Log in

Relevant bibliographies by topics / Platyhelminthes / Journal articles

To see the other types of publications on this topic, follow the link: Platyhelminthes.

Journal articles on the topic 'Platyhelminthes'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2024

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Platyhelminthes.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Sudo, Kosuke, Yoshiaki J. Hirano, and Yayoi M. Hirano. "Newly discovered parasitic Turbellaria of opisthobranch gastropods." Journal of the Marine Biological Association of the United Kingdom 91, no. 5 (December 15, 2010): 1123–33. http://dx.doi.org/10.1017/s0025315410001761.

Full text

Abstract:

An endoparasitic platyhelminth from six species of sacoglossan opisthobranchs was collected at several localities of temperate to subtropical waters in Japan. Poecilostomatoid copepods (all species of Splanchnotrophidae and several species of Philoblennidae) and a few digenean flukes had been the only endoparasitic metazoans known for opisthobranch hosts. The newly discovered parasite was 1 to 15 mm in length and had no eyes, mouth, pharynx, or intestine. It had no external organs for parasitic life (e.g. attachment organs) and inhabited the haemocoel of the host. When mature, it emerged from the host and secreted a silky substance around itself to form a cocoon. The cocoon contained egg capsules with 19–42 eggs. Larvae, hatched from the capsule, had a ciliated body and a pair of eye spots. They were negatively phototactic and capable of invading suitable hosts. These morphological and life history features suggest this parasitic worm may belong to the family Fecampiidae (Platyhelminthes: Turbellaria), one of a few obligate parasite taxa in Turbellaria. Molluscan hosts which are common for parasitic Platyhelminthes have not previously been known for this family. The newly discovered parasite may be important for understanding the evolution of parasitism in Platyhelminthes.

APA, Harvard, Vancouver, ISO, and other styles

2

Collins, James J. "Platyhelminthes." Current Biology 27, no. 7 (April 2017): R252—R256. http://dx.doi.org/10.1016/j.cub.2017.02.016.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Baguñà, Jaume, and Marta Riutort. "Molecular phylogeny of the Platyhelminthes." Canadian Journal of Zoology 82, no. 2 (February 1, 2004): 168–93. http://dx.doi.org/10.1139/z03-214.

Full text

Abstract:

The phylum Platyhelminthes has traditionally been considered the most basal bilaterian taxon. The main difficulty with this placement is the lack of convincing synapomorphies for all Platyhelminthes, which suggest that they are polyphyletic. Recent molecular findings based on 18S rDNA sequence data and number and type of Hox genes strongly suggest that the majority of Platyhelminthes are members of the lophotrochozoan protostomes, whereas the Acoelomorpha (Acoela + Nemertodermatida) fall outside of the Platyhelminthes as the most basal bilaterian taxon. Here we review phylum-wide analyses based on complete ribosomal and other nuclear genes addressed to answer the main issues facing systematics and phylogeny of Platyhelminthes. We present and discuss (i) new corroborative evidence for the polyphyly of the Platyhelminthes and the basal position of Acoelomorpha; (ii) a new consensus internal tree of the phylum; (iii) the nature of the sister group to the Neodermata and the hypotheses on the origin of parasitism; and (iv) the internal phylogeny of some rhabditophoran orders. Some methodological caveats are also introduced. The need to erect a new phylum, the Acoelomorpha, separate from the Platyhelminthes (now Catenulida + Rhabditophora) and based on present and new morphological and molecular characters is highlighted, and a proposal made.

APA, Harvard, Vancouver, ISO, and other styles

4

Avelino-Capistrano, Fernanda, Leandro Silva Barbosa, and André Mallemont Cunha. "Occurrence of Temnocephala (Platyhelminthes: Temnocephalida) in Immatures of Kempnyia reticulata (Enderlein) (Insecta: Plecoptera: Perlidae)." EntomoBrasilis 6, no. 1 (April 14, 2013): 91–93. http://dx.doi.org/10.12741/ebrasilis.v6i1.226.

Full text

Abstract:

First register of Temnocephala (Platyhelminthes: Temnocephalida) in immature of Kempnyia reticulata (Enderlein) (Plecoptera: Perlidae). The insects were collected in rivers of Estação Biológica de Santa Lúcia, Santa Teresa, Espirito Santo, Brazil. Primeiro registro de Temnocephala (Platyhelminthes: Temnocephalida) em imaturos de Kempnyia reticulata (Enderlein) (Plecoptera: Perlidae). Resumo. Primeiro registro de Temnocephala (Platyhelminthes: Temnocephalida) em imaturos de Kempnyia reticulata (Enderlein) (Plecoptera: Perlidae). Os insetos foram coletados em um riacho da Estação Biológica de Santa Lúcia, Santa Teresa, Espírito Santo, Brasil.

APA, Harvard, Vancouver, ISO, and other styles

5

CHALMERS, IAIN W., and KARL F. HOFFMANN. "Platyhelminth Venom Allergen-Like (VAL) proteins: revealing structural diversity, class-specific features and biological associations across the phylum." Parasitology 139, no. 10 (May 2, 2012): 1231–45. http://dx.doi.org/10.1017/s0031182012000704.

Full text

Abstract:

SUMMARYDuring platyhelminth infection, a cocktail of proteins is released by the parasite to aid invasion, initiate feeding, facilitate adaptation and mediate modulation of the host immune response. Included amongst these proteins is the Venom Allergen-Like (VAL) family, part of the larger sperm coating protein/Tpx-1/Ag5/PR-1/Sc7 (SCP/TAPS) superfamily. To explore the significance of this protein family during Platyhelminthes development and host interactions, we systematically summarize all published proteomic, genomic and immunological investigations of the VAL protein family to date. By conducting new genomic and transcriptomic interrogations to identify over 200 VAL proteins (228) from species in all 4 traditional taxonomic classes (Trematoda, Cestoda, Monogenea and Turbellaria), we further expand our knowledge related to platyhelminth VAL diversity across the phylum. Subsequent phylogenetic and tertiary structural analyses reveal several class-specific VAL features, which likely indicate a range of roles mediated by this protein family. Our comprehensive analysis of platyhelminth VALs represents a unifying synopsis for understanding diversity within this protein family and a firm context in which to initiate future functional characterization of these enigmatic members.

APA, Harvard, Vancouver, ISO, and other styles

6

Bandoni, Susan M., and Daniel R. Brooks. "Revision and phylogenetic analysis of the Amphilinidea Poche, 1922 (Platyhelminthes: Cercomeria: Cercomeromorpha)." Canadian Journal of Zoology 65, no. 5 (May 1, 1987): 1110–28. http://dx.doi.org/10.1139/z87-175.

Full text

Abstract:

Systematic relationships of amphilinidean platyhelminth species were investigated. Eight species and three genera are considered valid. Analysis of 46 character states comprising 34 homologous series produced a single phylogenetic tree with a consistency index value of 87%, indicating a very low degree of parallelism in the evolution of amphilinidean morphology. Comparison of host and parasite phylogenies produced a fit of 70%, suggesting a high degree of coevolution between amphilinideans and their teleostean hosts. The geographic distribution of the amphilinideans was compared with four current hypotheses of area relationship for the southern land masses. Consistency index values obtained range from 87.5% to 100%, indicating that vicariance may be sufficient to explain the biogeographic distribution of amphilinidean platyhelminths.

APA, Harvard, Vancouver, ISO, and other styles

7

Moguel, Bárbara, Raúl J. Bobes, Julio C. Carrero, and Juan P. Laclette. "Transfection of Platyhelminthes." BioMed Research International 2015 (2015): 1–9. http://dx.doi.org/10.1155/2015/206161.

Full text

Abstract:

Flatworms are one of the most diverse groups within Lophotrochozoa with more than 20,000 known species, distributed worldwide in different ecosystems, from the free-living organisms in the seas and lakes to highly specialized parasites living in a variety of hosts, including humans. Several infections caused by flatworms are considered major neglected diseases affecting countries in the Americas, Asia, and Africa. For several decades, a particular interest on free-living flatworms was due to their ability to regenerate considerable portions of the body, implying the presence of germ cells that could be important for medicine. The relevance of reverse genetics for this group is clear; understanding the phenotypic characteristics of specific genes will shed light on developmental traits of free-living and parasite worms. The genetic manipulation of flatworms will allow learning more about the mechanisms for tissue regeneration, designing new and more effective anthelmintic drugs, and explaining the host-parasite molecular crosstalk so far partially inaccessible for experimentation. In this review, availability of transfection techniques is analyzed across flatworms, from the initial transient achievements to the stable manipulations now developed for free-living and parasite species.

APA, Harvard, Vancouver, ISO, and other styles

8

Cristina Damborenea, M., and Lester R. G. Cannon. "On neotropicalTemnocephala(Platyhelminthes)." Journal of Natural History 35, no. 8 (August 2001): 1103–18. http://dx.doi.org/10.1080/00222930152434454.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Ehlers, Ulrich, and Beate Sopott-Ehlers. "Plathelminthes or Platyhelminthes?" Hydrobiologia 305, no. 1-3 (June 1995): 1–2. http://dx.doi.org/10.1007/bf00036354.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Mitsi, Konstantina, Alicia S. Arroyo, and Iñaki Ruiz-Trillo. "A global metabarcoding analysis expands molecular diversity of Platyhelminthes and reveals novel early-branching clades." Biology Letters 15, no. 9 (September 11, 2019): 20190182. http://dx.doi.org/10.1098/rsbl.2019.0182.

Full text

Abstract:

Understanding biological diversity is crucial for ecological and evolutionary studies. Even though a great part of animal diversity has already been documented, both morphological surveys and metabarcoding analyses have previously shown that some animal groups, such as Platyhelminthes, may harbour hidden diversity. To better understand the molecular diversity of Platyhelminthes, one of the most diverse and biomedically important animal phyla, we here combined data from six marine and two freshwater metabarcoding expeditions that cover a broad variety of aquatic habitats and analysed the data by phylogenetic placement. Our results show that a great part of the hidden diversity is located in early-branching clades such as Catenulida and Macrostomorpha, as well as in late-diverging clades such as Proseriata and Rhabdocoela. We also report the first freshwater record of Gnosonesimida, a group previously thought to be exclusively marine. Finally, we identified two putative novel freshwater Platyhelminthes clades that branch between well-defined orders of the phylum. Thus, our analyses of several environmental datasets confirm that a large part of the diversity of Platyhelminthes remains undiscovered, point to groups with more potential novel species and identify freshwater environments as potential reservoirs for novel species of flatworms.

APA, Harvard, Vancouver, ISO, and other styles

11

Bandoni, Susan M., and Daniel R. Brooks. "Revision and phylogenetic analysis of the Gyrocotylidea Poche, 1926 (Platyhelminthes: Cercomeria: Cercomeromorpha)." Canadian Journal of Zoology 65, no. 10 (October 1, 1987): 2369–89. http://dx.doi.org/10.1139/z87-358.

Full text

Abstract:

Phylogenetic analysis of 10 gyrocotylidean platyhelminth species, based on 24 character states comprising 13 homologous series, produced two similar phylogenetic trees of equal length. The consistency index value for each tree is 87.5%, indicating a low degree of parallel evolution in the morphology of gyrocotylidean platyhelminths. Slightly more than half of the observed associations between gyrocotylideans and holocephalan hosts can be attributed to coevolution. Remaining associations must be attributed to colonization, but these represent recolonizations of plesiomorphic hosts. The geographic distribution of gyrocotylideans remains enigmatic, as part of it seems to predate tectonic plate movements. Extensive dispersal has occurred; dispersal events are correlated with host transfers. It is hypothesized that the origin of gyrocotylideans predates separation of the continents, and that there were two phases in the evolution of the gyrocotylideans, an initial phase of coevolution and a later phase of colonization and dispersal.

APA, Harvard, Vancouver, ISO, and other styles

12

Barger, Michael A., D. T. J. Littlewood, and R. A. Bray. "Interrelationships of the Platyhelminthes." Journal of Parasitology 87, no. 6 (December 2001): 1264. http://dx.doi.org/10.2307/3285286.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Kusel, John. "Parasitism and the Platyhelminthes." Parasitology Today 14, no. 12 (December 1998): 502–3. http://dx.doi.org/10.1016/s0169-4758(98)01324-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Alifuddin, M., Yani Hadiroseyani, and I. Ohoiulun. "Parasites in Fresh Water Ornamental Fish (Cupang, Guppy and Rainbow Fish)." Jurnal Akuakultur Indonesia 2, no. 2 (August 1, 2007): 93. http://dx.doi.org/10.19027/jai.2.93-100.

Full text

Abstract:

<p>Parasite inventory on some fresh water ornamental fish was done by survey methode. Parasites found from cupang fish namely Trichodinid (Ciliophora), <em>Dactylogyrus </em>sp. and <em>Gyrodaclylus </em>sp. (Platyhelminthes), Acanthocephala and cystic form; in guppy fish Trichodinid (Ciliophora), <em>Gyrodaclylus </em>sp. (Platyhelminthes) and <em>Lerneae </em>sp. (Crustasea); on rainbowg found Trichodinid (Ciliophora), <em>Dactylogyrus </em>sp., <em>Gyrodaclylus </em>sp. (Platyhelminthes), Acanthocephala, <em>Lerneae </em>sp. (Krustasea) and cystic form. Parasites found known as ecto, meso and endoparasites. From this study, there is correlation between parastes present with length fish.</p> <p>Key word : Fish water ornamental fish, fish parasites</p> <p> </p> <p>ABSTRAK</p> <p>Inventarisi parasit telah dilakukan dengan metode survey pada ikan hias air tawar yakni, ikan cupang <em>(Betta splendens </em>Regan), ikan gapi <em>(Poecilia reticulata </em>Peters) dan ikan rainbow <em>(Melanotaenia macculochi </em>Ogilby). Pada ikan cupang ditemukan parasit Trichodinid (Ciliophora), <em>Dactylogyrus </em>sp. dan <em>Gyrodaclylus </em>sp. (Platy-helminthes), Acanthocephala dan kiste); pada ikan gapi ditemukan Trichodinid (Ciliophora), <em>Gyrodaclylus </em>sp. (Platyhelminthes) dan <em>Lerneae </em>sp. (Krustasea); pada ikan rainbowg ditemukan parasit Trichodinid (Ciliophora), <em>Dactylogyrus </em>sp., <em>Gyrodaclylus </em>sp. (Platyhelminthes), Acanthocephala, <em>Lerneae </em>sp. <em>{Krustasea) </em>dan kista. Parasit yang ditemukan tergolong ekto, meso dan endoparasit. Dari penelitian ini terlihat adanya hubungan keberadaan parasit dengan ukuran panjang ikan.</p> Kata kunci: Ikan hias air tawar, parasit ikan

APA, Harvard, Vancouver, ISO, and other styles

15

Barger, Michael A. "BOOK REVIEW:Interrelationships of the Platyhelminthes." Journal of Parasitology 87, no. 6 (December 2001): 1264. http://dx.doi.org/10.1645/0022-3395(2001)087[1264:br]2.0.co;2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Iomini, Carlo, Marco Ferraguti, Giulio Melone, and Jean-Lou Justine. "Spermiogenesis in a Scutariellid (Platyhelminthes)." Acta Zoologica 75, no. 4 (October 1994): 287–95. http://dx.doi.org/10.1111/j.1463-6395.1994.tb00965.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Yoneva, Aneta, Tomáš Scholz, Magdaléna Bruňanská, and Roman Kuchta. "Vitellogenesis of diphyllobothriidean cestodes (Platyhelminthes)." Comptes Rendus Biologies 338, no. 3 (March 2015): 169–79. http://dx.doi.org/10.1016/j.crvi.2015.01.001.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

ROHDE, KLAUS, and ANNO FAUBEL. "Spermatogenesis ofMacrostomum pusillum(Platyhelminthes, Macrostomida)." Invertebrate Reproduction & Development 32, no. 3 (November 1997): 209–15. http://dx.doi.org/10.1080/07924259.1997.9672626.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Koziol, Uriel, Monica Marín, and Estela Castillo. "Pumilio genes from the Platyhelminthes." Development Genes and Evolution 218, no. 1 (January 2008): 47–53. http://dx.doi.org/10.1007/s00427-007-0200-1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Riutort, M., K. G. Field, J. M. Turbeville, R. A. Raff, and J. Baguña. "Enzyme electrophoresis, 18S rRNA sequences, and levels of phylogenetic resolution among several species of freshwater planarians (Platyhelminthes, Tricladida, Paludicola)." Canadian Journal of Zoology 70, no. 7 (July 1, 1992): 1425–39. http://dx.doi.org/10.1139/z92-199.

Full text

Abstract:

Enzyme polymorphism and 18S rRNA sequences have been used to measure genetic distances between several species of Platyhelminthes belonging to different taxa including freshwater and parasitic forms. We have used these data to address unresolved phylogenetic and taxonomic problems with this group at several different levels ranging from phylum to subgenus. The main conclusions supported by the data seem to be the following: (i) 18S rRNA data strongly suggest that the Platyhelminthes are monophyletic, being a sister-group to the other Eubilateria; a similar conclusion applies to the Paludicola as to the rest of Platyhelminthes studied; (ii) 18S rRNA and enzyme data indicate that the family Dugesiidae of the Paludicola is monophyletic with respect to the other two families, Planariidae and Dendrocoelidae; and (iii) the subgenus Schmidtea of the genus Dugesia is monophyletic with respect to the other two subgenera of Dugesia, Dugesia and Girardia. Other aspects of the relationships of subgenera and families could not be satisfactorily resolved, but point to new problems that should be addressed in future studies, namely the taxonomic status of the family Planariidae and the relationships between the genera and subgenera of the family Dugesiidae.

APA, Harvard, Vancouver, ISO, and other styles

21

Williams, J. B. "Comparative study of sperm morphology and reproductive biology ofKronborgiaandTemnocephala(Platyhelminthes, Neoophora): Implications for platyhelminth phytogeny." New Zealand Journal of Zoology 21, no. 2 (January 1994): 179–94. http://dx.doi.org/10.1080/03014223.1994.9517985.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Tyler, Seth, and Matthew Hooge. "Comparative morphology of the body wall in flatworms (Platyhelminthes)." Canadian Journal of Zoology 82, no. 2 (February 1, 2004): 194–210. http://dx.doi.org/10.1139/z03-222.

Full text

Abstract:

The soft-bodied nature of the platyhelminths is due largely to the structure of the body wall and its lack of sclerotic elements such as cuticle. Free-living members, i.e., most turbellarians, show considerable variety, but the basic form of the body wall comprises a simple ciliated epithelium overlying a network of muscles. We illustrate this body wall structure in a representative typhloplanoid rhabditophoran and discuss variations in representatives of the Acoela, Catenulida, and other free-living rhabditophorans. The major parasitic groups of platyhelminths, the rhabditophoran Neodermata, follow a developmental pattern that replaces a similar ciliated epidermis in a larval stage with a specialized epidermis called a neodermis, which is assumed to be key to their success as parasites. This neodermis consists of a syncytium that covers the body in a continuous sheet connected to perikarya that lie below the body wall musculature. The neodermis can be seen as a special adaptation of a developmental mechanism common to all platyhelminths, in which epidermal growth and renewal are accomplished by replacement cells originating beneath the body wall. The cell type responsible for all cell renewal, including body wall renewal, in platyhelminths is the neoblast, and its presence may be the one autapomorphic character that unites all taxonomic groups of platyhelminths.

APA, Harvard, Vancouver, ISO, and other styles

23

Watson, Nikki A., and Klaus Rohde. "Novel Protonephridial Filtration Apparatus in Cylindrostoma fingalianum, Allostoma sp. and Pseudostomum quadrioculatum (Platyhelminthes: Prolecithophora)." Australian Journal of Zoology 45, no. 6 (1997): 621. http://dx.doi.org/10.1071/zo97043.

Full text

Abstract:

The diverse types of protonephridial filtration apparatus in the Platyhelminthes provide valuable characters for phylogenetic resolution, yet only one species from the order Prolecithophora has previously been studied. We examined three further species, two belonging to the family Cylindrostomidae and one from the Pseudostomidae, and found a novel arrangement consisting of scattered, short filtration slits in the cytoplasmic cylinder of the terminal cell surrounding the flame of cilia. In these species there are no regular, longitudinal ‘ribs’, such as are found in many other platyhelminth taxa, nor bundles of supporting microtubules in the cylinder wall, and cilia arise at various levels throughout the long terminal cell column rather than in a group at the base of the flame, as is found in most other taxa. The perikaryon lies adjacent to the flame, the wall surrounding the lumen is strengthened by long, cross-striated ciliary rootlets, and the terminal cell is joined to the proximal canal by a septate junction. This simple type of filtration structure bears some resemblance to that found in Tricladida, but is distinctly different from that described in another prolecithophoran, Archimonotresis limophila (Protomonotresidae). This suggests that there may be a fundamental division within the Prolecithophora with regard to protonephridial filtration structures.

APA, Harvard, Vancouver, ISO, and other styles

24

Pineda, David, Leonardo Rossi, Renata Batistoni, Alessandra Salvetti, Maria Marsal, Vittorio Gremigni, Alessandra Falleni, Javier Gonzalez-Linares, Paolo Deri, and Emili Saló. "The genetic network of prototypic planarian eye regeneration is Pax6 independent." Development 129, no. 6 (March 15, 2002): 1423–34. http://dx.doi.org/10.1242/dev.129.6.1423.

Full text

Abstract:

We report the presence of two Pax6-related genes, Pax6A and Pax6B, which are highly conserved in two planarian species Dugesia japonica and Girardia tigrina (Platyhelminthes, Tricladida). Pax6A is more similar to other Pax6 proteins than Pax6B, which is the most divergent Pax6 described so far. The planarian Pax6 homologs do not show any clear orthology to the Drosophila duplicated Pax6 genes, eyeless and twin of eyeless, which suggests an independent Pax6 duplication in a triclad or platyhelminth ancestor. Pax6A is expressed in the central nervous system of intact planarians, labeling a subset of cells of both cephalic ganglia and nerve cords, and is activated during cephalic regeneration. Pax6B follows a similar pattern, but shows a lower level of expression. Pax6A and Pax6B transcripts are detected in visual cells only at the ultrastructural level, probably because a limited amount of transcripts is present in these cells. Inactivation of both Pax6A and Pax6B by RNA-mediated gene interference (RNAi) inhibits neither eye regeneration nor eye maintenance, suggesting that the genetic network that controls this process is not triggered by Pax6 in planarians.

APA, Harvard, Vancouver, ISO, and other styles

25

Martínez-González, José de Jesús, Alberto Guevara-Flores, and Irene Patricia del Arenal Mena. "Evolutionary Adaptations of Parasitic Flatworms to Different Oxygen Tensions." Antioxidants 11, no. 6 (May 31, 2022): 1102. http://dx.doi.org/10.3390/antiox11061102.

Full text

Abstract:

During the evolution of the Earth, the increase in the atmospheric concentration of oxygen gave rise to the development of organisms with aerobic metabolism, which utilized this molecule as the ultimate electron acceptor, whereas other organisms maintained an anaerobic metabolism. Platyhelminthes exhibit both aerobic and anaerobic metabolism depending on the availability of oxygen in their environment and/or due to differential oxygen tensions during certain stages of their life cycle. As these organisms do not have a circulatory system, gas exchange occurs by the passive diffusion through their body wall. Consequently, the flatworms developed several adaptations related to the oxygen gradient that is established between the aerobic tegument and the cellular parenchyma that is mostly anaerobic. Because of the aerobic metabolism, hydrogen peroxide (H2O2) is produced in abundance. Catalase usually scavenges H2O2 in mammals; however, this enzyme is absent in parasitic platyhelminths. Thus, the architecture of the antioxidant systems is different, depending primarily on the superoxide dismutase, glutathione peroxidase, and peroxiredoxin enzymes represented mainly in the tegument. Here, we discuss the adaptations that parasitic flatworms have developed to be able to transit from the different metabolic conditions to those they are exposed to during their life cycle.

APA, Harvard, Vancouver, ISO, and other styles

26

Slay, Michael E., William R. Elliott, and Ronald Sluys. "CAVERNICOLOUS MISSOURI TRICLAD (PLATYHELMINTHES: TURBELLARIA) RECORDS." Southwestern Naturalist 51, no. 2 (June 2006): 251–52. http://dx.doi.org/10.1894/0038-4909(2006)51[251:cmtptr]2.0.co;2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Ceccolini, F., and F. Cianferoni. "Nomenclature changes in the flatworms (Platyhelminthes)." Invertebrate Zoology 18, no. 4 (December 2021): 451–56. http://dx.doi.org/10.15298/invertzool.18.4.02.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

García-Prieto, Luis, Berenit Mendoza-Garfias, and Gerardo Pérez-Ponce de León. "Biodiversidad de Platyhelminthes parásitos en México." Revista Mexicana de Biodiversidad 85 (January 2014): 164–70. http://dx.doi.org/10.7550/rmb.31756.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Azimov, D. A., F. D. Akramova, and E. B. Shakarboev. "System of suborder Schistosomatida (Platyhelminthes: Trematoda)." Russian Journal of Parasitology 12, no. 2 (June 28, 2018): 11–12. http://dx.doi.org/10.31016/1998-8435-2018-12-2-11-22.

Full text

Abstract:

The purpose of the research: system retrofit of suborder Schistosomatidа in reliance on their morfo-biological distinctions. Materials and methods. Samples of adult and 5 species of larvas have been collected and tested: Schistosoma turkestanicum Skryabin, 1913, Bilharziella polonica (Kowalewsky, 1899), Trichobilharzia ocellata (La Valette, 1854), Dendritobilharzia loossi Skryabin, 1924 and Gigantobilharzia acotylea Odhner, 1910. Adult phases of trematode have been identified in accordance to common methods. Identification of cercaria larva produced by water living shell-fish (Lymnaeidae, Planorbidae, Physidae, Melanoididae) has been carried out according to indicators. Current system of trematode suborder Schistosomatidа - vertebrate animals and man parasites are analyzed. Results and discussion. New variant of system of trematode suborder Schistosomatidа order is proposed. Schistosomatida morfo-biological distinctions and biocycles are taken as a basis. Two families are distinguished in this suborder: Schistosomatidae and Bilharziellidae, which represent parasites of warm-blooded vertebrate animals. There are two families of Sanguinicolidae and Spirorchiidae in suborder Sanguinicolida, which consist of fish and reptile parasites respectively. For Schistosomatida order the new underclass Schistosomatidea is founded. Sanguinicolida order is left as the part of Digenea underclass consisting of androgynous fluke.

APA, Harvard, Vancouver, ISO, and other styles

30

HOLLEMAN, JOHN J. "Some New Zealand Polyclads (Platyhelminthes, Polycladida)." Zootaxa 1560, no. 1 (August 27, 2007): 1–17. http://dx.doi.org/10.11646/zootaxa.1560.1.1.

Full text

Abstract:

Eight species of poyclads from New Zealand are presented. Five species were already known to science, and are redescribed. Four of these species have been previously reported from New Zealand, the fifth, Echinoplana celerrima, is new to New Zealand. Two are new species of the genus Chromoplana, Chromoplana sirena n. sp. and Chromoplana kaikouris n. sp. One species belongs to a new genus, Aotearoa ballantinensis n. gen. n. sp. All new species and the new genus are described and discussed. The taxonomic status of Postenterogonia orbicularis, Notoplana suteri with Notoplana australis, and Leptostylochus elongatus is reviewed.

APA, Harvard, Vancouver, ISO, and other styles

31

SLUYS, RONALD. "Sperm resorption in triclads (Platyhelminthes, Tricladida)." Invertebrate Reproduction & Development 15, no. 2 (May 1989): 89–95. http://dx.doi.org/10.1080/07924259.1989.9672028.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Justine, Jean-Lou. "Introduction to histology of parasitic platyhelminthes." Microscopy Research and Technique 42, no. 3 (August 1, 1998): 173–75. http://dx.doi.org/10.1002/(sici)1097-0029(19980801)42:3<173::aid-jemt1>3.0.co;2-u.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Bowman Williams, Joan. "Phylogenetic relationships of the Temnocephaloidea (Platyhelminthes)." Hydrobiologia 132, no. 1 (January 1986): 59–67. http://dx.doi.org/10.1007/bf00046229.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Poinar, George. "A rhabdocoel turbellarian (Platyhelminthes, Typhloplanoida) in Baltic amber with a review of fossil and sub-fossil platyhelminths." Invertebrate Biology 122, no. 4 (May 11, 2005): 308–12. http://dx.doi.org/10.1111/j.1744-7410.2003.tb00095.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Caña-Bozada, Víctor, F. Neptalí Morales-Serna, Emma J. Fajer-Ávila, and Raúl Llera-Herrera. "De novo transcriptome assembly and identification of G-Protein-Coupled-Receptors (GPCRs) in two species of monogenean parasites of fish." Parasite 29 (2022): 51. http://dx.doi.org/10.1051/parasite/2022052.

Full text

Abstract:

Genomic resources for Platyhelminthes of the class Monogenea are scarce, despite the diversity of these parasites, some species of which are highly pathogenic to their fish hosts. This work aimed to generate de novo-assembled transcriptomes of two monogenean species, Scutogyrus longicornis (Dactylogyridae) and Rhabdosynochus viridisi (Diplectanidae), providing a protocol for cDNA library preparation with low input samples used in single cell transcriptomics. This allowed us to work with sub-microgram amounts of total RNA with success. These transcriptomes consist of 25,696 and 47,187 putative proteins, respectively, which were further annotated according to the Swiss-Prot, Pfam, GO, KEGG, and COG databases. The completeness values of these transcriptomes evaluated with BUSCO against Metazoa databases were 54.1% and 73%, respectively, which is in the range of other monogenean species. Among the annotations, a large number of terms related to G-protein-coupled receptors (GPCRs) were found. We identified 109 GPCR-like sequences in R. viridisi, and 102 in S. longicornis, including family members specific for Platyhelminthes. Rhodopsin was the largest family according to GRAFS classification. Two putative melatonin receptors found in S. longicornis represent the first record of this group of proteins in parasitic Platyhelminthes. Forty GPCRs of R. viridisi and 32 of S. longicornis that were absent in Vertebrata might be potential drug targets. The present study provides the first publicly available transcriptomes for monogeneans of the subclass Monopisthocotylea, which can serve as useful genomic datasets for functional genomic research of this important group of parasites.

APA, Harvard, Vancouver, ISO, and other styles

36

Gonzalez-Rivas, Cynthia Jesica, Carlos Eduardo Borghi, and Daniel Alfedro De Lamo. "Endoparásitos en guanaco (Lama guanicoe). Revisión de situación en Argentina y registros de la provincia de San Juan." Revista de Investigaciones Veterinarias del Perú 30, no. 1 (March 4, 2019): 339–49. http://dx.doi.org/10.15381/rivep.v30i1.14609.

Full text

Abstract:

Este estudio recopila los registros de especies endoparasitarias en guanacos (Lama guanicoe) de Argentina. Se hizo una revisión bibliográfica de los trabajos científicos publicados entre 1967 y 2017. Además, se incorporaron nuevos registros inéditos de localidades dentro de la provincia de San Juan. La fauna de endoparásitos estuvo representada por los phylum Nematoda, Platyhelminthes y Aplicomplexa, con un total de 65 registros totales, mencionando 26 especies y otras 14 que sólo fueron identificadas a nivel de género. Los nematodos fueron los más numerosos, seguido por el Aplicomplexa y en menor medida el pylum Platyhelminthes. Este trabajo menciona por primera vez la presencia de nematodos como Nematodirus sp, Trichuris sp, las coccidias E. macusaniensis, E. ivitaensis y Eimeria sp en guanacos silvestres de la provincia de San Juan. Hubo pocos registros en ambientes con poblaciones pequeñas de guanacos de la ecorregión Puna.

APA, Harvard, Vancouver, ISO, and other styles

37

Fromm, Bastian, Juan Pablo Tosar, Felipe Aguilera, Marc R. Friedländer, Lutz Bachmann, and Andreas Hejnol. "Evolutionary Implications of the microRNA- and piRNA Complement of Lepidodermella squamata (Gastrotricha)." Non-Coding RNA 5, no. 1 (February 22, 2019): 19. http://dx.doi.org/10.3390/ncrna5010019.

Full text

Abstract:

Gastrotrichs—'hairy bellies’—are microscopic free-living animals inhabiting marine and freshwater habitats. Based on morphological and early molecular analyses, gastrotrichs were placed close to nematodes, but recent phylogenomic analyses have suggested their close relationship to flatworms (Platyhelminthes) within Spiralia. Small non-coding RNA data on e.g., microRNAs (miRNAs) and PIWI-interacting RNAs (piRNA) may help to resolve this long-standing question. MiRNAs are short post-transcriptional gene regulators that together with piRNAs play key roles in development. In a ‘multi-omics’ approach we here used small-RNA sequencing, available transcriptome and genomic data to unravel the miRNA- and piRNA complements along with the RNAi (RNA interference) protein machinery of Lepidodermella squamata (Gastrotricha, Chaetonotida). We identified 52 miRNA genes representing 35 highly conserved miRNA families specific to Eumetazoa, Bilateria, Protostomia, and Spiralia, respectively, with overall high similarities to platyhelminth miRNA complements. In addition, we found four large piRNA clusters that also resemble flatworm piRNAs but not those earlier described for nematodes. Congruently, transcriptomic annotation revealed that the Lepidodermella protein machinery is highly similar to flatworms, too. Taken together, miRNA, piRNA, and protein data support a close relationship of gastrotrichs and flatworms.

APA, Harvard, Vancouver, ISO, and other styles

38

Wu, Wenjie, and Philip T. LoVerde. "Identification and evolution of nuclear receptors in Platyhelminths." PLOS ONE 16, no. 8 (August 13, 2021): e0250750. http://dx.doi.org/10.1371/journal.pone.0250750.

Full text

Abstract:

Since the first complete set of Platyhelminth nuclear receptors (NRs) from Schistosoma mansoni were identified a decade ago, more flatworm genome data is available to identify their NR complement and to analyze the evolutionary relationship of Platyhelminth NRs. NRs are important transcriptional modulators that regulate development, differentiation and reproduction of animals. In this study, NRs are identified in genome databases of thirty-three species including in all Platyhelminth classes (Rhabditophora, Monogenea, Cestoda and Trematoda). Phylogenetic analysis shows that NRs in Platyhelminths follow two different evolutionary lineages: 1) NRs in a free-living freshwater flatworm (Schmidtea mediterranea) and all parasitic flatworms share the same evolutionary lineage with extensive gene loss. 2) NRs in a free-living intertidal zone flatworm (Macrostomum lignano) follow a different evolutionary lineage with a feature of multiple gene duplication and gene divergence. The DNA binding domain (DBD) is the most conserved region in NRs which contains two C4-type zinc finger motifs. A novel zinc finger motif is identified in parasitic flatworm NRs: the second zinc finger of parasitic Platyhelminth HR96b possesses a CHC2 motif which is not found in NRs of all other animals studied to date. In this study, novel NRs (members of NR subfamily 3 and 6) are identified in flatworms, this result demonstrates that members of all six classical NR subfamilies are present in the Platyhelminth phylum. NR gene duplication, loss and divergence in Platyhelminths are analyzed along with the evolutionary relationship of Platyhelminth NRs.

APA, Harvard, Vancouver, ISO, and other styles

39

Oya, Yuki, and Hiroshi Kajihara. "Molecular Phylogenetic Analysis of Acotylea (Platyhelminthes: Polycladida)." Zoological Science 37, no. 3 (May 22, 2020): 271. http://dx.doi.org/10.2108/zs190136.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Cazzaniga, Néstor J., Nicolás Tamburi, Martín Carrizo, and Gustavo F. Ponce. "FeedingGirardia anceps(Platyhelminthes: Tricladida) in the Laboratory." Journal of Freshwater Ecology 17, no. 1 (March 2002): 93–98. http://dx.doi.org/10.1080/02705060.2002.9663872.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Justine, Jean-Lou, Björn A. Afzelius, Göran Malmberg, and Xavier Mattei. "Ultrastructure of Spermiogenesis inAcanthocotyleandMyxinidocotyle(Platyhelminthes, Monogenea, Acanthocotylidae)." Acta Zoologica 74, no. 2 (March 1993): 119–26. http://dx.doi.org/10.1111/j.1463-6395.1993.tb01228.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

42

Zadesenets, Kira S., Andrey V. Polyakov, Alexey V. Katokhin, Viatcheslav A. Mordvinov, and Nikolay B. Rubtsov. "Chromosome morphometry in opisthorchiid species (Platyhelminthes, Trematoda)." Parasitology International 66, no. 4 (August 2017): 396–401. http://dx.doi.org/10.1016/j.parint.2016.07.004.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

LARSSON, K., and U. JONDELIUS. "Phylogeny of Catenulida and support for Platyhelminthes." Organisms Diversity & Evolution 8, no. 5 (December 20, 2008): 378–87. http://dx.doi.org/10.1016/j.ode.2008.09.002.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Halton, D. "Nutritional adaptations to parasitism within the Platyhelminthes." International Journal for Parasitology 27, no. 6 (June 1997): 693–704. http://dx.doi.org/10.1016/s0020-7519(97)00011-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Littlewood, D. T. J., K. Rohde, and K. A. Clough. "The phylogenetic position of Udonella (Platyhelminthes)1." International Journal for Parasitology 28, no. 8 (August 1998): 1241–50. http://dx.doi.org/10.1016/s0020-7519(98)00108-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Riutort, Marta, Kate G. Field, Rudolf A. Raff, and Jaume Baguña. "18S rRNA sequences and phylogeny of platyhelminthes." Biochemical Systematics and Ecology 21, no. 1 (January 1993): 71–77. http://dx.doi.org/10.1016/0305-1978(93)90010-o.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Rohde, K. "The origins of parasitism in the platyhelminthes." International Journal for Parasitology 24, no. 8 (December 1994): 1099–115. http://dx.doi.org/10.1016/0020-7519(94)90185-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Bulnes, Verónica Natalia, Evrim Kalkan, and Selahattin Ünsal Karhan. "Two newPleioplanaspecies (Platyhelminthes, Polycladida, Acotylea) from Turkey." Journal of Natural History 43, no. 37-38 (September 11, 2009): 2273–81. http://dx.doi.org/10.1080/00222930903094662.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Vinobaba, P., and M. Vinobaba. "Monogenean (Platyhelminthes) Parasites of Fish (A Review)." Vingnanam Journal of Science 9, no. 1-2 (February 3, 2012): 30. http://dx.doi.org/10.4038/vingnanam.v9i1-2.4079.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Bruňanská, Magdaléna, Larisa G. Poddubnaya, and Willi E. R. Xylander. "Spermatozoon cytoarchitecture of Amphilina foliacea (Platyhelminthes, Amphilinidea)." Parasitology Research 111, no. 5 (August 30, 2012): 2063–69. http://dx.doi.org/10.1007/s00436-012-3053-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!