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Wyszukujesz frazę "xenobiotic biodegradation" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Methylotrophic extremophilic yeast Trichosporon sp.: a soil-derived isolate with potential applications in environmental biotechnology
Autorzy:
Kaszycki, Paweł
Czechowska, Kamila
Petryszak, Przemysław
Międzobrodzki, Jacek
Pawlik, Bolesław
Kołoczek, Henryk
Powiązania:
https://bibliotekanauki.pl/articles/1041201.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
methylotrophic yeast
autochthonous microflora
Trichosporon sp.
formaldehyde
xenobiotic biodegradation
non-conventional yeast
Opis:
A yeast isolate revealing unique enzymatic activities and substrate-dependent polymorphism was obtained from autochthonous microflora of soil heavily polluted with oily slurries. By means of standard yeast identification procedures the strain was identified as Trichosporon cutaneum. Further molecular PCR product analyses of ribosomal DNA confirmed the identity of the isolate with the genus Trichosporon. As it grew on methanol as a sole carbon source, the strain appeared to be methylotrophic. Furthermore, it was also able to utilize formaldehyde. A multi-substrate growth potential was shown with several other carbon sources: glucose, glycerol, ethanol as well as petroleum derivatives and phenol. Optimum growth temperature was determined at 25°C, and strong inhibition of growth at 37°C together with the original soil habitat indicated lack of pathogenicity in warm-blooded animals and humans. The unusually high tolerance to xenobiotics such as diesel oil (>30 g/l), methanol (50 g/l), phenol (2 g/l) and formaldehyde (7.5 g/l) proved that the isolate was an extremophilic organism. With high-density cultures, formaldehyde was totally removed at initial concentrations up to 7.5 g/l within 24 h, which is the highest biodegradation capability ever reported. Partial biodegradation of methanol (13 g/l) and diesel fuel (20 g/l) was also observed. Enzymatic studies revealed atypical methylotrophic pathway reactions, lacking alcohol oxidase, as compared with the conventional methylotroph Hansenula polymorpha. However, the activities of glutathione-dependent formaldehyde dehydrogenase, formaldehyde reductase, formate dehydrogenase and unspecific aldehyde dehydrogenase(s) were present. An additional glutathione-dependent aldehyde dehydrogenase activity was also detected. Metabolic and biochemical characteristics of the isolated yeast open up new possibilities for environmental biotechnology. Some potential applications in soil bioremediation and wastewater decontamination are discussed.
Źródło:
Acta Biochimica Polonica; 2006, 53, 3; 463-473
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interactions of azobenzene and microflora in a sandy loam Spodosol
Autorzy:
Wackerow-Kouzova, N.
Powiązania:
https://bibliotekanauki.pl/articles/25736.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
biodegradation
environment pollution
interaction
soil
xenobiotic compound
microorganism
azobenzene
soil microorganism
sandy loam
Źródło:
International Agrophysics; 2006, 20, 1
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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