Spirulina blue-green alga

Spirulina blue-green alga

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Caption: Spirulina algae. Light micrograph of a mass of strands of Spirulina platensis, a type of blue green alga or cyanobacterium. Each strand consists of individual cells joined together. Blue-green algae are primitive, prokaryotic organisms which do not contain a membrane-bound nucleus. Their nuclear material is dispersed throughout the cell in a similar way to that of bacteria. The algae make their food by photosynthesis in primitive, thread-like structures called lamellae. Some Spirulina species are eaten as a protein-rich health food. Phase contrast image. Magnification: x25 at 35mm size.

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Keywords: alga, algae, algal, blue-green, blue-green algae, botany, cyanobacteria, filamentous, filamentous algae, health food, light micrograph, nature, plant, spirulina algae, spirulina platensis

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