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With one long flagellum projecting from each groove on opposing sides of the cell. Encountered in organically very enriched sediments. Phase contrast optics.
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Pyrsonympha (pierce-o-nymph-a) is an oxymonad flagellate, a group found as endobionts within termites etc. This one came from Reticulotermes. Pyrsonympha may or may not have an anterior holdfast as can be seen here, four - eight flagella, typically adhering to the cell surface. With an axostyle which may or may not emerge from the end of the cell (not here). Not all cells have the associated epibiotic bacteria. Differential interference contrast.
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Large hypermastigid (450-500 µm) symbiont in Mastotermes darwiniensis. Body broadly triangular in shape with an anterior dome-shaped rostrum completely flagellated. Cell body covered with longitudinal rows of flagella except the amoeboid posterior part which is separated by a girdle and used for wood ingestion. The nucleus is situated in the anterior region; the axostylar fibres surround the nucleus and some group backwards to form an axial axostylar trunk.
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With two long flagella projecting from the grooves on opposing sides of the cell. There are three other flagella in each groove, and one of these (left side) has also emerged from the groove. Phase contrast micrograph.
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Pyrsonympha (pierce-o-nymph-a) is an oxymonad flagellate, a group found as endobionts within termites etc. This one came from Reticulotermes. Pyrsonympha may or may not have an anterior holdfast, four - eight flagella, typically adhering to the cell surface, but as evident here, not always adhering. With an axostyle, seen here as a dark curving internal structure, which may or may not emerge from the end of the cell (not here). They may or may not have associated epibiotic bacteria, not here. Phase contrast.
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Large hypermastigid (450-500 µm) symbiont in Mastotermes darwiniensis. Body broadly triangular in shape with an anterior dome-shaped rostrum completely flagellated. Cell body covered with longitudinal rows of flagella except the amoeboid posterior part which is separated by a girdle and used for wood ingestion. The nucleus is situated in the anterior region; the axostylar fibres surround the nucleus and some group backwards to form an axial axostylar trunk.
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Trepomonas agilis: A diplomonad flagellate with a single prominant lateral flagella on each side. Three pairs of additional flagella lodged in the lateral grooves is also present, not visible in this image. This image was taken by Krishnakumar B. from one of the anaerobic bioreactors for organic rich wastewater treatment in Regional Research Laboratory-Trivandrum (CSIR-India).
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Pyrsonympha (pierce-o-nymph-a) is an oxymonad flagellate, a group found as endobionts within termites etc. This one came from Reticulotermes. Pyrsonympha may or may not have an anterior holdfast, four - eight flagella, typically adhering to the cell surface. With an axostyle which may or may not emerge from the end of the cell (not here). They may or may not have associated epibiotic bacteria, not here. Differential interference contrast.
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Large hypermastigid (450-500 µm) symbiont in Mastotermes darwiniensis. Body broadly triangular in shape with an anterior dome-shaped rostrum completely flagellated. Cell body covered with longitudinal rows of flagella except the amoeboid posterior part which is separated by a girdle and used for wood ingestion. The nucleus is situated in the anterior region; the axostylar fibres surround the nucleus and some group backwards to form an axial axostylar trunk. Deltotrichonympha operculata from Mastotermes darwiniensis girdle revealed by immunofluorescence.
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Trepomonas (tree-poe-moan-ass) agilis Dujardin, 1841. Cell is ovoid, but S-shaped in cross section and is about 11 microns long. Two nuclei are located anteriorly. Two groups of flagella are inserted laterally at the end of each groove: two long flagella and six short flagella. The length of the long flagella was not measured, but the short falgella are less than half the cell length and lie in the grooves. The cell moves by swimming. Contractile vacuoles are seen. Rarely observed.
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Pyrsonympha (pierce-o-nymph-a) is an oxymonad flagellate, a group found as endobionts within termites etc. This one came from Reticulotermes. Pyrsonympha may or may not have an anterior holdfast, four - eight flagella, typically adhering to the cell surface. With an axostyle which may or may not emerge from the end of the cell (not here). They may or may not have associated epibiotic bacteria, not here. Differential interference contrast.
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Large hypermastigid (450-500 µm) symbiont in Mastotermes darwiniensis. Body broadly triangular in shape with an anterior dome-shaped rostrum completely flagellated. Cell body covered with longitudinal rows of flagella except the amoeboid posterior part which is separated by a girdle and used for wood ingestion. The nucleus is situated in the anterior region; the axostylar fibres surround the nucleus and some group backwards to form an axial axostylar trunk. Deltotrichonympha operculata from Mastotermes darwiniensis axostyles revealed by immunofluorescence.
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Trepomonas (tree-poe-moan-ass) agilis Dujardin, 1841. Cells are 8-12microns long, S-shaped in cross-section, ovoid, egg-shaped or elongate. Two opposed grooves run spirally, along the posterior two thirds to three quarters of the cell. Four flagella insert at the head of each groove. Of these, one flagellum, the same length as the cell or slightly shorter, is directed laterally. The other flagella are less than half the length of the cell, are directed posteriorly and lie within the groove. Two elongate nuclei are located anteriorly. The cytoplasm has a granular appearance, and exhibits cyclosis. Food vacuoles and empty vacuoles are scattered within the cell. Cells rotate smoothly as they swim.
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Pyrsonympha (pierce-o-nymph-a) is an oxymonad flagellate, a group found as endobionts within termites etc. This one came from Reticulotermes. Pyrsonympha may or may not have an anterior holdfast, four - eight flagella, typically adhering to the cell surface. With an axostyle which may or may not emerge from the end of the cell . They may or may not have associated epibiotic bacteria, as here. Phase contrast.
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Eucomonympha Cleveland, Hall, Sanders & Collier, 1934 is a hypermastigid with an acorn-shaped body (100-165 µm) living in the roach Cryptocercus punctulatus and in the termite Hodotermopsis sjoestedti. Flagella covering all the body, those of the rostrum are longer than others. Anterior rostrum separated from the post-rostral region by a slight constriction. Nucleus situated at the base of the rostrum. The axostylar fibers and the parabasal fibers originating from the base of the rostrum extend to the whole cytoplasm. Eucomonympha imla, from Hodotermopsis sjoestedti (phase contrast).
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Trepomonas agilis (Dujardin, 1841). Cell is ovoid, but S-shaped in cross section. Two nuclei are located anteriorly. Two groups of flagella are inserted laterally at the end of each groove: two long flagella and six short flagella. The short falgella are less than half the cell length and lie in the grooves (seen best here to viewer's left). Contractile vacuoles are seen.Collected from putifying sample from a freshwater pond near Boise, Idaho.DIC.
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Pyrsonympha (pierce-o-nymph-a) is an oxymonad flagellate, a group found as endobionts within termites etc. This one came from Reticulotermes. Pyrsonympha may or may not have an anterior holdfast, four - eight flagella, typically adhering to the cell surface, but as evident here, not always adhering. With an axostyle, seen here as a dark internal structure passing over the round anterior nucleus. They may or may not have associated epibiotic bacteria. Phase contrast.
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Eucomonympha Cleveland, Hall, Sanders & Collier, 1934 is a hypermastigid with an acorn-shaped body (100-165 µm) living in the roach Cryptocercus punctulatus and in the termite Hodotermopsis sjoestedti. Flagella covering all the body, those of the rostrum are longer than others. Anterior rostrum separated from the post-rostral region by a slight constriction. Nucleus situated at the base of the rostrum. The axostylar fibers and the parabasal fibers originating from the base of the rostrum extend to the whole cytoplasm. Eucomonympha imla, from Hodotermopsis sjoestedti (phase contrast).
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Trepomonas agilis Dujardin, 1841. Cell is ovoid, but S-shaped in cross section. Two nuclei are located anteriorly (densley stained here). Two groups of flagella are inserted laterally at the end of each groove: two long flagella and six short flagella (seen here).Stained by the silver carbonate technique (see Foissner, W. Europ. J. Protistol., 27:313-330;1991). Collected from a putrifying sample from a freshwater pond near Boise, Idaho.Brightfield.
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This scanning electron micrograph (SEM) of an untreated water specimen extracted from a wild stream mainly used to control flooding during inclement weather, revealed the presence of unidentified organisms, which included bacteria, protozoa, and algae. In this particular image, a protective biofilm had been inhabited by numbers of what appeared to be unidentified bacterial microorganisms.Created: 2009
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Eucomonympha Cleveland, Hall, Sanders & Collier, 1934 is a hypermastigid with an acorn-shaped body (100-165 µm) living in the roach Cryptocercus punctulatus and in the termite Hodotermopsis sjoestedti. Flagella covering all the body, those of the rostrum are longer than others. Anterior rostrum separated from the post-rostral region by a slight constriction. Nucleus situated at the base of the rostrum. The axostylar fibers and the parabasal fibers originating from the base of the rostrum extend to the whole cytoplasm. Eucomonympha imla, anterior part with the rostrum and the nucleus at its base (immunofluorescence).