsequent month of 2016 in the Podanin Forest District (19°28'00'E, 52°04'00'N). Stumps up to 5 cm and more than 5 cm in diameter were selected for the study. In total, 72 discs from the first stage of the decomposition of wood were collected. The discs were drilled to obtain fine sawdust for further analysis. The trials were divided into four periods. DNA isolation was performed using the Plant Genomic DNA purification kit (ThermoScientific). The ITS1/2 rDNA region was used for species identification. The analysis was carried out using specific primers. The obtained product was purified and sequenced using the Illumina SBS technology. The resulting sequence was compared using the BLAST algorithm with reference sequences from the NCBI database. The communities of fungi inhabiting the black cherry stumps differed from each other. The highest number of taxa was identified in samples from stumps over 5 cm sheared in autumn and winter, while the lowest in stumps up to 5 cm sheared in spring and winter. Fungi belonging to the Ascomycota and Basidiomycota, Blastocladiomycota, Glomeromycota, Zygomycota and non−cultivable fungi and organisms belonging to other kingdoms were identified. Saprophytes from Menispora sp. dominated on the analysed stumps. The collection of fungi of larger stumps was more diverse and more numerous than on stumps with a smaller diameter. A greater diversity of taxa was distinguished by the stumps of tree fallen in the growing season. The majority of the analyzed samples were dominated by Ascomycota. Basidiomycota clusters dominated in the winter. The predominant share of saprotrophs shows the distribution of stumps. The most desirable effect of the research would be the indication of naturally occurring saprotroph, whose operation would reduce the black cherry’s yield strength. The applied method of sequencing based on the Illumina System was effective to determine the composition of the fungal population.
Źródło:
Sylwan; 2019, 163, 10; 872-880
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ Bacillus subtilis i Trichoderma asperellum na rozwój sadzonek brzóz zainfekowanych patogenem drobnych korzeni Phytophthora plurivora
Influence of Bacillus subtilis and Trichoderma asperellum on the development of birch seedlings infected with fine root pathogen Phytophthora plurivora
Autorzy:
Oszako, T.
Żółciak, A.
Tulik, M.
Tkaczyk, M.
Stocki, M.
Nowakowska, J.A.
Powiązania:
https://bibliotekanauki.pl/articles/985763.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
fitopatologia lesna
brzoza brodawkowata
Betula pendula
sadzonki
fytoftoroza
Phytophthora plurivora
rozwoj roslin
grzyby antagonistyczne
Trichoderma asperellum
bakterie antagonistyczne
Bacillus subtilis
oomycetes
bacterium
fungus
interactions
betula pendula
Opis:
Phytophthora pathogens cannot be controlled with well−known fungicides, because as oomycetes they do not synthesize chitin and ergosterol. Phytopathogenic microorganisms of Phytophthora genus offers an alternative to pesticides. The aim of the study was to understand the interactions among the host silver birch (Betula pendula), a common forest tree species in Polish lowlands and in lower mountain locations, and its primary pathogen Phytophthora plurivora as well as potential Biological Control Agents Bacillus subtilis and Trichoderma asperellum. The 2−year−old silver birch seedlings were selected for this experiment. Interactions between P. plurivora and B. subtilis, producing peptide antibiotics including polymyxin B and subtiline, stimulated growth of birch seedlings. Comparing to the control a stimulation of both height and root collar diameter of plants was observed when B. subtilis was added into the soil of pots. It is a saprophyte, decomposing organic compounds of plant origin. However, the application of bacterium into the rhizosphere soil stimulated more shoots growth than roots. The application of T. asperellum into the soil stimulated development of roots, and in consequences the above−ground parts of plants. However, in the combination with pathogen, T. asperellum protected the roots only partially. The presence of pathogen and its antagonists increases the biomass of birches compared to control plants. Chlorophyll fluorescence studies proved better parameters like total performance index (PI total) after application of B. subtilis, in contrast, interaction between B. subtilis and P. plurivora negatively affected photosynthesis causing weakening of plants. The higher content of carboxylic acids, observed in the variant with T. asperellum + P. plurivora, indicates the initiation of biochemical defence processes in birch leaves cells.
Źródło:
Sylwan; 2019, 163, 12; 1006-1015
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wzrost odnowień na gruntach porolnych prowadzonych w ramach przebudowy drzewostanu metodą sztucznych luk
Growth of broadleaved species on post-agricultural lands introduced during the process of stand conversion with a use of artificial gaps
Autorzy:
Zachara, T.
Powiązania:
https://bibliotekanauki.pl/articles/1291881.pdf
Data publikacji:
2019
Wydawca:
Instytut Badawczy Leśnictwa
Tematy:
lesnictwo
grunty porolne
hodowla lasu
odnowienia lasu
sosna zwyczajna
Pinus sylvestris
huba korzeni
przebudowa drzewostanow
luki drzewostanowe
gatunki domieszkowe
dab bezszypulkowy
buk zwyczajny
lipa drobnolistna
przebudowa drzewostanu
dąb bezszypułkowy
Scots pine
root-rot fungus
forest conversion
sessile oak
common beech
small-leaved lime
Opis:
This paper presents results on the restoration of Scots pine stands established on post-agricultural lands undergoing conversion into mixed stands. Sessile oak (Quercus petraea), common beech (Fagus sylvatica) and small-leaved lime (Tilia cordata) seedlings were planted in artificially created gaps (0,02 ha to 0,05 ha each) cut in six experimental plots (Forest Districts: Bielsk, Krynki, Sobibór, Dobieszyn, Skrwilno and Łupawa) located in 20–25-years-old pine stands. The experimental plots were spread across northern, central and eastern Poland and affected by root-rot fungus (Heterobasidion annosum). Nine years after planting, the number of individual trees and shrub species, their height sum and average height were calculated for fenced artificial gaps (LSO) as well as non-fenced artificial gaps (LSN) and compared to natural gaps (LN) and non-disturbed neighboring stands (D). Results were calculated separately for the planted species (oak, lime and beech) but combined for all other species. The results indicate satisfactory restoration in all of the investigated plots except in Krynki, which is located in a relatively poor site. Significant differences appeared between height sum as well as average height of planted species in fenced compared to non-fenced gaps. Furthermore, in both, natural and artificial gaps, the species composition of the young generation was enriched with natural regeneration of pioneer species, mainly silver birch (Betula pendula), rowan (Sorbus aucuparia) and aspen (Populus tremula).
Źródło:
Leśne Prace Badawcze; 2019, 80, 4
1732-9442
2082-8926
Pojawia się w:
Leśne Prace Badawcze
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fungal sinusitis among patients with chronic rhinosinusitis who underwent endoscopic sinus surgery
Autorzy:
Leszczyńska, Joanna
Stryjewska-Makuch, Grażyna
Lisowska, Grażyna
Kolebacz, Bogdan
Michalak- Kolarz, Marta
Powiązania:
https://bibliotekanauki.pl/articles/1398296.pdf
Data publikacji:
2018
Wydawca:
Index Copernicus International
Tematy:
fungal sinusitis
fungus ball
allergic fungal sinusitis
Opis:
Introduction: Fungal paranasal sinusitis can be either invasive or noninvasive. Saprophytic infections, fungus balls (FB) and allergic fungal rhinosinusitis are noninvasive (AFR). Materials and methods: The present study examined 521 patients who underwent endoscopic sinus surgery between January 2016 and April 2017 due to chronic paranasal sinusitis at the Department of Laryngology and Laryngological Oncology of the Upper Silesian Medical Centre in Katowice. The aim of the study was to analyze histopathological and microbiological material collected intraoperatively and to determine incidence and type of fungal infections among patients treated for chronic sinusitis. Results: Chronic fungal sinusitis was confirmed in 10 of 521 operated patients. The study group consisted of 9 females and 1 male. Histopathological examination revealed dead mycelium in 5 patients and colonies of Aspergillus spp. in 4, while microbiological examination revealed Candida albicans infection in 1 case. Allergy to inhalant allergens of fungal spores of Alternaria and Penicillium was confirmed in a 73-year-old patient, which, based on the whole clinical presentation, enabled to diagnose chronic allergic fungal sinusitis. The most common location of mycelium was maxillary sinus, followed by sphenoid sinus. Discussion: The most common form of noninvansive fungal sinusitis is the so-called fungus ball, which was also confirmed in our report (95% of the test subjects). AFRS is more likely to occur in warm, moist climates that favor the growth of fungi.
Źródło:
Polish Journal of Otolaryngology; 2018, 72, 4; 35-41
0030-6657
2300-8423
Pojawia się w:
Polish Journal of Otolaryngology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza wpływu koncentracji ditlenku węgla, temperatury i wilgotności względnej powietrza na liczebność jednostek mogących tworzyć kolonie grzybów pleśniowych
The carbon dioxide concentration, temperature and humidity impact analysis on the quantity of units which can create fungus
Autorzy:
Koruba, D.
Piotrowski, J. Z.
Powiązania:
https://bibliotekanauki.pl/articles/362601.pdf
Data publikacji:
2017
Wydawca:
Instytut Fizyki Budowli Katarzyna i Piotr Klemm
Tematy:
mikroklimat pomieszczeń zamkniętych
grzyby pleśniowe
modelowanie
planowanie eksperymentu
microclimate of enclosed spaces
fungus
modeling
experiment planning
Opis:
W artykule przedstawiono analizę matematyczną wyników badań ilościowych grzybów pleśniowych i parametrów mikroklimatu w budynkach mieszkalnych z indywidualnym systemem nawiewnym. Przy zastosowaniu metody planowania eksperymentu otrzymano model matematyczny, który daje możliwość obliczenia ilości grzybów pleśniowych w m3 powietrza przy różnych stężeniach CO2.
The paper presents a mathematical analysis of the quantitative research results of mold fungus and microclimate parameters in the residential buildings with individual supply system. Using the experimental planning method a mathematical model was obtained, which allowed to calculate the number of molds fungus in m3 of air at different CO2 concentrations.
Źródło:
Fizyka Budowli w Teorii i Praktyce; 2017, T. 9, nr 3, 3; 9-14
1734-4891
Pojawia się w:
Fizyka Budowli w Teorii i Praktyce
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Basaltic stones with epilithic lichens as a novel substrate for an osmotolerant fungus, Aspergillus glaucus
Autorzy:
Grishkan, Isabella
Temina, Merina
Powiązania:
https://bibliotekanauki.pl/articles/952570.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
basaltic stones
epilithic lichens
low temperatures
osmotolerant fungus
sporulation
Opis:
Aspergillus glaucus is a fungus able to tolerate low water activity of the environment. Its dense growth and sporulation were found on basaltic stones with epilithic lichens after 14 years of storage at a temperature of 4–7°C and relative humidity of 14–18%. Dust and soil particles deposited on the lichen thalli and dissolved in the water condensed on the stones during the storage period, apparently served as a nutrient source for the fungus. Probably, strongly xeric water regime on basaltic stones suitable for A. glaucus did not allow mesophilic fungi to develop and prevented the xerotolerant fungus from competition with other microfungi for nutrient sources. It is also possible that specific cellular mechanism associated with the production of chaotropic compounds (such as glycerol) supported germination and development of A. glaucus at low temperatures, which were considered non-optimal for the fungus.
Źródło:
Acta Mycologica; 2017, 52, 1
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charakterystyka techniczna drewna limby syberyjskiej (Pinus sibirica Du Tour.)
Characteristic technical properties of Siberian yellow pine (Pinus sibirica Du Tour.) wood
Autorzy:
Jankowska, A.
Anders, B.
Mastyna, B.
Powiązania:
https://bibliotekanauki.pl/articles/986686.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Leśne
Tematy:
lesnictwo
drzewnictwo
limba syberyjska
Pinus sibirica
drewno limbowe
charakterystyka techniczna
wlasciwosci mechaniczne
wlasciwosci fizyczne
anatomia drewna
odpornosc na biodegradacje
siberian yellow pine
mechanical and physical properties
brown rot fungus
wood anatomy
Opis:
Siberian yellow pine (Pinus sibirica Du Tour.) has increasingly appeared in the merchant offers on the market of raw wood materials in Poland. However, the knowledge of the technical characteristics of its wood is still insufficient for it is based primarily on the data and experiences from abroad, often from the literature of the former USSR. The main aim of this study was to determine selected physical and mechanical properties of Siberian yellow pine wood such as linear and volumetric shrinkage, compressive strength along the fibers, the tensile strength along the fibers, the tensile strength across the fibers, static bending and modulus of elasticity, flexural dynamic and impact strength, hardness, resistance to splitting and cleavage amd shear strength. Futhermore, the resistance to decay caused by Coniophora puteana (Schum., Fr.) Karst., as well as the examination of the wood structure, assessing the dimensions and arrangement of the structural elements in particular were conducted. The results show that Siberian yellow pine wood has a number of similarities to Scots pine wood in terms of the structure. The wood is very light, with a density of 391 kg/m3 and very soft (Janka hardness on transverse cross section 23 MPa). The mechanical properties of Siberian yellow pine wood are closely related to its density and much lower when compared with Scots pine. Shear strength equalled to 67 MPa, static bending strength – 65 MPa and compression strength along the fibers – 49 MPa. The durability to brown rot fungus of Siberian pine wood is comparable to Scots pine (3rd class according to PN−EN 350−2:2000).
Źródło:
Sylwan; 2017, 161, 09; 756-762
0039-7660
Pojawia się w:
Sylwan
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New localities of Sarcodontia crocea (Polyporales, Basidiomycota) in Poland
Autorzy:
Szczepkowski, Andrzej
Gierczyk, Błażej
Borowski, Jerzy
Neubauer, Grzegorz
Powiązania:
https://bibliotekanauki.pl/articles/952592.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
apple tooth fungus
wood-decaying fungi
red list of fungi
distribution
malus
pumila ‘niedzwetzkyana’
coleoptera
beetles
mycetobionts
Opis:
Sarcodontia crocea is a fungus relatively rarely recorded in Central and Northern Europe, where as a parasite it grows mainly on old apple trees. The most recent data on the occurrence of this fungus in Poland are presented in this study. Seven new localities of S. crocea are reported, found in the regions of Mazowsze, Podkarpacie, Ziemia Łódzka, and Żuławy Wiślane in the years 2013–2016. The S. crocea basidiomes were recorded on 12 apple trees. The fungus occurrence on Malus pumila ‘Niedzwetzkyana’ was documented for the first time. Four beetle species representing four families were found in the studied S. crocea basidiomes. Their feeding on S. crocea has not been mentioned in the literature so far.
Źródło:
Acta Mycologica; 2017, 52, 1
0001-625X
2353-074X
Pojawia się w:
Acta Mycologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Urządzenia do obróbki powierzchniowej nasion
Devices for surface treatment of seeds
Autorzy:
Weiner, W.
Powiązania:
https://bibliotekanauki.pl/articles/227845.pdf
Data publikacji:
2014
Wydawca:
Wyższa Szkoła Menedżerska w Warszawie
Tematy:
ocieranie nasion
czas kiełkowania
procent uszkodzeń
zakażenia grzybowe
rubbing off the seeds
germination time
percentage of damage
fungus infection
Opis:
W artykule dokonano przeglądu specjalistycznych urządzeń do ocierania osłonek nasiennych. Przedstawiono nowe, wysokosprawne urządzenie do tego celu oraz podstawowe wyniki badań.
The article reviews the specialized equipment to rub off the seed coats. The paper presents a new, high-efficient device for this purpose, and basic results of research.
Źródło:
Postępy Techniki Przetwórstwa Spożywczego; 2014, 1; 134-137
0867-793X
2719-3691
Pojawia się w:
Postępy Techniki Przetwórstwa Spożywczego
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 27

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