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20 results for “Oxytricha”
Fig. 4. A–F in Morphogenesis and Molecular Characterization of a Little Known Soil Ciliate, Oxytricha nauplia Berger et Foissner, 1987 (Ciliophora, Sporadotrichida)
Fig. 4. A–F. Morphogenesis of Oxytricha nauplia after protargol staining. (A, B) Ventral and dorsal views of the same mid-divider, arrowheads in A mark the dorsomarginal kineties anlagen and in B show the posterior fragmentation of the third dorsal kinety anlage (counted from left to right), arrows in B show the old caudal cirri. (C, D) Ventral and dorsal views of the same late divider, (C) shows the completely formed frontoventral-transverse cirri and (D) shows the caudal cirri (arrowheads). (E, F) Ventral and dorsal views of the same late divider just before cell division, to show the newly built ciliature and nuclear apparatus. AZM = adoral zone of membranelles; DK1, 2, 3, 4, 5 = dorsal kinety 1, 2, 3, 4, 5; LMC = left marginal cirri; TC = transverse cirri; I to VI represent anlagen I to VI. Scale bars = 30 μm.
Fig. 7 in Morphogenesis and Molecular Characterization of a Little Known Soil Ciliate, Oxytricha nauplia Berger et Foissner, 1987 (Ciliophora, Sporadotrichida)
Fig. 7. Drawings (A–C) and photomicrographs (D–G) of original population of Oxytricha nauplia after protargol staining. (A) Ventral ciliature (redrawing from the holotype). (B, C) Ventral (B) and dorsal (C) views of the holotype from Berger (1999), arrowhead shows a misinterpreted frontoventral cirrus. (D) Ventral ciliature of the holotype. (E) Magnification of frontoventral cirri of the holotype. (F) Ventral view of the anterior portion of a paratype, to show the arrangement of frontoventral cirri. (G) Dorsal view of the right portion of another paratype, to show dorsal kineties 5 and 6.
Fig. 3. A–G in Morphogenesis and Molecular Characterization of a Little Known Soil Ciliate, Oxytricha nauplia Berger et Foissner, 1987 (Ciliophora, Sporadotrichida)
Fig. 3. A–G. Morphogenesis of Oxytricha nauplia after protargol staining. (A) A section of ventral side of an early divider to show the three parts of oral primordium (arrowheads). (B) Ventral view of an early divider to show that basal bodies in oral primordium start mixing together (arrowhead) and a little group of basal bodies formed de novo at the right of postoral ventral cirrus V/4 (arrow). (C) Ventral view of an early divider to show the cirrus IV/2 is disorganized and the basal bodies at the right of postoral ventral cirrus V/4 are proliferated into a larger region (arrowhead). (D, E) Ventral and dorsal views of the same specimen, arrows in D show the frontoventral-transverse cirral anlage arisen, arrowheads show that the right marginal anlage of the opisthe and proter, and hollow arrow depicts the newly formed membranelles; arrowheads in E show dorsal kineties anlagen. (F, G) Ventral and dorsal views of the same specimen, showing the 6 streaks of frontoventral-transverse cirral anlage, arrowheads show the left marginal anlage of the opisthe and proter. DK, dorsal kinety; I to VI represent anlagen I to VI. Scale bars = 30 μm.
Fig. 2 in Morphogenesis and Molecular Characterization of a Little Known Soil Ciliate, Oxytricha nauplia Berger et Foissner, 1987 (Ciliophora, Sporadotrichida)
Fig. 2. Morphology of Oxytricha nauplia in vivo (A, D, E–J) and after protargol staining (B, C, K–N). (A) Ventral view of a representative individual. (B, C) Ventral (B) and dorsal (C) view of the same specimen, to show ciliature and nuclear apparatus. (D) Two different individuals to show that diversity of body shape depends on ingestion situation. (E–G) Ventral views of different individuals showing variation of body shapes. (H) Two macronuclear segments (arrowheads). (I) To show the bacterial plaques (arrowhead). (J) To show contractile vacuole and dorsal cilia (arrowheads). (K) Ventral view, to show the ciliature. (L) Dorsal view, to show the dorsal kineties, caudal cirri (arrowheads) and nuclear apparatus. (M) Magnification of the anterior ventral portion, showing the frontal, buccal, frontoventral cirri, paroral (arrowhead) and endoral membranlles. (N) Macronuclear segments and micronuclei (arrowheads). Ma, macronuclear segment. Scale bars = 45 μm.
Fig. 6 in Morphogenesis and Molecular Characterization of a Little Known Soil Ciliate, Oxytricha nauplia Berger et Foissner, 1987 (Ciliophora, Sporadotrichida)
Fig. 6. Maximum likelihood (ML) phylogenetic tree inferred from SSU rDNA sequences of 70 hypotrichs, and phylogenetic position of Oxytricha nauplia (red arrow). Black circle indicates four SSU rDNA sequences that include Uroleptopsis citrina (FJ870094), Nothoholosticha fasciola (FJ377548), Heterokeronopsis pulchra (JQ083600) and Anteholosticha monilata (KJ958488). Black triangle represents two SSU rDNA sequences that include Protogastrostyla sterkii (FJ870099) and Protogastrostyla pulchra (EF194082). Black square indicates two Trachelostylidae SSU rDNA sequences: Spirotrachelostyla tani (FJ870093) and Trachelostyla pediculiformis (DQ057346). Disagree- ment between ML and BI (*).
Fig. 5 in Morphogenesis and Molecular Characterization of a Little Known Soil Ciliate, Oxytricha nauplia Berger et Foissner, 1987 (Ciliophora, Sporadotrichida)
Fig. 5. Magnified photomicrographs of Oxytricha nauplia after protargol staining. (A) Ventral view of an early divider to show the three parts of oral primordium (arrowheads). (B) Ventral view of an early divider to show the cirrus IV/2 is disorganized and the basal bodies at the right of postoral ventral cirrus V/4 proliferated into a larger region (arrowhead). (C) Ventral view of an early middle divider, showing the frontoventral-transverse cirral anlage arisen. (D) Ventral view of a middle divider, showing the six streaks of the frontoventral–transverse cirral anlagen of proter. (E, F, G, H) Same specimen of a middle divider. (E) Ventral view of the anterior portion, showing unitized frontal–ventral–transverse cirri anlagen and the dorsomarginal kineties anlagen (arrowheads) in proter. (F) Ventral view of adoral zone of the opisthe, showing the frontal–ventral–transverse cirri of the opisthe. (G, H) Showing the fused macronucleus and the dividing micronuclei, arrowheads show the posterior fragmentation of the third dorsal kinety analge. (I) Another middle divider, arrowhead shows the anlage of cirrus I at the anterior end of undulating membranes anlagen. (J, K) The same specimen, showing the dividing of nuclear apparatus and ventral ciliature. Ma= macronuclear segments.
Fig. 2 in New record of three hypotrich soil ciliates (Ciliophora: Hypotricha) from South Korea: Oxytricha multilineata, Mixophrya pantanalensis pantanalensis and Caudiurostyla sinensis
Fig. 2. Mixophrya pantanalensis pantanalensis from life (A-C) and after protargol impregnation (D, E). A, Ventral view showing lithosomes (arrows); B, Cytoplasm showing cortical granule (arrows) and mitochondria (arrowheads); C, Cytoplasm showing surrounded lithosome (arrow) from crystalline structures and masses of granules (arrowhead); D, E, Ventral and dorsal view of typical specimen; AZM, adoral zone of membranelles; BC, buccal cirrus; CC, caudal cirri; FC, frontal cirri; LMR, left marginal cirral row; PTC, pretransverse cirri; RMR, right marginal cirral row; TC, transverse cirri; 1-6, dorsal kineties 1-6. Scale bars = 10 μm (B, C); 50 μm (A, D, E).
Fig. 3 in New record of three hypotrich soil ciliates (Ciliophora: Hypotricha) from South Korea: Oxytricha multilineata, Mixophrya pantanalensis pantanalensis and Caudiurostyla sinensis
Fig. 3. Caudiurostyla sinensis from life (A-E) and after protargol impregnation (F, G). A, B, Ventral view showing contractile vacuole (arrow); C, Ventral view from live; D, Ventral view showing cortical granules (arrows) lying along with cirral; E, Side view of cortical granules (arrow); F, G, Ventral and dorsal view of typical specimen; FC, frontal cirri; LMR, left marginal cirral row; RMR, right marginal cirral row; TC, transverse cirri. Scale bars = 10 μm (D, E); 50 μm (A, B, C, F, G).
Fig. 1 in New record of three hypotrich soil ciliates (Ciliophora: Hypotricha) from South Korea: Oxytricha multilineata, Mixophrya pantanalensis pantanalensis and Caudiurostyla sinensis
Fig. 1. Oxytricha multilineata from life (A, B) and after protargol impregnation (C, D). A, Ventral view showing cytoplasm and arrow indicating contractile vacuole; B, Dorsal view showing dorsal bristles (arrows); C, D, Ventral and dorsal view of typical specimen; AZM, adoral zone of membranelles; CC, caudal cirri; DM, dorsomarginal row; FC, frontal cirri; LMR, left marginal cirral row; PTC, pretransverse cirri; RMR, right marginal cirral row; TC, transverse cirri; 1-5, dorsal kineties 1-5. Scale bars = 50 μm.
Data from: The Oxytricha trifallax macronuclear genome: a complex eukaryotic genome with 16,000 tiny chromosomes
Open the record for dataset details and reuse information.
Role of small RNAs in gene dosage regulation in the ciliate Oxytricha trifallax
GEO Series GSE104078. Oxytricha trifallax. 14 samples. Type: Non-coding RNA profiling by high throughput sequencing; Expression profiling by high throughput sequencing; Other.
ChIP-seq analysis of Rpb1 from 12hr conjugating Oxytricha trifallax cells
GEO Series GSE55703. Oxytricha trifallax. 2 samples. Type: Genome binding/occupancy profiling by high throughput sequencing.
Otiwi1-interacting RNAs at four time points during Oxytricha conjugation
GEO Series GSE35018. Sterkiella histriomuscorum. 4 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Mating of the stichotrichous ciliate Oxytricha trifallax induces production of a class of 27nt small RNAs derived from the parental macronucleus
GEO Series GSE37390. Oxytricha trifallax. 11 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Demonstration of novel piRNA production in chromosome-fusion containing Oxytricha
GEO Series GSE78993. Sterkiella histriomuscorum; Oxytricha trifallax. 1 samples. Type: Non-coding RNA profiling by high throughput sequencing; Third-party reanalysis.
Fig. 1 in Morphogenesis and Molecular Characterization of a Little Known Soil Ciliate, Oxytricha nauplia Berger et Foissner, 1987 (Ciliophora, Sporadotrichida)
Fig. 1. Sample sites and surrounding areas.
sRNA profiling during Oxytricha conjugation
GEO Series GSE40081. Oxytricha trifallax. 2 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Cytosine methylation and hydroxymethylation mark DNA for elimination in Oxytricha trifallax.
GEO Series GSE41060. Oxytricha trifallax. 6 samples. Type: Methylation profiling by high throughput sequencing.
mRNA Expression Profiles of Macronuclear Development in Oxytricha trifallax Implicate Scores of Functionally and Evolutionarily Diverse DNA and RNA Binding Proteins in the Program
GEO Series GSE86081. Oxytricha trifallax. 14 samples. Type: Expression profiling by high throughput sequencing.
Genome-wide analysis of chromatin and transcription in the ciliates Oxytricha trifallax and Tetrahymena thermophila
GEO Series GSE94421. Tetrahymena thermophila; Oxytricha trifallax. 77 samples. Type: Expression profiling by high throughput sequencing; Methylation profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing.
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