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6 results for “Trebouxia”
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 %).
Genome and annotation of microalgae Trebouxia lynnae
<p>This dataset includes:</p> <ul> <li>Genome sequence in fasta format of the symbiont lichen algae <em>Trebouxia lynnae</em></li> <li>Structural genome annotation in gff3 format</li> <li>Funcional genome annotation in tabular format</li> </ul> <p>It has been published in the paper "From spores to gametes: A sexual life cycle in a symbiotic Trebouxia microalga" in Algal Research. DOI: <a title="Persistent link using digital object identifier" href="https://doi.org/10.1016/j.algal.2024.103744" target="_blank" rel="noreferrer noopener"><span><span>https://doi.org/10.1016/j.algal.2024.103744</span></span></a></p>
Genome-wide comparisons reveal extensive divergence within the lichen photobiont genus Trebouxia
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Fig. 1 in Evidence of ancient horizontal gene transfer between fungi and the terrestrial alga Trebouxia
Fig. 1 Phylogenetic tree derived from Bayesian analysis of the alignment of the sequences from the sulfite efflux pump/telluriteresistance dicarboxylate transporter (TDT) family. Fungal sequences (Fungi) are marked in blue, green plants (Viridiplantae) in green, red algae (Rhodophyta) in red, Archaea sequences in purple, and all bacteria in black. The Trebouxia sequence is in bold text, and bolded branches are supported by posterior probability values ≥0.90 and bootstrap values ≥0.8. Triangles within the complete phylogeny indicate collapsed branches of sequences from the same species. The inset tree (b) shows the overall relationships of larger classification groups based on this tree. (The complete tree with accession and GenBank numbers for the sequences is provided in Supplement S1.)
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