Two types of polysaccharides were separated from the extracellular polysaccharide produced by Anabaena flos-aquae A-37 by ion exchange chromatography. The neutral polysaccharide is composed of mainly glucose with minor amounts of xylose in a molar ratio of 8:1. Glucose is believed to constitute the
Nitrogen Fixation by the Blue-green Alga Anabaena flos-aquae A-37
โ Scribed by Edith B. Davis; R. G. Tischer; Lewis R. Brown
- Book ID
- 110897372
- Publisher
- John Wiley and Sons
- Year
- 1966
- Tongue
- English
- Weight
- 202 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0031-9317
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In long-term experiments, nitrogen fixation in photosynthetic organisms is usually dependent upon the presence of light (FoGG and THAN TUN, 1960; F\_au and FOGG, 1962) although certain photosynthetic nitrogen-fixers can grow and fix nitrogen in the dark using organic media (Nostoc muscorum, ALLISON,
## Abstract Experiments were conducted to study the effect of five different organic substrates viz. lactose, fructose, mannose, xylose and sodium acetate on the heterotrophic growth characteristics with emphasis on growth, pigment composition, heterocyst frequency and nitrogen fixation of __Anabae