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447 results for “parasitic nematode”
FIGURE 12 in Equine Strongylidae and other parasitic nematodes described by Arthur Looss during 1895-1911 in the collections of the Swedish Museum of Natural History
FIGURE 12. Drawings illustrating the variability in muscle arrangement in the female posterior end of Petrovinema poculatum (Looss, 1900) Ershov, 1943 (= Cyathostomum poculatum Looss, 1900), Cylicocyclus radiatus (Looss, 1900) Chaves, 1930 (= Cyathostomum radiatum Looss, 1900) and Cylicocyclus elongatus (Looss, 1900) Chaves, 1930 (= Cyathostomum elongatum Looss, 1900).
FIGURE 4 in Equine Strongylidae and other parasitic nematodes described by Arthur Looss during 1895-1911 in the collections of the Swedish Museum of Natural History
FIGURE 4. Strongylus vulgaris (Looss, 1900) Railliet & Henry, 1909 (= Sclerostomum vulgare Looss, 1900) male lectotype: A—anterior extremity, dorso-ventral view; B—anterior extremity, lateral view, ventral side to the left; C—posterior part of the body, lateral view, ventral side to the right.
FIGURE 17. Cyathostomum catinatum Looss, 1900 in Equine Strongylidae and other parasitic nematodes described by Arthur Looss during 1895-1911 in the collections of the Swedish Museum of Natural History
FIGURE 17. Cyathostomum catinatum Looss, 1900 lectotype male: A—anterior extremity, dorso-ventral view; B—anterior extremity, lateral view, ventral side to the right; C—anterior part of the body, dorso-ventral view; D—anterior part of the body, lateral view, ventral side to the right; E—posterior part of the body, lateral view, ventral side to the right.
FIGURE 23 in Equine Strongylidae and other parasitic nematodes described by Arthur Looss during 1895-1911 in the collections of the Swedish Museum of Natural History
FIGURE 23. Cylicocyclus elongatus (Looss, 1900) Chaves, 1930 (= Cyathostomum elongatum Looss, 1900) lectotype male: A—anterior extremity, lateral view, ventral side to the left; B—anterior extremity, dorso-ventral view; C—anterior part of the body with oesophagus, lateral view, ventral side to the left; D—anterior part of the body, dorso-ventral view; E—anterior part of the body, lateral view, ventral side to the left; F—posterior part of the body, lateral view, ventral side to the right.
FIGURE 29 in Equine Strongylidae and other parasitic nematodes described by Arthur Looss during 1895-1911 in the collections of the Swedish Museum of Natural History
FIGURE 29. Triodontophorus minor (Looss, 1900) Looss, 1902 (= Triodontus minor Looss, 1900) paralectotype female: A—anterior extremity, dorso-ventral view; B—anterior extremity, lateral view, ventral side to the right; C—anterior part of the body with oesophagus and anterior intestine, lateral view, ventral side to the right; D—anterior part of the body, dorso-ventral view; E—anterior part of the body, lateral view, ventral side to the right; F—posterior part of the body, lateral view, ventral side to the left.
FIGURE 35. Trichostrongylus vitrinus Looss, 1905 in Equine Strongylidae and other parasitic nematodes described by Arthur Looss during 1895-1911 in the collections of the Swedish Museum of Natural History
FIGURE 35. Trichostrongylus vitrinus Looss, 1905: A—pencilled sketches of a female (females?) some of which were used in preparation of Fig. 14 in Looss (1905b); B—pencilled sketches of females and males some of which were used in preparation of Fig. 13 in Looss (1905b); C—pencilled sketch of a male; D—unpublished ink drawing of female reproductive system; E—unpublished ink drawing of female; F—unpublished ink drawing of male.
FIGURE 1 in Equine Strongylidae and other parasitic nematodes described by Arthur Looss during 1895-1911 in the collections of the Swedish Museum of Natural History
FIGURE 1. Trichostrongylus colubriformis (Giles, 1892) Ransom 1911 (= Strongylus subtilis Looss, 1895): A—unpublished ink drawing of a male; B—pencilled sketches of a male (males?) some of which were used in preparation of Figs 4–5 in Looss (1905a); C—unpublished ink drawing of a female; B—pencilled sketches of a female (females?).
Figure 7 in Tarantobelus Jeffdanielsi N. Sp. (Panagrolaimomorpha; Panagrolaimidae), A Nematode Parasite Of Tarantulas
Figure 7. The ventral side of a healthy, uninfected (top) and Tarantobelus jeffdanielsi–infected (bottom) Grammostola pulchra. Photograph was taken 58 days after feeding with an infected, live cricket, preinoculated with 1,000 T. jeffdanielsi infective juveniles.
Figure 6 in Tarantobelus Jeffdanielsi N. Sp. (Panagrolaimomorpha; Panagrolaimidae), A Nematode Parasite Of Tarantulas
Figure 6. Survival curve of (A) Acheta domesticus infected with 40 (triangle) or 200 (solid circle) Tarantobelus jeffdanielsi infective juveniles (IJs); (B) Galleria mellonella infected with 40 (triangle) or 200 (solid circle) T. jeffdanielsi IJs; (C) Grammostola pulchra fed with live but infected A. domesticus preinoculated with 1,000 T. jeffdanielsi IJs (triangle), or dead A. domesticus preinoculated with 1,000 Tarantobelus jeffdanielsi IJs (solid circle).
Figure 4 in Tarantobelus Jeffdanielsi N. Sp. (Panagrolaimomorpha; Panagrolaimidae), A Nematode Parasite Of Tarantulas
Figure 4 shows the evolutionary relationships of 61 different nematodes as inferred from 18S rDNA sequences. Tarantobelus jeffdanielsi and T. arachnicida belong to the family Panagrolaimidae, Infraorder Panagrolaimomorpha (De Ley and Blaxter, 2002, 2004) with the closest relative being the vinegar eel, Turbatrix aceti AF202165.2. Furthermore, its position is corroborated by its placement in the 28S tree as a sister clade to (Medibullinae þ Tricephalobinae þ Panagrolaiminae þ Turbatricinae; Fig. 5) and confirming that it does not belong in the subfamily Brevibuccinae. Family Brevibuccidae Paramonov 1956 was considered a taxon of uncertain position (incertae sedis, De Ley and Blaxter, 2002). The 18S and 28S rDNA phylogenetic trees are not completely congruent, as the 28S rDNA tree shows Halicephalobus gingivalis and Panagrellus sp. as the closest relatives, whereas the 18S rDNA tree indicates that Turbatrix aceti is the closest relative.
Figure 4 in Tarantobelus Jeffdanielsi N. Sp. (Panagrolaimomorpha; Panagrolaimidae), A Nematode Parasite Of Tarantulas
Figure 4. Maximum-likelihood phylogenetic tree inferred from pub- lished nematode sequences and newly sequenced Tarantobelus arachnicida and Tarantobelus jeffdanielsi n. sp. based on the nuclear 18S rDNA sequences. The analysis was run with a bootstrap value of 1,000. Each family was grouped and categorized into colored boxes. Numbers at the branches represent support values for the nodes. Cartoon drawings to the right of each nematode represent the habitat that the nematode regularly occupies. Color version available on- line.
Figure 3. Tarantobelus jeffdanielsi n in Tarantobelus Jeffdanielsi N. Sp. (Panagrolaimomorpha; Panagrolaimidae), A Nematode Parasite Of Tarantulas
Figure 3. Tarantobelus jeffdanielsi n. sp. (light microscope). (A) Female reproductive system; (B–D) anterior end at lip and stoma levels; (E) neck; (F) testis flexure; (G) basal bulb (white arrow pointing at the excretory pore); (H, I) female posterior end in lateral views, respectively (black arrow pointing at the postvulval sac, and white arrow pointing at the anus); (J, K) male posterior end showing spicules and gubernaculum.
Figure 2. Tarantobelus jeffdanielsi n in Tarantobelus Jeffdanielsi N. Sp. (Panagrolaimomorpha; Panagrolaimidae), A Nematode Parasite Of Tarantulas
Figure 2. Tarantobelus jeffdanielsi n. sp. (scanning electron microscopy). (A–C) Lip region in ventral, lateral and frontal views, respectively (black arrows pointing at the amphids). (D) Excretory pore (black arrow) and deirid (white arrow). (E) Lateral field (arrows pointing at the longitudinal incisures). (F) Vulva with secretion plug, ventral view. (G) Female posterior end (white arrow pointing at the phasmid). (H, I, K) Male posterior end (black arrows pointing at the genital papillae GP and midventral papilla MP, white arrow pointing at the phasmid). (J) Cloacal aperture with opposing papilla-like processes.
Figure 5 in Tarantobelus Jeffdanielsi N. Sp. (Panagrolaimomorpha; Panagrolaimidae), A Nematode Parasite Of Tarantulas
Figure 5. Maximum likelihood phylogenetic tree inferred from pub- lished nematode sequences and newly sequenced Tarantobelus jeffdanielsi based on the nuclear 28S rDNA D2– D3 divergent domains. The analysis was run with a bootstrap value of 1,000. Each subfamily was grouped and categorized into colored boxes. Numbers at the branches represent support values for the nodes. Color version available online.
Figure 8 in Tarantobelus Jeffdanielsi N. Sp. (Panagrolaimomorpha; Panagrolaimidae), A Nematode Parasite Of Tarantulas
Figure 8. Life span (A) and fecundity (B) of Tarantobelus jeffdanielsi measured with the hanging drop technique on Nematode Growth Gelite medium seeded with Escherichia coli OP50.
Figure 1. Tarantobelus jeffdanielsi n in Tarantobelus Jeffdanielsi N. Sp. (Panagrolaimomorpha; Panagrolaimidae), A Nematode Parasite Of Tarantulas
Figure 1. Tarantobelus jeffdanielsi n. sp. (line). (A) Neck; (B) female reproductive system; (C) entire female; (D) entire male; (E); stoma; (F) male posterior; (G) female posterior.
Figure 1. Cavitary marine nematodes. A in Paraphyly of Marimermithida refines primary routes of transition to parasitism in roundworms
Figure 1. Cavitary marine nematodes. A, Marimermis maritima: 1, live specimens exposed in open host, sea urchin Strongylocentrotus polyacanthus; 2, 3, cephalic end apically and laterally, respectively, scanning electron microphotograph; pharyngeal gland outlets on lips, abundant irregular somatic setae; 4, generalized anterior ends juxtaposed in M. maritima [modified from Tchesunov (1997a)] and Thoracostomopsis barbata (Enoplida: Thoracostomopsidae) [modified from Lorenzen (1994)]. B, Aborjinia sp.: 1, juvenile occupying introvert of Priapulus caudatus (photograph courtesy of Dr A. S. Maiorova, NSCMB FEB RAS); 2, generalized anterior ends juxtaposed in Aborjinia sp. and Leptosomatum sp. (Enoplida: Leptosomatidae); 3, anterior body with two-celled ventral secretory-excretory gland, a distinctive genus feature [redrawn and modified from Miljutin (2003)]. C, Nematimermis enopliƲora: 1, two mature parasitoid individuals within host body of nematode Enoplus communis (Enoplida: Enoplidae); 2, 3, anterior body and head of immature parasitoid retrieved from body cavity of E. communis; 4, 5, anterior and tail regions of mature parasitoid from E. communis; trophosome resorbed, embryos with larval stylet inside egg cases, nested retained exuvia (old moulted cuticles) [all drawings modified from Tchesunov & Spiridonov (1993)]. (See also Fig. S1.) Key: a, amphid; emb ova, embryonated eggs; ep g, epidermal glands; ils, inner labial sensilla; ols + cs, joint crown of outer labial and cephalic setae; paras ind, parasitoid individuals; ph g, pharyngeal glands; ph t, pharyngeal tube; ss, somatic setae; stylet, spear-shaped armature; tr, trophosome; vgc, ventral gland cells.
PPND: a comprehensive genomic data platform for plant-parasitic nematode research
<p>Plant parasitic nematodes are important phytopathogens, they harm the growth of agricultural and forestry plants for a long time. Scientists have done a series of studies on them to prevent and solve the diseases that they cause. With the advent of the genomics era, genome sequencing of plant parasitic nematodes has been greatly accelerated, and a large amount of data has been generated. This study developed the Plant Parasitic Nematodes Database (http://nematode.org.cn/), a platform to bring all these data together. The PPND contains genomic, transcriptomic, protein, and functional annotation data. It allows users to conduct BLAST searches, genome browser analyses, and download bioinformatics data for deeper research. PPND will be continuously updated, and new data will be integrated. We hope that the PPND will become a comprehensive genomic data platform for plant parasitic nematode research.</p>
FIG. 28. Eudorylaimus maksymovi Altherr, female. A in FREELIVING AND PLANT PARASITIC NEMATODES FROM SPITZBERGEN, COLLECTED BY MR. H. VAN ROSSEN
FIG. 28. Eudorylaimus maksymovi Altherr, female. A: head end; B: oesophagus base; C: vulva; D: tail.
FIG. 25. Eudorylaimus megodon n in FREELIVING AND PLANT PARASITIC NEMATODES FROM SPITZBERGEN, COLLECTED BY MR. H. VAN ROSSEN
FIG. 25. Eudorylaimus megodon n.sp., female. A: head end; B: oesophagus base; C-D: vulva; E: entire specimen; F: tail.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.