Light micrograph of filaments of Spirogyra, a green alga which forms slimy threads called water- silk" or "mermaid's tresses" in stagnant or slow moving water. The filament is made up of elongated cells which secrete a mucilaginous substance which binds adjacent filaments. Each cell contains one or more chloroplasts, arranged in spiral bands. The chloroplasts contain green chlorophyll pigments & are sites of photosynthesis within each cell. Dark field illumination. Magnification x400 at 35mm size."
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TOP10167508
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達志影像
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RM
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