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1,986 results for “valve”
Spns1-dependent endocardial lysosomal function drives valve morphogenesis through Notch1-signaling
<p>This doi contains raw data related to the article "Spns1-dependent endocardial lysosomal function drives valve morphogenesis through Notch1-signaling"</p> <p>Authors: Myra N. Chávez, Prateek Arora, Marco Meer, Ines J. Marques, Alexander Ernst, Rodrigo A. Morales Castro, Nadia Mercader</p> <p>the DOI of the manuscript is <a title="Persistent link using digital object identifier" href="https://doi.org/10.1016/j.isci.2024.111406" target="_blank" rel="noreferrer noopener"><span><span>https://doi.org/10.1016/j.isci.2024.111406</span></span></a></p>
Figure 4. Shell and opercular valves. A in Molecular analysis reveals a cryptic species of Chthamalus (Crustacea: Cirripedia) in the Cape Verde Islands
Figure 4. Shell and opercular valves. A, Chthamalus sp. from Praia, Cape Verde, top view. B–D, scutum and tergum inner view: B, Chthamalus sp. from Praia, Cape Verde; C, Chthamalus stellatus from Las Palmas, Gran Canaria, Canary Islands; D, C. stellatus from Biarritz, France. E, scutum and tergum outer view, Chthamalus sp. from Praia, Cape Verde.
FIGURES 12–15 in Taxonomy and valve ultrastructure of new and interesting freshwater fossil diatoms (Bacillariophyta) of Miocene age from the Espanola Formation of New Mexico, U.S.A. II. Description of a New Grunowia species with comments on the genus
FIGURES 12–15. Grunowia mannii Kociolek & Danz sp. nov. SEM. Valve interior. 12–14. Entire valves, showing differences in valve shape relative to length. Large fibulae and large portules over the raphe canal are evident. 15. View of central nodule showing small, helictoglossa-like center and discontinuous raphe branch. Scale bars = 5 µm (Fig. 12), 4 µm (Fig. 13), 3 µm (Fig. 14), 1 µm (Fig. 15).
FIGURES 1–7 in Taxonomy and valve ultrastructure of new and interesting freshwater fossil diatoms (Bacillariophyta) of Miocene age from the Espanola Formation of New Mexico, U.S.A. II. Description of a New Grunowia species with comments on the genus
FIGURES 1–7. Grunowia mannii Kociolek & Danz sp. nov. LM. Size diminution series. Fig. 1 represents an initial valve. The holotype is presented in fig. 4. Scale bar = 10 µm.
FIGURES 8–11 in Taxonomy and valve ultrastructure of new and interesting freshwater fossil diatoms (Bacillariophyta) of Miocene age from the Espanola Formation of New Mexico, U.S.A. II. Description of a New Grunowia species with comments on the genus
FIGURES 8–11. Grunowia mannii Kociolek & Danz sp. nov. SEM of valve exterior. 8, 9. Valve view showing characteristic shape and distinctly-elevated, raphe-bearing keel. 10. Apex of the valve showing raphe end extending onto the mantle. 11. Central portion of the valve, with raphe branches interrupted. Scale bars = 5 µm (Figs 8, 9), 3 µm (Fig. 10), 2 µm (Fig. 11).
FIGURES 21–25. Cymbella amicula stat. nov. et nom. nov. SEM external view. 21. Frustule and whole valve. 22–25 in Cymbopleura amicula stat nov. et. nom. nov. (Bacillariophyceae)-a rare diatom species from a karst river in Croatia
FIGURES 21–25. Cymbella amicula stat. nov. et nom. nov. SEM external view. 21. Frustule and whole valve. 22–25. External view of whole valves. Scale bars 5 µm (Figs 21–25).
FIGURES 42–46. SEM micrographs. 42–43. Planothidium frequentissimum. 42. Internal valve view showing the roundish cavum with the narrow opening. 43 in A new species of an unexplored diatom genus: Gomphosphenia minima sp. nov. (Cymbellales, Rhoicospheniaceae)
FIGURES 42–46. SEM micrographs. 42–43. Planothidium frequentissimum. 42. Internal valve view showing the roundish cavum with the narrow opening. 43. External view showing the striae composed of three rows of small rounded areolae, and straight raphe branches with expanded drop–like proximal raphe endings. 44–45. Sellaphora nigri. 44. External valve view showing the bow tie-shaped central area and the 'tear-drop' shaped proximal ends of the raphe. 45. External valve view showing the areoles closest to the raphe being larger and slightly angular, square or nearly rounded, while the marginal areoles become smaller and more circular. 46. Eunotia minor, girdle view. Scale bar = 3 µm.
FIGURES 16–19 in Valve Ultrastructure and Description of a new Luticola D.G.Mann (Bacillariophyceae) species from Colorado, USA
FIGURES 16–19. Luticola coloradiana, sp. nov. Scanning electron microscopy. Internal views. Figs 16, 17. Valve views, showing expanded, internally-raise fascia of the central area bearing straight proximal raphe ends, a simple stigma opening, and inwardly protruding siliceous structures from the margin and valve face. Scale bars = 10 µm. Fig. 18. Central nodule with proximal raphe ends and round stigma opening. Scale bar = 0.3 µm. Fig. 19. Distal raphe end with small helictoglossa. Scale bar = 0.3 µm.
FIGURES 1–8 in Valve Ultrastructure and Description of a new Luticola D.G.Mann (Bacillariophyceae) species from Colorado, USA
FIGURES 1–8. Luticola coloradiana, sp. nov. Light microscopy. Valve views. Size diminution series. All specimens are from the holotype slide. Scale bar = 10 µm for all images.
FIGURES 12–15 in Valve Ultrastructure and Description of a new Luticola D.G.Mann (Bacillariophyceae) species from Colorado, USA
FIGURES 12–15. Luticola coloradiana, sp. nov. Scanning electron microscopy. External views. Fig. 12. Central area with deflected external proximal raphe ends. Arrow indicates stigma opening. Scale bar = 1.5 µm. Fig. 13. Showing many depressions in the central area, many of which also have very small, rounded granules. Scale bar = 1.5 µm. Fig. 14. External distal raphe end is hooked and extends onto the mantle. Scale bar = 1.0 µm. Fig. 15. Girdle view of the end of the valve. Elevated ridge around the margin of the valve is evident. There is a row of elongated areolae which have a row of smaller areolae positioned towards the valve. Cingulum elements have a row of poroids. Scale bar = 2.5 µm.
FIGURES 9–11 in Valve Ultrastructure and Description of a new Luticola D.G.Mann (Bacillariophyceae) species from Colorado, USA
FIGURES 9–11. Luticola coloradiana, sp. nov. Scanning electron microscopy. External valve views. Figures 9–11. Valves demonstrate rugose nature of the valve face. Striae appear interrupted longitudinally. Proximal raphe ends are deflected towards the same side; stigma opening is positioned on the opposite side. In figures 10 and 11, the margin of the valves has an elevated ridge. In figure 11 the mantle of the valve has a series of elongated areolae. Scale bars = 5 µm.
FIGURE 21. Glyptobairdia trinodosa Teeter, specimen 4083W. A–B in Taxonomic applications of the esophageal flapper valve in Bairdoppilata and Glyptobairdia (Bairdiidae, Ostracoda), with comments on anatomy, ontogeny, and geography
FIGURE 21. Glyptobairdia trinodosa Teeter, specimen 4083W. A–B, RV and LV exteriors in transmitted light; C–D, RV and LV exteriors in reflected light; E–F, RV and LV exteriors in transmitted light, with high focus to show incised punctate ornament, bulbous central nodes, and U–shaped central ridge; G–H, RV and LV exteriors in transmitted light, showing details of punctate ornament and nodes in central region; I, RV interior in transmitted light with long hinge, showing crescentic terminal teeth that project dorsally and ligamental crenulation of median bar; J, LV interior in transmitted light with long hinge, showing ligamental crenulation of median groove and pustular texture of dorsal surface. Scale bar = 50 µm.
FIGURE 20. Glyptobairdia trinodosa Teeter. H in Taxonomic applications of the esophageal flapper valve in Bairdoppilata and Glyptobairdia (Bairdiidae, Ostracoda), with comments on anatomy, ontogeny, and geography
FIGURE 20. Glyptobairdia trinodosa Teeter. H:L scatter plot for 19 adult subfossil specimens (1 carapace, 8 LV, 8 RV) from 2 localities. Because of extreme valve asymmetry, LV plot in the upper cluster and RV plot in the lower cluster. Without soft–part control, sexual dimorphism cannot be verified, although it is likely that the longer specimens are females.
FIGURE 19 in Taxonomic applications of the esophageal flapper valve in Bairdoppilata and Glyptobairdia (Bairdiidae, Ostracoda), with comments on anatomy, ontogeny, and geography
FIGURE 19. Glyptobairdia coronata (Brady), juvenile subfossil specimens from Florida. A–G, specimen 4078WJ, A–2 instar: A, C, E, RV exteriors in transmitted light, showing alignment of punctate ornament, elongate caudal process, terminal spinule, and tiny, irregular posteroventral frill; B, D, F, LV exteriors in transmitted light, showing alignment of punctate ornament, with marginal spinule at anterodorsal corner, zig-zag edges of incipient posteroventral frill, and sinuate caudal process; G, RV exterior in transmitted light, showing sinuate caudal process, with small terminal spinule and zig-zag posteroventral frill; incipient bairdoppilatan dentition is developed as six tiny denticles (or granules) on bend of posterodorsal edge. H, J, specimen 4077RVJ, A–1 instar: RV exterior in transmitted light, showing alignment of punctate ornament, darker NPC, AMS, narrow infold, and absence of calcified inner lamella. I, K–L, specimen 4076LVJ, A–1 instar: LV exterior in transmitted light, at high and low focus, to show delicate network of aligned punctate ornament, darker NPC, AMS, narrow infold, and absence of calcified inner lamella. Scale bar = 50 µm.
FIGURE 18 in Taxonomic applications of the esophageal flapper valve in Bairdoppilata and Glyptobairdia (Bairdiidae, Ostracoda), with comments on anatomy, ontogeny, and geography
FIGURE 18. Glyptobairdia coronata (Brady), male specimen 2441M from Bermuda. A–B, RV and LV exteriors in transmitted light, showing hexagonal lateral outlines with well–marked corners, narrowly extended caudal processes, and densely punctate ornament with central ridges, marginal denticles and frills, and sensilla; C, dorsal view of both hemipenes and zygum; D–E, dorsal views of right and left hemipenes, with bifurcate tip of coiled copulatory tube, setulose distal appendage, distal element, and other appendages; F, distal claws of A2; G–H, RV and LV exteriors in transmitted light, showing details of punctate ornament, with central ridges, sensilla along crest of ridge, polygonal puncta with stippled floors, narrow muri, NPC, and AMS. Scale bar = 50 µm.
FIGURE 17 in Taxonomic applications of the esophageal flapper valve in Bairdoppilata and Glyptobairdia (Bairdiidae, Ostracoda), with comments on anatomy, ontogeny, and geography
FIGURE 17. Glyptobairdia coronata (Brady). H:L scatter plot for 290 subfossil specimens from 10 Caribbean localities. Because of extreme valve asymmetry, two elongate diagonal clusters are evident: the upper cluster includes 180 LV and carapaces, and the lower cluster represents 110 RV. Adult females tend to plot at the upper right of each cluster, while males plot at the lower left. Separate clusters for instars A–1 and A–2 are represented in the Florida assemblages. In general, specimens from Bermuda tend to be larger, and those from Florida smaller, than those at other localities.
FIGURE 16. A, B in Taxonomic applications of the esophageal flapper valve in Bairdoppilata and Glyptobairdia (Bairdiidae, Ostracoda), with comments on anatomy, ontogeny, and geography
FIGURE 16. A, B, Bairdoppilata scaura Maddocks [Hawaii]: A, male specimen 3860M: esophageal plate. B, male specimen 3864M: left lateral view of mouth region, with upper and lower lips, atrium, esophagus, U–shaped strut of upper lip, ciliate hemispherical mound of lower lip, flagellate seta projecting into atrium, and setules of forehead and sternum. C, Bairdoppilata sp. 2 [of Maddocks 2015, Hawaii]: female specimen 3969F: esophageal valve with ring, collar, belt and plate. D, Bairdoppilata sp. 3 [of Maddocks 2015, Hawaii]: female specimen 3923F: esophageal valve with collar, plate, bracket, and basal ends of braces. E, Bairdoppilata sp. 4 [of Maddocks 2015, Hawaii]: female specimen 3963F: esophageal plate with bracket. F–I, Bairdoppilata sp. 2 [of Morais & Coimbra 2017, Brazil], female specimen 817F: F, A2 claws; G, esophageal plate and bracket; H, both braces; I, genital lobe. Scale bar = 50 µm.
FIGURE 15. A–I in Taxonomic applications of the esophageal flapper valve in Bairdoppilata and Glyptobairdia (Bairdiidae, Ostracoda), with comments on anatomy, ontogeny, and geography
FIGURE 15. A–I, Bairdoppilata sp. 2 [of Morais & Coimbra 2017, Brazil]. A–D, female specimen 3991F: A, right exterior of whole animal before dissection, in transmitted light, with median eye in anterodorsal region, immature eggs in posterodorsal region; B, LV exterior, damaged, showing AMS and sensilla; C, LV exterior, with AMS and sensilla; D, A2 distal claws. E–G, female specimen 3987F: E, A2 distal claws; F, left side of soft body before dissection, with large median eyes, food balls in gut, and eggs in oviducts; G, genital lobe. H–I, female specimen 3988F: H, LV interior, torn, with AMS and sensilla; I, LV interior, showing AMS and texture of smooth valve. J–L, Bairdoppilata martyni Coryell, Sample and Jennings [Oligocene, Mississippi]: J–K, specimen 1018RV: J, RV exterior in reflected light, showing patch pattern, note occasional clear circles around largest NPC; K, RV exterior in transmitted light, showing patch pattern and NPC. L, specimen 1019LV: LV exterior in transmitted light, showing patch pattern, note occasional clear circles around largest NPC. Scale bar = 50 µm.
FIGURE 2. A–E in Taxonomic applications of the esophageal flapper valve in Bairdoppilata and Glyptobairdia (Bairdiidae, Ostracoda), with comments on anatomy, ontogeny, and geography
FIGURE 2. A–E, Bairdoppilata alcyonicola Maddocks, adult specimen 764W: A, RV exterior; B, LV exterior; C, RV interior, denticles on anterodorsal edge; D, RV interior, lateral view of hinge, showing ligamental striation on dorsal surface of hinge bar and teeth; E, LV interior, lateral view of hinge, showing ligamental striation on dorsal surface of hinge groove and sockets; arrows point toward anterior. F–H, Bairdoppilata cratericola Maddocks, adult specimen 763W. F, RV exterior, G, LV exterior; H, RV interior, AMS, arrow points toward anterior. Scale bar = 50 µm.
FIGURE 6 in Taxonomic applications of the esophageal flapper valve in Bairdoppilata and Glyptobairdia (Bairdiidae, Ostracoda), with comments on anatomy, ontogeny, and geography
FIGURE 6. Bairdoppilata cushmani (Tressler), male specimen 1651M from the Bahamas. A–B, distal claws of both A2; C–D, esophageal valve with ring, belt, collar, plate and bracket, at higher focus for belt and corner teeth, and at lower focus for bracket and medial teeth; E, plate and bracket; F, both braces; G–H, both hemipenes; I, posteroventral fragment of decalcified RV exterior, showing posterior angle and ventral margin with RPC, marginal frill, and sensilla; arrow points to anterior; J, posterodorsal fragment of decalcified LV exterior, showing crenulation of hinge; also parts of food ball, testes, and seminal vesicles; arrow points to anterior; K, left lateral view of mouth region, showing spinules around sclerotized edge of upper lip, and ciliate hemispherical mound within lower lip, with flagellate seta projecting into atrium; L, ciliate hemispherical mound of lower lip, with flagellate seta projecting into atrium. Scale bar = 50 µm.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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