Find research datasets worth reusing

Fig. 2 in Molecular confirmation of Hymenolepis hibernia in field mice (Apodemus sylvaticus) from St Kilda has potential to resolve a host-parasite relationship

Fig. 2. The Sanger sequence of 385 bp of mt-Cox-1 fragments of cyclophyllidean DNA generated from eggs recovered from mouse 9 and faeces X (6. H-HA25), aligned with 5 corresponding H. hibernia sequences published in the NCBI Genbank database. There are 12 intraspecific SNPs at positions 5, 60, 78, 84, 90, 156, 216, 219, 252, 262, 291 and 318. GeneBank submission ID: 2151861.

Fig. 2 in The life history strategy of a fur seal hookworm in relation to pathogenicity and host health status

Fig. 2. Hookworm prevalence, egg shedding and abundance of larvae in the soil are correlated with adult females and pup density. (a) Prevalence reach over 90% when pups are between 20 and 30 days old, then substantially decline and by 75 days-old on average, all pups have cleared hookworm infection. Numbers in parenthesis indicate sample size. Bars represent binomial confidence intervals (b) Mean fecal hookworm egg count follow a similar curve with the highest number of eggs being shed when the number of adult fur seal females in the rookery is still high, between December 30 and January 15th, when pups are on average 15 to 30 days-old. (c) The soil from areas of the rookery with higher pup density had larger numbers of hookworm larvae (GLM, X2 = 1303, df = 3, P = 2.2 × 10−16). Whiskers represent 95% confidence intervals.

Fig. 1 in Molecular confirmation of Hymenolepis hibernia in field mice (Apodemus sylvaticus) from St Kilda has potential to resolve a host-parasite relationship

Fig. 1. Examples of cyclophyllidean tapeworms and eggs recovered from Apodemus sylvaticus viscera and faeces. A: Unarmed scolex of an intact tapeworm - mouse 5. B: Anoplocephalid tapeworm egg - mouse 8. C: Hymenolepidid egg cropped without changing dimensions from the same image as B, for comparison - mouse 8. D: Anoplocephalid tapeworm egg - mouse X (faeces from a cleat). E: Anoplocephalid onchosphere released after squashing an egg under a cover slip - mouse X (faeces from a cleat). F: Tapeworm from mouse 8 (scolex not intact). G: hymenolepidid tapeworm egg - mouse X (faeces from a cleat). H: Hexacanth onchosphere surrounded by an onchospheral membrane and inner zone of the embryophore, which has swollen, having been released from the egg shell by squashing under a cover slip - mouse 9. I: Hymenolepidid tapeworm egg - mouse 7. J: Hexacanth onchosphere surrounded by an intact onchospheral membrane and inner and outer zones of the embryophore, being released from a cracked egg shell by squashing under a cover slip - mouse 7. K: Hymenolepidid tapeworm egg - mouse 8. L: Hexacanth onchosphere surrounded by an onchospheral membrane and inner zone of the embryophore, which has swollen, having been released from the egg shell by squashing under a cover slip - mouse 8.

Fig. 3 in The life history strategy of a fur seal hookworm in relation to pathogenicity and host health status

Fig. 3. Correlations between hookworm burden, egg shedding and extraction of host resources. (a) Hookworm burden is highly correlated with egg shedding in pup's feces (third order polynomial regression, adj-r2 = 0.921, P = 2.2 × 10−16). (b) Hemoglobin concentration decreases as the number of hookworm eggs in pup's feces increase (second order polynomial regression, adj-r2 = 0.401, P = 2.09 × 10−14), suggesting that extraction of host resources depends on parasitic burden. (c) Female hookworms harbor similar number of eggs in their uterus regardless of parasitic burden (linear regression, adj- r2 = −0.03, F = 1.01, df = 36, P = 0.321), suggesting that there is no decline in egg output even at high hookworm densities. The solid lines represent the best fit model with 95% confidence intervals (dashed lines).

Fig. 3. Maximum Likelihood tree for the 35 haplotypes identified from 39 in Molecular confirmation of Hymenolepis hibernia in field mice (Apodemus sylvaticus) from St Kilda has potential to resolve a host-parasite relationship

Fig. 3. Maximum Likelihood tree for the 35 haplotypes identified from 39 mt-cox-1 sequences of Hymenolepis species. Of these, 19, 5, 2 and 8 haplotypes are identified in the Genbank database as H. diminuta, H. hibernia, H. microstoma and H. nana, respectively, and one haplotype (H-HA25) was identified here from the faeces of St Kilda mice 9 and X. Branches with bootstrap values (1000 replications) represented at the base of the nodes. The phylogeny is rooted with mt-cox-1 sequence of parasitic nematode H. contortus.

Fig. 3 in A comparison of helminth infections as assessed through coprological analysis and adult worm burdens in a wild host

Fig. 3. The relationship between adult lungworm (A. falciformis) burden and number of larvae per g of faeces in Irish badgers (n = 289).

Fig. 2 in A comparison of helminth infections as assessed through coprological analysis and adult worm burdens in a wild host

Fig. 2. The relationship between adult hookworm (U. criniformis) burden and faecal egg counts (e.p.g) in Irish badgers (n = 289).

Fig. 2 in Microclimate and host body condition influence mite population growth in a wild bird-ectoparasite system

Fig. 2. Distribution of nest mite population sizes estimated when nests were placed in a Berlese funnel after nestlings had fledged. All nests began the experiment with the same population size (100 live mites), mimicking identical transmission, but ending population sizes 30–35 days later were highly variable. This suggests that factors of the nest environment or hosts may be playing an important role in mite population growth.

Fig. 4 in Microclimate and host body condition influence mite population growth in a wild bird-ectoparasite system

Fig. 4. The relationship between the substrate the nest was built on: concrete, metal, or wood (y-axis) and the number of mites estimated in the field when chicks were 12 days old. Nests built on wooden substrates had significantly more mites compared to nests built on concrete or metal substrates. This graph was made using raw data, but models reported in the text included site as a random effect.

Fig. 3 in Microclimate and host body condition influence mite population growth in a wild bird-ectoparasite system

Fig. 3. Relationship between the number of non-mite arthropods (x-axis) and nest mites (y-axis) that were recovered when experimental nests were removed from the field after nestlings fledged and placed in a Berlese funnel. Nests with more arthropods had significantly fewer nest mites. This graph was made using raw data, but models reported in text had a Poisson distribution and included site as a random effect.

Fig. 4 in The distribution and host-association of a haemoparasite of damselfishes (Pomacentridae) from the eastern Caribbean based on a combination of morphology and 18S rDNA sequences

Fig. 4. Phylogenetic analysis of the Haemohormidium-like parasite based on 18S rDNA sequences. Bayesian inference (BI) analysis showing the phylogenetic relationships for 8 Haemohormidium-like parasite isolates, 6 from the present study (GenBank: MH401637-42) (in bold) and 2 from Renoux et al. (2017), isolated from three species of Stegastes including Stegastes adustus, Stegastes diencaeus and Stegastes planifrons, from 5 sites in the eastern Caribbean. Comparative sequences representing known coccidia, with Adelina dimidiata (DQ096835) as outgroup, were downloaded from the GenBank database. Nodal support values> 50% are represented on the tree.

Fig. 2 in The distribution and host-association of a haemoparasite of damselfishes (Pomacentridae) from the eastern Caribbean based on a combination of morphology and 18S rDNA sequences

Fig. 2. Peripheral blood stages of the Haemohormidium-like parasite infecting species of Stegastes. Giemsa stained light micrographs of the Haemohormidium-like parasite as observed in the peripheral blood of Stegastes diencaeus from St Thomas, eastern Caribbean (Genbank accession number MH401641). A. rare possible trophozoite stage. B. possible meront stages undergoing transverse binary fission. C. possible meront stages undergoing longitudinal binary fission. Scale bar = 10 μm.

Fig. 3 in The distribution and host-association of a haemoparasite of damselfishes (Pomacentridae) from the eastern Caribbean based on a combination of morphology and 18S rDNA sequences

Fig. 3. Prevalence of infection differences among six Stegastes spp., averaged across six study sites. 95% confidence intervals calculated using the Wilson procedure with continuity corrections. Different lower-case letters above each bar indicates a significant (p ≤ 0.05) difference between species, as indicated by a binomial logistic regression (GLMM results shown in Table 1).

Fig. 1 in The distribution and host-association of a haemoparasite of damselfishes (Pomacentridae) from the eastern Caribbean based on a combination of morphology and 18S rDNA sequences

Fig. 1. Map of the Eastern Caribbean region showing collection sites for the current study and Cook et al., 2015.

opencc-by-4.0Apr 2018View details →

Fig. 1 in Toxocariasis in Carnivora from Argentinean Patagonia: Species molecular identification, hosts, and geographical distribution

Fig. 1. Collection sites of specimens of Felidae, Mustelidae, and Canidae in Lanín and Nahuel Huapi National Parks from Argentinean Patagonia.

Host Data from: [O II] as an Effective Indicator of the Dependence Between the Standardised Luminosities of Type Ia Supernovae and the Properties of their Host Galaxies

Spectral properties of the Foundation Host Galaxies presented in the paper: [O II] as an Effective Indicator of the Dependence Between the Standardised Luminosities of Type Ia Supernovae and the Properties of their Host Galaxies. Spectra were taken using the WiFeS instrument on the ANU 2.3m Telescope.

opencc-by-4.0Apr 2024View details →

An intranuclear bacterial parasite of deep-sea mussels expresses apoptosis inhibitors acquired from its host

Only a few bacteria are able to colonize the nuclei of eukaryotes and nearly all of these are known from protists. One bacterial clade, however, “Candidatus Endonucleobacter”, infects the nuclei of deep-sea mussels, where it replicates to ≥ 80,000 bacteria per nucleus and causes nuclei to swell to 50 times their original size. How these parasites are able to replicate so massively and avoid apoptosis is not known. Dual RNA-seq transcriptomes of infected nuclei isolated using laser-capture microdissection revealed that in contrast to previous assumptions, “Ca. Endonucleobacter” does not gain most of its nutrition from nuclear DNA or RNA. Instead, “Ca. Endonucleobacter” upregulated genes for importing sugars, lipids, amino acids and possibly mucin from its host, and digested these nutrients. “Ca. Endonucleobacter” likely prevents apoptosis of host cells by upregulating 7-13 inhibitors of apoptosis (IAPs), proteins previously only known from animals and a few invertebrate viruses. Comparative phylogenetic analyses revealed that “Ca. Endonucleobacter” acquired IAPs repeatedly through horizontal gene transfer (HGT) from their hosts in convergent acquisition. HGT from eukaryotes to bacteria, although assumed to be rare, may be more common than currently recognized, particularly in bacteria that live in intimate associations with eukaryotic hosts.

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.