Nitrogen-fixing bacteria, SEM

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Nitrogen-fixing bacteria, SEM

Nitrogen-fixing bacteria. Coloured scanning electron micrograph (SEM) of nitrogen-fixing soil bacteria (Rhizobium sp.) living on a root nodule of a bean plant. These bacteria (pink) have a symbiotic relationship with the plant, where both the plant and bacteria benefit from this arrangement. The bacteria are able to convert (fix) atmospheric nitrogen in the soil to ammonia, which the plant needs but is unable to make itself. In return, the plant passes carbohydrates produced during photosynthesis to the bacteria for them to use as an energy source. Magnification: x50 when printed 10 centimetres tall

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Media ID 6292847

© STEVE GSCHMEISSNER/SCIENCE PHOTO LIBRARY

Bacteria Bacterial Bacteriology Bacterium Beneficial False Colour Fixation Fixing Legume Leguminous Micro Organisms Microbe Microbes Mutual Mutualism Mutualistic Nitrogen Fixing Nodule Relationship Root Roots Symbiont Symbiosis Symbiotic False Coloured Micro Biology Microbiological Nodular

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