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65 results for “Trebouxiophyceae”
FIG. 2 in Morphological and phylogenetic data confirm the identity of Prasiola fluviatilis (Prasiolales, Trebouxiophyceae) from glacier streams in the Tianshan Mountains, China
FIG. 2.— Morphology of Prasiola fluviatilis (Sommerfelt) Areschoug ex Lagerstedt: A, B, thalli; C, D, vegetative cells; E, F, cells in the lower part of the blade; G, cells in the upper portion of the thallus; H, uniseriate branches. Scale bars: A, B, 1 cm; C, D, 100 µm; E-H, 20 µm.
FIG. 1 in Morphological and phylogenetic data confirm the identity of Prasiola fluviatilis (Prasiolales, Trebouxiophyceae) from glacier streams in the Tianshan Mountains, China
FIG. 1. — Habitat of Prasiola fluviatilis (Sommerfelt) Areschoug ex Lagerstedt: A, streams under a glacier; B, population of P. fluviatilis.
FIG. 5 in Morphological and phylogenetic data confirm the identity of Prasiola fluviatilis (Prasiolales, Trebouxiophyceae) from glacier streams in the Tianshan Mountains, China
FIG. 5.— Global distribution of Prasiola fluviatilis (Sommerfelt) Areschoug ex Lagerstedt (blue: glacier area [GLIMS and NSIDC 2005, updated 2019]; Ϙ, occurrence records based on morphology; Δ, occurrence records based on morphology and molecular evidence)
Figs 268-281 in Oocystis lacustris CHOD. (Chlorophyta, Trebouxiophyceae) in Lake Tanganyika (Africa)
Figs 268-281: Solitary cells and colonies of Oocystis lacustris CHODAT from Lake Tanganyika after iodine staining. Scale bar – 5 μm.
Figs 245-267 in Oocystis lacustris CHOD. (Chlorophyta, Trebouxiophyceae) in Lake Tanganyika (Africa)
Figs 245-267: Four-celled colonies and autosporangia of Oocystis lacustris CHODAT from Lake Tanganyika. Scale bar – 10 μm.
Figs 175-188 in Oocystis lacustris CHOD. (Chlorophyta, Trebouxiophyceae) in Lake Tanganyika (Africa)
Figs 175-188: Two-celled colonies of Oocystis lacustris CHODAT from Lake Tanganyika. Scale bar – 5 μm.
Figs 208-244 in Oocystis lacustris CHOD. (Chlorophyta, Trebouxiophyceae) in Lake Tanganyika (Africa)
Figs 208-244: Four-celled colonies and autosporangia of Oocystis lacustris CHODAT from Lake Tanganyika. Scale bar – 10 μm.
Figs 189-200 in Oocystis lacustris CHOD. (Chlorophyta, Trebouxiophyceae) in Lake Tanganyika (Africa)
Figs 189-200: Colonies and autosporangia with 2, 3 and 4 cells of Oocystis lacustris CHODAT from Lake Tanganyika. Scale bar – 5 μm.
Figs 201-207 in Oocystis lacustris CHOD. (Chlorophyta, Trebouxiophyceae) in Lake Tanganyika (Africa)
Figs 201-207: Three-celled and compound colonies and autosporangia of Oocystis lacustris CHODAT from Lake Tanganyika. Scale bar – 10 μm.
Figs 133-174 in Oocystis lacustris CHOD. (Chlorophyta, Trebouxiophyceae) in Lake Tanganyika (Africa)
Figs 133-174: Two-celled colonies and autosporangia of Oocystis lacustris CHODAT from Lake Tanganyika. Scale bar – 10 μm.
Figs 113-132 in Oocystis lacustris CHOD. (Chlorophyta, Trebouxiophyceae) in Lake Tanganyika (Africa)
Figs 113-132: Solitary cells and autospores of Oocystis lacustris CHODAT from Lake Tanganyika. Scale bar – 10 μm.
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.
FIG. 2 in Trebouxia maresiae sp. nov. (Trebouxiophyceae, Chlorophyta), a new lichenized species of microalga found in coastal environments
FIG. 2. — Habitat and morphology of Trebouxia maresiae Garrido-Benavent, Chiva & Barreno, sp. nov.: A, a thallus of the lichen Seirophora villosa (Ach.) FrÖdén from Es Trenc (Mallorca) with which this microalga associates; orange discs are apothecia produced by the lichen fungus to reproduce sexually; B-H, light microscopy photographs showing the gross morphology of vegetative cells and autosporangia; B, H, young and mature cells; C, central, crenulate chloroplast with a single pyrenoid; D, old cell with carotenoids in the cytoplasm; E-G, development of autosporangia and autospores; I-K, reconstruction of chloroplasts by LSCM; K, crenulate chloroplast with three pyrenoids (white arrowheads); L, reconstructed chloroplast of autospores within an autosporangium. Scale bars: 10 µm.
FIG. 1 in Trebouxia maresiae sp. nov. (Trebouxiophyceae, Chlorophyta), a new lichenized species of microalga found in coastal environments
FIG. 1. — Phylogram showing the placement of the new species in a subclade of Trebouxia Puymaly clade A sensu Muggia et al. (2020). The phylogeny was built with MrBayes based on a three-locus dataset (nrITS, 5.8S and rbcL). For reference, green- and orange-filled boxes on the right of each tip indicate the species code of each Trebouxia species following Muggia et al. (2020). To the right, the voucher or culture collection code, as well as the name of the species, if any, are provided. Posterior Probabilities (PP) and bootstrap support values (BS, RAxML-NG analysis) are represented on branches leading to nodes on the left and right, respectively. Branches in bold had a significant statistical support (PP ≥ 0.95; BS ≥ 70 %).
Morphological and phylogenetic data confirm the identity of Prasiola fluviatilis (Prasiolales, Trebouxiophyceae) from glacier streams in the Tianshan Mountains, China
<p>rbcL and tufA alignments used for the phylogenetic analyses.</p> <p>Genbank accession numbers of new sequences of Prasiola fluviatilis voucher XJ20170806: MT846163 (rbcL), MT846164 (<em>tuf</em>A).</p> <p>Samples deposited in the herbarium of the Laboratory of Algae and Environment, Biology Department, Shanghai Normal University (SHTU), Shanghai, China.</p> <p>Abstract of publication: The green alga <em>Prasiola fluviatilis</em> (Sommerfelt) Areschoug ex Lagerstedt occurs in cold lotic environments. The species has a mainly circumarctic distribution, but has also been reported from glacier areas in lower latitude regions in both hemispheres. It was reported from China on a single occasion in the first half of the 20<sup>th</sup> century, but without description, illustrations or voucher specimens the identity of this record cannot be verified. Here we confirm the presence of <em>P. fluviatilis</em> in the Tianshan Mountains, Xinjiang Province, China based on morphological features, habitat characteristics, and plastid <em>rbc</em>L and <em>tuf</em>A gene sequences. The biogeographic distribution of <em>P. fluviatilis</em> and its phylogenetic relationship with other terrestrial and freshwater <em>Prasiola</em> species are discussed.</p>
Figs 72-76 in Oocystis lacustris CHOD. (Chlorophyta, Trebouxiophyceae) in Lake Tanganyika (Africa)
Figs 72-76: Oocystis lacustris CHODAT from Lake Tanganyika: Scale bar: 10 μm (original).
Fig. 6 ITS2 in Species delimitation polyphasic approach reveals Meyerella similis sp. nov.: a new species of "small green balls" within the Chlorella-clade (Trebouxiophyceae, Chlorophyta)
Fig. 6 ITS2 secondary structure of strains ACSSI 346, ACSSI 362, and ACSSI 363 and strains of Meyerella planktonica. CBC in ITS2 secondary structure of the studied strains compared to M. planktonica are denoted by black arrows
Fig. 5 ITS1 in Species delimitation polyphasic approach reveals Meyerella similis sp. nov.: a new species of "small green balls" within the Chlorella-clade (Trebouxiophyceae, Chlorophyta)
Fig. 5 ITS1 secondary structure of strains ACSSI 346, ACSSI 362, and ACSSI 363 and strains of Meyerella planktonica. CBC in ITS1 secondary structure of the studied strains compared to M. planktonica are denoted by black arrows
Fig.3 a A in Species delimitation polyphasic approach reveals Meyerella similis sp. nov.: a new species of "small green balls" within the Chlorella-clade (Trebouxiophyceae, Chlorophyta)
Fig.3 a A rooted ultrametric phylogenetic tree of Chlorella-clade green microalgae, constructed by the Bayes inference (BI), based on the 18S– ITS1–5.8S–ITS2 sequences (2650 bp). As statistical support for the nodes of the tree, a posterior probabilities (PP) and bootstrap values (BP), respectively, are indicated; the values of PP<0.7 and BP <70% are not shown. The model of nucleotide substitutions: GTR +I+ G4. Note: stud-
Fig. 2 in Species delimitation polyphasic approach reveals Meyerella similis sp. nov.: a new species of "small green balls" within the Chlorella-clade (Trebouxiophyceae, Chlorophyta)
Fig. 2 Cellular ultrastructure of strain ACSSI 346. a Young vegetative cell with trilaminar cell wall (long black arrows), large nucleus (N), parietal chloroplast (C), and small mitochondrion (transparent arrowhead). b Just divided two cells with developed cell walls and the surrounding mother wall (small black arrows); note the Golgi tanks
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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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.