Heterotrophic growth of the nitrogen fixing blue-green algaNostoc muscorum

1974 ◽  
Vol 14 (4) ◽  
pp. 297-302 ◽  
Author(s):  
A. H. El-Refai ◽  
M. A. Nashat ◽  
H. M. Salem
Keyword(s):  
Heterotrophic Growth ◽  
Nitrogen Fixing

Effects of intercropping with soybean on bacterial and nitrogen-fixing bacterial diversity in the rhizosphere of sugarcane

2014 ◽  
Vol 38 (9) ◽  
pp. 959-969 ◽  
Author(s):  
PENG Dong-Hai ◽  
◽  
◽  
YANG Jian-Bo ◽  
LI Jian ◽  
...  
Keyword(s):  
Bacterial Diversity ◽  
Nitrogen Fixing

Competition between nitrogen-fixing cyanobacteria during phosphorus-limited growth

1995 ◽  
Vol 32 (4) ◽  
pp. 99-101 ◽  
Author(s):  
W. T. (Pim) De Nobel ◽  
N. Staats ◽  
L. R. Mur
Keyword(s):  
Light Intensity ◽  
Competitive Advantage ◽  
Future Study ◽  
Nitrogen Fixing ◽  
Limited Growth

The phosphorus-limited growth of cultures of the nitrogen-fixing cyanobacteria Aphanizomenon and Anabaena was investigated. In conditions of nutrient and light excess Anabaena has a competitive advantage. The lower the light intensity conditions at which Aphanizomenon populations dominate are indicated for future study.

The effect of heterotrophic yield on the assessment of the correction factor for anoxic growth

1996 ◽  
Vol 34 (5-6) ◽  
pp. 67-74 ◽  
Author(s):  
D. Orhon ◽  
S. Sözen ◽  
N. Artan
Keyword(s):  
Correction Factor ◽  
Domestic Sewage ◽  
Yield Coefficient ◽  
Heterotrophic Growth ◽  
Metabolic Processes ◽  
Anoxic Conditions ◽  
Industrial Wastewaters ◽  
Systems Modelling ◽  
Kinetics Of ◽  
Very High

For single-sludge denitrification systems, modelling of anoxic reactors currently uses the kinetics of aerobic heterotrophic growth together with a correction factor for anoxic conditions. This coefficient is computed on the basis of respirometric measurements with the assumption that the heterotrophic yield remains the same under aerobic and anoxic coditions. The paper provides the conceptual proof that the yield coefficient is significantly lower for the anoxic growth on the basis of the energetics of the related metabolic processes. This is used for the interpretation of the very high values for the correction factor experimentally determined for a number of industrial wastewaters. A default value for the anoxic heterotrophic yield coefficient is calculated for domestic sewage and compatible wastewaters and proposed for similar evaluations.

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