Inhibition of photosynthesis and nitrogen fixation in algae by volatile nitrogen bases

Journal Article · Sun Jan 01 04:00:00 EST 1978 · J. Environ. Qual.; (United States)

DOI:https://doi.org/10.2134/jeq1978.00472425000700020017x· OSTI ID:6962813

Mosier, A R

Pure-culture studies were conducted to determine the effect of short-chain aliphatic amines and ammonia on photosynthesis by a green alga, Chlorella ellipsoidea, and a blue-green alga, Anabaena subcylindrica, and on the nitrogenase activity by A. subcylindrica. The aliphatic amines (1 to 5 carbons) and ammonia decreased C. ellipsoidea O/sub 2/ production 50% at concentrations ranging from 1.2 X 10/sup -9/ to 23.5 X 10/sup -9/ ..mu..g free amine N/cell and 160 X 10/sup -9/ ..mu..g free ammonia N/cell, respectively. Amine (1 to 6 carbons) concentrations, ranging from 3.0 X 10/sup -9/ to 25.8 X 10/sup -8/ ..mu..g free amine N/cell, decreased A. subcylindrica O/sub 2/ production and N/sub 2/ fixation 50% (as estimated by the acetylene reduction technique). Ammonia concentrations of 12 to 2510 and 14 to 1220 times greater than any single amine concentration were needed to decrease A. subcylindrica O/sub 2/ production or acetylene reduction by 50%, respectively. The effect of the chemical on C. ellipsoidea was reversible and depended on pH and free amine concentration. 20 references, 4 figures, 2 tables.

• Research Organization: Dept. of Agriculture, Fort Collins, CO
• OSTI ID: 6962813
• Journal Information: J. Environ. Qual.; (United States), Journal Name: J. Environ. Qual.; (United States) Vol. 7:2; ISSN JEVQA
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ACETYLENE
ALGAE
ALKYNES
AMINES
AMMONIA
BIOLOGICAL EFFECTS
CHEMICAL REACTIONS
CHLORELLA
CYANOBACTERIA
ECOLOGICAL CONCENTRATION
ELEMENTS
ENZYMES
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
INHIBITION
MICROORGANISMS
NITRO-GROUP DEHYDROGENASES
NITROGEN COMPOUNDS
NITROGEN FIXATION
NITROGEN HYDRIDES
NITROGENASE
NONMETALS
ORGANIC COMPOUNDS
OXIDOREDUCTASES
OXYGEN
PH VALUE
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PLANTS
POPULATION DYNAMICS
SYNTHESIS
UNICELLULAR ALGAE