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Effects of bisulfite on microorganisms

Journal Article · · Am. Soc. Microbiol., Abstr. Annu. Meet.; (United States)
OSTI ID:6525657
;
The effects of bisulfite, a product of SO/sub 2/ and water, have been determined on a range of microorganisms. The sensitivity of various algae was evaluated by measuring /sup 14/CO/sub 2/ incorporation following a 40-min preincubation of the cultures in the presence of bisulfite at pH 6.0. Effects on bacteria, protozoa, and fungi were evaluated manometrically following a 30-min preincubation of the cells in the presence of bisulfite at pH 6.0. The acetylene reduction assay was used to assess the influence of bisulfite on nitrogen fixation. The Cyanophyta usually exhibited a 70 to 95% inhibition of /sup 14/CO/sub 2/ fixation activity in the presence of 0.1 mM bisulfite, while the Chlorophyta characteristically exhibited only a 0 to 30% inhibition of activity at this concentration. The bacterial cultures tested generally showed little inhibition of respiration in the presence of 0.1mM bisulfite. The protozoa and fungi being resistant to 0.1mM bisulfite, with some fungi being resistant to 1.0mM. Acetylene reduction by a blue-green alga was inhibited by 0.1mM bisulfite. The Cyanophyta, as a group, thus appear to be especially sensitive to bisulfite.
Research Organization:
Cornell Univ., Ithaca, NY
OSTI ID:
6525657
Journal Information:
Am. Soc. Microbiol., Abstr. Annu. Meet.; (United States), Journal Name: Am. Soc. Microbiol., Abstr. Annu. Meet.; (United States) Vol. 76; ISSN ASMAC
Country of Publication:
United States
Language:
English

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Related Subjects

560302* -- Chemicals Metabolism & Toxicology-- Microorganisms-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACID SULFITES
ALGAE
ANIMALS
BACTERIA
BIOASSAY
BIOLOGICAL EFFECTS
CARBON 14 COMPOUNDS
CARBON DIOXIDE FIXATION
CHALCOGENIDES
FUNGI
INHIBITION
INVERTEBRATES
ISOTOPE APPLICATIONS
LABELLED COMPOUNDS
METABOLISM
MICROORGANISMS
NITROGEN FIXATION
OXIDES
OXYGEN COMPOUNDS
PH VALUE
PLANTS
PROTOZOA
RESPIRATION
SENSITIVITY
SULFITES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TRACER TECHNIQUES