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Text-fig. 5. SRXTM images of Miranthus elegans gen. et sp. nov.; Mira locality, Portugal. a, b: Transverse sections of flower (a, orthoslice xy0665 close to the apex of placenta; b, orthoslice xy0800 in middle part of placenta) showing remains of calyx with distinct bundles (arrows), ovary wall (ow) and numerous ovules (ov) on the central mushroom-shaped globose placenta (pl) with central column (cc). c: Transverse section of flower (orthoslice xy0620) through perianth and ovary (ow) at a level above the placenta showing ovules (ov) and cellular preservation of the sepal bundles (arrows shown for one sepal); note abaxial surface of sepals with thick-walled epidermal cells, thick cuticle, and fine pointed verrucae. d: Longitudinal section of flower (orthoslice xz0500) showing perigynous position of calyx and semi-inferior ovary (ow, ovary wall) with a central placenta (pl), central column (cc) and numerous ovules (ov); note spiny verrucae on abaxial surface of calyx lobes. Specimens, Mira 100-S153145 (a, b), Mira 100-S170155 (c, d, holotype). Scale bars = 600 µm (a–d). in Early Flowers Of Primuloid Ericales From The Late Cretaceous Of Portugal And Their Ecological And Phytogeographic Implications
Text-fig. 5. SRXTM images of Miranthus elegans gen. et sp. nov.; Mira locality, Portugal. a, b: Transverse sections of flower (a, orthoslice xy0665 close to the apex of placenta; b, orthoslice xy0800 in middle part of placenta) showing remains of calyx with distinct bundles (arrows), ovary wall (ow) and numerous ovules (ov) on the central mushroom-shaped globose placenta (pl) with central column (cc). c: Transverse section of flower (orthoslice xy0620) through perianth and ovary (ow) at a level above the placenta showing ovules (ov) and cellular preservation of the sepal bundles (arrows shown for one sepal); note abaxial surface of sepals with thick-walled epidermal cells, thick cuticle, and fine pointed verrucae. d: Longitudinal section of flower (orthoslice xz0500) showing perigynous position of calyx and semi-inferior ovary (ow, ovary wall) with a central placenta (pl), central column (cc) and numerous ovules (ov); note spiny verrucae on abaxial surface of calyx lobes. Specimens, Mira 100-S153145 (a, b), Mira 100-S170155 (c, d, holotype). Scale bars = 600 µm (a–d).
Text-fig. 7. SEM (a) and SRXTM (b–e) images of Miranthus kvacekii sp. nov.; Mira locality, Portugal. a: Lateral view of flower bud showing corolla lobes extending beyond calyx; note surface of pedicel, calyx and corolla with small equiaxial epidermal cells and indumentum of densely spaced, short stiff trichomes. b, c: Longitudinal sections through floral bud in two directions perpendicular to each other (a, orthoslice yz1024; b, orthoslice xz0950) showing corolla (co), calyx (ca), stamens (st) and semi-inferior ovary with thin ovary wall (ow) and central mushroom-shaped globose placenta (pl) bearing numerous ovules (ov). d, e: Transverse sections through floral bud above placenta (d, orthoslice xy0915; e, orthoslice xy1095) showing calyx (ca), corolla (co), ovary wall (ow) and ovules (ov); yellow outlines indicate the positions of anthers (d) and filaments (e); orange outlines indicate the position of three of the possible staminodes. Specimen, Mira 100-S170157 (a–e, holotype). Scale bars = 600 µm (a–c), 300 µm (d, e). in Early Flowers Of Primuloid Ericales From The Late Cretaceous Of Portugal And Their Ecological And Phytogeographic Implications
Text-fig. 7. SEM (a) and SRXTM (b–e) images of Miranthus kvacekii sp. nov.; Mira locality, Portugal. a: Lateral view of flower bud showing corolla lobes extending beyond calyx; note surface of pedicel, calyx and corolla with small equiaxial epidermal cells and indumentum of densely spaced, short stiff trichomes. b, c: Longitudinal sections through floral bud in two directions perpendicular to each other (a, orthoslice yz1024; b, orthoslice xz0950) showing corolla (co), calyx (ca), stamens (st) and semi-inferior ovary with thin ovary wall (ow) and central mushroom-shaped globose placenta (pl) bearing numerous ovules (ov). d, e: Transverse sections through floral bud above placenta (d, orthoslice xy0915; e, orthoslice xy1095) showing calyx (ca), corolla (co), ovary wall (ow) and ovules (ov); yellow outlines indicate the positions of anthers (d) and filaments (e); orange outlines indicate the position of three of the possible staminodes. Specimen, Mira 100-S170157 (a–e, holotype). Scale bars = 600 µm (a–c), 300 µm (d, e).
◂Fig. 6 Gynoecial development, fruit and seedling of C. crenata %yellow frames), C. cf. grandicalyx %blue frames) and C. sinensis %pink frames; A–F light microscopy, G–K stereo microscopy of endocarp, mesocarp removed; L–O field images; TS in horizontal orientation). A, B TS of anthetic flower %note two to three abortive ovules and strongly stained, peripheral tissue). C, D TS of anthetic flower %note two to three abortive ovules and lignifying portions of prospective mesocarp). E Young fruit %note developing endocarp and flashily pink portions of the mesocarp). F TS of postanthetic flower %note three abortive ovules and lignifying portions of prospective mesocarp). G TS of endocarp, with three developed embryos removed %note scanty endosperm). H Endocarp. J TS of endocarp. K Endocarp. L Immature fruits. M Mature fruits. N Seedlings %note short hypocotyl and long petioles of cotyledons). O Seedlings %note long hypocotyl and short petioles of cotyledons; image taken from cultivated plant, accession number 2012–0005, in the Botanical Garden Munich) %LS, longisection; TS, transverse section; ao, abortive ovule; cot, cotyledon; db, dorsal bundle; c, calyx; ec, endocarp; ens, endosperm; ex, exocarp; fr, fruit; h, hypocotyl; int, integument; lb, lateral bundle; mc, mesocarp; o, ovule; pet, petiolus; sty, style; ut, peripheral tissue; vs, ventral slit) in Observations on flower and fruit anatomy in dioecious species of Cordia (Cordiaceae, Boraginales) with evolutionary interpretations
◂Fig. 6 Gynoecial development, fruit and seedling of C. crenata %yellow frames), C. cf. grandicalyx %blue frames) and C. sinensis %pink frames; A–F light microscopy, G–K stereo microscopy of endocarp, mesocarp removed; L–O field images; TS in horizontal orientation). A, B TS of anthetic flower %note two to three abortive ovules and strongly stained, peripheral tissue). C, D TS of anthetic flower %note two to three abortive ovules and lignifying portions of prospective mesocarp). E Young fruit %note developing endocarp and flashily pink portions of the mesocarp). F TS of postanthetic flower %note three abortive ovules and lignifying portions of prospective mesocarp). G TS of endocarp, with three developed embryos removed %note scanty endosperm). H Endocarp. J TS of endocarp. K Endocarp. L Immature fruits. M Mature fruits. N Seedlings %note short hypocotyl and long petioles of cotyledons). O Seedlings %note long hypocotyl and short petioles of cotyledons; image taken from cultivated plant, accession number 2012–0005, in the Botanical Garden Munich) %LS, longisection; TS, transverse section; ao, abortive ovule; cot, cotyledon; db, dorsal bundle; c, calyx; ec, endocarp; ens, endosperm; ex, exocarp; fr, fruit; h, hypocotyl; int, integument; lb, lateral bundle; mc, mesocarp; o, ovule; pet, petiolus; sty, style; ut, peripheral tissue; vs, ventral slit)
◂Fig. 3 Gynoecium of C. crenata %yellow frames), C. cf. grandicalyx %blue frames) and C. sinensis %pink frames; A, B stack shot images; C–K light microscopy; G polarised light; TS in horizontal orientation). A, B Anthetic female flower, calyx and corolla partly removed. B LS of gynoecium. C LS of functionally female flower %note strongly stained peripheral tissue of corolla, anther and gynoecium). D LS of gynoecium. E, F TS of functionally female flower %note strongly stained, peripheral tissue). G TS of functionally female flower %note crystal deposition). H LS of ovule %note stalked embryo sac). J TS of functionally male flower with non-functional ovules. K LS of functionally male flower %style lacking, original position indicated by an asterisk) %LS, longisection; TS, transverse section; a,anther; bs, basal septum; c, calyx; car, carpel; co, corolla; db, dorsal bundles; es, embryo sac; fs, false septum; lb, lateral bundles; o, ovule; stg, stigma; sty, style; t, trichomes; tt, transmission tissue; ut, peripheral, strongly stained tissue; vb, ventral bundles; vs, ventral slit) in Observations on flower and fruit anatomy in dioecious species of Cordia (Cordiaceae, Boraginales) with evolutionary interpretations
◂Fig. 3 Gynoecium of C. crenata %yellow frames), C. cf. grandicalyx %blue frames) and C. sinensis %pink frames; A, B stack shot images; C–K light microscopy; G polarised light; TS in horizontal orientation). A, B Anthetic female flower, calyx and corolla partly removed. B LS of gynoecium. C LS of functionally female flower %note strongly stained peripheral tissue of corolla, anther and gynoecium). D LS of gynoecium. E, F TS of functionally female flower %note strongly stained, peripheral tissue). G TS of functionally female flower %note crystal deposition). H LS of ovule %note stalked embryo sac). J TS of functionally male flower with non-functional ovules. K LS of functionally male flower %style lacking, original position indicated by an asterisk) %LS, longisection; TS, transverse section; a,anther; bs, basal septum; c, calyx; car, carpel; co, corolla; db, dorsal bundles; es, embryo sac; fs, false septum; lb, lateral bundles; o, ovule; stg, stigma; sty, style; t, trichomes; tt, transmission tissue; ut, peripheral, strongly stained tissue; vb, ventral bundles; vs, ventral slit)
Text-fig. 50. Scanning electron microscope (SEM) and synchrotron radiation X-ray tomographic microscopy (SRXTM) images of a flower and mature carpels of Reyanthus lusitanicus gen. et sp. nov.; Torres Vedras locality, Portugal. a) Holotype; multicarpellate flower showing numerous carpels surrounded by remains of the androecium and perianth; note the bract subtending the flower (arrowhead); b, c) Longitudinal sections perpendicular to section in (f) (b, SRXTM orthoslice xz0461) and (c, SRXTM cut voltex xz0540-0580) showing receptacle, carpels and remains of the androecium and perianth; note prominent cavities formed by the oil cells, subtending bract (arrow) and bract subtending fragmentary bud (arrowhead); d, e) Apical (d) and lateral (e) views of gynoecium showing laterally flattened carpels and dorsi-ventrally flattened stamen or staminode (* in e); f) Longitudinal section (SRXTM orthoslice yz0405) of gynoecium showing conical receptacle and carpels with densely spaced oil cells; g, h) Mature carpel of Reyanthus lusitanicus gen. et sp. nov. showing slightly curved form, rounded apex and base that tapers toward the attachment to the receptacle; i) Surface of carpel showing embedded oil cells; j) Transverse section through three carpels showing attachment of developing ovules near the ventral sutures and oil cells in the wall just below the surface (SRXTM cut voltex xy0770-0845). Specimens TV299-S136716 (holotype; a–f), TV299-S136717 (g–j). Scale bars 300 Μm (a–d, f–h), 150 Μm (e, j), 30 Μm (i). in The Early Cretaceous Mesofossil Flora Of Torres Vedras (Ne Of Forte Da Forca), Portugal: A Palaeofloristic Analysis Of An Early Angiosperm Community
Text-fig. 50. Scanning electron microscope (SEM) and synchrotron radiation X-ray tomographic microscopy (SRXTM) images of a flower and mature carpels of Reyanthus lusitanicus gen. et sp. nov.; Torres Vedras locality, Portugal. a) Holotype; multicarpellate flower showing numerous carpels surrounded by remains of the androecium and perianth; note the bract subtending the flower (arrowhead); b, c) Longitudinal sections perpendicular to section in (f) (b, SRXTM orthoslice xz0461) and (c, SRXTM cut voltex xz0540-0580) showing receptacle, carpels and remains of the androecium and perianth; note prominent cavities formed by the oil cells, subtending bract (arrow) and bract subtending fragmentary bud (arrowhead); d, e) Apical (d) and lateral (e) views of gynoecium showing laterally flattened carpels and dorsi-ventrally flattened stamen or staminode (* in e); f) Longitudinal section (SRXTM orthoslice yz0405) of gynoecium showing conical receptacle and carpels with densely spaced oil cells; g, h) Mature carpel of Reyanthus lusitanicus gen. et sp. nov. showing slightly curved form, rounded apex and base that tapers toward the attachment to the receptacle; i) Surface of carpel showing embedded oil cells; j) Transverse section through three carpels showing attachment of developing ovules near the ventral sutures and oil cells in the wall just below the surface (SRXTM cut voltex xy0770-0845). Specimens TV299-S136716 (holotype; a–f), TV299-S136717 (g–j). Scale bars 300 Μm (a–d, f–h), 150 Μm (e, j), 30 Μm (i).
Text-fig. 43. Synchrotron radiation X-ray tomographic microscopy SRXTM images of "Tricarpellate flower sp. 2"; Catefica locality, Portugal. a) Lateral view of floral structure (volume rendering) showing the apical projection of the carpels and the semiinferior organization; b) Apical view of floral structure (volume rendering) showing the triangular shape of the hypanthial rim, the tricarpellate ovary with a single apical style; note that one locule is fully developed while the other two are collapsed; note also slits of unknown nature in the corners of the triangular hypanthial rim (arrows); c) Transverse section (orthoslice xy0712) close to the floral apex showing the locule of the one fully developed carpel with ovules borne along ventral placentae; note amorphous substance (asterisk) associated with the developing ovules that fills part of the locule space; d) Longitudinal section (orthoslice xz0858) through the locule of the one fully developed carpel showing the semi-inferior organization and ovules arranged along the full length of the carpel; note amorphous substance (asterisk) associated with the developing ovules that fills part of the locule space; e) Tangential longitudinal section (orthoslice yz1019) through the one fully developed locule, showing the densely packed ovules and the amorphous substance (asterisk) with which they are associated. Specimen, Catefica 50-S174901 (a–e). Scale bars = 300 Μm (a–e). in The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms
Text-fig. 43. Synchrotron radiation X-ray tomographic microscopy SRXTM images of "Tricarpellate flower sp. 2"; Catefica locality, Portugal. a) Lateral view of floral structure (volume rendering) showing the apical projection of the carpels and the semiinferior organization; b) Apical view of floral structure (volume rendering) showing the triangular shape of the hypanthial rim, the tricarpellate ovary with a single apical style; note that one locule is fully developed while the other two are collapsed; note also slits of unknown nature in the corners of the triangular hypanthial rim (arrows); c) Transverse section (orthoslice xy0712) close to the floral apex showing the locule of the one fully developed carpel with ovules borne along ventral placentae; note amorphous substance (asterisk) associated with the developing ovules that fills part of the locule space; d) Longitudinal section (orthoslice xz0858) through the locule of the one fully developed carpel showing the semi-inferior organization and ovules arranged along the full length of the carpel; note amorphous substance (asterisk) associated with the developing ovules that fills part of the locule space; e) Tangential longitudinal section (orthoslice yz1019) through the one fully developed locule, showing the densely packed ovules and the amorphous substance (asterisk) with which they are associated. Specimen, Catefica 50-S174901 (a–e). Scale bars = 300 Μm (a–e).
Text-fig. 44. Scanning electron microscope (SEM, a, b) and synchrotron radiation X-ray tomographic microscopy (SRXTM, c, d) images of "Hexacarpellate flower". a) Lateral view of flower showing epigynous organization with remains of tepals inserted at top of the hypanthium; b) Detail of apical part of flower showing laminar structures (arrows) that may be stamen bases, adhering to, or fused with, the tepals; c) Longitudinal section (orthoslice yz0540) of flower through the median plane showing the epigynous organization and central axis with ovules (arrows); d) Transverse section (orthoslice xy1250) through the ovary of the flower showing the hexagonal outline, the six locules and ovules (arrows) borne near the center of the gynoecium. Specimen, Catefica 153-S174313 (a–d). Scale bars = 300 Μm (a, c), 100 Μm (b, d). in The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms
Text-fig. 44. Scanning electron microscope (SEM, a, b) and synchrotron radiation X-ray tomographic microscopy (SRXTM, c, d) images of "Hexacarpellate flower". a) Lateral view of flower showing epigynous organization with remains of tepals inserted at top of the hypanthium; b) Detail of apical part of flower showing laminar structures (arrows) that may be stamen bases, adhering to, or fused with, the tepals; c) Longitudinal section (orthoslice yz0540) of flower through the median plane showing the epigynous organization and central axis with ovules (arrows); d) Transverse section (orthoslice xy1250) through the ovary of the flower showing the hexagonal outline, the six locules and ovules (arrows) borne near the center of the gynoecium. Specimen, Catefica 153-S174313 (a–d). Scale bars = 300 Μm (a, c), 100 Μm (b, d).
3D images of ovule primordia development in Zea mays - Part II
<p>This image resource describes the development of ovule primordia of <em>Zea mays</em>, in 3D and at cellular resolution. The images were segmented using ImarisCell (Bitplane, Switzerland) and annotated as described in the associated manuscript Ouedraogo et al. (2023) Frontiers in Plant Science. DOI: 10.3389/fpls.2023.1174171</p> <p><em>Zea mays</em> (B73 genotype) floret meristem and ovule primordia were stained using a cell wall and nuclear dyes, cleared using Clearsee solution (Kurihara et al., 2015), imaged using multiphoton microscopy and processed for segmentation in ImarisCell (Bitplane) as decribed in Mendocilla Sato et al., 2017. The .ims files also contains Surfaces objects for 3D rendering of specific cells or organs, used for quantitative analysis as described in the associated manuscript.</p> <p>Each file corresponds to an individual ovule primordia or floret meristem, with file names corresponding to ovule ID as described in Supplementary Dataset 1 of the associated manuscript Ouedraogo et al. (2023) Frontiers in Plant Science. DOI: 10.3389/fpls.2023.1174171</p>
3D images of ovule primordia development in Zea mays - Part I
<p>This image resource describes the development of ovule primordia of <em>Zea mays</em>, in 3D and at cellular resolution. The images were segmented using ImarisCell (Bitplane, Switzerland) and annotated as described in the associated manuscript Ouedraogo et al. (2023) Frontiers in Plant Science. DOI: 10.3389/fpls.2023.1174171</p> <p><em>Zea mays</em> (B73 genotype) floret meristem and ovule primordia were stained using a cell wall and nuclear dyes, cleared using Clearsee solution (Kurihara et al., 2015), imaged using multiphoton microscopy and processed for segmentation in ImarisCell (Bitplane) as decribed in Mendocilla Sato et al., 2017.</p> <p>Each file corresponds to an individual ovule primordia or floret meristem, with file names corresponding to ovule ID as described in Supplementary Dataset 1 of the associated manuscript Ouedraogo et al. (2023) Frontiers in Plant Science. DOI: 10.3389/fpls.2023.1174171</p> <p> </p>
3D images of ovule primordia development in Zea mays - Part III
<p>This image resource describes the development of ovule primordia of <em>Zea mays</em>, in 3D and at cellular resolution. The images were segmented using ImarisCell (Bitplane, Switzerland) and annotated as described in the associated manuscript Ouedraogo et al. (2023) Frontiers in Plant Science. DOI: 10.3389/fpls.2023.1174171</p> <p><em>Zea mays</em> (B73 genotype) floret meristems and ovule primordia were stained using cell wall and nuclear dyes, cleared using Clearsee solution (Kurihara et al., 2015), imaged using multiphoton microscopy and processed for segmentation in ImarisCell (Bitplane) as decribed in Mendocilla Sato et al., 2017. The .ims files also contains Surfaces objects for 3D rendering of specific cells or organs, used for quantitative analysis as described in the associated manuscript.</p> <p>Each file corresponds to an individual ovule primordia or floret meristem, with file names corresponding to ovule ID as described in Supplementary Dataset 1 of the associated manuscript Ouedraogo et al. (2023). Frontiers in Plant Science. DOI: 10.3389/fpls.2023.1174171</p>
Figure 11. - Fruits and galls produced by Epicephala species on Glochidionobovatum. A Fruit produced after pollination by Epicephalaobovatella (Tomogashima, Wakayama) B Gall induced on female flower by Epicephalacorruptrix (Takae, Okinawa) C Cross section of the gall induced by Epicephalacorruptrix. Arrow indicates the galled locule with feeding trace of Epicephala larva. Note that the irregularly developed ovules of the galled locule have merged indistinguishablly to septa. Scale bar 2 mm.
Figure 11. - Fruits and galls produced by Epicephala species on Glochidionobovatum. A Fruit produced after pollination by Epicephalaobovatella (Tomogashima, Wakayama) B Gall induced on female flower by Epicephalacorruptrix (Takae, Okinawa) C Cross section of the gall induced by Epicephalacorruptrix. Arrow indicates the galled locule with feeding trace of Epicephala larva. Note that the irregularly developed ovules of the galled locule have merged indistinguishablly to septa. Scale bar 2 mm.
Data from: Beyond pollen:ovule ratios: Evolutionary consequences of pollinator dependence and pollination efficiency for pollen and ovule production in angiosperms
<p><strong>Premise</strong>: The relative per‐flower production of ovules and pollen varies broadly with angiosperm mating systems, with outcrossing types commonly producing more pollen grains per ovule than selfing types. The evolutionary causes of this variation are contentious, especially the relevance of pollination risk. Resolution of this debate may have been hampered by its focus on pollen:ovule (P:O) ratios rather than on the evolution of pollen and ovule numbers per se.</p> <p><strong>Methods</strong>: Using published mean ovule and pollen counts, we analyzed associations with the proportion of removed pollen that reaches stigmas (pollen‐transfer efficiency) and differences between pollinator‐dependent and autogamous forms within and among species. Analyses involved Bayesian methods that simultaneously considered variation in pollen and ovule numbers and accounted for phylogenetic relatedness. We also assessed the utility of P:O ratios as mating‐system proxies and their association with female outcrossing rates.</p> <p><strong>Results</strong>: Median pollen number declined consistently with pollen‐transfer efficiency among species, whereas median ovule number did not. Similarly, in both intraspecific and interspecific analyses, pollinator‐dependent plants produced more pollen than autogamous plants, whereas ovule production did not differ statistically. Distributions of P:O ratios overlapped extensively for self‐incompatible and self‐compatible species and for different mating‐system classes, and P:O ratios correlated weakly with outcrossing rate.</p> <p><strong>Conclusions</strong>: Our findings demonstrate that pollinator dependence and pollination efficiency commonly influence the evolution of pollen number per flower but have more limited effects on ovule number. P:O ratios provide ambiguous, possibly misleading, information about mating systems, especially when compared among clades.</p>
Clinical Investigation To Evaluate Cerviron Ovules® in Symptomatic Vaginitis
ClinicalTrials.gov study NCT04735705. IPD Sharing: NO. Countries: 1. Publications: 1.
Oral Levonorgestrel Plus Meloxicam, IG-002 Delays Ovulation in Normal Menstruating Women by Seven Days
ClinicalTrials.gov study NCT05695352. IPD Sharing: YES. Countries: 1. Publications: 25.
The Role of Estrogen in Luteinizing Hormone Surge and Ovulation
ClinicalTrials.gov study NCT01999569. IPD Sharing: NO. Countries: 1. Publications: 7.
Recombinant Follicle Stimulating Hormone (FSH) (Gonal-f®): Use in Ovulation Induction
ClinicalTrials.gov study NCT01081626. IPD Sharing: Not stated. Countries: 3. Publications: 1.
Ovulation Induction in Women With Clomiphene Citrate Resistant PCOS
ClinicalTrials.gov study NCT01909141. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Use of High Cost Monitoring During Letrozole Ovulation Induction
ClinicalTrials.gov study NCT01279200. IPD Sharing: Not stated. Countries: 1. Publications: 7.
Nimodipine to Prevent LH Surge During Ovulation Induction: Blinded Placebo-controlled RCT
ClinicalTrials.gov study NCT01672801. IPD Sharing: NO. Countries: 1. Publications: 3.
Study to Evaluate Suppression of Ovulation and Pharmacokinetics of Medroxyprogesterone Acetate Following Administration of TV-46046 in Women With Ovulatory Cycle
ClinicalTrials.gov study NCT02817464. IPD Sharing: Not stated. Countries: 1. Publications: 1.
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Annotated Behaviour and Observability Dataset (ABODe)
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