Effects of high sodium chloride concentrations on activated sludge treatment

1995 ◽  
Vol 31 (9) ◽  
2003 ◽  
Vol 34 ◽  
pp. 128-130 ◽  
Author(s):  
Ana Paula L. Delamare ◽  
Thais Dalcin ◽  
Gabriela Müller ◽  
Sergio Olavo Pinto da Costa ◽  
Sergio Echeverrigaray

1974 ◽  
Vol 1 (4) ◽  
pp. 483 ◽  
Author(s):  
A Poljakoff-Mayber ◽  
H Greenway

The experiments reported in this paper examined discrepant results, obtained in earlier investigations, concerning the effects of NaCl in the growth medium of vascular plants on the specific activity of glucose-6-phosphate dehydrogenase (EC 1.1.1.49) extracted from the plants. NaCl at 120 mM or higher concentrations increased the specific activity of the enzyme in extracts from roots of germinating peas. However, this effect of NaCl was only clearly expressed when 0.1M phosphate was the buffer used to extract the enzyme. When organic buffers were used the observed increase in enzyme activity was either much smaller or absent. Increases in specific activity of glucose-6-phosphate dehydrogenase were only found in extracts from roots that showed severely retarded growth and some brown discoloration. No increase in activity was found either when 120 mM NaCl was added to the growth medium after seedling establishment, or if seeds were germinated in 75 mM NaCl. These observations account for the discrepancies reported in the literature.


1965 ◽  
Vol 18 (3) ◽  
pp. 505 ◽  
Author(s):  
H Greenway ◽  
DA Thomas

This is a study on the regulation of chloride concentrations in H. vulgare at the early tillering stage, when grown on media of high sodium chloride concentration. 36CI was used during certain periods to determine retranslocation.


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