Tetrahymena protozoa

Tetrahymena protozoa

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This image is part of the feature Protozoa Power

Credit: VOLKER STEGER/E. COLE/SCIENCE PHOTO LIBRARY

Caption: Tetrahymena protozoa. Immunofluorescent light micrograph of two Tetrahymena thermophila protozoa (single-celled animals). Nuclei are blue and cell walls and cilia (hairs) are green. T. thermophila is a ciliate, having numerous fine cilia on its cell wall. It has a large macronucleus and several small micronuclei. Protozoa such as this are being used in biotechnology research at Axiva (part of Aventis) in Frankfurt, Germany. They are being studied to see if they can be used to make useful biologically active chemicals such as enzymes, polyunsaturated fatty acids and antibiotics. Magnification unknown.

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Keywords: antibiotics, aventis, axiva, biochemistry, biotechnology, cilia, ciliate, confocal light micrograph, dye, enzymes, fluorescence microscopy, fluorescent, immunofluorescence, immunofluorescent, invertebrate, invertebrates, light micrograph, microscopy, nature, nuclei, nucleus, pair, polyunsaturated fatty acids, protist, protozoan, research organism, single-celled, tetrahymena, thermophila, two, wildlife, zoology

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