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275 results for “Morpho”
FIGURE 5 in Morpho-colorimetric characterization of the perigonium of the Alstroemeria pulchra complex (Alstroemeriaceae, Alstroemerieae) as an aid to delimit its infraspecific taxa
FIGURE 5. Morpho-colorimetric variability expressed through the PC or PCO obtained in each approximation. A: CIELab colorimetry of tepals UL; vectors: influence of the variables on the PCs; B: Reflectance of tepals A; C: Color proportions of tepals I represented as histograms above the scatter plot; D: Maculae patterns of tepals I represented as heatmaps on the scatter plot. Figures in scatter plots: light color circles: A. pulchra var. pulchra; purple circles: A. pulchra var. maxima; darker squares: A. pulchra subsp. lavandulacea. Boxplots: group variability on the PCs or PCOs; box: range 25%–75%; whiskers: min-max; center line: mean; black dots: outliers.
Feeding in the Devonian antiarch placoderm fishes: a study based upon morpho-functional analysis of jaws
<p><span>Antiarch placoderm fishes were an abundant component of the Middle Paleozoic vertebrate assemblages. Despite a large number of known taxa and specimens, the morphology and function of the skeletal elements of their jaws is inadequately known. Because of this, questions regarding their feeding modes and their roles in the trophic webs remains open. We present a skeleto-muscular model of the antiarch jaw apparatus with an attempt to reconstruct its potential biomechanical function. The position of the upper jaw suborbital bones within the plane of the ventral side of the fish armor is suggested to represent the natural 'mouth closed' position. During mouth opening the suborbitals rotated rostrally with simultaneous depression and inward rotation of the infragnathals. The ball-and-socket jaw articulation might ensure this combined movement. Recently described lower jaw elements of <em>Livnolepis zadonica</em> (Obrucheva, 1983) and <em>Bothriolepis</em> sp. from the Upper Devonian (Lower Famennian) of Central Russia demonstrating very deep and porous blades of the oral division of the infragnathals attracted attention as to the structure of these bones in other antiarchs. Observed porosity reflects intense vascularization to supply blood to a connective tissue underlying a supposed keratinous sheath, which protected and strengthened the jaws, as well as made possible scraping tough food objects, such as thallus algae, from the substrate. </span></p> <p><span>Having evolved during the Silurian in the Pan-Cathaysian zoogeographical province, antiarchs migrated to Gondwana during the Emsian and later to Euramerica during the Eifelian. Supposedly, antiarchs became the first macrophytophagous vertebrates occupying the trophic level of primary consumers during the late Silurian – early Devonian. This event diversified the only previously existing predator-prey interrelationships between filter-feeding agnathans and predatory gnathostomes. </span></p>
FIGURE 8 in Redescription of the goby Glossogobius tenuiformis Fowler, 1934 (Teleostei: Gobiidae) and assignment of Oman Glossogobius populations: a morpho-molecular approach
FIGURE 8. Sensory papillae in Glossogobius tenuiformis; ZM-CBSU O002.Gt144, 36 mm SL; Oman: Wadi Shab. Lines are numbered following Akihito & Meguro (1975). Pores abbreviations are PNP: posterior nasal pores, AIO: anterior interorbital pore, PIO: posterior interorbital pore, PO: postorbital pore, IFO: infraorbital pore, LC: lateral canal pore above pre-operculum, TLC: terminal lateral canal pore, LCT: lateral canal tube detached from main lateral canal.
FIGURE 7. Glossogobius tenuiformis a, Glossogobius tenuiformis a in Redescription of the goby Glossogobius tenuiformis Fowler, 1934 (Teleostei: Gobiidae) and assignment of Oman Glossogobius populations: a morpho-molecular approach
FIGURE 7. Glossogobius tenuiformis a, Glossogobius tenuiformis a, ZM-CBSU O001.Gt101, 75 mm SL; b, ZM-CBSU O001. Gt104, 59 mm SL; c, ZM-CBSU O001.Gt102, 52 mm SL; Oman: Wadi Hasik.
FIGURE 6. Glossogobius tenuiformis a in Redescription of the goby Glossogobius tenuiformis Fowler, 1934 (Teleostei: Gobiidae) and assignment of Oman Glossogobius populations: a morpho-molecular approach
FIGURE 6. Glossogobius tenuiformis a, ZM-CBSU O001.Gt101, 75 mm SL; b, ZM-CBSU O001.Gt104, 59 mm SL; c, ZM-CBSU O001.Gt102, 52 mm SL; Oman: Wadi Hasik.
FIGURE 3 in Redescription of the goby Glossogobius tenuiformis Fowler, 1934 (Teleostei: Gobiidae) and assignment of Oman Glossogobius populations: a morpho-molecular approach
FIGURE 3. Glossogobius tenuiformis, radiograph, Holotype: ANSP 60250, 57 mm SL; South Africa: St. Lucia Lake (photo by Kyle R. Luckenbill, Academy of Natural Sciences of Drexel University, Philadelphia).
FIGURE 2 in Redescription of the goby Glossogobius tenuiformis Fowler, 1934 (Teleostei: Gobiidae) and assignment of Oman Glossogobius populations: a morpho-molecular approach
FIGURE 2. Glossogobius tenuiformis, Holotype: ANSP 60250, 57 mm SL; South Africa: St. Lucia Lake, (photo by Kyle R. Luckenbill, Academy of Natural Sciences of Drexel University, Philadelphia).
FIGURE 1 in Redescription of the goby Glossogobius tenuiformis Fowler, 1934 (Teleostei: Gobiidae) and assignment of Oman Glossogobius populations: a morpho-molecular approach
FIGURE 1. Bayesian Analysis and Maximum Likelihood phylogeny reconstructed based on 558 bp of COI 5' end. The values besides the branches before and after a slash are BI posterior and ML bootstrap probability values, respectively.
FIGURE 5. Glossogobius tenuiformis a in Redescription of the goby Glossogobius tenuiformis Fowler, 1934 (Teleostei: Gobiidae) and assignment of Oman Glossogobius populations: a morpho-molecular approach
FIGURE 5. Glossogobius tenuiformis a, ZM-CBSU O001.Gt101, 75 mm SL; b, ZM-CBSU O001.Gt104, 59 mm SL; c, ZM-CBSU O001.Gt102, 52 mm SL; Oman: Wadi Hasik.
FIGURE 2 in Characterization of the nutlet morpho-anatomical features of 12 Stachys taxa (Lamiaceae) from Turkey and its systematic practice
FIGURE 2. The micro-morphological structures of nutlets of the studied Stachys taxa; 7: S. viscosa var. viscosa, 8: S. viscosa var. odontophylla, 9: S. sivasica, 10: S. tundjeliensis, 11: S. laetivirens and 12: S. subnuda.
FIGURE 2 in Characterization of the nutlet morpho-anatomical features of 12 Stachys taxa (Lamiaceae) from Turkey and its systematic practice
FIGURE 2. The micro-morphological structures of nutlets of the studied Stachys taxa; 1: S. mardinensis, 2: S. megalodonta subsp. megalodonta, 3: S. megalodonta subsp. mardinensis, 4: S. baytopiorum, 5: S. benthamiana and 6: S. siirtensis.
FIGURE 1 in Characterization of the nutlet morpho-anatomical features of 12 Stachys taxa (Lamiaceae) from Turkey and its systematic practice
FIGURE 1. Nutlets of the studied Stachys taxa; 1: S. mardinensis, 2: S. megalodonta subsp. megalodonta, 3: S. megalodonta subsp. mardinensis, 4: S. baytopiorum, 5: S. benthamiana, 6: S. siirtensis, 7: S. viscosa var. viscosa, 8: S. viscosa var. odontophylla, 9: S. sivasica, 10: S. tundjeliensis, 11: S. laetivirens and 12: S. subnuda (The first picture is the dorsal surface, the second is the ventral surface for each taxon, Scale bars=1mm).
FIGURE 5 in Morpho-phylogenetic insights reveal Bisporella montana as Calycina montana comb. nov. (Pezizellaceae, Helotiales)
FIGURE 5. Calycina shangrilana (HMAS 275568, holotype). a A herbarium package b–c Apothecia on the woody substrate. d Cross sections of an apothecium. e Close up of hymenium at the margin. f Close up of ectal excipulum cells. g Filiform paraphyses (mounted in Congo red). h–j Asci (h, i mounted in Congo red, j mounted in Melzer's agent). k Tip of the ascus (J+, in Melzer's agent with KOH treatment). l Close up of croziers at the base of an immature ascus. m–n Ascospores (mounted in Congo red). Scale bars: b–c = 475 μm, d = 350 μm, e = 100 μm, f = 15 μm, g = 20 μm, h–j = 17 μm, k = 5 μm, l–n = 9 μm.
FIGURE 3 in Morpho-phylogenetic insights reveal Bisporella montana as Calycina montana comb. nov. (Pezizellaceae, Helotiales)
FIGURE 3. Calycina montana (MFLU 22-0055, new geographical record). a Close up of excipulum cells. b Ectal excipulum cells (b mounted in Congo Red). c Medullary excipulum cells. d–e Filiform paraphyses with refractive guttules. f–g Asci (mounted in Congo red). h Asci (alive state). i Close up of crozier. j Tip of the ascus (J+, in Melzerr's agent with KOH treatment). k–m Ascospores (m mounted in Congo red). Scale bars: a = 40 μm, b–c = 25 μm, d–h = 14 μm, i = 10 μm, j–m = 4 μm.
FIGURE 3 in Characterization of the nutlet morpho-anatomical features of 12 Stachys taxa (Lamiaceae) from Turkey and its systematic practice
FIGURE 3. The pericarp structures of nutlets of the studied Stachys taxa; 1: S. mardinensis, 2: S. megalodonta subsp. megalodonta, 3: S. megalodonta subsp. mardinensis, 4: S. baytopiorum, 5: S. benthamiana, 6: S. siirtensis, 7: S. viscosa var. viscosa, 8: S. viscosa var. odontophylla, 9: S. sivasica, 10: S. tundjeliensis, 11: S. laetivirens and 12: S. subnuda (ex= exocarp, me= mesocarp, nt= nonglandular trichome, c= crystal, en= endocarp, sr= scleranchymatic region, scale bars= 100 µm).
FIGURE 1 in Morpho-phylogenetic insights reveal Bisporella montana as Calycina montana comb. nov. (Pezizellaceae, Helotiales)
FIGURE 1. The phylogram of combined ITS and LSU sequence data for genera in Pezizellaceae. Maximum likelihood bootstrap values greater than 70% and posterior probability values greater than 0.95 given near the nodes. The new geographical record highlighted in red and type strains are in bold. The tree is rooted to Chlorencoelia torta (JAC 14068, KUSF 52256 and ICMP 21732).
FIGURE 2 in Morpho-phylogenetic insights reveal Bisporella montana as Calycina montana comb. nov. (Pezizellaceae, Helotiales)
FIGURE 2. Calycina montana (MFLU 22-0055, new geographical record). a Rotten wood substrates covered with mosses. b–c Apothecia on the substrate. d Close-up of an apothecium sectioning. e Close-up of hymenium at the margin. f Phialide cells on lower flank surface. g–h Conidiogenous cells bearing conidiospore i–j A conidiogenous cell (j Mounted in Congo red). Scale bars: b = 950 μm, c = 470 μm, d = 315 μm, e = 141 μm, f = 40 μm, g = 17 μm, h–j = 13 μm.
FIGURE 4 in Morpho-phylogenetic insights reveal Bisporella montana as Calycina montana comb. nov. (Pezizellaceae, Helotiales)
FIGURE 4. Calycina montana (HMAS 275566, holotype). a A herbarium package. b An apothecium on the woody substrate. c–d Cross sections of an apothecium (d mounted in Congo red). e Close up of hymenium at the margin. f Close up of ectal excipulum cells. g–h Filiform paraphyses (dead state). i–l Asci (k mounted in Melzer's agent, l mounted in Congo red). m Tip of the ascus (J+, in Melzer's agent with KOH treatment). n Close up of crozier at the base of an immature ascus. o–p Ascospores (o mounted in Congo red). Scale bars: b = 500 μm, c–d = 380 μm, e = 43 μm, f = 25 μm, g–h = 23 μm, i–l = 19 μm, m = 4 μm, n = 8 μm, m, o–p = 4 μm.
Morpho-functional traits of the coral Stylophora pistillata enhance light capture for photosynthesis at mesophotic depths
<p><span>The morphological architecture of photosynthetic corals modulates the light capture and functioning of the coral-algal symbiosis on shallow-water corals. Since corals can thrive on mesophotic reefs under extreme light-limited conditions, we hypothesized that microskeletal coral features enhance light capture under low-light environments. Utilizing micro-computed tomography scanning, we conducted a novel comprehensive three-dimensional (3D) assessment of small-scale skeleton morphology of the depth-generalist coral <em>Stylophora pistillata</em> collected from shallow (4-5 m) and mesophotic (45-50 m) depths. We detected a high phenotypic diversity between depths, resulting in two distinct morphotypes, with calyx diameter, theca height, and corallite marginal spacing contributing to most of the variation between depths. To determine whether such depth-specific morphotypes affect coral light capture and photosynthesis on the corallite-scale, we developed 3D simulations of light propagation and photosynthesis. We found that microstructural features of corallites from mesophotic corals provide a greater ability to use solar energy under light-limited conditions; while corals associated with shallow morphotypes avoided excess light through self-shading skeletal architectures and the results from our study suggest that skeleton morphology plays a key role in coral photoadaptation to light limited environments.</span></p>
FIGURE 12 in Morpho-anatomical and palynotaxonomic study of the genus Onobrychis Miller (Hedysareae-Fabaceae) in Pakistan, and its systematic significance
FIGURE 12. Comparative transverse sections of peduncle in Onobrychis species: (A) O. cornuta, (B) O. dealbata, (C) O. laxiflora, (D) O. micrantha, (E) O. stewartii, (F) O. tavernierifolia. Acronyms: ep—epidermis, tr—trichomes, cl—collenchyma, sb—subsidiary bundles, co—cortex, in—inner cortex, pc—pericycle, ph—phloem parenchyma, xy—xylem parenchyma, xys—xylem sclerenchyma, pi—pith.
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Allen Brain Atlas
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