Filamentous blue-green algae, Nostoc

Filamentous blue-green algae, Nostoc

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Credit: SINCLAIR STAMMERS/SCIENCE PHOTO LIBRARY

Caption: Light micrograph of Nostoc, a blue-green algae and nitrogen-fixing algae which grows in the absence of combined nitrogen and converts gaseous nitrogen into a usable form. Useful in rice culture, etc. Filamentous organism forming chains of individual creatures. Aggregations of this algae form mucilaginous masses, usually seen resting on the soil. Phase contrast. Mag: X`160. (mauve)

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Keywords: alga, algae, algal, blue-green, botany, cyanobacteria, light micrograph, lm, nature, nitrogen-fixing, nitrogen-fixing organisms, nostoc sp., plant

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