Wpływ promieniowania słonecznego i zawartego w nim UVB na aktywność enzymów wewnątrz- i zewnątrzkomórkowych bakterii mikrowarstwy powierzchniowej

• Autorzy: Walczak M.

Warianty tytułu

EN

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

• Języki publikacji: PL

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 also demonstrated substantial changes in the num­bers of bacteria occurring in the SM water depending on the intensity of solar radiation.

• Wydawca: -
• Czasopismo: Acta Agraria et Silvestria. Series Agraria
• Rocznik: 2006
• Tom: 49
• Opis fizyczny: s.479-490,rys.,tab.,bibliogr.

Twórcy

autor

Walczak M.

• Zakład Mikrobiologii Środowiskowej i Biotechnologii, Uniwersytet Mikołaja Kopernika, ul.Gagarina 9, 87-100 Toruń

Bibliografia

• Boavida M.J., Wetzel R.G. 1998. Inhibition of phosphatase activity by dissolved humic substances and hydrolytic reactivation by natural ultraviolet light. Freshwater Biol. 40: 285-293.
• Cockell C.S. 2000. Ultraviolet radiation and the photobiology of earth's early oceans. Origins of Life and Evol. of the Biosph. 30: 467-499.
• Chróst R.J., Faust M.A. 1999. Consequences of solar radiation on bacterial secondary production and growth rates in subtropical coastal water (Atlantic Coral Reef off Belize, Central America). Aquatic Microbiol. Ecol. 20: 39-48.
• Dahlbäck В. 1983. Microbial accumulation of interfaces. Marine micro — organisms and interfaces. Univ. of Göteborg 3: 12-15.
• Davidson A.T. 1998. The impact of UVB radiation on marine plankton. Mutation Research 422: 119-129.
• Denward C.M.T., Edling H., Tranvik L.J. 1999. Effects of solar radiation on bacterial and fungal density on aquatic plant detritus. Freshwater Biology 41: 575-582.
• Garabetian F. 1991. 14C-glucose ptake and 14C-C02 production in surface microlayer and surface-water samples: influence of UV and visible radiation. Mar. Ecol. Prog. Ser. 77: 21-26.
• Häder D.P., Kumar H.D., Smith R.C., Worrest. R.C. 1998. Effects on aquatic ecosystems. J. Photochem. Photobiol. 46: 53-68.
• Herndl G.J., Brugger A., Hager S., Kaiser E., Obernosterer I, Reitner В., Slezak D. 1997. Role of utraviolet-B radiation on bacterioplankton and availability of dissolved organic matter. Vegetatio 128: 43-51.
• Herndl G.J., Muller-Niklas G., Frick J. 1993. Major role of ultraviolet-B in controlling bacterioplank­ton growth in the surface layer of the ocean. Nature 361: 717-719.
• Hermansson M., Dahlbäck В. 1983. Bacterial activity at the air/water interface. Microbiol. Ecol. 9: 317-328.
• Hessen D.O., Gjessing E.T., Knulst J., Fjeld E. 1997. TOC fluctuations in humic lake as related to catchment acidification, season and climate. Biogeochemistry 36: 139-151.
• Jørgensen N.O.G., Tranvik L., Edling H., Graneli W., Lidell M. 1998. Effects of sunlight on occur­rence and bacterial turnover of specific carbon and nitrogen compounds in lake water. FEMS Mi­crobiology Ecol. 25: 217-227.
• Kaiser E.,. Herndl G.J. 1997. Rapid recovery of marine bacterioplankton activity after inhibition by UV radiation in coastal waters. Appl. Environ. Microbiol. 10: 4026-4031.
• Maclntyre W.G., Smith C.L., Munday J.C., Gibson V.M., Lake J.L., Windsor J.G., Dupuy J.L., Harrison W., Obserholzer J.D. 1974. Investigation of surface films — Chesapeake Bay entrance. US Environ. Prot. Agency Ser. EPA-670/2-73-099.
• Scully N.M., Cooper W.J., Tranvik L.J. 2003. Photochemical effects on microbial activity in natural waters: the interaction of reactive oxygen spades and dissolved organic matter. FEMS, Microbiol Ecol. 46: 353-357.
• Skórczewski P., Mudryk Z. 2003. Dynamics of daily changes to the number and production of estuarine bacterioneuston and bacterioplankton. AUMC, Limnological Papers 23: 55-63.
• Williams P. M., Carlucci A.F., Henrichs S.M., Van Vleet E.S., Horrigan S.G., Reid F.M.H., Robert­son K.J. 1986. Chemical and microbiological studies of sea-surface films in the southern Gulf of California and off the west coast of Baja California. Mar. Chem. 19: 17-98.
• Zaitsev Y.P. 1971. Marine Neustonology. Israel Prog. Scientific Tranl. Jerusalem.
• Zimmermann R. 1977. Estimation of bacterial number and biomass by epifluorescence microscopy and scaninig electron microscopy, [w:] G. Rheinheimer (red.), Microbiol. Ecol. of Brackish Water Environ., Springer-Verlag, New York: 103.
• Zimmermann R., Iturriaga R., Becker-Birck J. 1978. Simultaneous determination of the total number of aquatic bacteria and the number thereof involved in respiration. Appl. Environ. Microbiol. 12: 926-935.

Uwagi

PL

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