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.
131
datasets available to search
ShareScore release 0.9.0
Dataset results
131 results for “green algae”
FIGURE 7 in Putative Ordovician green alga Krejciella reinterpreted as enteropneust hemichordate tube (Czech Republic)
FIGURE 7. Size variation of Linochitina pissotensis. Green dots = the herein studied sample. Blue squares = Cekov HJ 1 drill core, Dobrotivá Formation (Fatka et al., 1997). Red crosses = Kazín section, Letná Formation (Vodička and Fatka, 2017). Grey triangles = type material (Paris, 1981). Black triangle = holotype (Paris, 1981).
FIGURE 3 in Putative Ordovician green alga Krejciella reinterpreted as enteropneust hemichordate tube (Czech Republic)
FIGURE 3. Other material of Krejciella putzkeri Obrhel 1968. Flattened fragments of tube-shaped fossils. White arrows indicate fibres. A. External mould, ČGS JP2015a. B. ČGS JP 2016b detail of pores. C. Internal mould, ČGS JP2015b. D. Internal mould, ČGS JP2016a. E. Internal mould, ČGS JP2017.
Fig. 3. a, b. Siderocystopsis fusca, c, d. Siderocelis oblonga, e-g. Siderocelis estheriana, h, i in New records of coccoid green algae in Korea
Fig. 3. a, b. Siderocystopsis fusca, c, d. Siderocelis oblonga, e-g. Siderocelis estheriana, h, i. Pachycladella umbrina. Scale bar is 10 μm.
Fig. 1 in New records of coccoid green algae in Korea
Fig. 1. Location of sampling sites of new recorded taxa in South Korea. 1. Seogangdaegyo, Han River (37°32′03″, 126°55′18″), 2. Chukdong reservoir and fishery (36°06′34″, 126°47′57″), 3. Deokjin reservoir (35°50′55″, 127°07′15″).
Fig. 2. a-c. Fotterella tetrachlorelloides, d, e. Trochiscia naumannii, f-h. Keriochlamys styriaca, i-k in New records of coccoid green algae in Korea
Fig. 2. a-c. Fotterella tetrachlorelloides, d, e. Trochiscia naumannii, f-h. Keriochlamys styriaca, i-k. Placosphaera opaca. Scale bar is 10 μm.
Fig. 4. a-c. Pachycladella zatoriensis, d. Crucigenia mucronata, e, f in New records of coccoid green algae in Korea
Fig. 4. a-c. Pachycladella zatoriensis, d. Crucigenia mucronata, e, f. Scenedesmus sempervirens. Scale bar is 10 μm.
Fig. 5 Russoella parthica n in Dasycladalean Fossil Green Algae From The Maastrichtian-Paleocene Of Balkh Province (N Afghanistan)
Fig. 5 Russoella parthica n. sp. a-c, e-k, l (left specimen), m-n paratypes; d holotype, middle-upper Maastrichtian; a-g, equatorial to transversal sections, h-i, respectively oblique and axial sections, j-n, tangential and marginal oblique sections. o-p Terquemella sp., oblique, not centered sections, middle-upper Maastrichtian. l (right specimen), q, r Terquemella sp.; l (right specimen), oblique section; q, r, respectively axial or tangential and transversal sections, middle-upper Maastrichtian. s, t Jodotella cf sloveniaensis Deloffre & Radoičić, oblique sections, Paleocene. u, v Terquemella globularis Elliott, axial and tangential sections respectively, lower Maastrichtian. Thin sections: a-r: S4 (= BA.4250), s, t: Sh6 (= BA.4258), u, v: T13 (= BA.4244). Locality: environs of Kholm (N Afghanistan). Scale bar: a-c, e-r = same of d; v= same of u.
Fig. 2 in Dasycladalean Fossil Green Algae From The Maastrichtian-Paleocene Of Balkh Province (N Afghanistan)
Fig. 2 Stratigraphic column of the studied series cropping out 6 km SW of Kholm (Balkh province, N. Afghanistan). The asterisk specifies the horizon with Russoella parthica n.sp.
Fig. 10 a-c, e, f in Dasycladalean Fossil Green Algae From The Maastrichtian-Paleocene Of Balkh Province (N Afghanistan)
Fig. 10 a-c, e, f Cymopolia sp., a, two articles in oblique section, b, e, f, sterile specimens in oblique sections, c, fertile specimen in subtransversal section. d, g Orioporella malaviae Pia, d, oblique section of a whorl, notice the perforate calcareous wall; g, tangential section. Thin section: a-g, Sh6 (= BA.4258). Age and locality: Paleocene, environs of Kholm (N Afghanistan)
Text-fig. 3. Green alga of genus Botryococcus – curve occurrence (quantity %) and findings of quillwort microspores in Prášilské Lake (Analysed by E. Břízová). in Quillwort (Isoëtes), A Mysterious Plant From The Czech Republic
Text-fig. 3. Green alga of genus Botryococcus – curve occurrence (quantity %) and findings of quillwort microspores in Prášilské Lake (Analysed by E. Břízová).
Linked collectors and determiners for: Swiss National Databank of Green Algae (Characeae).
Natural history specimen data linked to collectors and determiners held within, "Swiss National Databank of Green Algae (Characeae)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/59f14999-c588-4272-b18a-2ef0cc9fc7b5">https://bionomia.net/dataset/59f14999-c588-4272-b18a-2ef0cc9fc7b5</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/59f14999-c588-4272-b18a-2ef0cc9fc7b5">https://gbif.org/dataset/59f14999-c588-4272-b18a-2ef0cc9fc7b5</a>. Formatted as a Frictionless Data package.
DNA metabarcoding data: Altitudinal zonation of green algae biodiversity in the French Alps
Open the record for dataset details and reuse information.
Data from: First discovery of the charophycean green alga Lychnothamnus barbatus (Charophyceae) extant in the New World
Premise of the study: Although some species of Characeae, known as stoneworts, can be found on every continent except Antarctica, many species and some genera have limited geographic distributions. The genus Lychnothamnus, represented by a single extant species L. barbatus, was known only from scattered localities in Europe and Australasia until it was recently discovered in North America. Methods: Morphological identifications were made from specimens collected in Minnesota and Wisconsin, U.S.A. DNA sequences were obtained for three plastid-encoded genes (atpB, psbC, rbcL) from seven putative Lychnothamnus samples from two states in the U.S.A. Distribution and abundance were estimated in each lake using point intercept surveys where surveyors sampled aquatic vegetation. Key results: Fourteen lakes in Wisconsin and two lakes in Minnesota, U.S.A., were found to harbor Lychnothamnus barbatus. These represent the first report of this rare charophycean extant in the New World. The North American specimens matched the morphological description for L. barbatus and were compared directly with the neotype. Phylogenetic results using three plastid-encoded genes confirmed the identification placing New World samples with those from Europe and Australasia. Our phylogenetic analyses also confirmed the sister relationship between L. barbatus and Nitellopsis obtusa. Conclusions: Because this taxon is not known for aggressive invasiveness in its native range, it may have existed in heretofore-undiscovered native populations, although the possibility that it is a recent introduction cannot be eliminated. The potential for discovery of novel lineages of green algae in even well studied regions is apparently far from exhausted.
An ulvophycean marine green alga produces large parthenogenetic isogametes as predicted by the gamete dynamics model for the evolution of anisogamy
<p>In eukaryotes, the gamete size difference between the two sexes (anisogamy) evolved from gametes of equal size in both mating types (isogamy) and is plausibly claimed to generate sexual selection in morphology and behaviour. The gamete dynamics (GD) model for anisogamy evolution combines gamete limitation and competition and predicts that, if gametes of both mating types can develop parthenogenetically (i.e. without fusing with the opposite mating type), large isogamy can evolve under gamete-limited conditions. Ulvophycean marine green algae that exhibit various gametic systems from isogamy to anisogamy are important models for testing such theories. However, in most previous papers, whether a species is isogamous or anisogamous has not been examined statistically, which leaves the above theoretical prediction untested. We reveal (i) that the gametic system of <em>Struvea okamurae</em> is large isogamy using a generalized linear mixed model (GLMM), which accounted for the variation of gamete size among individual gametophytes, and (ii) that gametes of this alga can actually develop parthenogenetically, contrary to a previous report. Habitat environments and gametic behaviour suggest that this alga might experience gamete-limited conditions. <em>S. okamurae</em> seems to produce large parthenogenetic isogametes following GD model predictions, as an adaptation to deep waters.</p>
Assemblies and alignments from a study on the phylotranscriptomic relationships of Oophila, a genus of green algae associated to amphibian egg masses
<p>Dataset for:</p> <p>Vences M, Sachs M, Irisarri I, Bartels F, Eriksson PF, Künzel S, Kurabayashi A, Laugen AT, Vegso ZT, Bishop CD, Kerney R, Arndt H. Phylotranscriptomic relationships of the Oophila clade of green algae associated to amphibian egg masses. Mol Phylogenet Evol. 2024 Aug 6:108165. doi: 10.1016/j.ympev.2024.108165. </p>
Supplementary videos of "Description of a novel extremophile green algae, Chlamydomonas pacifica, and its potential as a biotechnology host" Molino et al
<p><strong>Supplementary Video 1: </strong>Motility tracking of <em>C. pacifica</em> - (Raw_402_Video_1.mp4)</p> <p> </p> <p><strong>Supplementary Video 2: </strong>Motility tracking of <em>C. pacifica</em> - (Raw_402_Video_2.mp4)</p> <p> </p> <p><strong>Supplementary Video 3:</strong> Motility tracking of <em>C. pacifica</em> - (Raw_402_Video_3.mp4)</p> <p> </p> <p><strong>Supplementary Video 4:</strong> Motility tracking of <em>C. pacifica</em> - (TrackMate capture of Video_1_402.avi)</p> <p> </p> <p><strong>Supplementary Video 5: </strong>Motility tracking of <em>C. pacifica</em> - (TrackMate capture of Video_2_402.avi)</p> <p> </p> <p><strong>Supplementary Video 6:</strong> Motility tracking of <em>C. pacifica</em> - (TrackMate capture of Video_3_402.avi)</p> <p> </p> <p><strong>Supplementary Video 7:</strong> Mating video 1 - (Starting to aggregate 402 403.avi)</p> <p> </p> <p><strong>Supplementary Video 8:</strong> Mating video 2 - (Fusing_cell_wall_motility.avi)</p> <p> </p> <p> </p>
Terrestrial green algae show higher tolerance to dehydration than do their aquatic sister-species: Raw data and analysis files
<p>Diverse algae possess the ability to recover from extreme desiccation without forming specialized resting structures. Green algal genera such as <i>Tetradesmus</i> (Sphaeropleales, Chlorophyceae) contain temperate terrestrial, desert, and aquatic species, providing an opportunity to compare physiological traits associated with the transition to land in closely related taxa. We subjected six species from distinct habitats to three dehydration treatments varying in relative humidity (RH 5%, 65%, 80%) followed by short- and long-term rehydration. We tested the capacity of the algae to recover from dehydration using the effective quantum yield of photosystem II as a proxy for physiological activity. The degree of recovery was dependent both on the habitat of origin and the dehydration scenario, with terrestrial, but not aquatic species, recovering from dehydration. Distinct strains of each species responded similarly to dehydration and rehydration, with the exception of one aquatic strain that recovered from the mildest dehydration treatment. Cell ultrastructure was uniformly maintained in both aquatic and desert species during dehydration and rehydration, but staining with an amphiphilic styryl dye indicated damage to the plasma membrane from osmotically-induced water loss in the aquatic species. These analyses demonstrate that terrestrial <i>Tetradesmus</i> possess a vegetative desiccation tolerance phenotype, making these species ideal for comparative omics studies.</p>
Data from: First discovery of the charophycean green alga Lychnothamnus barbatus (Charophyceae) extant in the New World
Open the record for dataset details and reuse information.
Terrestrial green algae show higher tolerance to dehydration than do their aquatic sister-species: Raw data and analysis files
Open the record for dataset details and reuse information.
An ulvophycean marine green alga produces large parthenogenetic isogametes as predicted by the gamete dynamics model for the evolution of anisogamy
Open the record for dataset details and reuse information.
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.