The arginine and proline inhibition of nitrite reductase and urease activities have been studied in the cyanobacterium Anabaena cycadeae and its mutant strain lacking glutamine synthetase (GS)') activity. Arginine and proline inhibited the nitrite reductase and urease activities in the parent strain
Nitrite metabolism in the cyanobacterium Anabaena cycadeae: Regulation of nitrite uptake and nitrite reductase by ammonia
β Scribed by Surendra Singh
- Book ID
- 109317859
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 349 KB
- Volume
- 98
- Category
- Article
- ISSN
- 0378-1097
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## Abstract Nitrate uptake, nitrite efflux and their regulation have been studied in the cyanobacterium __Nostoc__ MAC. Nitrate uptake as well as nitriteβassimilationβdependent nitrite efflux systems consisted of two distinct phases comprising an initial rapid phase followed by a slower one. Wherea
Nitrate uptake and reductase activities of the cyanobacterium Anabaena cycadeae and its mutant, lacking glutamine synthetase, (the glutamine auxotroph) were measured. The levels of both these enzymes were up to 25-fold higher in the mutant than in the parent (Anabaena cycadeae). The data indicate op