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11 results for “Pseudourostyla”
FIGURE 48 in Morphology, morphogenesis, and molecular phylogeny of a new brackish water ciliate, Pseudourostyla cristatoides n. sp., from Songjiho lagoon on the coast of East Sea, South Korea
FIGURE 48. Phylogenetic tree of 18S rRNA gene sequences showing the position of Pseudourostyla cristatoides n. sp. based on maximum likelihood (ML) and Bayesian inference (BI). Both bootstrap values for ML and posterior probability values for BI are represented on branches. Nodes with a solid circle show fully supported branches (100% ML, 100% BI).
FIGURES 32–42 in Morphology, morphogenesis, and molecular phylogeny of a new brackish water ciliate, Pseudourostyla cristatoides n. sp., from Songjiho lagoon on the coast of East Sea, South Korea
FIGURES 32–42. Photomicrographs of Pseudourostyla cristatoides n. sp. during interphase (32–34, holotype specimen) and morphogenesis (35–42) after protargol impregnation. 32, 34. Ventral views, with arrow and arrowhead indicating macronucleus and micronucleus, respectively. 33. Dorsal view showing complete dorsal kineties and each arrow marks the leftmost and the rightmost dorsal kineties. 35, 36. Ventral views of individuals in early dividing stage, arrows indicate oral primordium patches, arrowhead denotes dedifferentiated buccal cirrus. 37, 38. Ventral views of middle dividers, arrows and arrowheads indicate left and right marginal anlagen, respectively. 39–42. Ventral (39, 40, 42) and dorsal view (41) of late dividers showing migrating buccal cirrus (arrow in 39), frontoterminal cirri (arrows in 40, 42), pretransverse cirri (arrowheads in 40), and dorsal kineties anlagen 1 and 11 (arrows in 41). Scale bars: 100 μm.
FIGURES 24–31 in Morphology, morphogenesis, and molecular phylogeny of a new brackish water ciliate, Pseudourostyla cristatoides n. sp., from Songjiho lagoon on the coast of East Sea, South Korea
FIGURES 24–31. Photomicrographs of Pseudourostyla cristatoides n. sp. from life (bright field illumination, 24–29) and methyl green-pyronin impregnation (30, 31). 24–26. Dorsal views, arrows mark contractile vacuoles. 27. Ventral view to show arrangement of cirri. 28, 29. Dorsal views, arrow denotes narrowly spaced extrusomes, arrowheads in 29 indicate dorsal bristles. 30, 31. Extruded cortical granules (trichocyst type). Scale bars: 100 μm
FIGURES 43–47 in Morphology, morphogenesis, and molecular phylogeny of a new brackish water ciliate, Pseudourostyla cristatoides n. sp., from Songjiho lagoon on the coast of East Sea, South Korea
FIGURES 43–47. Reorganization in Pseudourostyla cristatoides n. sp. after protargol impregnation. 43, 44. Ventral (43) and dorsal (44) view of middle reorganizer showing left marginal row anlagen (arrow in 43), dorsal kineties anlagen (arrow in 44), extrusomes (arrowhead in 44). 45–47. Ventral views of late reorganizers displaying migrating buccal cirrus (arrow in 45), migrating frontoterminal cirri (arrow in 46, 47). Scale bars: 100 μm.
FIGURES 19–23. Pseudourostyla cristatoides n in Morphology, morphogenesis, and molecular phylogeny of a new brackish water ciliate, Pseudourostyla cristatoides n. sp., from Songjiho lagoon on the coast of East Sea, South Korea
FIGURES 19–23. Pseudourostyla cristatoides n. sp., reorganizers after protargol impregnation. 19–21. Ventral and dorsal views of middle reorganizers, the marginal rows originate by common anlage (left, arrow; right, arrowhead), the dorsal kinety anlagen form intrakinetally, and asterisk marks posteriorly migrating buccal cirrus. 22, 23. Ventral and dorsal view of late reorganizer, showing the anteriorly migrating frontoterminal cirri (arrow). Scale bars: 100 μm.
FIGURES 15–18. Pseudourostyla cristatoides n in Morphology, morphogenesis, and molecular phylogeny of a new brackish water ciliate, Pseudourostyla cristatoides n. sp., from Songjiho lagoon on the coast of East Sea, South Korea
FIGURES 15–18. Pseudourostyla cristatoides n. sp., dividers after protargol impregnation. 15–18. Ventral and dorsal views of late dividers, the micronuclei are finished division and arrows denote anteriorly migrating frontoterminal cirri. Mi, micronuclei. Scale bars: 100 μm.
FIGURES 6–14. Pseudourostyla cristatoides n in Morphology, morphogenesis, and molecular phylogeny of a new brackish water ciliate, Pseudourostyla cristatoides n. sp., from Songjiho lagoon on the coast of East Sea, South Korea
FIGURES 6–14. Pseudourostyla cristatoides n. sp., dividers after protargol impregnation. 6, 7. Ventral view of early dividers, the buccal cirrus (arrowheads) is dedifferentiated, arrows mark basal body patches left of some postoral midventral cirri, and proter's oral primordium (asterisk) develops from a "pocket" of buccal cavity. 8. Ventral view of late early divider, showing forming adoral membranelles, fronto-ventral-transverse cirral (asterisks) and marginal cirral anlagen (left, arrows; right, arrowheads). The posterior cirri of rear corona participate in the fronto-ventral-transverse cirral anlagen. 9–12. Ventral and dorsal views of middle dividers, the leftmost frontal cirrus develops from the anterior end of undulating membranes and migrates posteriorly (asterisks), the dorsal kineties originate by intrakinetal formation (arrows), and the micronuclei are slightly inflated. 13, 14. Ventral and dorsal view of late divider, arrows denote anteriorly migrating frontoterminal cirri. Ma, macronucleus; Mi, micronucleus. Scale bars: 100 μm.
FIGURES 1–5 in Morphology, morphogenesis, and molecular phylogeny of a new brackish water ciliate, Pseudourostyla cristatoides n. sp., from Songjiho lagoon on the coast of East Sea, South Korea
FIGURES 1–5. Morphology of Pseudourostyla cristatoides n. sp., from life (1, 2) and after protargol impregnation (3–5). 1. Ventral view of a representative individual, arrows indicate contractile vacuoles. 2. Ventral views of the process of forming contractile vacuoles. 3–5. Ventral (3) and dorsal views (4, 5) of the holotype specimen, arrow denotes the anteriormost midventral pair. AZM, adoral zone of membranelles; BC, buccal cirrus; DK, dorsal kineties 1; EM, endoral membrane; FC, frontal cirri forming bicorona; FTC, frontoterminal cirri; LMR, outermost left marginal row; Ma, macronucleus; Mi, micronucleus; MP, midventral pair; PM, paroral membrane; RMR, outermost right marginal row; TC, transverse cirri. Scale bars: 100 μm.
FIGURE 5. Protargolimpregnated specimens. a in Pseudourostyla pelotensis sp. nov. (Ciliophora, Stichotrichia, Urostylida): a new psammophilic ciliate from the southern Brazil
FIGURE 5. Protargolimpregnated specimens. a. Ventral side; b. Dorsal side; c. Extrusomes (arrows); d. Oral apparatus and macronuclear nodules. Arrow points to bowshaped structure associated to the undulating membranes; e. Formation of the new adoral membranelles during reoganizational morphogenesis (arrow); f. Ventral side of specimen with a shortened left marginal row (arrows). aC—anterior corona; AZM—adoral zone of membranelles; BC—buccal cirrus; DK —dorsal kineties; eM—endoral membrane; FTC—frontoterminal cirri; LMR—left marginal cirral row; Ma — macronuclear nodules; MVR—midventral cirral row; pC—posterior corona; pM— paroral membrane; RMR— right marginal cirral rows; TC— transverse cirri. Scale bars: 10 µm.
FIGURE 2 in Pseudourostyla pelotensis sp. nov. (Ciliophora, Stichotrichia, Urostylida): a new psammophilic ciliate from the southern Brazil
FIGURE 2. Schematic drawings of protargolimpregnated specimens. a. Ventral region. Arrow shows a variation of the virtual intersection of the undulating membranes; b. Dorsal region showing macronuclear nodules. Chromatin granulations are depicted in the two macronuclear nodules pointed by arrows. Asterisk marks the bowshaped structure, which is visible at the macronucleus focal plane; c. Dorsal region showing dorsal kineties (arrow) and marginal cirral rows. LMR — left marginal cirral rows; Ma — macronuclear nodule; RMR — right marginal cirral rows. Scale bars: 10 µm.
FIGURE 1 in Pseudourostyla pelotensis sp. nov. (Ciliophora, Stichotrichia, Urostylida): a new psammophilic ciliate from the southern Brazil
FIGURE 1. Schematic drawings of Pseudourostyla pelotensis sp. nov. a. Living specimen in ventral view; b. Scheme of living specimen showing the contractile vacuoles and their aspect during pulsation; c. Extrusomes aligned close to the pelicle, as seen in specimens from protargol slides; d. Ventral region of protargolimpregnated specimen; e. Bowshaped structure associated with the undulating membranes. Arrow marks new adoral membranelles in formation. aC — anterior corona; aCV — anterior contractile vacuole; AZM — adoral zone of membranelles; BC — buccal cirrus; BS — bowlike structure; eM — endoral membrane; FTC — frontotermial cirri; LMR — left marginal cirral rows; MVR — midventral cirral row; pC — posterior corona; pCV — posterior contractile vacuole; pM — paroral membrane; RMR — right marginal cirral rows; TC — transverse cirri. Scale bars: 10 µm.
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