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8 results for “Lepidometopus”
Fig. 8. A–H in A Huge Diversity of Metopids (Ciliophora, Armophorea) in Soil from the Murray River Floodplain, Australia. II. Morphology and Morphogenesis of Lepidometopus platycephalus nov. gen., nov. spec.
Fig. 8. A–H. Lepidometopus platycephalus, ciliary pattern and nuclear apparatus of a late divider (A, B), early post-dividers (C–F), and a late post-divider (G, H) in protargol preparations. Arrowheads in (A, B) mark barren area that forms at the posterior end of the proter and at the anterior end of the opisthe after the parental somatic ciliary rows split in the middle. Dashed lines in (D, F) delimit the flattened anterior body portion, i.e., the preoral dome. AZP – adoral zone of polykinetids; CP – cytopharynx; CV – contractile vacuole; MA – macronucleus; MI – micronucleus; OAZP – opisthe's adoral zone of polykinetids; OPM – opisthe's paroral membrane; OPS – opisthe's perizonal stripe; PAZP – proter's adoral zone of polykinetids; PD – preoral dome; PM – paroral membrane; PPM – proter's paroral membrane; PPS – proter's perizonal stripe; PS – perizonal stripe; SK – somatic kineties. Scale bars: 20 µm.
Fig. 5. A–E in A Huge Diversity of Metopids (Ciliophora, Armophorea) in Soil from the Murray River Floodplain, Australia. II. Morphology and Morphogenesis of Lepidometopus platycephalus nov. gen., nov. spec.
Fig. 5. A–E. Lepidometopus platycephalus in the SEM. A. Epicortical scales (lepidosomes). B. Left side overview, showing the strongly flattened preoral dome (asterisk). C. Oblique posterior polar view, showing the globular postoral portion roofed by the cap-shaped preoral dome. D. Detail of oral area, showing the tongue-like paroral membrane and the adoral zone of polykinetids whose cilia spread backwards. The dome lip is very narrow while the side stripe forms a rather deep channel covered with epicortical scales. E. Ventrolateral view of oral body portion. The arrowhead marks entrance to buccal cavity. This cell lost lepidosomes during the preparation process. AC – adoral cilia; DL – dome lip; PD – preoral dome; PM – paroral membrane; PS – perizonal stripe; SC – somatic cilia; SS – side stripe. Scale bars: 1 µm (A), 5 µm (D, E), and 20 µm (B, C).
Fig. 6. A–J in A Huge Diversity of Metopids (Ciliophora, Armophorea) in Soil from the Murray River Floodplain, Australia. II. Morphology and Morphogenesis of Lepidometopus platycephalus nov. gen., nov. spec.
Fig. 6. A–J. Lepidometopus platycephalus, ciliary pattern and nuclear apparatus of early dividers (A–H) and of an early mid-divider (I, J) after protargol impregnation. Arrowheads mark the prospective adoral polykinetids formed at the posterior end of dorsal and dorsolateral kineties. Asterisks denote the prospective adoral polykinetids developing at the anterior end of the postoral kineties. Arrow in (I) points to two dorsolateral kineties which migrate towards the growing perizonal stripe to become perizonal rows 4' and 5' in the opisthe. BU – bulge; CV – contractile vacuole; MA – macronucleus; MI – dividing micronucleus; OAZP – opisthe's adoral zone of polykinetids; PAZP – proter's adoral zone of polykinetids; PM – paroral membrane; PPS – proter's perizonal stripe. Scale bars: 20 µm.
Fig. 7. A–F in A Huge Diversity of Metopids (Ciliophora, Armophorea) in Soil from the Murray River Floodplain, Australia. II. Morphology and Morphogenesis of Lepidometopus platycephalus nov. gen., nov. spec.
Fig. 7. A–F. Lepidometopus platycephalus, ciliary pattern and nuclear apparatus of mid-dividers after protargol impregnation. Asterisks denote scattered dikinetids of perizonal rows 1 and 2 that migrate along the new adoral zone to assemble the opisthe's paroral membrane. Arrows point to two dorsolateral kineties which migrate towards the opisthe's perizonal stripe to become rows 4' and 5'. Arrowheads mark newly formed ciliary rows left of opisthe's adoral zone. CH – chromosomes; F – fibres; MA – macronucleus; MI – micronucleus; OAZP – opisthe's adoral zone; OPM – opisthe's paroral membrane; PAZP – proter's adoral zone; PD – preoral dome; PPM – proter's paroral membrane; PS – perizonal stripe rows. Scale bars: 20 µm.
Fig. 4. A–J in A Huge Diversity of Metopids (Ciliophora, Armophorea) in Soil from the Murray River Floodplain, Australia. II. Morphology and Morphogenesis of Lepidometopus platycephalus nov. gen., nov. spec.
Fig. 4. A–J. Lepidometopus platycephalus in the SEM. A–E. Ventral (A), right side (B), dorsolateral (C, D), and left side (E) overview, showing general body organization. Opposed arrowheads mark the strongly flattened distal portion of the preoral dome (B, E); arrows denote left side cilia (B–D). F. Ventrolateral view, showing the paroral membrane and the perizonal stripe. G. Dorsolateral view, showing five perizonal rows. H. Epicortical scales. I, J. Only a single basal body is ciliated in the postoral dikinetids (I) except for the left side kineties where both basal bodies are ciliated (J). (1–5) – perizonal rows; AZP – adoral zone of polykinetids; PD – preoral dome; PM – paroral membrane; PS – perizonal stripe; SC – somatic cilia. Scale bars: 1 µm (H), 2 µm (G), 3 µm (F), 5 µm (I, J), and 20 µm (A–E).
Fig. 3. A–H in A Huge Diversity of Metopids (Ciliophora, Armophorea) in Soil from the Murray River Floodplain, Australia. II. Morphology and Morphogenesis of Lepidometopus platycephalus nov. gen., nov. spec.
Fig. 3. A–H. Lepidometopus platycephalus from life (A–D) and after silver carbonate impregnation (E–H). Asterisks mark the strongly flattened preoral dome (A–C, E). Opposed arrowheads denote cortex and epicortical scale layer (A, C, D). A, B, E. Ventro- (A, B) and dorsolateral (E) overviews, showing general body organization. C. Detail of anterior body portion. D. Detail of posterior body end, showing the single elongated caudal cilium. F. Lateral view, showing somatic ciliary pattern and nuclear apparatus. G, H. Dorsolateral views of anterior body portion, showing the oral ciliary pattern, the perizonal stripe, and the nuclear apparatus. AZP – adoral zone of polykinetids; CC – caudal cilium; CV – contractile vacuole; MA – macronucleus; MI – micronucleus; PM – paroral membrane; PS – perizonal stripe; SK – somatic kineties; SC – somatic cilia. Scale bars: 10 µm (C, G, H) and 20 µm (A, B, D–F).
Fig. 1 in A Huge Diversity of Metopids (Ciliophora, Armophorea) in Soil from the Murray River Floodplain, Australia. II. Morphology and Morphogenesis of Lepidometopus platycephalus nov. gen., nov. spec.
Fig. 1. Various views of semi-schematized anterior body portion of Lepidometopus. Opposed arrowheads mark the strongly flattened distal portion of the preoral dome. AZP – adoral zone of polykinetids (black); PS – perizonal stripe (grey); SS – side stripe.
Fig. 2. A–V in A Huge Diversity of Metopids (Ciliophora, Armophorea) in Soil from the Murray River Floodplain, Australia. II. Morphology and Morphogenesis of Lepidometopus platycephalus nov. gen., nov. spec.
Fig. 2. A–V. Lepidometopus platycephalus from life (A, D, F–I), after silver carbonate (B, C) and protargol (J–V) impregnation, and in the SEM (E). A. Ventrolateral view of a representative specimen, length 45 µm. Arrows denote left side cilia; arrowhead marks the distally tapered caudal cilium. B. The perizonal stripe is composed of five rows: the first three rows are arranged more closely than the two last rows whose dikinetids are slightly shifted, providing the stripe with a staggered appearance. C. The oral ciliature consists of an average of 11 adoral polykinetids and a paroral membrane optically intersecting the adoral zone. D. Optical section showing the epicortical layer. E. Epicortical scales have various shapes and are about 1.25 × 0.45 µm in size. F–I. Body perspectives. J, O–V. Variability of body shape and size as well as of nuclear apparatus. Dashed line delimits the strongly flattened anterior body portion. Drawn to scale. K–N. Dorso- and ventrolateral views of ciliary pattern and nuclear apparatus of the holotype (K, L) and of a paratype (M, N) specimen. AZP – adoral zone of polykinetids; CP – cytopharynx; CV – contractile vacuole; LE – lepidosomes; MA – macronucleus; MI – micronucleus; PD – preoral dome; PM – paroral membrane; PS (1–5) – perizonal stripe (rows); SC – somatic cilium; SK – somatic kineties. Scale bars: 20 µm.
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