Nitrogen fixation by the unicellular blue-green alga Aphanothece

1973 ◽  
Vol 92 (1) ◽  
pp. 59-62 ◽  
Author(s):  
P. K. Singh
Keyword(s):  
Nitrogen Fixation ◽  
Green Alga ◽  
Blue Green Alga

Photosynthesis and nitrogenase activity in the blue-green alga Gloeocapsa

1974 ◽  
Vol 20 (12) ◽  
pp. 1633-1637 ◽  
Author(s):  
J. R. Gallon ◽  
T. A. LaRue ◽  
W. G. W. Kurz
Keyword(s):  
Nitrogen Fixation ◽  
Oxygen Evolution ◽  
Green Alga ◽  
Photosynthetic Pigments ◽  
Nitrogenase Activity ◽  
Photosynthetic Oxygen Evolution ◽  
Blue Green Alga ◽  
Temporal Separation ◽  
Young Culture ◽  
Photosynthetic Oxygen

In a young culture, photosynthetic-oxygen evolution by Gloeocapsa is at a low level while nitrogenase activity is at its greatest. When the culture ages, there is a rapid increase in photosynthetic pigments and oxygen evolution, and nitrogenase activity decreases. The temporal separation of nitrogen fixation and photosynthesis may serve to protect nitrogenase from oxygen denaturation.

Sign in / Sign up

Export Citation Format

Share Document