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Epipyxis tubulosa.The lorica of the genus Epipyxis is not smooth but structured. In Epipyxis tubulosa this structure, however, is so fine that it appears unimposing in light microscopy. Scale bar indicates 10 m. Sample from Lake Constance in the vicinity of Bodman. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.For high-resolution images please ask postmaster@protisten.de.
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Portrait of colonial form of chrysophyte flagellate, Epipyxis. Cells attach to the base of vase-like loricae by protoplasmic threads containing microtubules. Loricae are constructed of overlapping scales. The scales, visible only by electron-microscopy or staining are composed of interwoven microfibrils. Yellow chloroplast with small stigma (not well-seen in this image). Epipyxis is mixotrophic. Phagotrophy involves bacterial capture by the longer of the two flagella and formation of a feeding "basket" by microtubular action at the anterior of the cell. Often epiphytic on filamentous algae as seen here but sometimes free-swimming. From freshwater pond near Boise, Idaho. Phase contrast.
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Epipyxis, a chrysophyte flagellate which may be colonial or solitary as seen in this image. These cells are epiphytic on filamentous algae. There is a yellow chloroplast and small stigma. The stigma is not well seen in this image. Two unequal flagella are present. Cells attach to the base of vase-like loricae by protoplasmic threads containing microtubules. Loricae are constructed of overlapping scales. The scales, visible only by electron-microscopy or staining are composed of interwoven microfibrils. From freshwater pond near Boise, Idaho. Phase contrast.
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Epipyxis (epp-ee-pick-sis) pulchra is a loricate chrysophyte (stramenochrome) alga, in which the organic lorica is formed from scales that are glued together, providing a shingle-like appearance. With two flagella, one longer one drawing water and bacteria towards the cell. The anterior-most refractile regions on all three cells represent the feeding basket of these active phagotrophic cells, and bacteria are ingested with this basket. Cells have a red eyespot (not visible) that is located approximately halfway down the cell when it is actively feeding or near the anterior when the cell is not feeding. Phase contrast microscopy.
data on this strain.
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Epipyxis (epp-ee-pick-sis) ppulchra is a loricate chrysophyte (stramenochrome) alga alga, in which the organic lorica is formed from scales that are glued together, providing a shingle-like appearance. With two flagella, one longer one drawing water and bacteria towards the cell. The anterior-most refractile regions on all three cells represent the feeding basket of these active phagotrophic cells, and bacteria are ingested with this basket. Cells have a red eyespot (not visible) that is located approximately halfway down the cell when it is actively feeding or near the anterior when the cell is not feeding. Differential interference microscopy.
data on this strain.
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Epipyxis tubulosa The lorica of the genus Epipyxis is not smooth but structured. In Epipyxis tubulosa this structure, however, is so fine that it appears unimposing in light microscopy. Scale bar indicates 10 µm. Sample from Lake Constance in the vicinity of Bodman. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Lake Constance vicinity of Bodman (Germany) Latitude: 47.796494 Longitude: 9.047656 Die Gehäuse der Gattung Epipyxis zeichnen sich an sich durch sichtbare Strukturierung aus. Bei Epipyxis tubulosa ist diese Strukturierung allerdings so fein, dass sie lichtmikroskopisch unscheinbar ist. Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 10 µm. Probe aus dem Bodensee bei Bodman. Mikrotechnik: Zeiss Universal, Kamera: Olympus C7070. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.
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Epipyxis utriculus The specimen was gathered in ponds near Hausen (Hessisch Lichtenau , Germany). Copyright Winfried Hölz, Hausen, Germany.Images were taken using Zeiss Axioskop with DSLR.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Ponds near Hausen (Hessisch Lichtenau , Germany) Latitude: 51.21453 Longitude: 9.868894 Probe aus Gewässern nahe Hausen (Hessisch Lichtenau).Copyright Winfried Hölz, Hausen. Mikrotechnik: Zeiss Axioskop, Kamera: DSLR. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.