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216 results for “Protista”
Figure 5 in New organic-walled Foraminifera (Protista) from the ocean's deepest point, the Challenger Deep (western Pacific Ocean)
Figure 5. Nodellum aculeata sp. nov. Scanning electron micrographs of test apertures. A, C, D, specimens in which test tapers gently towards circular aperture. B, specimen with abruptly truncated apertural end (entire test shown in Fig. 3E). The specimen shown in D is probable dead (empty); those shown in A–C probably contain cytoplasm. All scale bars = 10 Mm.
Figure 3 in New organic-walled Foraminifera (Protista) from the ocean's deepest point, the Challenger Deep (western Pacific Ocean)
Figure 3. Nodellum aculeata sp. nov. Scanning electron micrographs. A, general view of entire specimen. B, proloculus with rounded end; boxes indicate areas shown in detail in C and D. C–D, details of proloculus; most of the surface is strewn with rod-like particles but the organic wall is exposed in irregular patches. E, oblique view of aperture. F, general view of entire specimen with pointed proloculus and abruptly truncated distal end.
Figure 4 in New organic-walled Foraminifera (Protista) from the ocean's deepest point, the Challenger Deep (western Pacific Ocean)
Figure 4. Nodellum aculeata sp. nov. Scanning electron micrographs. A, general view of entire specimen with somewhat crooked shape; box indicates area shown in detail in E. B, proloculus. C, pointed end of proloculus showing tip devoid of agglutinated particles. D, transition between surface of proloculus with agglutinated particles (to left) and predominately organic surface of the main tubular part of the test; note the interdigitation of the two areas. E, detail of surface. F, higher magnification showing tiny, finger-like projections covering test surface.
Figure 16 in New organic-walled Foraminifera (Protista) from the ocean's deepest point, the Challenger Deep (western Pacific Ocean)
Figure 16. Conicotheca nigrans gen. et sp. nov. Scanning electron micrographs of same specimen. A, general view; area indicated by box is shown in detail in C. B, aperture. C, detail of surface. D, proximal part of test with swollen 'proloculus'; areas indicated by boxes are shown in detail in E and F. E, smooth area on 'proloculus'. F, rough area with scale-like features, probably clay particles.
Figure 2 in New organic-walled Foraminifera (Protista) from the ocean's deepest point, the Challenger Deep (western Pacific Ocean)
Figure 2. Nodellum aculeata sp. nov. Scanning electron micrographs. A, proloculus; box indicates area shown in C. B, transition between surface of proloculus with obvious agglutinated particles (to left) and predominately organic surface of the main tubular part of the test. C–F, progressively closer views showing rod-like agglutinated particles strewn across the surface of the proloculus.
Figure 1 in New organic-walled Foraminifera (Protista) from the ocean's deepest point, the Challenger Deep (western Pacific Ocean)
Figure 1. Nodellum aculeata sp. nov. Transmission light micrographs of type specimens, on open slides in glycerol. A, holotype, reg. no. MPC-02705. B–H, paratypes, reg. nos. ZF 5169; F, detail of distal end showing mass of cytoplasm. I–O, paratypes, reg. nos. MPC-02706-02709; K, detail of proloculus with rounded end; M, detail of distal part of specimen showing abrupt decrease in width and truncated end. All scales bars = 100 Mm except where indicated otherwise.
Fig. 4 in Morphology and Phylogeny of Four Marine Scuticociliates (Protista, Ciliophora), with Descriptions of Two New Species: Pleuronema elegans spec. nov. and Uronema orientalis spec. nov.
Fig. 4. Uronema orientalis spec. nov. in vivo (A, E–J), after protargol (B–D, K) and silver nitrate staining (L). A, E – ventral views of a typical cell; B, C – ventral (B) and dorsal (C) views of the same specimen, showing infraciliature and nuclear apparatus; D, K – detailed infraciliature of buccal area, arrowhead in (K) shows the gap between the anterior part and posterior parts of membranelle 1; F, G – ventral views, to show different body shapes; H – posterior region of cell, arrow points to caudal cilia, arrowheads show somatic cilia; I – ventral view, arrow refers to blue irregularly-shaped crystal, arrowhead indicates dumbbell-shaped crystal; J – ventral view, arrow shows contractile vacuole, arrowhead marks buccal field; L – ventral view, arrow shows contractile vacuole pore. M1, 2, 3 – membranelles 1, 2 and 3; M1a – the anterior part of membranelle 1; M1b – the posterior part of membranelle 1; Ma – macronucleus; PM – paroral membrane; Sc – scutica. Scale bars: A, B, C = 50 μm; E–G, J, K = 80 μm.
Fig. 3 in Morphology and Phylogeny of Four Marine Scuticociliates (Protista, Ciliophora), with Descriptions of Two New Species: Pleuronema elegans spec. nov. and Uronema orientalis spec. nov.
Fig. 3. Pleuronema grolierei Wang et al., 2008 (A–H) and P. setigerum Calkins, 1902 (I–M) in vivo (A–D, I–K) and after protargol (E–H, L, M). A, I – ventral views of typical individuals, arrow in (A) shows contractile vacuole, arrowheads in (I) mark paroral membrane; B – ventral view, arrowheads mark oral cilia; C, K – ventral views, arrowheads point to caudal cilia; D – ventral view, arrow marks ingested algae, arrowhead shows irregularly-shaped crystals; E – anterior region, arrow shows the anterior part of membranelle 2; F – detailed structure of the buccal area; G – posterior region, arrowhead points to membranelle 3; H – macronucleus; J – ventral view, arrowheads show irregularly-shaped crystals; L – posterior region, arrowhead indicates the ring-like posterior end of M2a; M – detailed structure of the buccal area, arrow marks membranelle 3, arrowheads show preoral kineties. M1 – membranelle 1; M2a – the anterior part of membranelle 2; M2b – the posterior part of membranelle 2; Ma – macronucleus. Scale bars: A, I = 20 μm, M = 5 μm.
Fig. 1 in Morphology and Phylogeny of Four Marine Scuticociliates (Protista, Ciliophora), with Descriptions of Two New Species: Pleuronema elegans spec. nov. and Uronema orientalis spec. nov.
Fig. 1. Map and photographs of biotopes (A–D) in which the samples were collected. A – no. 1 swimming beach, Qingdao (36°06′N; 120°32′E); B – beach near Sculpture Garden, Qingdao (36°4′N; 120°29′E); C – coastal area of no. 1 swimming beach, Qingdao (36°06′N; 120°32′E), the site that is further into the sea than that of (A); D – a mangrove wetland in Shenzhen, Guangdong Province (22°30′N; 114°37′E).
Fig. 5 in Morphology and Phylogeny of Four Marine Scuticociliates (Protista, Ciliophora), with Descriptions of Two New Species: Pleuronema elegans spec. nov. and Uronema orientalis spec. nov.
Fig. 5. Phylogenetic tree inferred from the small subunit ribosomal RNA (SSU rRNA) gene sequences, showing the positions of Pleuronema elegans spec. nov., P. grolierei, P. puytoraci, and Uronema orientalis spec. nov. (in bold). Numbers at nodes represent the bootstrap values of maximum likelihood (ML) out of 1,000 replicates and the posterior probability of Bayesian analysis (BI). The scale bar corresponds to five substitutions per 100 nucleotide positions.
Fig. 2 in Morphology and Phylogeny of Four Marine Scuticociliates (Protista, Ciliophora), with Descriptions of Two New Species: Pleuronema elegans spec. nov. and Uronema orientalis spec. nov.
Fig. 2. Pleuronema elegans spec. nov. in vivo (A, B, D, H–L), after protargol (E–G, M–Q) and silver nitrate staining (C). A, H – ventral view of a representative individual; B – detailed view of cortex to demonstrate arrangement of extrusomes; C – part of silverline system; D – swimming trace; E, F – ventral (E) and dorsal (F) views of the same specimen, showing infraciliature and nuclear apparatus; G – detailed structure of the buccal area, arrow shows the straight posterior end of M2a; I – ventral view, arrow marks paroral membrane and arrowhead shows ingested algae; J – ventral view, arrow shows membranelle 1, arrowheads mark the anterior part of membranelle 2; K – ventral view, arrowheads point to caudal cilia; L – ventral view, arrowheads mark somatic cilia; M – infraciliature of ventral side, arrow indicates membranelle 1, arrowhead refers to paired basal bodies; N – posterior region, arrow shows V-shaped posterior part of membranelle 2, arrowheads point to preoral kineties, double-arrowhead indicates membranelle 3; O – anterior region, arrowhead shows the anterior part of membranelle 2; P – macronucleus; Q – detailed view of membranelle 3 (arrowhead). M1, 3 – membranelles 1 and 3; M2a – the anterior part of membranelle 2; M2b – the posterior part of membranelle 2; Ma – macronucleus; PK – preoral kinety; PM – paroral membrane. Scale bars: A, E, F, H, I = 50 μm, J = 20 μm.
Fig. 1 in Free-living Heterotrophic Flagellates Lakes in Turkey (Protista) from Two Hypersaline
Fig. 1. Map of study sites.
Fig. 2 in Species Of Naked Amoebae (Protista) New For The Fauna Of Ukraine
Fig. 2. Thecamoeba quadrilineata, locomotory forms (a, b). x1240.
Fig. 1 in Species Of Naked Amoebae (Protista) New For The Fauna Of Ukraine
Fig. 1. Rhizamoeba sp., locomotory forms (a, b, c). ×1240. c
Fig. 5 in Species Of Naked Amoebae (Protista) New For The Fauna Of Ukraine
Fig. 5. Penardia mutabilis, locomotory forms (a, b). x1240.
Fig. 4 in Species Of Naked Amoebae (Protista) New For The Fauna Of Ukraine
Fig. 4. Flamella sp., locomotory forms
Fig. 7 in New Finds Of Naked Amoebae (Protista) In Water Reservoirs Of Ukraine
Fig. 7. Vahlkampfia sp.: 1–8 — lo- comotor forms, ×1240.
Fig. 6 in New Finds Of Naked Amoebae (Protista) In Water Reservoirs Of Ukraine
Fig. 6. Acanthamoeba sp.: 1–8 — locomotor forms; 9 — cysts, ×1240.
Fig. 3 in New Finds Of Naked Amoebae (Protista) In Water Reservoirs Of Ukraine
Fig. 3. Ripella sp.: 1–2 — locomotor forms, ×1240.
Fig. 2 in New Finds Of Naked Amoebae (Protista) In Water Reservoirs Of Ukraine
Fig. 2. Saccamoeba sp.: 1–11 — loco- motor forms, ×1240.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.