Impact of solar radiation, including UV, on the activity of intra- and extracellular bacterial enzymes from surface microlayer

• Autorzy: Walczak M

Warianty tytułu

PL

Wplyw promieniowania slonecznego i zawartego w nim UV na aktywnosc enzymow wewnatrz- i zewnatrzkomorkowych bakterii mikrowarstwy powierzchniowej

• Języki publikacji: EN

Abstrakty

EN

The present study examined the impact of solar radiation, including UVB, on the activity of intra- and extracellular bacterial enzymes from the surface microlayer (SM). Following results of the study, it was concluded that solar radiation has a significant impact on the activity of extracellular hydrolases in the SM water. In contrast, no clear changes in activity of these enzymes were observed in subsurface water (SW). The activity of intracellular enzymes (cellular dehydrogenases) of bacteria inhabiting the SM and SW underwent no significant changes in the presence of solar radiation. Furthermore, the study demonstrated also substantial changes in the numbers of bacteria occurring in the SM water depending on the intensity of solar radiation.

PL

W prezentowanej pracy badano wpływ promieniowania słonecznego wraz z UVB na aktywność wewnątrz- i zewnątrzkomórkowych enzymów bakterii mikrowarstwy powierzchniowej (MP). Stwierdzono, że promieniowanie słoneczne wpływa w sposób istotny na aktywność zewnątrzkomórkowych hydrolaz w wodzie MP. W wodzie podpowierzchniowej natomiast (WPP) nie obserwowano wyraźnych zmian aktywności tych enzymów. Z kolei aktywność enzymów wewnątrzkomórkowych (dehydrogenaz komórkowych) bakterii zasiedlających MP i WPP nie ulegała istotnym zmianom pod wpływem promieniowania słonecznego. W toku prowadzonych badań stwierdzono także bardzo wyraźne zmiany liczebności bakterii występujących w wodzie MP w zależności od natężenia promieniowania słonecznego.

• Wydawca: -
• Czasopismo: Polish Journal of Natural Sciences
• Rocznik: 2008
• Tom: 23
• Numer: 2
• Opis fizyczny: p.415-427,fig.,ref.

Twórcy

autor

Walczak M

• Nicolaus Copernicus University in Torun, Gagarina 9, 87-100 Torun, Poland

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