Biological Dinitrogen Fixation (Acetylene Reduction) Exhibited by Blue-Green Algae (Cyanobacteria) in Association with Mosses Gathered on Surtsey, Iceland

1987 ◽  
Vol 19 (4) ◽  
pp. 432 ◽  
Author(s):  
Elisabet Henriksson ◽  
Lars Eric Henriksson ◽  
John O. Norrman ◽  
Per Olof Nyman
Keyword(s):  
Green Algae ◽  
Acetylene Reduction ◽  
Dinitrogen Fixation ◽  
Blue Green Algae

Acetylene reduction by nitrogen-fixing blue-green algae

1968 ◽  
Vol 62 (4) ◽  
pp. 336-348 ◽  
Author(s):  
W. D. P. Stewart ◽  
G. P. Fitzgerald ◽  
R. H. Burris
Keyword(s):  
Green Algae ◽  
Acetylene Reduction ◽  
Nitrogen Fixing ◽  
Blue Green Algae

scholarly journals Nitrogen Fixation in Canadian Precambrian Shield Lakes

1980 ◽  
Vol 37 (3) ◽  
pp. 494-505 ◽  
Author(s):  
Robert J. Flett ◽  
David W. Schindler ◽  
Robert D. Hamilton ◽  
Norman E. R. Campbell
Keyword(s):  
Nitrogen Fixation ◽  
Green Algae ◽  
Acetylene Reduction ◽  
Low Oxygen ◽  
Experimental Lakes Area ◽  
Blue Green Algae ◽  
Methane Oxidizing Bacteria ◽  
Bloom Formation ◽  
Littoral Sediments ◽  
Shield Lakes

Acetylene reduction assays in the water columns of several artificially eutrophied lakes in the Experimental Lakes Area revealed that nitrogen fixation by planktonic blue-green algae could supply a significant portion of the nitrogen income to these lakes. In situ 15N2 uptake experiments in one lake indicated that nitrogen fixation was proceeding at a slow rate in the low oxygen region of the thermocline, probably via methane oxidizing bacteria. Other 15N2 uptake experiments in the littoral sediments of an oligotrophic lake failed to detect nitrogen fixation. Generally, algal nitrogen fixation occurred in Shield lakes that were subject to total N:total P loading ratios (wt/wt) of less than approximately 10. This suggests that in these lakes phosphorus removal from loading is the best technique for eutrophication abatement and that nitrogen removal, when applied by itself, may be detrimental because it could encourage bloom formation of nitrogen fixing blue-green algae.Key words: nitrogen fixation, eutrophication, blue-green algae, acetylene reduction, nitrogen-15

Acetylene Reduction by Blue-Green Algae Isolated from Swedish Soils

Oikos ◽  
1970 ◽  
Vol 21 (2) ◽  
pp. 330 ◽  
Author(s):  
Ulf Granhall
Keyword(s):  
Green Algae ◽  
Acetylene Reduction ◽  
Blue Green Algae
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