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- Nostoc Aevumで検索しています。
- Nostoc Ævumで再検索
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The cyanobacterial genus Nostoc includes several species forming centimetre-large gelatinous colonies in nutrient-poor freshwaters
The filaments are embedded in an gelatinous matrix of polysaccharides providing biological and environmental protection.
I added distilled water to rehydrate them.
Nostoc species have filaments with normal photosynthetic cells and N2-fixing heterocysts.
They periodically form resistant akinetes for survival and short motile filaments (hormogonia) for reproduction.
The polysaccharide matrix of the colony is evident after staining with neutral red.
The matrix have shown a complex chemistry, which includes 9 monosaccharides, uronic acid, deoxy-sugars, pyruvate, acetate and peptides.
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