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67 results for “Coccoids”
FIGURE 7 in A new coccoid family (Hemiptera: Coccomorpha) for an unusual species of scale insect on Podocarpus macrophyllus (Podocarpaceae) from southern China
FIGURE 7. Third-instar nymph (cyst) of female Qinococcus podocarpus Wu, sp. n. (left: dorsum; right: venter). Notes: A: antenna; B: thoracic spiracle; C: abdominal spiracle; D: flagellate seta; E: simple pore; F: multilocular pores each with 4–7 central loculi; G: spine; H: anal ring.
FIGURE 4 in A new coccoid family (Hemiptera: Coccomorpha) for an unusual species of scale insect on Podocarpus macrophyllus (Podocarpaceae) from southern China
FIGURE 4. First-instar nymph of Qinococcus podocarpus Wu, sp. n. Notes: A: antenna; B: coeloconic sensilla; C: labium; D: leg; E: claw; F: thoracic spiracle; G: abdominal spiracle; H: anus; I: cicatrice; J: multilocular pore with 3 central and outer loculi; K: multilocular pore with 1 central and 7 outer loculi; L: bilocular pore with 2 loculi; M: simple pore; N: sieve-like multilocular pore.
FIGURE 4 in Polulichloris henanensis gen. et sp. nov. (Trebouxiophyceae, Chlorophyta), a novel subaerial coccoid green alga
FIGURE 4. Phylogenetic position of Polulichloris henanensis within class Trebouxiophyceae (Chlorophyta), based on 18S rDNA + rbcL sequences. The analysis was based on reduced alignment with an outgroup formed by the chlorophycean Chlamydomonas bilatus. The tree was inferred using PAUP*4.0 with the GTR + I + G evolutionary model. Numbers at branches correspond to MrBayes posterior probabilities (BPP)/maximum likelihood (ML) bootstrap values. Values below 0.95 BPP and 50% ML bootstrap support are not shown. Scale bar shows estimated number of substitutions per site.
FIGURE 1 in Polulichloris henanensis gen. et sp. nov. (Trebouxiophyceae, Chlorophyta), a novel subaerial coccoid green alga
FIGURE 1. Morphology of Polulichloris henanensis strain FACHB-1765. A–G: young vegetative cells. H, I: mature vegetative cell. J‒O: autosporangium. P: vegetative cells and liberation of autospores. Scale bars: A‒D = 2 μm, E–P = 5 μm.
FIGURE 2 in Polulichloris henanensis gen. et sp. nov. (Trebouxiophyceae, Chlorophyta), a novel subaerial coccoid green alga
FIGURE 2. Ultrastructure of Polulichloris henanensis. C: chloroplast, P: pyrenoid, SE: starch envelope, S: starch grains. Cell of P. henanensis with a parietal and cup-shaped chloroplast, pyrenoid bisected by a few thylakoid bands, and starch envelope composed of 2–4 plates surrounding the pyrenoid. A. Young cell. B–D. Vegetative cell.
FIGURE 3 in Polulichloris henanensis gen. et sp. nov. (Trebouxiophyceae, Chlorophyta), a novel subaerial coccoid green alga
FIGURE 3. Phylogenetic position of Polulichloris henanensis within class Trebouxiophyceae (Chlorophyta), based on 18S rDNA sequences. The analysis was based on reduced alignment with an outgroup formed by the chlorophycean species Chlamdomonas rosae. The tree was inferred using PAUP*4.0 with the TrNef + I + G evolutionary model. Numbers at branches correspond to MrBayes posterior probabilities (BPP)/maximum likelihood (ML) bootstrap values. Values below 0.95 BPP and 50% ML bootstrap support are not shown. Scale bar shows estimated number of substitutions per site.
FIGURE 2 in Description of coccoid cyanoprokaryote Nisada stipitata morphogen. et sp. nov. from the supralittoral zone in the tropical Mexican Pacific
FIGURE 2. Morphology of Nisada stipitata. A. Macroscopic view of partially covered rock (black portion). B. Macroscopic view of strip of biofilm on rock. C. (tv) Pseudofilament apices in fluorescent microscopy. D. (tv) Edge of biofilm with pseudofilaments in a row. E. (tv) Apices of morph 2 before cell division (single arrow) and after division but before separation (double arrow). F. With dying filaments of Kyrthuthrix cf. maculans. G. (tv) Colonial mucilage (single arrow); apices of morphs 1 and 2 and (lv) two morphs 2 (double arrows). H. (tv) Apices of morph 1 with a few pseudofilaments in lv (arrow heads); pad of a complete pseudofilament (white arrow) and colonial mucilage (black arrow). I. (lv) Pseudofilament of morph1 with developed stipe and cups; "horns" (sheath) with synchronous growth (arrows). Daughter much larger than mother cell.J. (lv) Pseudofilament of morph 1 without pad (base of stipe, arrow). K. (lv) Pseudofilament of morph 1 showing "horns" (sheath) with asynchronous growth (arrows). L, M. Diversity of morphology of morph 1. Micrographs D–M with light microscopy. tv = top view, lv = lateral view. Scale bars: A = 1 mm, B = 200 μm, C = 25 μm, D–H, J, L = 6 μm I, K, M = 3 μm.
FIGURE 1 in Description of coccoid cyanoprokaryote Nisada stipitata morphogen. et sp. nov. from the supralittoral zone in the tropical Mexican Pacific
FIGURE 1. San Agustín Bay, state of Oaxaca, México. A. Map showing location of collection site. B. Panoramic photograph of the supralittoral zone of the site.
FIGURE 4 in Description of coccoid cyanoprokaryote Nisada stipitata morphogen. et sp. nov. from the supralittoral zone in the tropical Mexican Pacific
FIGURE 4. (lv) Line drawings of Nisada stipitata. A. Edge of biofilm with pseudofilaments in a row. B. Complete pseudofilament of morph 1. C. Complete pseudofilament of morph 2. Ps = pseudofilament sheath, dc = daughter cell, c = cup, mc = mother cell, st = stipe,
FIGURE 3 in Description of coccoid cyanoprokaryote Nisada stipitata morphogen. et sp. nov. from the supralittoral zone in the tropical Mexican Pacific
FIGURE 3. Stages of reproduction of Nisada stipitata in lateral view. A. (lv) Two pseudofilaments of morph 1 with and without cell division; perpendicular plane of division evident in left pseudofilament. B. Two-celled pseudofilament of morph 1 with beginning of perpendicular cell division of the daughter cell (top arrow); displaced basal/mother cell allowing partial view of the inside of the cup (bottom arrow). C. (lv) Two pseudofilaments of morph 1. Three-celled pseudofilament with fracture (arrow). D. (lv) Complete pseudofilament of morph 2 with division of daughter cell. E, F. Diversity of stages of the life cycle of morph 1. Pseudofilaments with all or some of the differentiated mucilaginous structures. Basal cell with incipient cup (arrow). G. (lv) Empty cups/stipes set in the colonial mucilage (arrows). H. (lv) Basal cells with different degrees of development, set in colonial mucilage. Scale bars: A–E = 3 μm, F–H = 6 μm.
FIGURE 6 in Nephrococcus serbicus, a new coccoid cyanobacterial species from Božana Cave, Serbia
FIGURE 6. CCA of cyanobacterial and algal taxa found in Božana Cave, with T, RH and LI as explanatory variables and sampling sites (S1–S8), chlorophyll-a (expressed as μg/cm2), the water content and the content of organic/inorganic matter (expressed as mg/cm2) as supplementary variables.
FIGURE 2 in Nephrococcus serbicus, a new coccoid cyanobacterial species from Božana Cave, Serbia
FIGURE 2. Nephrococcus colonies from natural material: a = 2-celled stadium with yellow-brown cells and cell envelopes; b = oval, yellow-brown cells aggregated in the centre of the colony; c = yellowish, irregularly rounded cells nearly arranged in the form of a wreath; d = olive-green to yellowish, irregularly rounded cells nearly arranged in the form of a wreath; e = blue-green kidney-shaped cells arranged in a wreath formation; f = blue-green kidney-shaped cells arranged in a wreath formation, with wreaths placed opposite one another; g, h = probably resting cells. Scale bar: 10 μm.
FIGURE 1. a in Nephrococcus serbicus, a new coccoid cyanobacterial species from Božana Cave, Serbia
FIGURE 1. a = map showing the research area (Visočka Banja, western Serbia); b = Božana Cave; c = sampling site.
FIGURE 4 in Nephrococcus serbicus, a new coccoid cyanobacterial species from Božana Cave, Serbia
FIGURE 4. CLM of Nephrococcus showing the 3D spatial organization of cells in the Nephrococcus colony, with a series of thin optical sections of the sample (a–l).
FIGURE 3 in Nephrococcus serbicus, a new coccoid cyanobacterial species from Božana Cave, Serbia
FIGURE 3. Nephrococcus colonies stained with toluidine blue (polysaccharides are stained purple): a, c = stadiums with four cells; b = stadiums with eight cells; d = cells aggregated in the centre of the colony; e, f = wreath formation.
FIGURE 5 in Nephrococcus serbicus, a new coccoid cyanobacterial species from Božana Cave, Serbia
FIGURE 5. The drawings of Nephrococcus serbicus: a = probably the resting cell; b = 2-celled stadium; c = 4-celled stadium; d = 8-celled stadium; e = many-celled stadium; f = wreath formation. Scale bar: 10 μm.
FIGURE 2 in Description of a novel coccoid cyanobacterial genus and species Sinocapsa zengkensis gen. nov. sp. nov. (Sinocapsaceae, incertae sedis), with taxonomic notes on genera in Chroococcidiopsidales
FIGURE 2. Transmission electron micrograph of a 2–month–old cultures of the cyanobacterium CHAB 6571 in liquid CT medium. (Cg, cyanophycin granule, Cw, cell wall, Nu, nucleoplasm, Sh, sheath, Th, thylakoids, Os, Outside the colony). Scale bars: A–C, 1 μm, Fig. D–F, 2 μm.
FIGURE 1 in Description of a novel coccoid cyanobacterial genus and species Sinocapsa zengkensis gen. nov. sp. nov. (Sinocapsaceae, incertae sedis), with taxonomic notes on genera in Chroococcidiopsidales
FIGURE 1. Crust samples and Light microscopy of cyanobacterial cultures CHAB 6571. A. The arrow shows the crust samples including cyanobacterium CHAB 6571 from the exposed depression of rough concrete surface. B. The colonial cyanobacterium CHAB 6571 in liquid CT medium. C. CHAB 6571 colonies of different sizes. D. Arrow shows visible chromatoplasm in unicellular cells. E–F. Indian ink background staining of unicellular cells and colonies. G. Unicellular cells of 4–month–old. H. Golden or colorless sheath with hollows of CHAB 6571. I. Colonies of 6–month–old. All scale bars: 10 μm.
FIGURE 4. Predicted secondary structure for D1–D1 in Aliterella shaanxiensis (Aliterellaceae), a new coccoid cyanobacterial species from China
FIGURE 4. Predicted secondary structure for D1–D1′ helix of 16S–23S rRNA intergenic spacer of three Aliterella strains. (a) A. antarctica CENA408T; (b) A. atlantica CENA595T; (c) A. shaanxiensis FACHB–2293.
FIGURE 3 in Aliterella shaanxiensis (Aliterellaceae), a new coccoid cyanobacterial species from China
FIGURE 3. Maximum likelihood phylogenetic tree based on 16S rRNA gene. Numbers at nodes represent bootstrap support values (BP) / posterior probabilities (PP) from maximum likelihood and Bayesian inference, respectively. Only values above 0.50 are shown. The sequences obtained in our study are shaded grey.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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