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Image of the stalkless parasitic suctorian, Sphaerophrya insolita (Jankowski, 1973) infesting the large colpodid ciliate, Bursaria truncatella (Muller, 1773). The Sphaerophrya cells are ellipsoid and approximately 35 u in diameter. One suctorian can be seen adhering to the right lip of the vestibulum of the host cell. At least 7 others can be seen adhering to the pellicle where they may be mistaken for food vacuoles on cursory examination. Sphaerophrya is thought to have lost its stalk during the transition to a parasitic mode of existence. The cells have capitate tentacles by which they adhere to the pellicle of the host cell. There is a central ellipsoid granular nucleus (the micronuclei have not been characterized). There is a single peripheral contractile vacuole. These individuals were found on B. truncatella collected from a temporary rainwater pool containing decaying grass near Boise, Idaho March 2005. DIC.
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Portrait of Sphaerophrya, a spherical suctorian, which floats, free without lorica or stalk. There are evenly distributed capitate tentacles over the body surface. The tentacles retract with a typical accordion appearance (seen in this image at the 2 o clock position). There is a large centrally placed coarsely granular macronucleus and a single contractile vacuole. Some species are parasitic. Sphaerophrya preys on ciliates. From standing freshwater in Typha (cattail) marsh near Boise, Idaho. Differential interference contrast. Differential interference contrast optics.
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Ribadelago de Franco, Castille and Leon, Spain
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Mahide, Castille and Leon, Spain
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Lardero, La Rioja, Spain
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Detail view stalkless parasitic suctorians, Sphaerophrya insolita (Jankowski, 1973) infesting the large colpodid ciliate, Bursaria truncatella (Muller, 1773). The Sphaerophrya cells are ellipsoid and approximately 35 u in diameter. Two suctorians can be seen on the left side (viewer's right) of the vestibular cleft of the host cell and one on the right. There are several posterior to the cleft. Sphaerophrya is thought to have lost its stalk during the transition to a parasitic mode of existence. The cells have capitate tentacles by which they adhere to the pellicle of the host cell. There is a central ellipsoid granular nucleus (the micronuclei have not been characterized). There is a single peripheral contractile vacuole (seen well in a number of these cells). These individuals were found on B. truncatella collected from a temporary rainwater pool containing decaying grass near Boise, Idaho March 2005. DIC.
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Small disc-shaped suctorian, usually adpressed to the substrate. With radiating arms. Phase contrast image of living cell.
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Ribadelago de Franco, Castille and Leon, Spain
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Sphaerophrya insolita (Jankowski, 1973) infesting the large colpodid ciliate, Bursaria truncatella (Muller, 1773). The Sphaerophrya cells are ellipsoid and approximately 35 u in diameter. Sphaerophrya is thought to have lost its stalk during the transition to a parasitic mode of existence. The cells have capitate tentacles by which they adhere to the pellicle of the host cell (several of these are visible on the viewer's left). There is a central ellipsoid granular nucleus seen well here (the micronuclei have not been characterized). There is a single peripheral contractile vacuole (seen well in this cell). These individuals were found on B. truncatella collected from a temporary rainwater pool containing decaying grass near Boise, Idaho March 2005. DIC.
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Suctor Podophrya spec. living epibiotic on the red alga Ceramium. Collected from Bodden, the brackish waters lying between the isles of Hiddensee and Ruegen (German Baltic Sea). This image was taken using Zeiss Universal with Olympus C7070 CCD camera.
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Typical biocoenosis of Suctoria (Podophrya spec.) with Peritricha on filaments of the red alga Ceramium diaphanum . Peritricha (not only the ones with lorica) don´t act as prey for the Suctoria. Scale bar indicates 25 µm. Collected from Bodden, the brackish waters lying between the isles of Hiddensee and Ruegen (German Baltic Sea). This image was taken using Zeiss Universal with Olympus C7070 CCD camera.
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Podophrya spec. hast trapped a Trichodina and is ingesting their cytoplasm. There ist no suction as the name "Suctoria" indicates misleadingly. An active membrane transport based on a microtubular system inside the tentacles is the engine of ingestion of the prey´s cytoplasm. The ingesting tentacles are widened. Collected from Bodden, the brackish waters lying between the isles of Hiddensee and Ruegen (German Baltic Sea). This image was taken using Zeiss Universal with Olympus C7070 CCD camera.
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Portrait of ciliated swarmer or larval form of the suctorian, Podophrya fixa (MUELLER, 1786) EHRENBERG, 1833. Cilia are seen interspersed with retracted capitate tentacles. The adult form is very similar in appearance to Prodiscophrya but swarmer form of Podophrya has only one contractile vacuole while that of Prodiscophrya has two. The swarmer secretes a long rigid hollow stalk, which attaches the adult to the substrate by an adhesive disc. In the adult form tentacles remain while cilia disappear. The spheroid macronucleus is seen here. . The ciliated larval or swarmer form develops by budding. Podophrya may form a unique transversely ringed stalked resting cyst. Found in sapropelic habitats. From organically enriched bottom sediment of freshwater pond near Boise, Idaho. DIC optics.
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Portrait of the stalked resting cyst of Podophrya fixa (MUELLER,1786) EHRENBERG, 1833, a suctorian ciliate. The thick brownish cyst wall has a variable (3-9) number of raised transverse rings. There is an apical aperture. The cell body is visible through the translucent cyst wall.
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Portrait of adult form of the suctorian, Podophrya fixa (MUELLER,1786) Ehrenberg,1833. The cell body of the adult form has a spherical cell body atop a slender, hollow, rigid stalk that attaches to the substrate by an adhesive disc (seen here). There are numerous retractile capitate tentacles distributed over the entire cell surface. The knobs at the ends of the tentacles are aggregates of specialized extrusomes called haptocysts. These fix prey (usually ciliates) the contents of which are then transported to the cell body through the tentacles. No lorica. The adult form is very similar in appearance to Prodiscophrya but swarmer form of Podophrya has only one contractile vacuole while that of Prodiscophrya has two. The granular, spheroid macronucleus is central. The ciliated larval or swarmer form develops by budding. Podophrya may form a unique transversely ringed stalked resting cyst. Found in sapropelic habitats. From organically enriched bottom sediment of freshwater pond near Boise, Idaho. DIC optics.
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Ephelota gemmipara Scale bar indicates 50 µm. Collected from Bodden, the brackish waters lying between the isles of Hiddensee and Ruegen (German Baltic Sea). The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus OM-D M5 MKII.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Hiddensee Bodden (Germany) Latitude: 54.582633 Longitude: 13.115051 Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 50 µm. Probe aus dem Hiddenseer Bodden, der Brackwasserfläche zwischen den Inseln Hiddensee und Rügen. Mikrotechnik: Zeiss Universal, Kamera: Olympus OM-D M5 MKII. 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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Ephelota gemmipara Scale bar indicates 50 µm. Collected from Bodden, the brackish waters lying between the isles of Hiddensee and Ruegen (German Baltic Sea). The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus OM-D M5 MKII.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Hiddensee Bodden (Germany) Latitude: 54.582633 Longitude: 13.115051 Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 50 µm. Probe aus dem Hiddenseer Bodden, der Brackwasserfläche zwischen den Inseln Hiddensee und Rügen. Mikrotechnik: Zeiss Universal, Kamera: Olympus OM-D M5 MKII. 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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Ephelota gemmipara Scale bar indicates 50 µm. Collected from Bodden, the brackish waters lying between the isles of Hiddensee and Ruegen (German Baltic Sea). The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus OM-D M5 MKII.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Hiddensee Bodden (Germany) Latitude: 54.582633 Longitude: 13.115051 Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 50 µm. Probe aus dem Hiddenseer Bodden, der Brackwasserfläche zwischen den Inseln Hiddensee und Rügen. Mikrotechnik: Zeiss Universal, Kamera: Olympus OM-D M5 MKII. 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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Ephelota gemmipara Scale bar indicates 50 µm. Collected from Bodden, the brackish waters lying between the isles of Hiddensee and Ruegen (German Baltic Sea). The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus OM-D M5 MKII.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: Hiddensee Bodden (Germany) Latitude: 54.582633 Longitude: 13.115051 Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 50 µm. Probe aus dem Hiddenseer Bodden, der Brackwasserfläche zwischen den Inseln Hiddensee und Rügen. Mikrotechnik: Zeiss Universal, Kamera: Olympus OM-D M5 MKII. Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.