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.
154
datasets available to search
ShareScore release 0.9.0
Dataset results
154 results for “cyanobacterium”
FIGURE 5. 16S rRNA Bayesian phylogeny with a in New cyanobacterium Nodosilinea svalbardensis sp. nov. (Prochlorotrichaceae, Synechococcales) isolated from alluvium in Mimer river valley of the Svalbard archipelago
FIGURE 5. 16S rRNA Bayesian phylogeny with a total of 181 sequences from order Synechococcales/Gloeobacterales, including 75 sequences from genus Nodosilinea, showing evolutionary lineage corresponds to new species Nodosilinea svalbardensis, Symbol "-" show support less than 50% on representative nodes. The type sequences of established Nodosilinea spp. are given in bold font. Taxa in the quotation mark needs to be revised.
FIGURE 2. Habitat and the substrate where Nodosilinea svalbardensis was found. A in New cyanobacterium Nodosilinea svalbardensis sp. nov. (Prochlorotrichaceae, Synechococcales) isolated from alluvium in Mimer river valley of the Svalbard archipelago
FIGURE 2. Habitat and the substrate where Nodosilinea svalbardensis was found. A. The habitat in the river valley. B. Macrocolony of Nostoc commune under which N. svalbardensis occurred.
FIGURE 3 in New cyanobacterium Nodosilinea svalbardensis sp. nov. (Prochlorotrichaceae, Synechococcales) isolated from alluvium in Mimer river valley of the Svalbard archipelago
FIGURE 3. DIC micro-photographs of Nodosilinea svalbardensis. A. Demonstration of the nodules. B. Illustration of the single false branching. C. Close up look on the peripheral thylakoids arrangement. Numbers indicate morphological features: 1—nodules, 2—granules within the cells, 3—false branching, 4—necridia.
FIGURE. 1 in New cyanobacterium Nodosilinea svalbardensis sp. nov. (Prochlorotrichaceae, Synechococcales) isolated from alluvium in Mimer river valley of the Svalbard archipelago
FIGURE. 1. Map showing sampling site (red circles) in the Svalbard archipelago. Free products of ©Norwegian Polar Institute (http:// www.npolar.no) were used to reproduce the map.
Data from: Xianella: a new mat-forming calcified cyanobacterium from the Middle–Late Ordovician of North China
Xianella hongii gen. et sp. nov. is described from the Middle–Late Ordovician of Shaanxi, China and interpreted as a calcified cyanobacterial sheath. Xianella filaments formed cable-like strands that constructed thick fenestral layers. The specimens occur in metre-sized limestone blocks, possibly derived from local collapse of a reefal platform margin. In combination with micrite, some of which is intraclastic and peloidal, Xianella created thick and extensive stacks of layered calcified fenestral fabric that appear to be synsedimentarily calcified open-frame mat deposits. The fenestrae range from small, laminose and very irregular, to large equidimensional areas ~2 cm across. Fenestrae with rounded outlines resemble primary gas bubbles observed in present-day microbial mats. These delicate fabrics are comparable in structure and quality of preservation with those of some Proterozoic silicified stromatolitic mats.
FIGURE 3 in Cyanocohniella calida gen. et sp. nov. (Cyanobacteria: Aphanizomenonaceae) a new cyanobacterium from the thermal springs from Karlovy Vary, Czech Republic
FIGURE 3. Phylogenetic position of the genus Cyanocohniella in the order Nostocales based on Bayesian analysis with 16S rRNA gene sequence data. Bootstrap support from Bayesian, maximum parsimony and maximum likelihood analysis reported above nodes respectively. Sequences generated in this study are in bold font.
FIGURE 2 in Cyanocohniella calida gen. et sp. nov. (Cyanobacteria: Aphanizomenonaceae) a new cyanobacterium from the thermal springs from Karlovy Vary, Czech Republic
FIGURE 2. Morphological variability of the type strain of Cyanocohniella calida sp. nov. A. Hormogonia (Pseudanabaena-like stadium). B. Intermediate stage between Pseudanabaena and Nostoc-like stages. C–G. Nostoc-like stage. H. Different sizes of cells in one trichome. I–J. Akinetes. K–N. Chlorogloeopsis-like stage, multiple brachning. O, P. Germination of akinetes. Scale = 5 μm
FIGURE 5. Box B and V3 in Cyanocohniella calida gen. et sp. nov. (Cyanobacteria: Aphanizomenonaceae) a new cyanobacterium from the thermal springs from Karlovy Vary, Czech Republic
FIGURE 5. Box B and V3 helices of the 16S-23S ITS for Cyanocohniella and comparison taxa (full citations to taxa and accession numbers given in legend for Fig. 4). A–G. Box B helix. H–N. V3 helix. Sequences of all comparison taxa are compared to sequence of C. calida and minimum number of mutations to achieve the C. calida sequence are given in circles above terminus of each structure. Possible substitutions (hollow circles), deletions (minus signs), and insertions (plus signs) are shown at positions in helix where they likely occurred if differences observed are explained parsimoniously through just comparison to C. calida.
FIGURE 4. D1–D1 in Cyanocohniella calida gen. et sp. nov. (Cyanobacteria: Aphanizomenonaceae) a new cyanobacterium from the thermal springs from Karlovy Vary, Czech Republic
FIGURE 4. D1–D1' helix of the 16S-23S ITS for Cyanocohniella and comparison taxa. A. Cyanocohniella calida CCALA 1049 (KJ737427). B. Dolichospermum circinale 33-10 (EF634474). C. Nodularia harveyana Hubel 1983/300 (AF367159). D. Cylindrospermum ovalisporum ILC-164 (JF768743). E. Anabaenopsis Oleksovice (KF010323), F. Camptylonemopsis sp. HA4241-MV5 (JN385292). G. Nostoc lichenoides CNP-AK1 (AY579894). Sequences of all comparison taxa are compared to sequence of Cyanocohniella calida and minimum number of mutations to achieve the C. calida sequence are given in circles above terminus of each structure. Possible substitutions (hollow circles) and insertions (plus signs) are shown at positions in helix where they likely occurred if differences observed are explained parsimoniously through just comparison to C. calida.
Fig. 3. Newman projections for C-2 in Trikoveramides A-C, cyclic depsipeptides from the marine cyanobacterium Symploca hydnoides
Fig. 3. Newman projections for C-2/C-3 of the Hmoya unit in trikoveramide A (1). Labels below projections denote predicted size of the 3J(C, H-3) and 2J(C-3,H- Me9 2) coupling constants. Predicted values highlighted by a box are consistent with observed coupling constant values. Double-headed arrows indicate NOE correlations.
Fig. 4 in Trikoveramides A-C, cyclic depsipeptides from the marine cyanobacterium Symploca hydnoides
Fig. 4. Graph showing log concentration of trikoveramides (μM) against normalised absorbance (%) for the MTT assay performed on MOLT-4 human leukemia cell line.
Fig. 1. Carbamidocyclophane A in Antitumoral potential of carbamidocyclophanes and carbamidocylindrofridin A isolated from the cyanobacterium Cylindrospermum stagnale BEA 0605B
Fig. 1. Carbamidocyclophane A (1) carbamidocyclophane F (2), carbamidocyclophane V (3) and carbamidocylindrofridin A (4).
Cultivation of the PHB-producing cyanobacterium Synechococcus leopoliensis in a pilot-scale open system using nitrogen from waste streams
Open the record for dataset details and reuse information.
Data from: Expanding the described metabolome of the marine cyanobacterium Moorea producens JHB through orthogonal natural products workflows
Open the record for dataset details and reuse information.
Data from: Xianella: a new mat-forming calcified cyanobacterium from the Middle–Late Ordovician of North China
Open the record for dataset details and reuse information.
Data from: Cyanophage propagation in the freshwater cyanobacterium Phormidium is constrained by phosphorus limitation and enhanced by elevated pCO2
Open the record for dataset details and reuse information.
Data from: Evolving interactions between diazotrophic cyanobacterium and phage mediate nitrogen release and host competitive ability
Interactions between nitrogen-fixing (i.e. diazotrophic) cyanobacteria and their viruses, cyanophages, can have large-scale ecosystem effects. These effects are mediated by temporal alterations in nutrient availability in aquatic systems owing to the release of nitrogen and carbon sources from cells lysed by phages, as well as by ecologically important changes in the diversity and fitness of cyanobacterial populations that evolve in the presence of phages. However, ecological and evolutionary feedbacks between phages and nitrogen-fixing cyanobacteria are still relative poorly understood. Here, we used an experimental evolution approach to test the effect of interactions between a common filamentous, nitrogen-fixing cyanobacterium (Nodularia sp.) and its phage on cellular nitrogen release and host properties. Ecological, community-level effects of phage-mediated nitrogen release were tested with a phytoplankton bioassay. We found that cyanobacterial nitrogen release increased significantly as a result of viral lysis, which was associated with enhanced growth of phytoplankton species in cell-free filtrates compared with phage-resistant host controls in which lysis and subsequent nutrient release did not occur after phage exposure. We also observed an ecologically important change among phage-evolved cyanobacteria with phage-resistant phenotypes, a short-filamentous morphotype with reduced buoyancy compared with the ancestral long-filamentous morphotype. Reduced buoyancy might decrease the ability of these morphotypes to compete for light compared with longer, more buoyant filaments. Together, these findings demonstrate the potential of cyanobacteria–phage interactions to affect ecosystem biogeochemical cycles and planktonic community dynamics.
Data from: Biochemical and functional analysis of Cyanobacterium Oscillatoria sp. LPS on human monocytes
Cyanobacterial blooms are an increasing source of environmental toxins that affect both human and animals. After ingestion of cyanobacteria, such as Geitlerinema sp., toxins and lipopopolysaccharide (LPS) from this organism induce fever, gastro-intestinal illness, and even death. However, little is known regarding the effects of cyanobacterial LPS on human monocytes after exposure to LPS upon ingestion. Based on our previous data using Geitlerinema sp. LPS (which was previously named Oscillatoria sp., a genus belonging to the same order as Geitlerinema), we hypothesized that Geitlerinema sp. LPS would activate human monocytes to proliferate, phagocytose particles and produce cytokines that are critical for promoting pro-inflammatory responses in the gut. Our data demonstrate that Geitlerinema sp. LPS induces monocyte proliferation and TNF-α, IL-1, and IL-6 production at high concentrations. In contrast, Geitlerinema sp. LPS is equally capable of inducing monocyte-mediated phagocytosis of FITC-Latex beads when compared to E. coli LPS, which was used as a positive control for our experiments. In order to understand the mechanism responsible for the difference in efficacy between Geitlerinema sp. LPS and E. coli LPS, we performed biochemical analysis and identified that Geitlerinema sp. LPS is comprised of significantly different sugars and fatty-acid side chains in comparison to E. coli LPS. The lipid A portion of Geitlerinema sp. LPS contains longer fatty acid side chains, such as C15:0, C16:0, and C18:0, instead of C12:0 found in E. coli LPS which may explain the decreased efficacy and toxicity of Geitlerinema sp. LPS in comparison to E. coli LPS.
Transcriptional response to long-term thermal acclimation in an ecologically relevant marine cyanobacterium of the ubiquitous Synechococcus clade II
Open the record for dataset details and reuse information.
FIGURE 1 in True branching and phenotypic plasticity in the planktonic cyanobacterium Dolichospermum brachiatum sp. nov. (Nostocales, Aphanizomenonaceae), from south-eastern Australia
FIGURE 1. Morphology of Dolichospermum brachiatum from Waranga Basin. Scale bars = 20 μm.
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.