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13 results for “Cladophorales”
Brilliantia kiribatiensis, a new genus and species of Cladophorales (Chlorophyta) from the remote coral reefs of the Southern Line Islands, Pacific Ocean
<p>Data associated with the study "<em>Brilliantia kiribatiensis</em>, a new genus and species of Cladophorales (Chlorophyta) from the remote coral reefs of the Southern Line Islands, Pacific Ocean".</p> <p><strong>ITS.fasta, ITS_bmge.fasta, LSU.fasta, LSU_bmge.fasta, SSU.fasta, SSU_bmge.fasta: </strong>SSU rDNA, LSU rDNA and rDNA ITS sequences used in phylogenetic analyses. Sequences of Brilliantia kiribatiensis were added to updated phylogenetic datasets used previously (Leliaert et al. 2007a, Leliaert et al. 2009b), aligned in MAFFT v7.215 (Katoh and Standley 2013), and stripped of hypervariable sites in BMGE v1.1 (Criscuolo and Gribaldo 2010) by using the -h 0.4 -g 0.35 parameters. Alignments were visually checked and concatenated in Seaview v4.4.2.</p> <p><strong>concatenated_SSU_ITS_LSU.fasta</strong>: concatenated alignment with following partitions: SSU: 1-1797, ITS1+5.8S+ITS2: 1798-3335, LSU: 3336-3926.</p> <p><strong>Table_S1_sequence_sources.xls: </strong>GenBank accessions, sample isolate codes and sites of collection for sequences included in the concatenated phylogenetic data set.</p> <p><strong>Table S2. </strong>Percent cover of different algal groups in 1 m2 photoquadrats. Algal groups are identified to genus level for fleshy macroalgae or functional group for turf algae, branched red algae, crustose coralline algae, and cyanobacteria.</p> <p><strong>Table SX.</strong> Morphological measurements of <em>Brilliantia kiribatiensis</em>.</p>
FIG. 2 in Molecular data and culture observations show that the microfilamentous marine alga Uronema marinum Womersley is a member of the genus Okellya Leliaert & Rueness (Cladophorales, Chlorophyta)
FIG. 2. — Maximum likelihood phylogenetic tree of selected Cladophorales Haeckel, showing the position of the species Okellya marina (Womersley) Wetherbee, comb. nov. as sister to Okellya curvata (Printz) Leliaert & Rueness in the Okellyaceae Leliaert & Rueness family. Numbers shown at nodes represent RAxML rapid bootstrap values. The scale is in estimated substitutions per site in the concatenated 18S and 28S alignment.
FIG. 1 in Molecular data and culture observations show that the microfilamentous marine alga Uronema marinum Womersley is a member of the genus Okellya Leliaert & Rueness (Cladophorales, Chlorophyta)
FIG. 1. — Okellya marina (Womersley) Wetherbee, comb. nov. (strain 56a) from New South Wales: A, tuft of filaments; B, C, newly formed filaments of two and four cells attached by a discoid holdfast (asterisks), apical cells rounded; D, larger filaments occur with dense cytoplasm; E, F, filaments showing a single pyrenoid at the center of cells (arrowheads); G, H, pyrenoids stained with iodine solution (arrowheads); I-M, elongate zoospores (s) have differentiated in an intercalary cell (I) and escape from a pore at the apical end of cells (J-M: arrows); zoospores often fail to escape through the pore and germinate inside the sporangium (K-M), occasionally even forming holdfasts (asterisk in M). Scale bars: A, 50 μm; B, D-I, 10 μm; C, J-M, 20 μm.
FIGURE 4 in On a new Ercolania Trinchese, 1872 (Opisthobranchia, Sacoglossa, Limapontiidae) living within Boergesenia Feldmann, 1950 (Cladophorales), with notes on anatomy, histology and biology
FIGURE 4: Ercolania kencolesi sp. nov.: Measurements of photosynthetic activity during a period of starvation interrupted with a period of four days, where feeding on Boergesenia was allowed. A: Yield values of photosynthesis measured over time. B: Ground fluorescence of photosynthesis (F0 [mV]) measured over time. Decline of values indicates the decrease of numbers of chloroplasts. Note the increase of ground fluorescence after feeding.
FIGURE 3 in On a new Ercolania Trinchese, 1872 (Opisthobranchia, Sacoglossa, Limapontiidae) living within Boergesenia Feldmann, 1950 (Cladophorales), with notes on anatomy, histology and biology
FIGURE 3: Ercolania kencolesi sp. nov.: larval development and adult radula. A: Veliger larva (day 5), lateral view after hatching from egg mass. B: Frontal view of similar developmental stage. C: Radula of paratype. Note the two preradular teeth (arrow). Abbreviations: dgl digestive gland, e eye, op operculum, st statocyst, yo yolk.
FIGURE 2 in On a new Ercolania Trinchese, 1872 (Opisthobranchia, Sacoglossa, Limapontiidae) living within Boergesenia Feldmann, 1950 (Cladophorales), with notes on anatomy, histology and biology
FIGURE 2: Ercolania kencolesi sp. nov.: Histology of organ systems. A: Cross section in the anterior third of body. B: Cross section in anterior half of body with genital system. C: Longitudinal section of rhinophore. Note that most of the algal chloroplasts are already consumed. D: Cross section in posterior third of body. E: Prostate gland. F: Cross section of eye. Abbreviations: algl albumen gland, am ampulla, cagl capsule gland, ce ceras, dgl digestive gland, ga ganglia, glst glandular structure, go gonad, mugl mucous gland, pe penis, pha pharynx, prgl prostate gland, sugl subepithelial glands.
FIGURE 1 in On a new Ercolania Trinchese, 1872 (Opisthobranchia, Sacoglossa, Limapontiidae) living within Boergesenia Feldmann, 1950 (Cladophorales), with notes on anatomy, histology and biology
FIGURE 1: Ercolania kencolesi sp. nov.: Living animals from Lizard Island; A: Animal freshly taken out of algal tube; length about 5 mm. B: Animal starved for 4 days; length about 3 mm. C: Animal within algal tube of Boergesenia after two hours; D: Two egg masses laid after 3 days since intrusion of animal into algal tube. E: Animal and egg mass within algal tube after two days.
FIGURE 4 in Occurrence of true branches in Rhizoclonium (Cladophorales, Ulvophyceae) and the reinstatement of Rhizoclonium pachydermum Kjellman
FIGURE 4. Phylogenetic tree of the 18S rDNA sequences from Rhizoclonium genus members and relatives. The Bayesian inference (BI) posterior probabilities and bootstrap support based on maximum-likelihood (ML) analyses are shown on the nodes. Values> 0.50 are shown for BI and> 50 for ML.
FIGURE 2. Rhizoclonium pachydermum. A–B. Gross morphology. C in Occurrence of true branches in Rhizoclonium (Cladophorales, Ulvophyceae) and the reinstatement of Rhizoclonium pachydermum Kjellman
FIGURE 2. Rhizoclonium pachydermum. A–B. Gross morphology. C. Autofluorescence showing the reticulated structure of the chloroplasts. D. Gametangia, where the cell is empty after liberating the gametes through a lateral pore. The arrowhead indicates a domed pore. E. Autofluorescence showing the number of nuclei. Scale bars: A–D = 50 µm, E= 100 µm.
FIGURE 1. Rhizoclonium pachydermum. A. Entire filament. Note the long, almost unbranched filaments. B. Basal region. Note the basal branches and the holdfast. C. Long, almost unbranched filaments. D in Occurrence of true branches in Rhizoclonium (Cladophorales, Ulvophyceae) and the reinstatement of Rhizoclonium pachydermum Kjellman
FIGURE 1. Rhizoclonium pachydermum. A. Entire filament. Note the long, almost unbranched filaments. B. Basal region. Note the basal branches and the holdfast. C. Long, almost unbranched filaments. D. Showing the number of nuclei. Scale bars: A, C = 500 µm B, D = 100 µm.
FIGURE 5 in Occurrence of true branches in Rhizoclonium (Cladophorales, Ulvophyceae) and the reinstatement of Rhizoclonium pachydermum Kjellman
FIGURE 5. Phylogenetic tree of the ITS2 sequences of members of Rhizoclonium and Cladophora. The Bayesian inference (BI) posterior probabilities and bootstrap support based on maximum-likelihood (ML) analyses are shown on the nodes. Values> 0.50 are shown for BI and> 50 for ML.
FIGURE 3. A–D in Occurrence of true branches in Rhizoclonium (Cladophorales, Ulvophyceae) and the reinstatement of Rhizoclonium pachydermum Kjellman
FIGURE 3. A–D. Rhizoclonium riparium HB1302. A–B. Filament with rhizoidal cells. C. The reticulated structure of the chloroplasts. D. Autofluorescence showing the number of nuclei. E–H. Rhizoclonium hieroglyphicum HB1303. E–F. Structure of cells. G. Autofluorescence showing the reticulated structure of the chloroplasts. H. Autofluorescence showing the number of nuclei. Scale bars: A, B, D, E, G, H = 50 µm. C, F = 25 µm.
Chlorocladiella gen. nov., a new genus of Pithophoraceae (Cladophorales, Chlorophyta), including four new species from various freshwater habitats in China
<p>these three files descirbe 18S+28S rDNA alignments, 18S+28S+ITS rDNA alignments, and ITS2 secondary structure alignment respectively. </p>
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