Wyniki wyszukiwania - AGRO

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Evolutionary conservation of the transcribed spacer sequences of the rDNA repeat unit in three species of the genus Aspergillus

100%

Borsuk P., Gniadkowski M., Kucharski R., Bisko M., Kanabus M., Stepien P. P., Bartnik E.

Acta Biochimica Polonica

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1994

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tom 41

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nr 1

We have cloned and sequenced the two intervening transcribed spacers in the rDNA repeat unit of three Aspergillus species — A. nidulans, A. aw amort and A. wentii. The A. wentii and A. awamori spacers are almost identical and share a high degree of homology with the A. nidulans spacers. All spacers have a high G-C content (66%-76%) and the potential of forming complex secondary structures, which may indicate that they play a role in the maturation of pre-rRNA molecules.

2

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Grzybica narządowa jako przyczyna śmierci orłów przednich i bielików

75%

Houszka M., Szymanski P.

Życie Weterynaryjne

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2013

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tom 88

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nr 09

3

Fungi on wheat bran and their toxinogenity

75%

Tancinova D., Labuda R.

Annals of Agricultural and Environmental Medicine

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2009

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tom 16

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nr 2

325-331

4

Effect of fungal metabolites and amendments on mycelial growth of Rhizoctonia solani

75%

Vibha

Journal of Plant Protection Research

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2010

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tom 50

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nr 1

93-97

A shift towards organic farming suggests amalgamation of organic resources against soil borne plant pathogens. The influence of metabolites of most ubiquitous Aspergillus spp., organic amendment extracts and their combined effect with Trichoderma virens were evaluated in vitro against Rhizoctonia solani. The minimum (36.1 mm) growth was attained by R. solani in co-culture with A. niger. The maximum (42.3 mm) inhibition of mycelial growth of the test organism was observed with culture filtrate of A. ochraceous followed by A. niger, A. fumigatus, A. flavus and A. terreus. Among organic amendment extractants, castor cake exhibited an additive effect on the growth of T. virens, however, the maximum (41.8 mm) suppressive effect on R. solani was observed with vermicompost. With the advance in time, the effect of organic amendment extracts increased markedly. Inhibition potential of culture filtrate mixturte of A. niger + T. virens and A. ochraceous + T. virens against R. solani was significantly higher in comparison to the other combinations.

5

The susceptibility of Aspergillus and Penicillium to recent antimycotics

75%

Macura A. B., Pawlik B., Szczepka I.

Wiadomości Parazytologiczne

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1998

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tom 44

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nr 3

6

Secondary metabolites as Co-markers in the taxonomy of Aspergilli

75%

Abu-Seidah A. A.

Acta Microbiologica Polonica

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2003

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tom 52

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nr 1

7

Fungi colonizing toxic acid soils in the dumping ground of the Belchatow Brown Coal Mine

75%

Kowalik M.

Acta Mycologica

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1998

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tom 33

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nr 1

8

Grzyby strzępkowe, mikotoksyny a zdrowie człowieka

63%

Mackiw E.

Żywienie Człowieka i Metabolizm

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2010

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tom 37

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nr 4

Do niebezpiecznych substancji pochodzenia biologicznego spotykanych w żywności należą mikotoksyny. Są one produktami wtórnego metabolizmu grzybów strzępkowych. Charakteryzują się wysoką szkodliwością dla ludzi, zwierząt, jak również roślin wyższych. Mogą one być przyczyną ostrych zatruć, wykazują także silne właściwości mutagenne, kancerogenne, teratogenne i estrogenne. Spośród znanych obecnie grzybów strzępkowych, większość szczepów toksynotwórczych należy do trzech rodzajów: Aspergillus, Pénicillium i Fusarium. Mikotoksyny wyizolowano ze środków spożywczych głównie pochodzenia roślinnego, tj. zbóż i ich przetworów, jak również pochodzenia zwierzęcego, w tym mięsa i mleka.

9

Ocena in vitro grzybow z rodzaju Aspergillus i Penicillium na nowe leki przeciwgrzybicze

63%

Macura A. B., Pawlik B., Szczepko I.

Wiadomości Parazytologiczne

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2000

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tom 46

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nr 1

157-162

Fifty four mould strains (32 Aspergillus and 22 Penicillium) isolated from clinical materials were tested using dilution method. Two test media were used: Yeast Nitrogen Base (YNB) and Czapek Dox (CD). The following drugs were tested: amorolfine, cyclopirox, itraconazole, and terbinafine. In the dilution method, the drugs were tested at four contrentrations: 0.1 mg/l, 1 mg/l, 10 mg/l, and 100 mg/l. No matter which medium and/or drug was used, terbinafine turned out to be most effective. The drug at a conceatration of 1 mg/l inhibited 88.9% of the strains in the CD medium. The MIC values in the YNB medium varied from 0,1 mg/l through 100 mg/1, however, 50% of the strains were inhibited at 1 mg/l or less. Itraconazole revealed a fairly good in vitro antifungal action, particularly in the CD medium: 77.8% of the strains were inhibited at 10 mg/l or less. Aspergillus fumigatus and Aspergillus flavus were most susceptible to itraconazole. The MIC values of cyclopirox amounted to 100 mg/l for all of the strains in the CD medium but not in the YNB where they varied from 1 mg/l to 100 mg/l. Amorolfine was the least effective drug. Most of the strains were inhibited at a concentration of at least 100 mg/l. The findings give evidence that the susceptibility of Aspergillus and Penicillium to the particular drugs is different, and that the results are influenced by the test medium.

10

Lotne metabolity wybranych grzybow z rodzaju Aspergillus i Penicillium jako wskazniki ich obecnosci i biosyntezy toksyn

63%

Jelen H.

Roczniki Akademii Rolniczej w Poznaniu. Rozprawy Naukowe

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2001

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nr 322

1-113

11

Occurrence of ochratoxin A in beer and wine samples

63%

Polak M., Gut D., Zaleska A., Kubiak M. S.

Polish Journal of Food and Nutrition Sciences

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2011

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tom 61

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nr Suppl.1

12

Fungal contamination of air in the department of haematology

63%

Nawrot U., Usnarska-Zubkiewicz L., Pajaczkowska M., Mokracka-Latajka G., Kuliczkowski K., Nowicka J.

Polish Journal of Environmental Studies

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2010

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tom 19

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nr 5

The aim of this study was to test the air in a single hospital department for fungal contamination. The department included three fully protected rooms with laminar air flow, comprising a bone marrow transplant unit (BMTU) and eleven naturally ventilated patient rooms of a haematology unit (HAEMU). Air samples were taken with an IDEAL air sampler (bioMerieux) on Sabouraud dextrose agar plates. The concentration of fungi in the air of the HEPA-filtered rooms of the BMTU ranged from 0-75 CFU/m3. Penicillium and Cladosporium were dominant among the fungal biota in the whole department. Of aspergilli, A. fumigatus was prevalent and seasonal increases in the frequencies of A. clavatus and A. niger isolation were observed. The detection of potentially pathogenic species of Aspergillus and Mucor in the BMTU and an increased concentration of Aspergillus in the HAEMU (up to 200 CFU/m3) instigated the introduction of additional preventive measure besides routine disinfection, namely an exchange of the HEPA filters in the BMTU and the installation of equipment based on multifunctional ion technology in the HAEMU. In a subsequent examination, a diminished number of fungi in the air was observed. During the study, 2 cases of proven and 3 of probable aspergillosis (according to EORT criteria) were noted. There was no link observed between the higher concentration of Aspergillus detected in the hospital air and the development of the infection. The authors conclude that hospital air examination can be helpful in indicating problems with hospital air facilities, enabling the introduction of procedures improving air quality and subsequently diminishing the risk of nosocomial mycoses.

13

Biotransformation and odour characteristic of the lactonic beta-ionone derivatives

63%

Grabarczyk M., Winska K., Maczka W.

Electronic Journal of Polish Agricultural Universities. Series: Biotechnology

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2019

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tom 22

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nr 4

14

Concept for development of expert computer program for identification of filamentous fungi

63%

Gutarowska B., Izdebski M.

Polish Journal of Microbiology

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2012

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tom 61

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nr 3

An expert program has been developed for users working in industrial laboratories who are not experts in the identification of filamentous fungi. !e database of morphological growth features currently contains 12 species from the genera Aspergillus and Penicillium grown under standard conditions. !e identification algorithm implemented in the database takes into account the reliability of users, which can vary over a wide range depending on the identification feature. !e reliability of users was estimated on the basis of a questionnaire survey conducted among 27 non-experts, as the likelihood of a response consistent with the assessment of experts. The program works through comparative analysis of features of the fungus being identified with the expert-developed database and selection of the most likely species among the species represented by reference strains. !e expert program reduces subjective mistakes and may be extended to include further fungal species and genera; it can also be supplemented with chemotaxonomic, genetic and other data.

15

Badania aktywnosci i sekrekcji Beta-glukozydazy w hodowlach Aspergillus niger 33/20/K

63%

Trzcinska M., Paterczyk J., Sieliwanowicz B.

Prace Instytutów i Laboratoriów Badawczych Przemysłu Spożywczego

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1993

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tom 48

5-15

16

Grzyby plesniowe w uprawach boczniaka

63%

Ziombra M.

Biuletyn Producenta Pieczarek - Pieczarki

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2001

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tom 29

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nr 1

45-48

17

The presence of fungi in the interiors of libraries and the risk of exposure to mold of the Aspergillus genus - a preliminary study

63%

Gniadek A., Krzysciak P., Wrobel M.

Annals of Parasitology

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2016

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tom 62

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nr Suppl.

18

Mikotoksyny - czynniki mutagenne i rakotworcze

63%

Jaroniewski W.

Wiadomości Zielarskie

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1996

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tom 38

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nr 10

17

19

Moulds lytic enzymes in the production of Yarrowia high-protein feed additives

63%

Piegza M., Jurkiewicz M., Kancelista A., Laba W., Witkowska D.

Electronic Journal of Polish Agricultural Universities. Series: Biotechnology

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2015

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tom 18

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nr 4

20

Wytwarzanie fitaz, celulaz i ksylanaz przez wybrane szczepy grzybow strzepkowych

63%

Witkowska D., Rywinska A., Piegza M.

Żywność Nauka Technologia Jakość

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2007

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tom 14

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nr 1

150-160

W pracy przebadano dwanaście szczepów grzybów strzępkowych z rodzaju Aspergillus, Trichoderma i Rhizopus pod względem zdolności do biosyntezy fitaz oraz enzymów towarzyszących tj. celulaz i ksylanaz, w hodowlach wstrząsanych oraz SSF, w obecności zmielonej fasoli, skrobi kukurydzianej, rzepaku oraz mąki sojowej jako źródeł węgla. Jedenaście szczepów było zdolnych do biosyntezy fitaz, wykazano jednak znaczne zróżnicowanie poziomu aktywności w zależności od źródła węgla w pożywce. Najefektywniejszym źródłem węgla do syntezy tych enzymów była zmielona fasola oraz skrobia kukurydziana. Największymi uzdolnieniami do biosyntezy fitaz charakteryzowały się szczepy Aspergillus niger 551 (34,56 nKat g⁻¹) oraz Aspergillus cervinus (31,85 nKat g⁻¹). W hodowlach prowadzonych w systemie SSF na zmielonej fasoli z udziałem obu szczepów uzyskano zwiększenie aktywności właściwej fitaz w porównaniu z hodowlą wgłębną. Enzymy towarzyszące, tj. celulazy i ksylanazy, w tych warunkach hodowlanych wytwarzane były na niskim poziomie.

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