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Coscinodiscus wailesii, living cell in valve view
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Coscinodiscus wailesii. oblique SEM . Visible are: girdle bands, two regular rows of rimoportulae (2-3 areolae from margin & at valve face/mantle junction), one irregular row of rimoportulae near center, irregular hyaline central area. scale bar is 10µm.
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Coscinodiscus wailesii,schematic girdle view of one theca (modified from Gran & Angst, Fig. 26)
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Coscinodiscus wailesii, cleaned valve, light microscope
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Fig 2: Coscinodiscus wailesii Light micrograph of valve face of a live cell
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Fig 4: Coscinodiscus wailesii Light micrograph central hyaline area of a live cell
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Fig 5: Scanned electron micrograph image of C.wailesii in the valve view.
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This species has a very fine aerolation. It can be distinguished from other species by the central hyaline area and the hyaline lines radiating from it between the areolae. It also has a distinctive shape in girdle view. The valve is very high (often higher than wide) and the valve margin appears to undulate slightly.
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Fig 3: Coscinodiscus wailesii Light micrograph of a Lugol's preserved cell in girdle view
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SEM of girdle view. The ligulae which fit in the open girdle bands are weakly visible. Scale bar indicates 100 µm. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking technique. Use of SEM equipment courtesy of Lab Dr. Karl-Heinz Schäffner, Solingen, Germany.
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Coscinodiscus wailesii.Valvar view. Insets showing marginal ring of labiate processes (upper right) and the hyaline central area (lower left). Scale bar indicates 100 m. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking and stitching technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.For more look at
www.protisten.de/english/gallery_main/gallery_main.htmlFor high-resolution images please ask postmaster@protisten.de..
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Closeup of the lateral side of the valve. Scale bar indicates 25 µm. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking technique. Use of SEM equipment courtesy of Lab Dr. Karl-Heinz Schäffner, Solingen, Germany.
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Coscinodiscus wailesii.Closeup of the lateral side of the valve. Scale bar indicates 25 m. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking technique. Use of SEM equipment courtesy of Lab Dr. Karl-Heinz Schffner, Solingen, Germany. For more look at
www.protisten.de/english/gallery_main/gallery_main.htmlFor high-resolution images please ask postmaster@protisten.de.
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Valvar View. Scale bar indicates 100 µm. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking technique. Use of SEM equipment courtesy of Lab Dr. Karl-Heinz Schäffner, Solingen, Germany.
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Coscinodiscus wailesii.SEM of girdle view. The ligulae which fit in the open girdle bands are weakly visible. Scale bar indicates 100 m. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking technique. Use of SEM equipment courtesy of Lab Dr. Karl-Heinz Schffner, Solingen, Germany. For more look at
www.protisten.de/english/gallery_main/gallery_main.htmlFor high-resolution images please ask postmaster@protisten.de.
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Closeup showing hyaline central area. Scale bar indicates 10 µm. Sample from North Sea near Heligoland (spring diatom bloom). Use of SEM equipment courtesy of Lab Dr. Karl-Heinz Schäffner, Solingen, Germany.
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Closeup showing fine structure of valvar pores. Scale bar indicates 5 µm. Sample from North Sea near Heligoland (spring diatom bloom). Use of SEM equipment courtesy of Lab Dr. Karl-Heinz Schäffner, Solingen, Germany.
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Valvar view. Insets showing marginal ring of labiate processes (upper right) and the hyaline central area (lower left). Scale bar indicates 100 µm. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking and stitching technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.
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Closeup of the hyaline central area. Scale bar indicates 25 µm. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking and stitching technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.
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Closeup of the marginal ring of labiate processes. Scale bar indicates 25 µm. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking and stitching technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.
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DIC closeup of valve of a living specimen. Scale bar indicates 50 µm. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.
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Valvar view, dark field. Scale bar indicates 100 µm. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking and stitching technique. Images were taken using Zeiss Universal with Olympus C7070 CCD camera.
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Coscinodiscus wailesii Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Leica dissecting microscope with MFT camera Olympus OM-D E-M5 II.Image under Creative Commons License V 3.0 (CC BY-NC-SA). Place name: North Sea around Heligoland Latitude: 54.186311 Longitude: 7.895034 Probe aus der Nordsee vor Helgoland in der Zeit der Frühjahrsblüte. Mikrotechnik: Leica Stereomikroskop, Kamera: Olympus OM-D E-M5 II.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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Coscinodiscus wailesii SEM of girdle view. The ligulae which fit in the open girdle bands are weakly visible. Scale bar indicates 100 µm. Sample from North Sea near Heligoland (spring diatom bloom). The image was built up using several photomicrographic frames with manual stacking technique. Use of SEM equipment courtesy of Lab Dr. Karl-Heinz Schäffner, Solingen, Germany. Place name: North Sea around Heligoland Latitude: 54.186311 Longitude: 7.895034 REM-Aufnahme des Gürtelbandes. Man erkennt schwach die sogenannten Ligulae, die in den Lücken der offenen Gürtelbänder liegen. Der Messbalken markiert eine Länge von 100 µm. Probe aus der Nordsee vor Helgoland in der Zeit der Frühjahrsblüte. Die Aufnahme entstand im Labor Dr. Karl-Heinz Schäffner, Solingen.Creative Commons License V 3.0 (CC BY-NC-SA). For permission to use of (high-resolution) images please contact postmaster@protisten.de.