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3 results for “embryo volume”
Text-fig. 1. Gastonispermum portugallicum gen. et sp. nov. seeds from the Early Cretaceous Famalicão locality (sample 025), Portugal; Synchrotron radiation X-ray tomographic microscopy (SRXTM, volume renderings). Note remains of mounting media on several seeds (¤). a) Seed in oblique view showing seed shape, the slightly raised raphal ridge and the position of hilum (hi) and micropyle (mi) on the raphal side of the seed (S170218). b, c) Seeds in lateral view (b, S170234; c, S175095). d–f) Holotype (S174820); seed in lateral view (d) and cut volume rendering (e, f) through the median plane of the seed showing palisade-shaped sclerenchyma cells of exotesta and remains of embryo (emb) and surrounding nutritive tissue (e, cut between yz0440-0530; f, cut between slices yz440-480). g) Hilum (hi) and micropyle (mi) of seed in (1a) showing the Y-shaped micropylar slit in the outer integument. h) Cut volume rendering through the median plane of the seed (cut at yz0492) showing seed coat mainly composed of palisade-shaped cells of the exotesta (S174435). i) Seed surface showing the raised outlines of the undulate anticlinal walls of the exotestal cells (S175045). Scale bars = 500 µm (a–e); 250 µm (g); 125 µm (f, i). in Extinct Taxa Of Exotestal Seeds Close To Austrobaileyales And Nymphaeales From The Early Cretaceous Of Portugal
Text-fig. 1. Gastonispermum portugallicum gen. et sp. nov. seeds from the Early Cretaceous Famalicão locality (sample 025), Portugal; Synchrotron radiation X-ray tomographic microscopy (SRXTM, volume renderings). Note remains of mounting media on several seeds (¤). a) Seed in oblique view showing seed shape, the slightly raised raphal ridge and the position of hilum (hi) and micropyle (mi) on the raphal side of the seed (S170218). b, c) Seeds in lateral view (b, S170234; c, S175095). d–f) Holotype (S174820); seed in lateral view (d) and cut volume rendering (e, f) through the median plane of the seed showing palisade-shaped sclerenchyma cells of exotesta and remains of embryo (emb) and surrounding nutritive tissue (e, cut between yz0440-0530; f, cut between slices yz440-480). g) Hilum (hi) and micropyle (mi) of seed in (1a) showing the Y-shaped micropylar slit in the outer integument. h) Cut volume rendering through the median plane of the seed (cut at yz0492) showing seed coat mainly composed of palisade-shaped cells of the exotesta (S174435). i) Seed surface showing the raised outlines of the undulate anticlinal walls of the exotestal cells (S175045). Scale bars = 500 µm (a–e); 250 µm (g); 125 µm (f, i).
Text-fig. 49. Scanning electron microscope (SEM, a, b) and synchrotron radiation X-ray tomographic microscopy (SRXTM, c–e) images of "Foveolate seed sp. 1"; Catefica locality, Portugal. a) Lateral view of seed showing foveolate surface; note the slightly pointed hilar-micropylar region with the preservation of a presumed secretion (arrow) from the micropyle; b) Detail of seed surface showing shallow pitting and very faint outlines of the undulate anticlinal walls of the exotestal cells; c) Longitudinal section (volume rendering cut between orthoslices yz0450 and yz0460) through the middle of the seed showing the slightly pointed hilarmicropylar region and the rounded chalazal region; note the thick exotesta of the outer integument composed of thick-walled palisade-like cells (oi); note partial preservation of large cells of the nutritive tissue (nu) and the smaller cells of the embryo (em) at the micropylar end of the seed; d, e) Longitudinal sections (d, orthoslice xz0750, e, orthoslice yz0485) through middle of the seed perpendicular to each other showing the hilar-micropylar region with the preservation of a presumed secretion from micropyle (e, arrow), thick palisade-like cells of outer integument (oi), larger cells of the nutritive tissue (nu) and remains of the smaller cells of the embryo (em). Specimen, Catefica 49-S172316 (a–e). Scale bars = 300 Μm (a, c–e), 50 Μm (b). in The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms
Text-fig. 49. Scanning electron microscope (SEM, a, b) and synchrotron radiation X-ray tomographic microscopy (SRXTM, c–e) images of "Foveolate seed sp. 1"; Catefica locality, Portugal. a) Lateral view of seed showing foveolate surface; note the slightly pointed hilar-micropylar region with the preservation of a presumed secretion (arrow) from the micropyle; b) Detail of seed surface showing shallow pitting and very faint outlines of the undulate anticlinal walls of the exotestal cells; c) Longitudinal section (volume rendering cut between orthoslices yz0450 and yz0460) through the middle of the seed showing the slightly pointed hilarmicropylar region and the rounded chalazal region; note the thick exotesta of the outer integument composed of thick-walled palisade-like cells (oi); note partial preservation of large cells of the nutritive tissue (nu) and the smaller cells of the embryo (em) at the micropylar end of the seed; d, e) Longitudinal sections (d, orthoslice xz0750, e, orthoslice yz0485) through middle of the seed perpendicular to each other showing the hilar-micropylar region with the preservation of a presumed secretion from micropyle (e, arrow), thick palisade-like cells of outer integument (oi), larger cells of the nutritive tissue (nu) and remains of the smaller cells of the embryo (em). Specimen, Catefica 49-S172316 (a–e). Scale bars = 300 Μm (a, c–e), 50 Μm (b).
Does the Volume of the Embryo Culture Medium During Embryo Transfer Affects the IVF Outcomes?
ClinicalTrials.gov study NCT03350646. IPD Sharing: Not stated. Countries: 0. Publications: 1.
ScienceDex guides
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International Brain Laboratory public data
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OpenNeuro
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