Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
53
datasets available to search
ShareScore release 0.9.0
Dataset results
53 results for “Marchantia”
Stacks of microCT Scans, Cell size, weight, volume and thallus size data supporting the paper 'Mechanical regulation of tissue flatness in Marchantia'
<div> <div> <div> <p>These data are the supporting elements to the following paper: 'Mechanical regulation of tissue flatness in Marchantia'</p> </div> </div> </div> <p> .tif files contain MicroCT (MCT) scans of 16-day-old <em>Marchantia polymorpha</em> thalli. Three genotypes were analysed here: <strong><em>fer-2</em></strong> mutant (from Mecchia et al., 2022), <strong>FER-OE #9</strong> (proMpEF1::MpFERONIA-mCitrine trangenic line 9)<strong> </strong>from Mecchia et al., 2022), and Tak-1 (WT line). These plants were grown in 3 different media: Gamborgh B5 + vitamins and 0.6, 1.2 and 2.5% agar, and one stress condition consisting of the adjunction of a thin PDMS film at 4, to mimich external mechanical stimulus (only performed on thalli grown on 1.2% agar).</p> <p>MicroCT scans were performed at the faculity of odontology of Université Paris-Cité (Plateform imagerie du vivant) with the technical support of Lotfi Slimani and Baptiste Casel. https://piv.u-paris.fr/micro-ct-haute-resolution/ </p> <p>All files already have embeded scales.</p> <p>Each file name consists of a unique ID number in the following form:</p> <p>P+<LETTER>+<NUMBER>-<CONDITION></p> <p>-LETTER: One letter = one imaging session</p> <p>-NUMBER: Individual and Genotype: 33-40 -> Tak1; 200-207-><em>fer-2</em>; 41-49 -> FER-OE</p> <p>-CONDITION : AGAR0.6/AGAR2.5/PDMS. Absence of condition indicates growth on standard medium (1.2% agar). PDMS indicated growth on standard medium and supplementation of a topping PDMS film at day 4)</p> <p> </p> <p>-Volume data were calculated from MicroCT scans</p> <p>-thallus projected surfaces were calculated from MicroCT scans</p> <p><a href="https://zenodo.org/api/records/13981438/draft/files/Lambda%20curvature%20calculation.ipynb/content" target="_blank" rel="noopener noreferrer">-Lambda curvature calculation.ipynb</a> is suited for MorphographX mesh exported .txt files.</p> <p> </p> <p> </p> <p> </p>
Stiffness transitions in new walls post-cell division differ between Marchantia polymorpha gemmae and Arabidopsis thaliana leaves
<p>Plant morphogenesis is governed by the mechanics of the cell wall–a stiff and thin polymeric box that encloses the cells. The cell wall is a highly dynamic composite material. New cell walls are added during cell division. As the cells continue to grow, the properties of cell walls are modulated to undergo significant changes in shape and size without breakage. Spatial and temporal variations in cell wall mechanical properties have been observed. However, how they<br> relate to cell division remains an outstanding question. Here we combine time-lapse imaging with local mechanical measurements via atomic force microscopy to systematically map the cell wall’s age and growth, with their stiffness. We make use of two systems, <em>M. polymorpha</em> gemmae, and <em>A. thaliana</em> leaves. We first characterise the growth and cell division of <em>M. polymorpha</em> gemmae. We then demonstrate that cell division in <em>M. polymorpha</em> gemmae results in<br> the generation of a temporary stiffer and slower growing new wall. In contrast, this transient phenomenon is absent in <em>A. thaliana</em> leaves. We provide evidence that this different temporal behaviour has a direct impact on the local cell geometry via changes in the junction angle. These results are expected to pave the way for developing more realistic plant morphogenetic models and to advance the study into the impact of cell division on tissue growth.</p>
Data from: Extensive epigenetic reprogramming during the life cycle of Marchantia polymorpha
<p>This GFF contains M. polymorpha genes (taken from the official release v3.1, Phytozome 11, phytozome.jgi.doe.gov) and transposable elements and repeats identified in the study (see Materials and Methods).</p>
Fig. 4 in Arachidonic acid-dependent carbon-eight volatile synthesis from wounded liverwort (Marchantia polymorpha)
Fig. 4. Effect of incubation after tissue-disruption on the amounts of endogenous volatiles. Volatiles were extracted with methyl tert-butyl ether from intact thalli (lower chromatogram) or from freeze–thaw treated thalli (upper chromatogram), and analyzed using GC–MS. Inset shows the enlarged chromatogram from 15.8 to 18.4 min. C15 sesquiterpenoids with the chemical formulas C15H24 (m/z 204, with peaks k to p) and C15H26O (m/z 222, with the peaks q and r) were tentatively identified based on their MS profiles (Supplemental Fig. S2).
Fig. 6 in Arachidonic acid-dependent carbon-eight volatile synthesis from wounded liverwort (Marchantia polymorpha)
Fig. 6. Resolution of enantiomers of 5 formed from racemic 3. The crude enzyme extract prepared from des6KO thalli was reacted with racemic 3, and the 5 formed by enzyme catalyzed hydrolysis was subjected to chiral phase GC analysis (upper chromatogram). 5 was not detected with the reaction mixture prepared without substrate (middle chromatogram) or without enzyme (lower chromatogram).
Fig. 3 in Arachidonic acid-dependent carbon-eight volatile synthesis from wounded liverwort (Marchantia polymorpha)
Fig. 3. Time course of emission of 1 and 5 after mechanical wounding of M. polymorpha thallus grown in a field. Average ± s.e. (n = 6) is shown. Different letters for each compound refer to significant differences (ANOVA, Bonferroni, P <0.01).
Fig. 5 in Arachidonic acid-dependent carbon-eight volatile synthesis from wounded liverwort (Marchantia polymorpha)
Fig. 5. Effect of incubation after tissue disruption on C8 volatile formation. The thalli were frozen and the volatiles were extracted (white bars), or the frozen thalli were thawed, and incubated for 5 min at 24 °C to facilitate the enzyme reaction (gray bar). Average ± s.e. (n = 4) is shown. Asterisks indicate significant differences for the noted compound (Student's t-test, ⁄⁄⁄P <0.001).
Fig. 8 in Arachidonic acid-dependent carbon-eight volatile synthesis from wounded liverwort (Marchantia polymorpha)
Fig. 8. Effect of addition of NAD(P)H on the C8 volatiles emitted from M. polymorpha thalli. C8 volatiles extracted from intact (white bars), partially wounded (50%, gray bars), totally disrupted (black bars), totally disrupted in the presence of NADH (coarse stripe), and totally disrupted M. polymorpha thalli in the presence of NADPH (dense stripe) were quantified. The average ± s.e. (n = 4–5) is shown. Different letters for each compound refer to significant differences (one way ANOVA, Fisher, P <0.05).
FIGURE 0. Marchantia polymorpha L in Thalloid Liverworts (Marchantiopsida) of Sri Lanka
FIGURE 0. Marchantia polymorpha L. (A) Dorsal surface of thallus (B, C) Epidermal pores, surface view (D) Laminal scale (E) Appendage of laminal scale (F, G) Median scales (H & I) Archegoniophores (J) Margin of the gemma cup (K) A lobe of gemma cup A–G, J, K Ruklani & Rubasinghe 58-14SR (PDA); H–I Ruklani & Rubasinghe 360-15SR (PDA).
FIGURE. Marchantia emarginata Reinw., Blume & Nees (A) Dorsal surface of thallus (B, C) Epidermal pores from the dorsal epidermis of thallus (D) Laminal scale (E) Median scale (F) Appendage of laminal scale (G) Margin of the gemma cup. A–G Ruklani & Rubasinghe 169-14SR (PDA). in Thalloid Liverworts (Marchantiopsida) of Sri Lanka
FIGURE. Marchantia emarginata Reinw., Blume & Nees (A) Dorsal surface of thallus (B, C) Epidermal pores from the dorsal epidermis of thallus (D) Laminal scale (E) Median scale (F) Appendage of laminal scale (G) Margin of the gemma cup. A–G Ruklani & Rubasinghe 169-14SR (PDA).
FIGURE. Morphology of Marchantia species of Sri Lanka. (A) Yellowish green, robust thallus of M. acaulis with a distinct dark median band and dark purplish margin (B) Light green thallus of M. paleacea without a distinct median band (C) Thallus of M. papillata with a distinct black coloured median band (D) Pale green coloured thallus of M. pappeana without a distinct median band (E) Dark green thallus of M. polymorpha (F) Green coloured thallus of M. emarginata with a blackish median band. A—Ruklani & Rubasinghe 108-14SR; B—Ruklani & Rubasinghe 14-14SR; C—Ruklani & Rubasinghe 28-14SR; D—Ruklani & Rubasinghe 55-14SR; E—Ruklani & Rubasinghe 360-15SR; F—Ruklani & Rubasinghe 169-14SR. in Thalloid Liverworts (Marchantiopsida) of Sri Lanka
FIGURE. Morphology of Marchantia species of Sri Lanka. (A) Yellowish green, robust thallus of M. acaulis with a distinct dark median band and dark purplish margin (B) Light green thallus of M. paleacea without a distinct median band (C) Thallus of M. papillata with a distinct black coloured median band (D) Pale green coloured thallus of M. pappeana without a distinct median band (E) Dark green thallus of M. polymorpha (F) Green coloured thallus of M. emarginata with a blackish median band. A—Ruklani & Rubasinghe 108-14SR; B—Ruklani & Rubasinghe 14-14SR; C—Ruklani & Rubasinghe 28-14SR; D—Ruklani & Rubasinghe 55-14SR; E—Ruklani & Rubasinghe 360-15SR; F—Ruklani & Rubasinghe 169-14SR.
FIGURE. Morphology of ventral scales of Sri Lankan Marchantia sp. I (A) Light red laminal scale of M. acaulis (B) Yellowish median scale of M. acaulis boarded by light red to purple cells (C) Laminal scale of M. papillata (D) Purplish coloured median scale of M. papillata (E) Light red coloured laminal scale of M. emarginata with hyaline apical papillae (F) Median scale of M. emarginata. A— Ruklani & Rubasinghe 108-14SR; B—Ruklani & Rubasinghe 108-14SR; C—Ruklani & Rubasinghe 04-14SR; D—Ruklani & Rubasinghe 04-14SR; E—Ruklani & Rubasinghe 169-14SR; F—Ruklani & Rubasinghe 169-14SR. in Thalloid Liverworts (Marchantiopsida) of Sri Lanka
FIGURE. Morphology of ventral scales of Sri Lankan Marchantia sp. I (A) Light red laminal scale of M. acaulis (B) Yellowish median scale of M. acaulis boarded by light red to purple cells (C) Laminal scale of M. papillata (D) Purplish coloured median scale of M. papillata (E) Light red coloured laminal scale of M. emarginata with hyaline apical papillae (F) Median scale of M. emarginata. A— Ruklani & Rubasinghe 108-14SR; B—Ruklani & Rubasinghe 108-14SR; C—Ruklani & Rubasinghe 04-14SR; D—Ruklani & Rubasinghe 04-14SR; E—Ruklani & Rubasinghe 169-14SR; F—Ruklani & Rubasinghe 169-14SR.
FIGURE. Marchantia papillata Raddi. subsp. grossibarba (Steph.) Bischl. (A) Dorsal surface of thallus (B & C) Epidermal pores, surface view (D) Cross section of epidermal pore (E) Laminal scale (F) Median scale (G & H) Appendages of laminal scales (I & J) Male receptacles (K) Archegoniophore (L & M) Female receptacles (N) Cross section of archegoniophore stalk (O) Light microscope view of spore. A–D, F, G, H, K, L, M, N Ruklani & Rubasinghe 04-14SR (PDA); E—Ruklani & Rubasinghe 14-14SR (PDA); I–J Ruklani & Rubasinghe 28-14 SR(PDA); O—Ruklani & Rubasinghe 415-16SR (PDA). in Thalloid Liverworts (Marchantiopsida) of Sri Lanka
FIGURE. Marchantia papillata Raddi. subsp. grossibarba (Steph.) Bischl. (A) Dorsal surface of thallus (B & C) Epidermal pores, surface view (D) Cross section of epidermal pore (E) Laminal scale (F) Median scale (G & H) Appendages of laminal scales (I & J) Male receptacles (K) Archegoniophore (L & M) Female receptacles (N) Cross section of archegoniophore stalk (O) Light microscope view of spore. A–D, F, G, H, K, L, M, N Ruklani & Rubasinghe 04-14SR (PDA); E—Ruklani & Rubasinghe 14-14SR (PDA); I–J Ruklani & Rubasinghe 28-14 SR(PDA); O—Ruklani & Rubasinghe 415-16SR (PDA).
FIGURE. Morphology of ventral scales of Sri Lankan Marchantia sp. II. (A) Light pink laminal scale of M. paleacea (B) Hyaline and pink median scale of M. paleacea (C) Laminal scale of M. pappeana (D) Median scale of M. pappeana (A–B, Ruklani & Rubasinghe 04- 14SR; C–D, Ruklani & Rubasinghe 55-14SR) in Thalloid Liverworts (Marchantiopsida) of Sri Lanka
FIGURE. Morphology of ventral scales of Sri Lankan Marchantia sp. II. (A) Light pink laminal scale of M. paleacea (B) Hyaline and pink median scale of M. paleacea (C) Laminal scale of M. pappeana (D) Median scale of M. pappeana (A–B, Ruklani & Rubasinghe 04- 14SR; C–D, Ruklani & Rubasinghe 55-14SR)
FIGURE. Marchantia acaulis Steph. (A) Dorsal surface of thallus (B) Archegoniophores (C) Female receptacle (D & E) Epidermal pores from the dorsal epidermis of the thallus (F) Laminal scale (G) Median scale (H) Appendage of laminal scale (I) Margin of the gemma cup. Ruklani & Rubasinghe 108-14SR (PDA). in Thalloid Liverworts (Marchantiopsida) of Sri Lanka
FIGURE. Marchantia acaulis Steph. (A) Dorsal surface of thallus (B) Archegoniophores (C) Female receptacle (D & E) Epidermal pores from the dorsal epidermis of the thallus (F) Laminal scale (G) Median scale (H) Appendage of laminal scale (I) Margin of the gemma cup. Ruklani & Rubasinghe 108-14SR (PDA).
FIGURE 1 in Nomenclature notes and synonymy of four Marchantia L. (Marchantiaceae, Marchantiophyta) species in Asia
FIGURE 1. Margin of appendages of ventral median scales. A. Marchantia fauriana from Faurie 1923 (holotype, G); B. M. vaginata from Faurie 263 (lectotype, G); C. M. polymorpha subsp. ruderalis from Bischler & Boisselier 90169 (isotype, G). Arrows indicate unicellular tooth.
FIGURE 1 in Range extension of Marchantia formosana (Marchantiaceae, Marchantiophyta), with an updated key to Marchantiaceae taxa in East Asia
FIGURE 1. Marchantia formosana Horik. (A) Thallus. (B–G) Appendages of median scales. (H) Cross section of air chamber. (I) Ventral median scales. (J–M) Inner opening of air pores. (N) Section of thallus. (O, P) Cupule margin. (Q, R) Female receptacles. (S–V) Scales of female receptacle. (W) Section of archegoniophore stalk. All from D. G. Long 35201.
FIGURE 2 in Range extension of Marchantia formosana (Marchantiaceae, Marchantiophyta), with an updated key to Marchantiaceae taxa in East Asia
FIGURE 2. Appendages of median scales. [A, B from Y. Horikawa 9117 (holotype, HIRO). C from Y. Horikawa 9293 (paratype, HIRO). D–J from D. G. Long 35201].
Fig. 9 in Arachidonic acid-dependent carbon-eight volatile synthesis from wounded liverwort (Marchantia polymorpha)
Fig. 9. Proposed biosynthetic pathway to form C8 volatiles in M. polymorpha thalli.
Fig. 1. Structures for compounds 1–5 in Arachidonic acid-dependent carbon-eight volatile synthesis from wounded liverwort (Marchantia polymorpha)
Fig. 1. Structures for compounds 1–5.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.