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507 results for “symbiont”
FIGURE 3. A in Diverse endobiotic symbiont fauna from the late Katian (Late Ordovician) of Estonia
FIGURE 3. A, Cornulites sp. (Corn) and Chaetosalpinx isp. (Chaet) in Protoheliolites norvegicus from the Adila Formation, Hosholm, Vormsi Island (GIT 840-35). Note the downward-bending lamellae of Protoheliolites norvegicus in the upper half of the bioclaustration. B, Cornulites sp. in stromatoporoid from the Kõrgessaare Formation, Saxby North, Vormsi Island (GIT 529-95-2). C, Lingulate in Propora sp. from the Kõrgessaare Formation, Saxby North, Vormsi Island (GIT 520-155-2). D, Lingulate Rowellella sp. in Diplotrypa densitabulata from the Kõrgessaare Formation, Saxby North, Vormsi Island (GIT 843-15-1).
FIGURE 2 in Diverse endobiotic symbiont fauna from the late Katian (Late Ordovician) of Estonia
FIGURE 2. Stratigraphy of the upper Katian of NW Estonia. Occurrence of endobionts indicated with asterisk.
FIGURE 4 in Diverse endobiotic symbiont fauna from the late Katian (Late Ordovician) of Estonia
FIGURE 4. Chaetosalpinx-like bioclaustration in Diplotrypa densitabulata from the Kõrgessaare Formation, Saxby North, Vormsi Island (GIT 843-31). Arrows point to the bioclaustration.
Data from: A host-adapted auxotrophic gut symbiont induces mucosal immunodeficiency
<p>The microbiome holds great promise as a source of novel therapeutic targets for many diseases. Mining for causative microorganisms that impact processes underlying disease states should utilize Koch's postulates. Here we show a functional screen for the bacterial microbiota of intestinal immunoglobulin A (IgA)-deficient mice; we identified a novel Gram-negative bacterium, proposed to be named as <em>Tomasiella immunophila</em> that induces and degrades IgA in mouse intestine. <em>T. immunophila</em> is auxotrophic for the bacterial cell wall amino sugar N-acetylmuramic acid (MurNAc). <em>T. immunophila</em> secretes IgA-degrading enzymes into outer membrane vesicles that preferentially degrade rodent antibodies with kappa but not lambda light chains. We propose this study uncovers a new paradigm for the role of symbionts in immunodeficiency that can ultimately be applied to human disease.</p>
Figure 5 in New host detection of the parasitic mite, Erythraeus pistacicus (Trombidiformes: Erythraeidae) from Iran and indication of possible infection with bacterial symbionts
Figure 5. Phylogenetic tree based on 16S rRNA sequences of Cardinium, constructed by a neighbor-joining procedure. Cardinium strains are depicted by the host name. The accession numbers are shown after the host name. Numbers on the nodes indicate bootstrap percent confidence values.
Figure 2 in New host detection of the parasitic mite, Erythraeus pistacicus (Trombidiformes: Erythraeidae) from Iran and indication of possible infection with bacterial symbionts
Figure 2. Neighbor-joining tree of COI sequences of the Erythraeidae mites of the present study and the Genbank sequence data. Numbers above/below nodes represent bootstrap values.
Figure 1 in New host detection of the parasitic mite, Erythraeus pistacicus (Trombidiformes: Erythraeidae) from Iran and indication of possible infection with bacterial symbionts
Figure 1. Erythraeus (Erythraeus) pistacicus Haitlinger, Mehrnejad & Šundić, 2016 larva (Black arrow)inside the gall, feeding on the aphid, Forda hirsuta Mordvilko, 1928, on pistachio trees. June 2022, Mashhad, Northeast of Iran.
Figure 7 in New host detection of the parasitic mite, Erythraeus pistacicus (Trombidiformes: Erythraeidae) from Iran and indication of possible infection with bacterial symbionts
Figure 7. Phylogenetic relationship of Planomicrobium symbiont identified from Erythraeus (Erythraeus) pistacicus with related sequences retrieved from GenBank. The tree was constructed using neighbor-joining procedure. The sequence obtained from E. (E.) pistacicus in this study is in red box. Sequence from Bacillus subtilis was used as an
Figure 7 in Basic laboratory and field manual for conducting research with the entomopathogenic nematodes, Steinernema and Heterorhabditis, and their bacterial symbionts
Figure 7. Scanning electron microscopy images of Steinernema beitlechemi infective juvenile and female. A–D: Infective juvenile. A: Head region with four papillae, amphid openings (a) and excretory pore (ep); B: Lateral field in mid-body (ridges numbered 1–6); C: Lateral field in tail region with anus and phasmid opening (arrow); D: Tail region with anus and phasmid openings (arrows), ventral view. E, F: First generation female. E: Vulva; F: Tail with mucron (m), ventro-lateral.
Figure 6 in Basic laboratory and field manual for conducting research with the entomopathogenic nematodes, Steinernema and Heterorhabditis, and their bacterial symbionts
Figure 6. Storage of entomopathogenic nematodes in clear tissue culture flasks on the left and Tetrapak containers on the right.
Figure 3 in Basic laboratory and field manual for conducting research with the entomopathogenic nematodes, Steinernema and Heterorhabditis, and their bacterial symbionts
Figure 3. White trap system with entomopathogenic nematode-infected Galleria mellonella and Tenebrio molitor cadavers. Color change of infected cadavers is observed a few days after death. Heterorhabdid- infected cadaver generally turns red (A and C); steinernematids- infected are brown, tan or even black (C and D).
Fig. 6 in A new Middle Devonian cystoporate bryozoan from Germany containing a new symbiont bioclaustration
Fig. 6. Spionid polychaete symbionts in the Recent cheilostome bryozoan Celleporaria brunnea (Hincks, 1884), Point Loma, San Diego, California. A. Living associations showing two long palps emerging from a spionid tube (arrowed), shorter tentacles of the bryozoan and black opercula. B. Spionid palps extending above level of bryozoan lophophores. C. Scanning electron microscope of bleached colony (NHM 2010.11.30.1) showing numerous spionid worm bioclaustrations varying in shape and size but consistently larger than the bryozoan orifices and new buds. D. Scanning electron micrograph of dried, unbleached colony showing mud tube constructed by a spionid worm surrounded by calcareous tube formed by the bioclaustrating bryozoan (NHM 2010.11.30.1).
Fig. 3 in A new Middle Devonian cystoporate bryozoan from Germany containing a new symbiont bioclaustration
Fig. 3. Fistuliporid bryozoan Stellatoides muellertchensis gen. et sp. nov., Middle Devonian (Lower Givetian, Ahbach Formation) of the abandoned "Müllertchen Quarry" (Hillesheim Syncline, Eifel, Rhenish Massif, northwestern Rhineland-Palatinate, Germany). A. Paratype SMF 21.115, goblet-shaped colony, side view. B. Paratype SMF 21.110, fragment of goblet-shaped colony showing maculae.
Fig. 2 in A new Middle Devonian cystoporate bryozoan from Germany containing a new symbiont bioclaustration
Fig. 2. Lowermost Lower Givetian stratigraphy of the "Type Eifelian Profile" sensu Struve (1982); light grey: biostratigraphic distribution of fistuliporid bryozoan Stellatoides muellertchensis gen. et sp. nov.; dark grey: maximum distribution.
Fig. 1 in A new Middle Devonian cystoporate bryozoan from Germany containing a new symbiont bioclaustration
Fig. 1. Map showing location of the abandoned Müllertchen Quarry within the Hillesheim Syncline. Geological overview of the Rhenish Massif (A), showing the studied area (taken from Bohatý et al. 2012; modified from Korn 2008 after Walter 1995) and detailed view of the Eifel Synclines (B) with the fossil locality 1 (modified after Struve 1996c).
Fig. 5 in A new Middle Devonian cystoporate bryozoan from Germany containing a new symbiont bioclaustration
Fig. 5. Cylindrical embedment trace (bioclaustration) Chaetosalpinx tapanilai ichnosp. nov., Middle Devonian (Lower Givetian) of the Rhenish Massif, north-western Rhineland-Palatinate, Germany. A. Paratype SMF 21.115, colony surface of fistuliporid bryozoan Stellatoides muellertchensis gen. et sp. nov. showing tubes of C. tapanilai. B. Paratype SMF 21.122, tangential section of tubes of C. tapanilai. C. Holotype SMF 21.118, longitudinal section of a tube.
Fig. 4 in A new Middle Devonian cystoporate bryozoan from Germany containing a new symbiont bioclaustration
Fig. 4. Fistuliporid bryozoan Stellatoides muellertchensis gen. et sp. nov., Middle Devonian (Lower Givetian) of the Rhenish Massif, north-western Rhineland-Palatinate, Germany. A. Holotype SMF 21.108, transverse section showing autozooecial chambers and vesicular skeleton (A), tangential sec1 tions showing autozooecial apertures with lunaria and vesicles (A 2 –A 5). B. Paratype SMF 21.113, longitudinal section showing multilayered secondary overgrowths.
Linked collectors and determiners for: First record of the Harlequin crab Lissocarcinus orbicularis, an obligate symbiont of sea cucumbers, from the Red Sea.
Natural history specimen data linked to collectors and determiners held within, "First record of the Harlequin crab Lissocarcinus orbicularis, an obligate symbiont of sea cucumbers, from the Red Sea". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/8fa3e1c6-840a-48cc-8cd5-fd8abb896f3e">https://bionomia.net/dataset/8fa3e1c6-840a-48cc-8cd5-fd8abb896f3e</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/8fa3e1c6-840a-48cc-8cd5-fd8abb896f3e">https://gbif.org/dataset/8fa3e1c6-840a-48cc-8cd5-fd8abb896f3e</a>. Formatted as a Frictionless Data package.
Variation in symbiont density is linked to changes in constitutive immunity in the facultatively symbiotic coral, Astrangia poculata
<p>Scleractinian corals are essential ecosystem engineers, forming the basis of coral reef ecosystems. However, these organisms are in decline globally, in part due to rising disease prevalence. Most corals are dependent on symbiotic interactions with single-celled algae from the family Symbiodiniaceae to meet their nutritional needs, however suppression of host immunity may be essential to this relationship. To explore immunological consequences of algal symbioses in scleractinian corals, we investigated constitutive immune activity in the facultatively symbiotic coral, <em>Astrangia poculata</em>. We compared immune metrics (melanin synthesis, antioxidant production, and antibacterial activity) between coral colonies of varying symbiont density. Symbiont density was positively correlated to both antioxidant activity and melanin concentration. Our results suggest that the relationship between algal symbiosis and host immunity may be more complex than originally hypothesized and highlight the need for nuanced approaches when considering these relationships.</p>
Data for: Multi-omics analysis identifies symbionts and pathogens of blacklegged ticks (Ixodes scapularis) from a Lyme disease hotspot in southeastern Ontario, Canada
<p>Ticks in the family Ixodidae are recognized as important vectors of zoonoses including Lyme disease (LD), which is caused by spirochete bacteria from the <em>Borreliella</em> (<em>Borrelia</em>) <em>burgdorferi</em> sensu lato (<em>Bbsl</em>) complex. The blacklegged tick (<em>Ixodes scapulars</em>) continues to expand across Canada, creating hotspots of elevated LD risk at the leading edge of its expansion range. Current efforts to understand the risk of pathogen transmission associated with <em>I. scapularis</em> in Canada focus primarily on targeted screens, while variation in the tick microbiome remains poorly understood. Using multi-omics consisting of 16S metabarcoding and ribosome-depleted, whole-shotgun RNA transcriptome sequencing, we examined the microbial communities associated with adult <em>I. scapularis</em> (N = 32), sampled from four tissue types (whole tick, salivary glands, midgut, and viscera) and three geographical locations within an LD hotspot near Kingston, Ontario. The communities consisted of both endosymbiotic and known or potentially pathogenic microbes, including RNA viruses, bacteria, and a <em>Babesia</em> sp. intracellular parasite. We show that β-diversity is significantly higher between individual tick salivary gland and midgut bacterial communities, compared to whole ticks; while linear discriminant analysis (LDA) effect size (LEfSe) determined that the three potentially pathogenic bacteria detected by V4 16S rDNA sequencing were also discriminatory for dissected tissues only, including a <em>Borrelia</em> from the <em>Bbsl</em> complex, <em>Borrelia miyamotoi</em>, and <em>Anaplasma phagocytophilum. </em>Importantly, we find co-infection of <em>I. scapularis</em> by multiple microbes, in contrast to diagnostic protocols for LD, which typically focus on infection from a single pathogen of interest (<em>B. burgdorferi</em> sensu stricto).</p>
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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)
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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.