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Effects of low concentrations of bisulfite--sulfite and nitrite on microorganisms

Journal Article · · Appl. Environ. Microbiol.; (United States)
OSTI ID:6432116
; ;
A wide range of microorganisms was tested to determine their sensitivity to low concentrations of bisulfite-sulfite and nitrite, solubility products of SO/sub 2/ and NO/sub 2/, respectively. Photosynthesis by blue-green algae (cyanobacteria) was more strongly inhibited by 0.1 mM bisulfite-sulfite and 1 mM nitrite at pH 6.0 than photosynthesis by eucaryotic algae and respiration of bacteria, fungi, and protozoa. At pH 7.7, blud-green algae were still more sensitive to busulfite-sulfite and nitrite than eurcaryotic algae, but the toxicity of bisulfite-sulfite and nitrite decreased as the pH increased. Photosynthesis by Anabaena flos-aquae at pH 6.0 was inhibited 25% by a bisulfite-sulfite concentration of 10 ..mu..M and 15% by a nitrite concentration of 50 ..mu..M. Photosynthesis by the blud-green alga, Lyngbya sp., was not exceptionally sensitive to chlorate and thiosulfate. Acetylene-reducing activity of Beijerinckia indica was completely inhibited by 0.1 mM bisulfite-sulfite at pH 4.0, the suppression being decreased with increasing pH.
Research Organization:
Cornell Univ., Ithaca, NY
OSTI ID:
6432116
Journal Information:
Appl. Environ. Microbiol.; (United States), Journal Name: Appl. Environ. Microbiol.; (United States) Vol. 35:4; ISSN AEMID
Country of Publication:
United States
Language:
English

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Related Subjects

550500 -- Metabolism
560302* -- Chemicals Metabolism & Toxicology-- Microorganisms-- (-1987)
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALGAE
BIOLOGICAL EFFECTS
BIOMASS
CHEMICAL REACTIONS
ENERGY SOURCES
METABOLISM
MICROORGANISMS
NITRITES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PLANTS
RENEWABLE ENERGY SOURCES
SULFITES
SULFUR COMPOUNDS
SYNTHESIS
TOXICITY