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Two cells, two views.
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Prorocentrum rhathymum cells are asymmetrical oval in valve view, with the left side of the right valve slightly longer at the apical end. Valve length 29 - 40 microns, valve width 18 - 27microns, length to width ratio 1.4 -1.6. The apical area is a small indentation, covered by many small pores. A spine (approximately 2 microns long) is present to the right of the apical area on the right valve. Cell surface smooth, with large (0.5 microns ) pores, which are arranged in rows radiating from the periphery of the valve. Very small pores (approximately 0.1 microns ) also present. Extrusomes (3 - 5 microns ) are present in the anterior part of the valve, pointing in the direction of the apical area. Nucleus 10 microns diameter, in the posterior part of the valve. Plastid yellow-brown, diffuse.
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Prorocentrum rhathymum. Collected by ATOL team at Oyster Pond near to Woods Hole, Massachusetts for the Protistology Workshop at MBL. October-November 2005. Isolation and art by Adrian Reyes-Prieto.
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Prorocentrum micans (pro-row-sent-rum my-cans) a marine dinoflagellate, atypical in shape. This genus is associated with toxin production. Differential interference contrast.
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Prorocentrum (pro-row-sen-trum), unusual dinoflagellate with two large valves, often marked within pores which can be used in the identification of species. This image is of a separated plate. Some members of this genus produce toxins. Dark ground illumination.
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Prorocentrum (pro-row-sen-trum), unusual dinoflagellate with two large valves, often marked with pores which can be used in the identification of species. Two cells, showing the golden colour of the plastids. Dark ground illumination.
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Prorocentrum (pro-row-sen-trum), unusual dinoflagellate with two large valves, which here can seen to be thick skeletal plates. Flagella are located near the apex of the cell. Differential interference microscopy.
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Prorocentrum (pro-row-sent-rum). The image shows one of the two valves of a cell. The cingulum is not visible. The plastid is yellow-brown. There is an apical spine present. The nucleus is in the posterior of the cell.
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Prorocentrum (pro-row-sent-rum). The image shows one of the two valves of a cell. The cingulum is not visible. The plastid is yellow-brown. There is an apical spine present. The nucleus is in the posterior of the cell.
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Prorocentrum (pro-row-sent-rum). The image shows one of the two valves of a cell.The nucleus is in the posterior of the cell. The plastids are yellow-brown. The cingulum is not visible.
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Prorocentrum observed in marine muds and sandy sediments in the vicinity of Broome, Western Australia in September 2003. This image was taken using differential interference contrast optics. This work was supported by the Australian Biological Resources Study.
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Prorocentrum, observed in marine muds and sandy sediments in the vicinity of Broome, Western Australia in September 2003. This image was taken by scanning electron microscopy. This work was supported by the Australian Biological Resources Study.
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Prorocentrum observed in marine muds and sandy sediments in the vicinity of Broome, Western Australia in September 2003. This image was taken using differential interference contrast optics. This work was supported by the Australian Biological Resources Study.
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Prorocentrum observed in marine muds and sandy sediments in the vicinity of Broome, Western Australia in September 2003. This image was taken using differential interference contrast optics. This work was supported by the Australian Biological Resources Study.
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Prorocentrum observed in marine muds and sandy sediments in the vicinity of Broome, Western Australia in September 2003. This image was taken using differential interference contrast optics. This work was supported by the Australian Biological Resources Study.
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Nomarski interference optics image of one shell of the dinoflagellate.
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Prorocentrum sp
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Prorocentrum sp
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Prorocentrum sp
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Prorocentrum sp
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Prorocentrum sp
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Prorocentrum sp
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Dinoflagellate from marine sands of Little Sippewisset salt marsh near Woods Hole, MA, USA. Isolated by Laura Wegener Parfrey and Rebecca Zufall.
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Individual obtained froma bacterial biofilm sample grown out from Sippiwissett Marsh, near Woods Hole Massachusetts. Photo by Bob Moore and Andrew Schurko.
