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Gallionella (gally-on-elle-a) one of the iron bacteria, the bacteria attach to surfaces and grow producing a mucus sheath which acquires metal salts as it ages. The bacteria live in a fine tube in the centre of the filament. Phase contrast.
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Accumulated accretions of iron bacteria found as epibionts on the leaves of the moss Hygrohypnum. Phase contrast.
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Gallionella, iron bacterium. The bacterium creates a filament which adheres to surfaces. Many filaments may form aggregates. The mucus secretions become brown, thicker and more brittle with age.
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Gallionella, iron bacterium. The bacterium creates a filament which adheres to surfaces. Many filaments may form aggregates. The mucus secretions become brown, thicker and more brittle with age. Growing cells are to the left.
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Iron impregnated capsules of Gallionella.
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This image is of a thick brittle film of iron bacteria that formed over the surface of some water taken from the margins of the lake. The bacteria produce tubes of extracellular mucoid material that absorbs metal ions and becomes brown as it ages.
