title: Impact of UV-B radiation (290-320 nm) upon estuarine bacteria.
abstract: Effects of ultraviolet radiation on the development of metabolism of estuarine bacterial populations in laboratory microecosystems were studied. When compared with bacterial populations developing under an ultraviolet-deficient condition, the heterotrophic populations from microecosystems exposed to an ultraviolet-supplemented sprectrum displayed an overall decrease in total numbers, an increase in the proportion of pigmented cells, a decrease in the number of cellulolytic microorganisms and an increase in heterotrophic respiration. Ultraviolet radiation in the 290-320 nm waveband was the apparent stressful environmental parameter.
authors.affiliation: Department of General Science, Oregon State University, 97331, Corvallis, Oregon, USA.
authors.forename: Bruce E
authors.initials: BE
authors.lastname: Thomson
authors.affiliation: Department of General Science, Oregon State University, 97331, Corvallis, Oregon, USA.
authors.forename: Henry
authors.initials: H
authors.lastname: Van Dyke
authors.affiliation: Department of General Science, Oregon State University, 97331, Corvallis, Oregon, USA.
authors.forename: Robert C
authors.initials: RC
authors.lastname: Worrest