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507 results for “symbionts”
FIGURE 1. Quadrella boopsis Alcock, 1898 in Two new records of the coral symbiont crab genus Quadrella Dana, 1851, from Taiwan, with notes on the taxonomy of Q. boopsis Alcock, 1898 (Crustacea: Brachyura: Trapeziidae)
FIGURE 1. Quadrella boopsis Alcock, 1898. In situ in coral, Taiwan. A, female (10.76 × 9.23 mm) (NMMBCD); B, male (5.87 × 5.24 mm) (ZRC 2015.286).
Metagenomic and metatranscriptomics data for Bathymodiolus mussel and deep-sea sponge associated symbionts deposited in NCBI, IMG and other databases
<p>Metagenomic data for the sulfur- and methane-oxidizing symbionts of <em>Bathymodiolus</em> mussels and different sponge species deposited in the Integrated Microbial Genomes (IMG) database of the DOE Joint Genome Institute (http://img.jgi.doe.gov/) and NCBI until October 2017.</p>
Supplementary Table 12 for "Sulfur-oxidizing symbionts without canonical genes for autotrophic CO2 fixation"
<p>Stable isotope ratios for dissolved inorganic carbon in Elba seawater and sediment porewater.</p>
Supplementary Table 7 for "Sulfur-oxidizing symbionts without canonical genes for autotrophic CO2 fixation"
<p>Collection localities and dates for <em>Kentrophoros </em>metabolomics samples.</p>
Supplementary Table 4 for "Sulfur-oxidizing symbionts without canonical genes for autotrophic CO2 fixation"
<p>Potential substrates for Kentron and their oxidation/reduction values.</p>
Fig. 4 Species accumulation curves. a in Assessment of hidden diversity of crinoids and their symbionts in the Bay of Nhatrang, Vietnam
Fig. 4 Species accumulation curves. a Accumulation of crinoid species as a function of collecting effort (number of crinoid specimens collected). b Accumulation of symbiont species as a function of collecting effort (number of crinoid specimens collected)
EduLifeDesks Archive: Nasonia Symbiont Database (499) DwCA
Open the record for dataset details and reuse information.
DOM samples from experimental Kelp cultures as well as symbiont culture extracts
<p>Nontargeted ESI-MS data from DOM extracts of laboratory cultures of kelp specimens, as well as kelp microbial symbiont extracts recorded on Exploris 480</p>
Data from: Only helpful when required: a longevity cost of harbouring defensive symbionts
Maternally transmitted symbionts can spread in host populations if they provide a fitness benefit to their hosts. Hamiltonella defensa, a bacterial endosymbiont of aphids, protects hosts against parasitoids but only occurs at moderate frequencies in most aphid populations. This suggests that harbouring this symbiont is also associated with costs, yet the nature of these costs has remained elusive. Here we demonstrate an important and clearly defined cost: reduced longevity. Experimental infections with six different isolates of H. defensa caused strongly reduced lifespans in two different clones of the black bean aphid, Aphis fabae, resulting in a significantly lower lifetime reproduction. However, the two aphid clones were unequally affected by the presence of H. defensa, and the magnitude of the longevity cost was further determined by genotype × genotype interactions between host and symbiont, which has important consequences for their coevolution.
FIG. 6 in TEM observations on symbionts of Joenia annectens (Flagellata Hypermastigida)
FIG. 6. Electron micrographs of J. annectens. (A) Particular of the periaxostylar mass. Arrow indicates one bacterium containing endospore;arrowhead indicates bacterium in apparent division stage. lb 5 lysosomal body; ps 5 perisymbiotic membrane; rb 5 roundish bacteria. (B) Particular of peripheral cytoplasm showing lysosomal bodies (lb) and pinocytotic tubules (pt); note ¯agellate plasma membrane thickening at sites of spirochaete attachment (arrowheads) and its ®brils (arrow). w 5 wood. (A) Ö40 500; (B) Ö30 000.
FIG. 4 in TEM observations on symbionts of Joenia annectens (Flagellata Hypermastigida)
FIG. 4. Electron micrographs of J. annectens showing particulars of axostyle (ax), parabasal bodies (g) and other structures and inclusions overhanging the collar. mvb 5 multivesicular bodies. (A) Ö20 000; (B) Ö40 000.
FIG. 5 in TEM observations on symbionts of Joenia annectens (Flagellata Hypermastigida)
FIG. 5. Electron micrograph of J. annectens showing a group of roundish bacteria from the periaxostylar mass. Arrows indicate bacteria sequestered into an other bacterium; arrowhead indicates electron-dense granules. els 5 electron lucent space; ps 5 perisymbiotic membrane; r 5 ribosomes; sp 5 spirochetaes. Ö46 000.
FIG. 3 in TEM observations on symbionts of Joenia annectens (Flagellata Hypermastigida)
FIG. 3. Electron micrographs of J. annectens showing the adhesion of rod-shaped bacteria and spirochaetes (A) and their progressive internalization, through membrane invaginations (B), within cytoplasmic vacuoles (®gures C, D). rsb 5 rod-shaped bacteria; sp 5 spirochaetes. (A) Ö13 500; (B) Öl0 500; (C) Ö20 000; (D) Ö30 000.
FIG. 2 in TEM observations on symbionts of Joenia annectens (Flagellata Hypermastigida)
FIG. 2. Electron micrographs of J. annectens: (A) low magni®cation of cell surface showing peripheral cytoplasm and extracellular adherent prokaryotes; (B, C) particular of adherent spirochaetes. Arrowheads point to plasma membrane thickening. cw 5 bacterial cell wall; lb 5 1ysosomal body; r 5 ribosomes; rsb 5 rod-shaped bacteria; sp 5 spirochaetes; w 5 wood. (A) Ö7500; (B) Ö26 500; (C) Ö40,500.
FIG. 1 in TEM observations on symbionts of Joenia annectens (Flagellata Hypermastigida)
FIG. 1. DIC photograph of Joenia annectens from the hindgut of Kalotermes Xavicollis. Arrows indicate the starting of adherent spirochaetes; asterisks indicate the collar encircling the axostyle (ax); af 5 apical ¯agella; g 5 parabasal bodies; w 5 wood. Ö580.
Figure 8 in Re-discovery and novel contributions to morphology and multigene phylogeny of Myxophyllum steenstrupi (Ciliophora: Pleuronematida), an obligate symbiont of terrestrial pulmonates
Figure 8. Phylogenetic tree based on the nuclear 18S rRNA gene as well as on the mitochondrial COI and 16S rRNA gene sequences, showing the systematic position of M. steenstrupi isolated from the plaited door snail Cochlodina laminata. The class Colpodea was used as the outgroup. Bootstrap values for maximum likelihood conducted in IQTrees as well as posterior probabilities for Bayesian inferences conducted in MrBayes and Phycas were mapped onto the best scoring IQ tree. Dash indicates mismatch between maximum likelihood and Bayesian tree topologies. Sequences marked in red were obtained during this study. Fully statistically supported nodes are marked with red solid circles. GenBank accession numbers can be found in Supporting Information (Table S6). The scale bar denotes six substitutions per one hundred nucleotide positions.
Figure 6 in Re-discovery and novel contributions to morphology and multigene phylogeny of Myxophyllum steenstrupi (Ciliophora: Pleuronematida), an obligate symbiont of terrestrial pulmonates
Figure 6. Phylogenetic tree based on the nuclear 18S, 5.8S, and 28S rRNA gene sequences, showing the systematic position of M. steenstrupi isolated from the plaited door snail Cochlodina laminata. The subclass Scuticociliatia is represented by the orders Philasterida and Pleuronematida, the subclass Astomatia was used as the outgroup. Bootstrap values for maximum likelihood conducted in IQTrees as well as posterior probabilities for Bayesian inferences conducted in MrBayes and Phycas were mapped onto the best scoring IQ tree. Dash indicates mismatch between maximum likelihood and Bayesian tree topologies. Sequences marked in red were obtained during this study. Fully statistically supported nodes are marked with red solid circles. GenBank accession numbers can be found in Supporting Information (Table S2). The scale bar denotes seven substitutions per one hundred nucleotide positions.
Figure 2. M. steenstrupi after protargol impregnation. A, B in Re-discovery and novel contributions to morphology and multigene phylogeny of Myxophyllum steenstrupi (Ciliophora: Pleuronematida), an obligate symbiont of terrestrial pulmonates
Figure 2. M. steenstrupi after protargol impregnation. A, B, top and bottom overviews of the same specimen, showing the ciliary pattern and nuclear apparatus. Black arrowheads mark the anterior suture, white double arrowheads denote the right lateral suture, white arrowheads denote the left lateral suture, and arrows mark the posterior suture. C, detail of the silverline system in the anterior body portion. D, semischematic diagram, showing the ciliary pattern within and around the mouth pocket. MA, macronuclear nodules; MI, micronucleus; PM, paroral membrane; SK, somatic kineties; SL, silverline; VK, vestibular kineties. Scale bars = 20 Μm (C), 55 Μm (A, B).
Figure 4. M in Re-discovery and novel contributions to morphology and multigene phylogeny of Myxophyllum steenstrupi (Ciliophora: Pleuronematida), an obligate symbiont of terrestrial pulmonates
Figure 4. M. steenstrupi after protargol impregnation (A–D, H) and after silver nitrate impregnation (E–G). A, detail of the anterolateral body region, showing the anterior suture (black arrowhead) made by abutting anterior ends of ventral kineties and thigmotactic kineties. B, detail of the posterolateral body region, showing the posterior suture. C, frontal view, showing the entrance to the mouth pocket (arrow). Note that somatic kineties enter the mouth pocket to become vestibular kineties. D, optical section through the mouth pocket, showing the vestibular kineties, adoral organelle and paroral membrane. E–G, details of the cell surface, showing the somatic ciliary pattern and the silverline system. Black arrowheads mark the anterior suture, opposed white arrowheads denote the blank stripe within the right lateral suture, red arrows show the dikinetids of the thigmotactic field, and red arrowheads mark the horizontal silverlines. H, detail of the anterior body region, showing the thigmotactic field and the blank stripe within the right lateral suture (opposed white arrowheads). AO, adoral organelle; F, fibres, MP, mouth pockets; PM, paroral membrane; VK, vestibular kineties; SK, somatic kineties. Scale bars = 5 Μm (G), 10 Μm (B), 15 Μm (H), 20 Μm (A, C, E).
Figure 3. M in Re-discovery and novel contributions to morphology and multigene phylogeny of Myxophyllum steenstrupi (Ciliophora: Pleuronematida), an obligate symbiont of terrestrial pulmonates
Figure 3. M. steenstrupi in vivo (A–D) and after protargol impregnation (E, F). A, B, ventral overviews of two representative individuals, showing the nuclear apparatus and the contractile vacuole. Arrow in (A) indicates the entrance to the mouth pocket. C, D, details of the posterior body region, showing the entrance to the mouth pocket (arrow) containing vestibular kineties, the nuclear and contractile vacuole apparatus as well as the posterior suture (opposed white arrowheads). E, top overview, showing the nuclear apparatus and the ciliary pattern. Black arrowheads mark the anterior suture, the white arrowhead denotes the left lateral suture. F, detail of nuclear apparatus of the specimen shown in (E). CV, contractile vacuole; MA, macronuclear nodules; MI, micronucleus; MP, mouth pocket; SK, somatic kineties; TF, thigmotactic field; VK, vestibular kineties. Scale bars = 15 Μm (C), 25 Μm (D), 30 Μm (F), 55 Μm (E), 60 Μm (A, B).
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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.