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Chattonella (shat-on-ella) is one of the small handful of genera making up the raphidophytes. These are stramenopiles with many small disc shaped chloroplasts that contain chlorophylls a and c, although they often seem top be quite green. This is a flagellated cell and the anterior flagellum can be seen at the anterior end of the cell. The large grey area in the anterior /centre of the cell is where the nucleus is located. Differential Interference Contrast.
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Chattonella (shat-on-ella) is one of the small handful of genera making up the raphidophytes. These are stramenopiles with many small disc shaped chloroplasts that contain chlorophylls a and c, although they often seem top be quite green. This is a palmelloid cell in which the cell is not motile, but surrounded in a mucus sheath. Phase Contrast.
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Chattonella (shat-on-ell-a) marina, a stramenopile, with golden plastids (freshwater raphidophytes often have plastids which are bright green). Anterior flagellum beats with undulating motion drawing the cell forward, a second flagellum trails behind the cell. Phase contrast microscopy.
data on this strain.
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Chattonella (shat-on-ell-a) marina, a stramenopile, with golden plastids (freshwater raphidophytes often have plastids which are bright green). Anterior flagellum beats with undulating motion drawing the cell forward, a second flagellum trails behind the cell. Differential interference microscopy.
data on this strain.
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Fibrocapsa (fie-bro-caps-a) is a raphidophyte flagellate. The raphidophytes are one of the subsets of stramenopiles with chloroplasts, and the plastids are typically discoidal and orange or yellow brown because of the predominance of chlorophylls a and c. With two flagella of similar length. This cell is more rounded than is usually evident in nature. Phase contrast.
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Gonyostomum (go-knee-os-tea-um) is a raphidophyte stramenopile. There are typically two flagella inserting subapically, one projecting forwards in swimming cells, the other trailing. With many discoidal plastids, with chlorophylls a and c, but in this genus the plastids look as green as those of chlorophytes and euglenids. Distinguish from those two groups because it does not have a cell wall as do chlorophytes, and it does not have the ridged pellicle. thickened flagella nor eyespot of the euglenids. Differential interference contrast.
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Gonyostomum (go-knee-os-tea-um) is a raphidophyte stramenopile. There are typically two flagella inserting subapically, one projecting forwards in swimming cells, the other trailing. With many discoidal plastids, with chlorophylls a and c, but in this genus the plastids look as green as those of chlorophytes and euglenids. Differential interference contrast.
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Gonyostomum (go-knee-os-tea-um) is a raphidophyte stramenopile. There are typically two flagella inserting subapically, one projecting forwards in swimming cells, the other trailing. With many discoidal plastids, with chlorophylls a and c, but in this genus the plastids look as green as those of chlorophytes and euglenids. Body plastic and with extrusible globules which are shown in this micrograph. Differential interference contrast.
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Gonyostomum (go-knee-os-tea-um) is a raphidophyte stramenopile. There are typically two flagella inserting subapically, one projecting forwards in swimming cells, the other trailing. With many discoidal plastids, with chlorophylls a and c, but in this genus the plastids look as green as those of chlorophytes and euglenids. Body plastic and with extrusible globules. Differential interference contrast.
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Gonyostomum (go-knee-os-tea-um) is a raphidophyte stramenopile. There are typically two flagella inserting subapically, one projecting forwards in swimming cells, the other trailing. With many discoidal plastids, with chlorophylls a and c, but in this genus the plastids look as green as those of chlorophytes and euglenids. Body plastic and with extrusible globules. Phase contrast.
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Gonyostomum (go-knee-ost-owe-mum) raphidophyte flagellate. Although a kind of stramenopile, most of which are golden in colour, the raphidophytes are usually bright green. The body is flexible, and cells have two flagella (neither visible in this image). Phase contrast.
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Portrait of Gonyostomum semen, a raphidomonad flagellate. Two flagella, the anterior beating rapidly, the posterior trailing (not seen in this image). Many small bright green discoid chloroplasts. Stigma absent. Contractile vacuole located anteriorly between large central nucleus and flagellar insertion. Prominent extrusomes are said to eject mucilaginous threads up to 100 microns long. From freshwater pond near Boise, Idaho. Phase contrast.
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Gonyostomum (go-knee-os-toe-um) is a raphidophyte stramenopile. There are typically two flagella inserting subapically, one projecting forwards in swimming cells, the other trailing. With many discoidal plastids, with chlorophylls a and c, but in this genus the plastids look as green as those of chlorophytes and euglenids. Common in acidic freshwater habitats such as bogs. Free swimming specimen of Gonyostomum latum in which the anterior flagellum projects forward. Measuring 40 microns. Differential interference contrast. Differential interference contrast.
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Gonyostomum (go-knee-os-toe-um) is a raphidophyte stramenopile. There are typically two flagella inserting subapically, one projecting forwards in swimming cells, the other trailing. With many discoidal plastids, with chlorophylls a and c, but in this genus the plastids look as green as those of chlorophytes and euglenids. Common in acidic freshwater habitats such as bogs. Squashed specimen of Gonyostomum latum. Wedge-shaped trichocysts are arranged around the nucleus and under the cell surface. 50 microns. Differential interference contrast.
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Heterosigma (het-err-o-sig-ma) a raphidophyte. stramenopile. There are typically two flagella inserting subapically, one projecting forwards in swimming cells, the other trailing. With many discoidal plastids, with chlorophylls a and c. This genus has been confused with Olisthodiscus. Marine raphidophytes have been associated with red tides and linked to toxicity. Differential interference contrast.
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Heterosigma (het-err-o-sig-ma) a raphidophyte. stramenopile. There are typically two flagella inserting subapically, one projecting forwards in swimming cells, the other trailing. With many discoidal plastids, with chlorophylls a and c. This genus has been confused with Olisthodiscus. Marine raphidophytes have been associated with red tides and linked to toxicity. Differential interference contrast.
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Heterosigma (het-err-owe-sig-ma) akashiwo, small to medium-sized raphidophyte, with two emergent flagella, anterior flagellum beats with an undulating pattern, posterior flagellum trails. Many small green or yellow green plastids. No eyespot. Some members of this genus produce toxins. Phase contrast microscopy.
data on this strain.
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Heterosigma (het-err-owe-sig-ma) akashiwo, small to medium-sized raphidophyte, with two emergent flagella, anterior flagellum beats with an undulating pattern, posterior flagellum trails. Many small green or yellow green plastids emphasized in this image. No eyespot. Some members of this genus produce toxins. Differential interference microscopy.
data on this strain.
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Olisthodiscus (owe-liss-tho-disc-us), a raphidiophyte - a type of stramenopile. Some raphidophytes contribute to toxic algal blooms. Olisthodiscus has multiple plastids containing chlorophylls a and c and have a yellowy colour. Sometimes found in large numbers. With two flagella inserting near the apex of the cell. Glides. Phase contrast.
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Vacuolaria (vack-you-owe-lair-ee-a) a raphidophyte algae, with green chloroplasts and two flagella, one of which projects in front of the cell and beats with an undulating pattern. Very similar to Gonyostomum - which has however obvious extrusomes. Phase contrast.
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Vacuolaria (vack-you-owe-lair-ee-a) a raphidophyte algae, with green chloroplasts and two flagella, one of which projects in front of the cell and beats with an undulating pattern. Very similar to Gonyostomum - which has however obvious extrusomes. Differential interference contrast.
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Haramonas (ha-ra-moan-ass) dimorpha, large raphidophyte, with two emergent flagella, anterior flagellum beats with an undulating pattern, posterior flagellum trails. Many small green or yellow green plastids. No eyespot. Phase contrast microscopy.
data on this strain.
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Haramonas (ha-ra-moan-ass) dimorpha, large raphidophyte, with two emergent flagella, anterior flagellum beats with an undulating pattern, posterior flagellum trails. Many small green or yellow green plastids. No eyespot. Differential interference microscopy.
data on this strain.