Variability of nitrogen fixation in some isolates of Nostoc linckia
โ Scribed by J. K. Ladha; Prof. H. D. Kumar
- Book ID
- 102393415
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 316 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0233-111X
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โฆ Synopsis
Abstract
Four clonal isolates of Nostoc linckia isolated from different localities were compared with respect to growth, nitrogen content (cellular and extracellular), and pigment composition. A considerable range of variation was observed among these isolates. This indicates the existence of genetically distinct clonal populations of the alga in natural habitats.
๐ SIMILAR VOLUMES
The combined effect of a hormone weed killer 2,4-dichlorophenoxyacetic acid (2,4-D) and an amino acid (tryptophan) has been studied on growth and heterocyst differentiation in the cyanobacterium Nostoo linckia. 2.4-D a t 100 pg/ml stimulated growth and heterocyst frequency in combined nitrogen-free