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195 results for “Dinoflagellates”
Figure S1 in Molecular Phylogeny of the Marine Planktonic Dinoflagellate Oxytoxum and Corythodinium (Peridiniales, Dinophyceae)
Figure S1. Light micrographs of isolated cells of Oxytoxum and Corythodinium for molecular analysis.
Figs 2A–N in Molecular Phylogeny of the Marine Planktonic Dinoflagellate Oxytoxum and Corythodinium (Peridiniales, Dinophyceae)
Figs 2A–N. Light micrographs of Oxytoxum and Corythodinium from Brazil. A – Oxytoxum scolopax, isolated cell FG11. B – O. scolopax and C. tessellatum. C–D – C. tessellatum. C – Isolated cell FG9. E–H – Dividing cells of C. tessellatum. H – Isolated cell FG40. I – C. tessellatum and C. constrictum. J – Diving cells of C. constrictum. K–L – Corythodinium frenguellii. K – Isolated cell FG7. L – Isolated cell FG8. M–N – C. cristatum from the open South Atlantic Ocean, isolated cell FG28. M – The inset focuses on the antapical spine. Scale bars: 20 µm.
Figs 1A–O in Molecular Phylogeny of the Marine Planktonic Dinoflagellate Oxytoxum and Corythodinium (Peridiniales, Dinophyceae)
Figs 1A–O. Light micrographs of Oxytoxum and Corythodinium from the Mediterranean Sea. A–E – O. scolopax from Banyuls sur Mer. B–C, E, J – Epifluorescence microscopy. B, E, J – Note the autofluorescence of the chloroplasts. C – Nucleus stained by DAPI. F – Dividing cells of O. sceptrum. G–H – C. constrictum from Villefranche sur Mer. I–L – C. tessellatum from Banyuls sur Mer. K–L – Empty thecae. M – C. frenguellii from Villefranche sur Mer. N–O – C. cristatum from Villefranche sur Mer. The insets show the antapical spine. n – nucleus. Scale bars: 20 µm.
Fig. 4 in Phylogeny and Synonymy of Gyrodinium heterostriatum comb. nov. (Dinophyceae), a Common Unarmored Dinoflagellate in the World Oceans
Fig. 4. Phylogenetic tree based on LSU rRNA gene sequences, showing the position of the sequence of Gymnodinium heterostriatum/ striatissimum by Maximum Likelihood (ML). The new sequence is indicated in bold face. Numbers near branches denote ML bootstrap probability value. The geographic origin is placed between brackets. Bootstrap values <70 are omitted. Scale bar denotes 0.05 substitutions per site.
Fig. 3 in Phylogeny and Synonymy of Gyrodinium heterostriatum comb. nov. (Dinophyceae), a Common Unarmored Dinoflagellate in the World Oceans
Fig. 3. Phylogenetic tree based on SSU rRNA gene sequences, showing the position of the sequences of Gymnodinium heterostriatum/ striatissimum by Maximum Likelihood (ML). The new sequences are indicated in bold face. Numbers near branches denote ML bootstrap probability value. Bootstrap values <70 are omitted. The geographic origin is placed between brackets. Scale bar denotes 0.02 substitutions per site.
Fig. 1 in Phylogeny and Synonymy of Gyrodinium heterostriatum comb. nov. (Dinophyceae), a Common Unarmored Dinoflagellate in the World Oceans
Fig. 1. Map of the sampling stations in the North Sea during the JERICO-NEXT LifeWatch research cruise in May 2019.
Fig. 3 in Molecular Phylogeny of the Sand-dwelling Dinoflagellate Planodinium striatum and Chrysodinium gen. nov. for Plagiodinium ballux (Dinophyceae)
Fig. 3. Line drawings of the plate arrangement of Planodinium striatum (A–C), Plagiodinium belizeanum (D–F) and Chrysodinium ballux gen. nov. & comb. nov. (=Plagiodinium ballux) (G–I). Left lateral (A), right lateral (B), apical (C) views of Planodinium striatum redrawn from Hoppenrath et al. (2014). Left lateral (D), right lateral (E) and apical (F) views of Plagiodinium belizeanum redrawn from Wakeman et al. (2018). Left lateral (G), ventral (H) and apical (I) views of Chrysodinium ballux gen. & comb. nov. redrawn from Yamada et al. (2018) with a re-interpreted tabulation.
Fig. 1 in Molecular Phylogeny of the Sand-dwelling Dinoflagellate Planodinium striatum and Chrysodinium gen. nov. for Plagiodinium ballux (Dinophyceae)
Fig. 1. Light (A–M) and scanning electron microscopy (N–O) images of Planodinium striatum isolated in June 2012 at Wimereux, France. (A–B) A cell in left lateral and dorsal views. Asterisk (*) indicates the pusule. (C–M) Different views of another cell. The arrows indicate hypothecal plates. (N) Cell in ventro-left lateral view. (O) Another cell in left lateral view. The arrowheads indicate the trichocysts. The inset shows a large pore surrounded by several small pores. Scale bar = 10 μm.
Figure 3 in Distribution and abundance of dinoflagellates from the coastal waters of Karachi, Pakistan, northern part of the Arabian Sea
Figure 3. Monthly distribution of Phytoplankton and dinoflagellate species in offshore (MI-1 and MV-1) and nearshore (MI-2 and MV-2) waters along the Sindh coast of Pakistan. Abbreviations are as: MI: Manora Island; MV: Mubarak Village.
Figure 4 in Distribution and abundance of dinoflagellates from the coastal waters of Karachi, Pakistan, northern part of the Arabian Sea
Figure 4. Principal Component analysis (PCA) of hydro-biological variables, such as, phytoplankton (Phy) and dinoflagellates (Dino) abundance, chlorophyll a (Chl a), dissolved oxygen (DO), salinity (Sal), water temperature (W.tem), pH and transparency (trans) recorded for the coastal and near-shore waters (combined data)
Fig. 1. A in New record of the cold freshwater dinoflagellate Palatinus apiculatus (Dinophyceae) from the Paldang Reservoir, Korea
Fig. 1. A map of the Paldang Reservoir, Korea. A black circle represents the sampling site. Black arrows represent direction of water flow.
Fig. 3 in New record of the cold freshwater dinoflagellate Palatinus apiculatus (Dinophyceae) from the Paldang Reservoir, Korea
Fig. 3. Scanning electron microscrope micrographs of Palatinus apiculatus isolated from the Paldang Reservoir, Korea. Plates of the theca are indicated, following to Kofoidian plate formula. A: ventral view showing sulcal region; B, C: apical view from the ventral side; D-F: dorsal view showing different wide of suture and variation of the cingular plate (v). Thick black bar in D-F represents each given length. Sa: anterior sulcal plate. Sd: right sulcal plate. Sp: posterior sulcal plate. Ss: left sulcal plate. Scale bar = 10 μm.
Fig. 2 in New record of the cold freshwater dinoflagellate Palatinus apiculatus (Dinophyceae) from the Paldang Reservoir, Korea
Fig. 2. Vegetative cells (A, C) and temporary cysts (B, D) of the Korean Palatinus apiculatus isolated from the Paldang Reservoir. An arrowhead represents an eyespot. Cell size is proportional to a given scale bar (10 μm).
Fig. 4. A maximum likelihood tree constructed from a 28S in New record of the cold freshwater dinoflagellate Palatinus apiculatus (Dinophyceae) from the Paldang Reservoir, Korea
Fig. 4. A maximum likelihood tree constructed from a 28S rDNA dataset of the Korean Palatinus apiculatus and other freshwater dinoflagellates. A total of 5,000 replicates were run for bootstrap analyses. Members of the genus Palatinus are highlighted in orange. The isolate from this study and its GenBank No. are given in bold font.
Fig. 6 in Dinoflagellate Cysts Stratigraphy And Palynofacies Of Oligocene Sequences In The Northern Eastern Carpathians
Fig. 6 In a palynological slide under natural light and blue-light fluorescence, the representative palynofacies from the Lower Menilite and Bituminous Marls formations. Scale bar: 30 μm. a - abundant granular AOM with brown color in association with EPS (black arrow, tiny filaments forming an alveolar network), coccoid bodies (bacteria or algae, white arrow), gelified AOM (red arrow) and palynomorphs (blue arrow). The color and abundance of AOM suggest a dysoxic–anoxic environment (P174); b - idem previous image (blue-light fluorescence), AOM exhibits weak fluorescence; c – brown granular AOM (P178); d - idem previous image (blue-light fluorescence), AOM shows a patchy fluorescence.
Fig. 5 in Dinoflagellate Cysts Stratigraphy And Palynofacies Of Oligocene Sequences In The Northern Eastern Carpathians
Fig. 5 Relative abundances of particulate organic matter from the analyzed samples (percentage calculated to Total Sedimentary Organic Matter).
Fig. 1 in Dinoflagellate Cysts Stratigraphy And Palynofacies Of Oligocene Sequences In The Northern Eastern Carpathians
Fig. 1 Geological and tectonic sketch map of the Gura Humorului-Frasin area (after Ionesi, 1971, simplified), with the location of the geological cross-section studied.
Fig. 8 in Dinoflagellate Cysts Stratigraphy And Palynofacies Of Oligocene Sequences In The Northern Eastern Carpathians
Fig. 8 The representative palynofacies from the Bituminous Marls, Lower Dysodilic Shale and Kliwa Sandstone formations. Scale bar: 30 μm. a - abundant AOM (granular and gelified; Bituminous Marls Fm., sample P178) with dark brown color. Granular AOM (blue arrow), gelified AOM (red arrow); b - granular AOM with a light-brown color (black arrow), EPS (red arrow) mixed with continental organic particles such as translucent phytoclasts (yellow arrow), gelified AOM (blue arrow) and palynomorphs (green arrow) (Lower Dysodilic Shale Fm., sample P180); c - brown woody tissue large in size (blue arrow), in association with continental palynomorphs (green arrow) and other terrestrial organic particles (Kliwa Sandstone Fm., sample P185).
Fig. 7 in Dinoflagellate Cysts Stratigraphy And Palynofacies Of Oligocene Sequences In The Northern Eastern Carpathians
Fig. 7. Ternary kerogen plots (Tyson, 1995) for the Lower Menilite Formation up to Kliwa Sandstone Formation, with inferred depositional environments.
Fig. 4 in Dinoflagellate Cysts Stratigraphy And Palynofacies Of Oligocene Sequences In The Northern Eastern Carpathians
Fig. 4 Range chart of the dinoflagellate cysts used in this study. Correlation with previously published dinocyst zonations within Germany (Köthe & Piesker, 2007), the North Sea Basin (Schiøler, 2005), Austria (Soliman, 2012), Italy (Pross et al., 2010), Belgium (Van Simaeys et al., 2005), Northwest Europe (Powell, 1992) and Poland (Barski & Bojanowski, 2010) are shown. Dinocyst biozones and bioevents according to Powell & Brinkhuis (in Vandenberghe et al., 2012).
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OpenNeuro
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