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135 results for “Microalgae”
FIG. 8. — A, B in The culture collection of cyanobacteria and microalgae at the French National Museum of Natural History: a century old but still alive and kicking! Including in memoriam: Professor Alain Couté
FIG. 8. — A, B, Staurastrum polytrichum (MNHN-ALCP-2019-823.2), solitary cells with very deep median constriction (isthmus) dividing the cell into two semicells or hemisomates. SEM images show triangular semicells in apical view with straight sides, broadly rounded angles and many inframarginal spines (sp). Cell surface ornemented with pores. C, D, Cosmarium connatum (MNHN-ALCP-2019-832.1), solitary cells, lateral view with a barely marked isthmus (i) and smooth cell wall with pores. E, F, Synura petersenii (MNHN-ALCP-2019-877.3), colony and scales morphology. SEM images show rows of silica scales around individual cells. Scales with well-developed thorns (t). Ribs (r) running from the thorn to the scale perimeter up to the outer rim. G, H, Micrasterias furcata (MNHN-ALCP-2019-821.5), solitary cells, deeply constricted and dorsiventrally compressed. Semicells dissected into a polar lobe (p) divided into the second order. Lateral lobes (l) themselves divides into second and third order (or many times) ending with two simple spines (s). A, C, E, G: light microscopy; B, D, F, H: SEM micrographs. Scale bars: A, C, E, G, 20 µm; B, D, F, H, 10 µm.
FIG. 9 in The culture collection of cyanobacteria and microalgae at the French National Museum of Natural History: a century old but still alive and kicking! Including in memoriam: Professor Alain Couté
FIG. 9. — Example of morphological diversity among eukaryotic algae strains from ALCP collection: A, Centronella reicheltii (MNHN-ALCP-2020-884.1); B, Euglena gracilis (MNHN-ALCP-0000-006.3); C, Gymnodinium sp. (MNHN-ALCP-2019-879.1); D, Synura petersenii (MNHN-ALCP-2019-877.3); E, Chlorobotrys sp. (MNHN-ALCP-0000-003.1); F, Porphyridium purpureum (MNHN-ALCP-0000-100.2); G, Stigeoclonium sp. (MNHN-ALCP-2019-854.1); H, Oedogonium sp. (MNHN-ALCP-2019-867.1); I, Gonium formosum (MNHN-ALCP-2019-819.1); J, Haematococcus pluvialis (MNHN-ALCP-2019-876.1); K, Kirchneriella lunaris (MNHN-ALCP-0000-073.1); L, Monoraphidium sp. (MNHN-ALCP-2019-822.1); M, Dictyosphaerium pulchellum (MNHN-ALCP-2019-865.1); N, Picocystis salinarum (MNHN-ALCP-2018-144.1); O, Staurastrum sp. (MNHN-ALCP-2019-836.1); P, Spirogyra sp. (MNHN-ALCP-2019-858.1). Scale bars: 20 μm.
FIG. 11 in The culture collection of cyanobacteria and microalgae at the French National Museum of Natural History: a century old but still alive and kicking! Including in memoriam: Professor Alain Couté
FIG. 11. — An "algaegraphie" by the artist Lia Giraud representing one co-author, Claude Yéprémian (curator from 2007 to 2019).
Figure 2 in Effect of untreated and pretreated sugarcane molasses on growth performance of Haematococcus pluvialis microalgae in inorganic fertilizer and macrophyte extract culture media
Figure 2. Cell density and growth rate of Haematococcus pluvialis in two different culture media NPK and ME, in mixotrophic cultivation untreated (UN) and pretreated (PR) sugarcane molasses. Error bars express standard mean deviations.
Figure 3 in Effect of untreated and pretreated sugarcane molasses on growth performance of Haematococcus pluvialis microalgae in inorganic fertilizer and macrophyte extract culture media
Figure 3. Protein (P), lipids (L), carbon (C) and nitrogen (N) (% biomass dry weight) of Haematococcus pluvialis growth in two different culture media (NPK and ME) in mixotrophic cultivation untreated (UN) and pretreated (PR) sugarcane molasses.
Figure 5 in Phenolic compound and fatty acid properties of some microalgae species isolated from Erbil City
Figure 5. Scatterplot matrix shows the correlation between palmitic acid, stearic acid, oleic acid and linoleic acid in a- Spirogyra sp. b- Spirulina sp. c- Chara sp. d- Chlorella sp.
Figure 3 in Phenolic compound and fatty acid properties of some microalgae species isolated from Erbil City
Figure 3. The distribution of DPPH and total phenol shows the same across categories of Treatment, Independent-Samples KruskalWallis Test and rejects the hypothesis on the base of Null Hypothesis with highly significant levels. A- Spirogyra sp., b-Spirulina sp. c- Chlorell sp. a d- Chara sp.
Figure 1 in Phenolic compound and fatty acid properties of some microalgae species isolated from Erbil City
Figure 1. Morphology of Algal genera isolated from Erbil City (a-Spirogyra, b-Spirulina, C-Chlorella d- Chara).
Dataset - Nutrient Removal from Agricultural Run-off in demonstrative full scale tubular photobioreactors for microalgae growth
<p>The data set attached consists of different files of the software SIGMAPLOT where the data from the article “Nutrient Removal from Agricultural Run-off in demonstrative full scale tubular photobioreactors for microalgae growth<strong>”</strong>, published in Ecological Engineering (vol. 120, 17<sup>th</sup> July 2018, 513-521.) can be found, as well as the different equations and formulae that were used to obtain the published results.</p>
Dataset - Start-up of a microalgae-based treatment system within the biorefinery concept: from wastewater to bioproducts
<p>The data set attached consists of one excel file where the data from the article “<strong>Start-up of a microalgae-based treatment system within the biorefinery concept: from wastewater to bioproducts</strong><strong>”</strong>, published in Water Science and Technology ( vol. 78(1-2), August 2018, 114-124. ), can be found. The data is scarce, as it is an introductory article to the plant design and objectives.</p>
Fig. 3 in Efeitos da depleção de nitrogênio sobre a biomassa e produção lipídica de três espécies de microalgas
Fig. 3. Curvas de crescimento das culturas de Chlorella vulgaris submetidas a diferentes concentrações de nitrato de sódio (C0 = Controle; C1 = 40%; C2 = 20%).
Figure 6 in Toxicity effects of copper on two species of marine diatoms microalgae and two species of dinoflagellates
Figure 6. Dynamics of organic carbon content, C (a), the Fv/Fm value (b) and the relative electronic transport rate, rETR on 3-ed day (c) in L. fissa at different copper ions concentrations: 1 – control, 2 – 3 µg·L-1, 3 – 5 µg·L-1, 4 – 10 µg·L-1, 5 – 50 µg·L-1, 6 – 100 µg·L-1, 7 – 200 µg· L-1. The average values of ± standard deviation are presented.
Figure 4 in Toxicity effects of copper on two species of marine diatoms microalgae and two species of dinoflagellates
Figure 4. Dynamics of organic carbon content, C (a, b), Fv/Fm (c) and relative electron transport rate, rETR on 3-ed day (d) in C. pelagica culture at different copper ions concentrations in small celled culture (a, c, d): 1 – control, 2 – 10 µg·L-1, 3 – 100 µg·L-1, 4 – 200 µg.L-1, 5 – 400 µg.L-1, 6 – 600 µg.L-1 and in large cell culture (b): 1 – control, 2 – 1 µg·L-1, 3 – 3 µg·L-1, 4 – 5 µg·L-1, 5 – 10 µg·L-1, 6 – 50 µg·L-1. The average values of ± standard deviation are presented.
Figure 2 in Toxicity effects of copper on two species of marine diatoms microalgae and two species of dinoflagellates
Figure 2. Relationship between microalgae optical density and organic carbon content (mg C· L-1) at a wavelength of 750 nm (OD750) in cultures: a – P. tricornutum, b – C. pelagica, c – P. nanum, d – L. fissa.
Figure 1 in Toxicity effects of copper on two species of marine diatoms microalgae and two species of dinoflagellates
Figure 1. View of microalgae cells under a light microscope: a – C. pelagica, b – P. tricornutum, c – L. fissa, d – P. nanum. The total magnification of the system is 400 times.
Figure 3 in Toxicity effects of copper on two species of marine diatoms microalgae and two species of dinoflagellates
Figure 3. Dynamics of organic carbon content, C (a, b), Fv/Fm (c, d) and the relative electronic transport rate, rETR on the 3rd day (e, f) in P. tricornutum at different copper ions concentrations: 1 – control, 2 – 1 µg·L-1, 3 – 5 µg·L-1, 4 – 10 µg·L-1, 5 – 50 µg·L-1, 6 – 100 µg·L-1, 7 – 200 µg·L-1; a, c, e – initial biomass of the culture is 0.2 mg C L-1, b, d, f – 1.0 mg C·L-1. The average values of ± standard deviation are presented.
Figure 5 in Toxicity effects of copper on two species of marine diatoms microalgae and two species of dinoflagellates
Figure 5. Dynamics of organic carbon content, C (a, b), Fv/Fm value (c, d) and relative electronic transport rate, rETR on 3-ed day (e, f) in P. nanum with an initial biomass of 0.5 mg C·L-1 (a, c, e) at copper ions concentrations: 1 – control, 2 – 1 µg·L-1, 3 – 3 µg·L-1, 4 – 5 µg·L-1, 5 – 10 µg·L-1, 6 – 50 µg· L-1, 7 – 100 µg·L-1 and with an initial biomass of 1.5 mg C.L-1 (b, d, f) at copper concentrations: 1 – control, 2 – 10 µg·L-1, 3 – 40 µg·L-1, 4 – 60 µg·L-1, 5 – 100 µg·L-1, 6 – 200 µg·L-1. The average values of ± standard deviation are presented.
Linked collectors and determiners for: Culture Collection of Microalgae and Zygnematophyceae Collection Hamburg (MZCH-SVCK).
Natural history specimen data linked to collectors and determiners held within, "Culture Collection of Microalgae and Zygnematophyceae Collection Hamburg (MZCH-SVCK)". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/d44f84b0-e947-11e2-961f-00145eb45e9a">https://bionomia.net/dataset/d44f84b0-e947-11e2-961f-00145eb45e9a</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/d44f84b0-e947-11e2-961f-00145eb45e9a">https://gbif.org/dataset/d44f84b0-e947-11e2-961f-00145eb45e9a</a>. Formatted as a Frictionless Data package.
Acceptable loss: Fitness consequences of salinity-induced cell death in a halotolerant microalga
<p>Environmentally induced reductions in fitness components (survival, fecundity) are generally considered as passive, maladaptive responses to stress. However, there is also mounting evidence for active, programmed forms of environmentally induced cell death in unicellular organisms. While conceptual work has questioned how such programmed cell death (PCD) might be maintained by natural selection, few experimental studies have investigated how PCD influences genetic differences in longer-term fitness across environments. Here, we tracked the population dynamics of two closely related strains of the halotolerant microalga <em>Dunaliella salina</em>, following transfers across salinities. We showed that after a salinity rise, only one of these strains displayed a massive population decline (-69% in one hour), largely attenuated by exposure to a PCD inhibitor. However, this decline was followed by a rapid demographic rebound, characterized by faster growth than the non-declining strain, such that sharper decline was correlated with faster subsequent growth across experiments and conditions. Strikingly, the decline was more pronounced in conditions more favourable to growth (more light, more nutrients, less competition), further suggesting that it was not simply passive. We explored several hypotheses that could explain this decline-rebound pattern, which suggests that <span>successive stresses could select for </span>higher environmentally induced death in this system<span>.</span></p>
FIG. 3 in Trebouxia maresiae sp. nov. (Trebouxiophyceae, Chlorophyta), a new lichenized species of microalga found in coastal environments
FIG. 3. — Ultrastructure of Trebouxia maresiae Garrido-Benavent, Chiva & Barreno, sp. nov. by TEM: A, B, cultured cells; C-F, cells within lichen thallus; F, detail of a pyrenoid. White arrowheads in D, E and F indicate the tubules in pyrenoid periphery that are more similar to these which characterize the gigantea-type pyrenoid. Abbreviations: Chl, chloroplast; CW, cell wall; Pg, pyrenoglobuli; Py, pyrenoid; Tu, tubules; Nu, nucleus; s, starch granules. Scale bars: 2 µm.
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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.