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Fig. 7 in Ultrastructural Studies on a Model Tintinnid - Schmidingerella meunieri (Kofoid and Campbell, 1929) Agatha and Strüder-Kypke, 2012 (Ciliophora). I. Somatic Kinetids with Unique Ultrastructure
Fig. 7. Schematic drawing of the anterior portion of two adjacent kineties in the left ciliary field of Schmidingerella meunieri compiling all observations from transmission electron micrographs. The 20°–30° angles of the kinetids are not considered. The kineties are monokinetidal, except for one anterior dikinetid. The microtubules of the connecting (ribbons I) and postciliary ribbons form a network. I–III, extraordinary microtubular ribbons I–III; AP, axosomal plate; Axn, axoneme; Axs, axosome; CC, cytoplasmic connection; CG, core granule; CM, cortical microtubules; CP, ciliary pit; CT, central microtubules; EC, electron-dense cuff; Kd, kinetodesmal fibril; P, perilemma; Pc, postciliary ribbon; T, transverse ribbon.
Fig. 8 in Ultrastructural Studies on a Model Tintinnid - Schmidingerella meunieri (Kofoid and Campbell, 1929) Agatha and Strüder-Kypke, 2012 (Ciliophora). I. Somatic Kinetids with Unique Ultrastructure
Fig. 8. Schematics of somatic kinetids in Schmidingerella meunieri, namely of a dikinetid (A) and a monokinetid (B). The postciliary ribbons consist probably of four or five microtubules. The structure of ribbon III is somewhat variable, ranging from one layer containing four microtubules to two layers with six microtubules as in ribbon I. 1–9, triplets 1–9; I–III, extraordinary microtubular ribbons I–III; D, desmose; Kd, kinetodesmal fibril; Pc, postciliary ribbon; T, transverse ribbon.
Fig. 5 in Ultrastructural Studies on a Model Tintinnid - Schmidingerella meunieri (Kofoid and Campbell, 1929) Agatha and Strüder-Kypke, 2012 (Ciliophora). I. Somatic Kinetids with Unique Ultrastructure
Fig. 5. Schematic drawing of two consecutive dikinetids in an obliquely orientated dorsal kinety or posterior portion of the ventral kinety in Schmidingerella meunieri compiling all observations from transmission electron micrographs. The 20°–30° angles of the dikinetids are not considered. The posterior basal bodies insert somewhat more distally than the anterior ones and their cilia are connected with the left walls of the pits. The postciliary ribbons are shown in abridged form. I–III, extraordinary microtubular ribbons I–III; AP, axosomal plate; Axn, axoneme; Axs, axosome; CC, cytoplasmic connection; CG, core granule; CM, cortical microtubules; Co, condylocilium; CP, ciliary pit; CT, central tubules; EC, electron-dense cuff; Kd, kinetodesmal fibril; P, perilemma; Pc, postciliary ribbon; T, transverse ribbon.
Fig. 8 in Some Ultrastructural Features of the Planktonic Freshwater Ciliate Limnostrombidium viride (Alveolata, Ciliophora, Oligotrichida) and Improved Diagnoses of Oligotrich Taxa
Fig. 8. Nuclear apparatus of Limnostrombidium viride in the transmission electron microscope. (A) Interphase state showing the micronucleus in an indentation of the macronucleus, which has an irregular surface and contains numerous electron-dense inclusions, probably nucleoli. (B) A macronucleus showing the replication band. The arrow indicates the migration direction of the replication band. 1, zone of typical macronuclear structure; 2, zone characterised by protein and RNA production; 3, bright zone with beginning biosynthesis and DNA replication; MA, macronucleus; MI, micronucleus. Scale bars: 2 µm.
Fig. 4 in Some Ultrastructural Features of the Planktonic Freshwater Ciliate Limnostrombidium viride (Alveolata, Ciliophora, Oligotrichida) and Improved Diagnoses of Oligotrich Taxa
Fig. 4. Girdle kinety of Limnostrombidium viride (A, scanning electron micrograph; B, scheme of dikinetid). (A) Detail of kinety showing the two alternating types of girdle cilia. (B) Dikinetid with the associated structures; the presence of a transverse ribbon is uncertain. Numbering of the triplets (1–9) follows the "Grain convention", but is somewhat uncertain, as the triplets are difficult to identify. The scheme bases on numerous transmission electron micrographs (not shown). DS, desmose; KD, kinetodesmal fibril; PC, postciliary microtubular ribbon; SC1, club-shaped cilia of left dikinetidal basal bodies (originally anterior ones); SC2, condylocilia of right dikinetidal basal bodies (originally posterior ones). Scale bar: 2 µm.
Fig. 2 in Ultrastructure of fresh and post thawed sperm of pejerrey Odontesthes bonariensis (Atheriniformes)
Fig. 2. Transmission electron microscopy photographs of fresh sperm samples: (A) Spermatozoa longitudinal section showing the transitional region of the flagellum and the classic nine doublets of microtubules (9+0), arrow. (B) Longitudinal section of the head and midpiece of a spermatid. (C) Transversal section of the midpiece showing the axoneme surrounded by mitochondria. N: Nucleus; P: Proximal centriole; D: Distal centriole; CC: Citoplasmic Channel; M: Mitochondria; F: Flagellum.
Fig. 4 in Ultrastructure of fresh and post thawed sperm of pejerrey Odontesthes bonariensis (Atheriniformes)
Fig. 4. Transmission electron microscopy photographs of pejerrey post thawed sperm showing different types of alterations. (A) Head with ruptured membranes (*). (B) Head with swollen and broken membrane (*). (C) Broken and swollen nuclear membrane (arrows) and alteration of the spatial orientation of mitochondria. (D) Ruptured and swollen membrane of the flagellum (arrows) with vesicles. (E) Tail around the head (arrows). N: Nucleus; M: Mitochondria; V: Vesicles.
Fig. 3 in Ultrastructure of fresh and post thawed sperm of pejerrey Odontesthes bonariensis (Atheriniformes)
Fig. 3. Transmission electron microscopy photographs of the flagellum. (A) Flagellum axoneme showing the typical 9+2 doublets of microtubules. (B) Transversal section of the flagellum showing the lateral extensions like "fins" in both sides (arrows). (C) Longitudinal section of the flagellum. F: Flagellum.
Fig. 1 in Ultrastructure and development of the new stylets inside pre-molting first instar nymphs of the Asian citrus psyllid Diaphorina citri (Hemiptera: Liviidae)
Fig. 1. Transmission electron micrographs of thin sections in the cuticle and new and old stylets of a pre-molting 1st instar nymph of D. citri. A. Old (oc) and new (nc) layers of the cuticle, with minor (arrow) and major (double arrows) folds in the new cuticle; note the exuvial space (es) between the new and old cuticle, and the epidermal cells (ec) with large nuclei (nu) and nucleoli (ne). B. The old (functional) stylets; note the larger food canal (fc) and a narrower salivary canal (sc) between the 2 interlocked maxillary stylets (mx1, mx2), and a mandibular stylet (md) with 2 dendrites in its central canal (cc); the other mandibular stylet has sprung out (during processing) and is not included in this section. C & D. Two masses of hypodermal cells (hc1, hc2) with large nuclei, and hypodermal cell extensions (hce) that end with developing mandibular (md) and maxillary (mx) stylets on each side. Note that around hc1, 2 sections of each of the (coiled) mandibular and maxillary stylets are shown, but around hc2 only one section of the mandibular stylet can be seen (the rest of the stylet sections are outside the frame of this image). E. Higher magnification of 2 sections in a developing (coiled) mandibular stylet (md1, md2) and a developing (coiled) maxillary stylet (mx1, mx2); fc, part of the food canal; hce, hypodermal cell extension with a large nucleus (nu); sc, part of the salivary canal; inset shows details of the cuticular molding structure (cm).
Figure 3 in The sting of Mesobuthus gibbosus (Scorpiones: Buthidae): morphological and ultrastructural characterization
Figure 3: TEM micrographs of transverse sections of sting. A. Epicuticle and exocuticle of the three-layer sting cuticle; a chitin channel in the exocuticle, x1,900. B. Lamellar endocuticle layer and the underlying single row of cuboidal support cells (csc), x3,600. C. Intima, cylindrical support cells, endocuticle, and cuboidal support cells, x1,400. D. Intima and cylindrical support cells covering the intima, x2,900. E. Connective tissue cells filling the gaps within the sting, x2,900.
Figure 1 in The sting of Mesobuthus gibbosus (Scorpiones: Buthidae): morphological and ultrastructural characterization
Figure 1: A. Lateral view of M. gibbosus sting. The venom pore located at the tip of the sting, and several setae situated more basally are visible, x30. B. A cuticular seta, seta base, and a cuticular pit on the sting at higher magnification, x2,200
Fig. 4 in Echinococcus multilocularis (Cestoda, Cyclophyllidea, Taeniidae): functional ultrastructure of the penetration glands and nerve cells within the oncosphere
Fig. 4 TEM micrographs of the higher magnification showing exit regions of the Echinococcus multilocularis penetration glands. a Part of the oncosphere showing the exit of the type 2 penetration gland (PG2E). Note the liquefied aspect of their secretory granules (sg2L). b Part of the hexacanth near the exit of the type 1 penetration gland (PG1E). Note the liquefied aspect of their secretory granules (sg1L). c Enlarged detail of the liquefied secretory granules of the type 1 penetration gland (sg1L). HCh heterochromatin islands, HM hook musculature, HRM hook region membrane, N nucleus, OM oncospheral membrane, PG2A arm of the type 2 penetration gland, sg2 secretory granules of the type 2 penetration gland
Fig. 5 in Echinococcus multilocularis (Cestoda, Cyclophyllidea, Taeniidae): functional ultrastructure of the penetration glands and nerve cells within the oncosphere
Fig. 5 Oncospheral secretory regions of the hexacanth of Echinococcus multilocularis and comparison of three types of their secretory granules. a Somatophore area of hexacanth showing few secretory regions containing three types of secretory granules: sg1, sg2, and nsg granules. Two types of penetration glands, PG1 and PG2, show evidently different types of their secretory granules sg1 and sg2. b–d Higher magnification TEM micrographs showing ultrastructural details of three types secretory granules. sg1 (or sg2) represents secretory granules of the first (or second) type of penetration glands and nsg are neurosecretory granules of neurosecretory cells. H oncospheral hook, HCh heterochromatin islands, HM hook musculature, m mitochondria, N nucleus, n nucleolus, NCP nerve cell process, OM oncospheral membrane, RA "rouleau"-shaped assemblages of secretory granules, SC somatic cell
Fig. 3 in Echinococcus multilocularis (Cestoda, Cyclophyllidea, Taeniidae): functional ultrastructure of the penetration glands and nerve cells within the oncosphere
Fig. 3 Enlarged details of the secretory granules sg1 in the type 1 penetration gland of Echinococcus multilocularis oncosphere and the cytochemical test of Thiéry for ultrastructural evidence of glycogen. a High power TEM micrograph showing numerous "rouleau"-shaped assemblages (RA) of the secretory granules of the type 1 penetration gland (sg1). b Cytochemical test of Thiéry showing the presence of large number of beta-glycogen particles (β-gl) around the two types of penetration glands (PG1 and PG2); results obtained after freeze substitution technique. HCh heterochromatin islands, HM hook musculature, N nucleus, OM oncospheral membrane
Fig. 6 in Echinococcus multilocularis (Cestoda, Cyclophyllidea, Taeniidae): functional ultrastructure of the penetration glands and nerve cells within the oncosphere
Fig. 6 TEM micrographs of the anterior, somatophore region of the oncosphere of Echinococcus multilocularis. a Pole of the hexacanth showing a bilateral symmetry. Note the presence of the arms of the type 1 penetration gland (PG1A) between the median (MH) and lateral (LH) pairs of oncospheral hooks. b Detail of an oncosphere with the peripheral disposition of a nerve cell process containing neurosecretory granules (nsg). c Enlarged detail of neurosecretory granules (nsg). H oncospheral hook, HM hook musculature, HRM hook region membrane, m mitochondria, OM oncospheral membrane, PG1 type 1 penetration gland, SM somatic musculature
Fig. 1 in Echinococcus multilocularis (Cestoda, Cyclophyllidea, Taeniidae): functional ultrastructure of the penetration glands and nerve cells within the oncosphere
Fig. 1 Schematic diagram illustrating localization of three secretory regions of the egg of Echinococcus multilocularis: two types of the penetration glands (PG1 and PG2) and two nerve cells (NC) of neurosecretory type. Note the oncospheral tegument composed of its peripheral anucleated layer and submerged subepithelial perikaryon and the hook region membrane surrounding the somatophore pole of the hexacanth. To simplify the diagram, some other oncospheral structures or cell types such as somatic and hook muscle systems with their
Fig. 2 in Echinococcus multilocularis (Cestoda, Cyclophyllidea, Taeniidae): functional ultrastructure of the penetration glands and nerve cells within the oncosphere
Fig. 2 Details of two infective hexacanths of Echinococcus multilocularis obtained by means of freeze substitution technique. a TEM micrograph showing the two penetration glands (PG1 and PG2) and a nerve cell (NC). Note: (i) the nucleus (N) of a nerve cell with heterochromatin islands (HCh), (ii) the presence of numerous mitochondria (m) and (iii) the neurosecretory granules (nsg) located in a nerve cell process. b Area of hexacanth with two penetration glands (PG1 and PG2). Note the "rouleau"-shaped assemblages (RA) of secretory granules of the type 1 penetration gland (sg1). H oncospheral hook, HM hook musculature, n nucleolus, OM oncospheral membrane, r ribosomes, sg2 secretory granules of the type 2 penetration gland
Figs 200–204 in The Southeast Asian Pholcus halabala species group (Araneae, Pholcidae): new data from field observations and ultrastructure
Figs 200–204. Pholcus lambir Huber, sp. nov., ZFMK Ar 15060–61. 200–201. Left male palp, prolateral and retrolateral views. 202. Male chelicerae, frontal view. 203–204. Cleared female genitalia, ventral and dorsal views. Abbreviations: b = genital bulb; e = embolus; p = procursus; u = uncus. Scale lines: 0.3 mm (202–204), 0.5 mm (200–201).
Figs 211–218 in The Southeast Asian Pholcus halabala species group (Araneae, Pholcidae): new data from field observations and ultrastructure
Figs 211–218. Pholcus lambir Huber, sp. nov., ZFMK Ar 15060–61. 211–212. Left bulbal processes, prolateral (slightly distal) and ventral views (arrows point at sperm duct opening). 213. Epigynum, ventral view. 214. Distal male cheliceral apophyses. 215. Comb-hairs on male tarsus 4. 216. Male gonopore. 217–218. Female and male ALS. Abbreviations: e = embolus; u = uncus. Scale lines: 10 µm (215, 218); 20 µm (217); 30 µm (214, 216); 60 µm (211); 80 µm (212); 200 µm (213).
Figs 173–183. Pholcus schwendingeri Huber, 2011 in The Southeast Asian Pholcus halabala species group (Araneae, Pholcidae): new data from field observations and ultrastructure
Figs 173–183. Pholcus schwendingeri Huber, 2011, ZFMK Ar 15051–52. 173–174. Male prosoma, oblique and frontal views. 175. Female prosoma, frontal view. 176. Male eye triad. 177. Process between male eye stalks. 178–179. Right genital bulb and procursus, prolateral and dorsal views. 180. Left palp, retrolateral view (arrow points at whitish membranous structure). 181. Male gonopore. 182. Epigynum, ventral view. 183. FemaleALS. Abbreviations: a = appendix; b = genital bulb; e = embolus; p = procursus; tr = trochanter. Scale lines: 10 µm (183); 20 µm (177); 50 µm (181); 80 µm (176); 200 µm (175, 178– 180, 182); 400 µm (173–174).
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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.