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805 results for “nodulation”
Plant circadian clock control of Medicago truncatula nodulation involving regulation of Nodule Cysteine-Rich genes
<p>Legumes house nitrogen-fixing endosymbiotic rhizobia in specialized polyploid cells within root nodules, which undergo tightly regulated metabolic activity. By carrying out expression analysis of transcripts over time in Medicago truncatula nodules we found that the circadian clock enables coordinated control of metabolic and regulatory processes linked to nitrogen fixation. This involves the circadian clock-associated transcriptional factor LATE ELONGATED HYPOCOTYL (LHY), with lhy mutants being affected in nodulation. Rhythmic transcripts in root nodules include a subset of Nodule-specific Cysteine Rich peptides (NCRs) that have the LHY-bound conserved Evening Element in their promoters. Until now, studies have suggested that NCRs act to regulate bacteroid differentiation and keep the rhizobial population in check. However, these conclusions came from the study of a few members of this very large gene family that has complex diversified spatio-temporal expression. We suggest that rhythmic expression of NCRs may be important for temporal coordination of bacterial activity with the rhythms of the plant host, in order to ensure optimal symbiosis.</p>
Data for: Classification of benign-malignant thyroid nodules based on hyperspectral technology
<p>We propose a rapid diagnostic method for benign and malignant thyroid nodules based on hyperspectral technology to address the issue of insufficient diagnostic efficiency in thyroid cancer during surgery. Firstly, through the self-developed thyroid nodule hyperspectral collection system, a large number of diverse thyroid nodule samples were obtained. These thyroid nodule samples were collected through the hyperspectral collection system during thyroidectomy surgery, providing a foundation for subsequent diagnosis. We propose a benign and malignant classification method based on hyperspectral data blocks of thyroid nodules to better meet clinical needs. Meanwhile, using 3D CNN and VGG networks, we designed a neural network algorithm for classifying three-dimensional hyperspectral cubes. The classification accuracy of benign and malignant samples reached 84.63%. Overall, we have effectively classified the benign and malignant thyroid nodules using a collection system and data.</p>
FIGURE 49. Pierrella plicata n in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 49. Pierrella plicata n. sp. A, paratype, ZIRAS 2/50728; B–E, holotype, ZIRAS 1/50727; F, G, specimen YMG4–07, Stn 139. Specimens stained in Rose Bengal. A–E, zooids on arenaceous foraminiferan tubes, varying from linear and caudate to squat and more crowded; F, G, stained zooids seen in transmitted light. Abbreviations: at, alimentary tract; d, diaphragm; dmtd, dilator muscles and tendon of diaphragm; ofcp, orifice with folded cuticular pleats; pm, parietal muscles; r, rectum; rmtc, retractor muscles of tentacle crown; rt, retracted tentacles; sc, stomach caecum; t, tentacles; v, vestibule (filled with sediment). Scale bars: A–E, 500 µm; F, G, 50 µm.
FIGURE 50. Pierrella plicata n in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 50. Pierrella plicata n. sp. A, I, J, paratype, ZIRAS 2/50728; B–H, K, L, holotype, ZIRAS 1/50727. A, H, narrow, long-caudate zooids; C–E, G, squat zooids; B, F, zooids of intermediate shape; I–L, stiffly pleated orificial folds. Scale bars: A–D, 250 µm; E–H, 100 µm; I–L, 25 µm.
FIGURE 46 in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 46.?Anyutidae sp. incertae sedis. A–G, I–K, colony ZIRAS 1/50725; H, specimen GLD4–12, Stn 257. A, B, apical and oblique lateral views of capitulum (partly damaged); C, alveoli of capitulum surface; D, skeletal microstructure; E, crosssection through fascicle of autozooids and alveolar cavities; F, G, I, J, close-ups of fascicles of varied sizes and zooid dispositions; H, small fascicle in which one peristome has a calcified terminal diaphragm; K, interior wall of broken peristome showing crystallites. Scale bars: A, 500 µm; B, F, 250 µm; C, E, G, 200 µm; D, K, 50 µm; H–J, 100 µm.
FIGURE 43. Rallocytus ridiculus n. gen., n in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 43. Rallocytus ridiculus n. gen., n. sp. Paratype 1, ZIRAS 2/50724. A–D, apical and oblique views of fertile colony with two dimorphic zooids (arrowed), one with its aperture facing frontalwards, the other peristome turned slightly toward calyx center; E, F, peristomes, including a smaller frontally facing dimorphic one; G, two autozooidal peristomes with incurved dimorphic peristome between; H, base of column; I, skeletal microstructure; J, K, showing dimorphic and autozooidal apertures, respectively. Scale bars: A–C, 250 µm; D–H, 100 µm; J, K, 50 µm; I, 25 µm.
FIGURE 40. Anyuta anastema n. gen., n in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 40. Anyuta anastema n. gen., n. sp. Holotype, ZIRAS 1/50718. A, part of fascicle with autozooidal peristomes and two dimorphic peristomes with flanges; note large shallow alveoli on sides of peristomes; B, two peristomes, left one dimorphic; C, skeletal microstructure of part of peristome in L; D–G, subfascicles with both autozooidal and flanged dimorphic peristomes; H, close-up of squat flanged dimorphic peristome in E; note small alveoli on flanks of peristome; I, close-up of lower dimorphic peristome in F, showing it to be derived from an autozooidal peristome by its partial closure; J, base of column; K, L, close-ups of perforated flanges of dimorphic peristomes. Scale bars: A, B, D, F, 250 µm; G–J, 100 µm; K, L, 50 µm; C, 25 µm.
FIGURE 39. Anyuta anastema n. gen., n in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 39. Anyuta anastema n. gen., n. sp. A–D, holotype, ZIRAS 1/50718, in apical and lateral profiles; note the clusters of fascicles, at least three of which have dimorphic orifices with terminal flanges (dimorphic orifices arrowed). Scale bars: 500 µm.
FIGURE 37. Genus et species indet. A, D, F, G, colony 1, GLD4–11, Stn 211 in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 37. Genus et species indet. A, D, F, G, colony 1, GLD4–11, Stn 211, respectively showing capitulum with gonozooid floor developing across alveoli, and autozooidal peristomes at periphery; B, C, E, H, I, colony 2, GLD4–12, Stn 255, similar views of a colony with two gonozooid floors developing. Scale bars: A, B, 250 µm; C–H, 100 µm; I, 50 µm.
FIGURE 36. Genus et species indet. A, B, colony 1, GLD4–11, Stn 211 in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 36. Genus et species indet. A, B, colony 1, GLD4–11, Stn 211, rotational profiles; C, D, colony 2, GLD4–12, Stn 255, rotational profiles. Scale bars: 250 µm.
FIGURE 35. Calyssopora clarionensis n. gen., n in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 35. Calyssopora clarionensis n. gen., n. sp. Progressive stages of development of ancestrular and young colonies. A–D, specimen YMG18–01, Stn 24, three-zooid colony; E–H, specimen GLD4–08, Stn 144, four–five-zooid stage; I–L, specimen YMG4–07, Stn 134, seven-zooid stage with central cavity presumably representing incipient incubation chamber; M–P, specimen GLD4–11, Stn 209, eight-zooid stage with paired central cavities. Scale bars: 200 µm.
FIGURE 42. Rallocytus ridiculus n. gen., n in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 42. Rallocytus ridiculus n. gen., n. sp. Holotype, ZIRAS 1/50723. A–D, apical and oblique-lateral rotational views of colony with single dimorphic zooid, its smaller aperture (arrowed) facing frontalwards; E–G, peristomes and apertures of dimorphic zooid and adjacent autozooids; H, malleated colony surface at junction of capitulum and column. Scale bars: A–D, 250 µm; E–H, 100 µm.
FIGURE 33. Calyssopora clarionensis n. gen., n in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 33. Calyssopora clarionensis n. gen., n. sp. General view of holotype and paratype colonies. A, holotype, ZIRAS 1/ 50719, with fully hooded ooeciostome; B, paratype 1, ZIRAS 2/50720, with mostly hooded ooecostome; C, paratype 2, ZIRAS 3/50721, with ooeciopore visible; D, paratype 3, ZIRAS 4/50722, with partially developed ooeciostome not yet concealing ooeciopore. Scale bars: 250 µm.
FIGURE 31. Calyssopora vasiformis n. gen., n in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 31. Calyssopora vasiformis n. gen., n. sp. Holotype, ZIRAS 1/50717. A–D, rotational views of fertile colony; E, H, apical and oblique-lateral views of calyx with gonozooid; F, two autozooidal peristomes, with part of dimpled and alveolate calyx surface; G, close-up of calyx in A; I, ooeciostome and ooeciopore; J, close-up of G, with autozooidal peristomes and small alveoli; K, honeycomb-like surface malleation. Scale bars: A–D, G, H, 200 µm; E, F, J, K, 100 µm; I, 25 µm.
FIGURE 30. Calyssopora volcano n. gen., n in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 30. Calyssopora volcano n. gen., n. sp. Progressive stages of development of ancestrular and young colonies. A, B, specimen YMG4–13, Stn 291; C, D, specimen YMG4–07, Stn 139; E, F, specimen YMG4–14, Stn 358; G, H, specimen YMG4–04, Stn 57; I, J, specimen YMG4–13, Stn 283; K, L, specimen YMG4–13, Stn 300; M, N, specimen GLD4–09, Stn 198; O, P, specimen YMG4–13, Stn 274. A, B, four-zooid stage; C–F, four–five-zooid stages; G–J, five–six-zooid stages; K–P, later submature stages with calyciform colony center adequately structured with trabeculae and alveoli to support gonozooid development. Scale bars: 200 µm.
FIGURE 29. Calyssopora volcano n. gen., n in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 29. Calyssopora volcano n. gen., n. sp. A, D, L, holotype, ZIRAS 1/50714; B, E, G–I, K, paratype 1, ZIRAS 2/ 50715; C, F, J, paratype 2, ZIRAS 3/50716. A–C, oblique profiles of fertile colonies respectively shown in Fig. 28A, B, Fig. 28B, C and Fig. 28E, F; D–F, peristome of gonozooids respectively shown in A–C; G, calyx periphery showing short autozooidal peristomes, shallow alveoli and pores; H, skeletal microstructure of slope of ooeciostome; I, peristomes in oblique profile; J, abfrontal side of peristomes; K, two autozooidal apertures with large alveolus between; L, oblique bilaterally symmetrical autozooidal apertures. Scale bars: A–C, J, 250 µm; D–G, I, K, L, 150 µm; H, 25 µm.
FIGURE 53. Anyuta anastema n. gen., n in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 53. Anyuta anastema n. gen., n. sp. Micro-CT scans of paratype, NIWA 127725, as surface (C) and back-face isosurface renders showing colony interiors. A, view of colony from below; note absence of kenozooids from most of column; B, lateral abfrontal view of two small fascicles with entrance to dimorphic zooid indicated by arrowhead; note relative paucity of communication pores; C–E, exterior and interior views of colony base, showing lateral (C, D) and frontolateral (E) profiles with palisade of elongate-triangular kenozooidal chambers surrounding ancestrular protoecium (pr) and proximal part of its peristome (ap). Scale bars: 100 µm.
FIGURE 48. Haywardozoon pacificum n in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 48. Haywardozoon pacificum n. sp. Holotype, ZIRAS 1/50726. A–F, autozooids disposed on serpulid tube, all slightly collapsed through drying; G, H, orificial region showing operculum-like flap; I, autozooid, with dwarf ancestrular at lower right; J, close-up of ancestrula. Scale bars: A, F, 500 µm; B–E, I, 250 µm; G, 200 µm; H, I, 100 µm.
FIGURE 27. Alyonushka echinata n. gen., n in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 27. Alyonushka echinata n. gen., n. sp. Details of morphology. A, C, H, K, holotype, ZIRAS 1/50712; B, D–F, G, I, J, paratype, ZIRAS 2/50713. A, C, apical and oblique views of calyx with gonozooid (ooeciostome arrowed); note variable sizes of alveolar openings; B, D, oblique and near-profile views of calyx with gonozooid, with broken entrance to gonozooid arrowed; E, skeletal ultrastructure of outer peristomial wall; F, G, close-ups of broken entrance to gonozooid; H, lateral view of zooidal peristome with simpler spiky structures than those more proximal at calyx surface; I, J, spinules on interior walls of peristomes; K, variable alveolar openings and spinose texture of gonozooid surface. Scale bars: A–D, 200 µm; E–G, 100 µm; H–K, 50 µm.
FIGURE 28. Calyssopora volcano n. gen., n in Bryozoa (Cyclostomata and Ctenostomata) from polymetallic nodules in the Russian exploration area, Clarion - Clipperton Fracture Zone, eastern Pacific Ocean-taxon novelty and implications of mining
FIGURE 28. Calyssopora volcano n. gen., n. sp. A, B, holotype, ZIRAS 1/50714, with a single gonozooid; C, D, paratype 1, ZIRAS 2/50715, with two ooeciostomes and therefore two gonozooids presumed; E, F, paratype 2, ZIRAS 3/50716, with possibly newly completed gonozooid, having large alveolate spaces at left-hand periphery. Scale bars: 250 µm.
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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)
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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.