Platyhelminthes

Book Review: Interrelationships of the Platyhelminthes

Comparative selenoproteome analysis reveals a reduced utilization of selenium in parasitic platyhelminthes

Background. The selenocysteine(Sec)-containing proteins, selenoproteins, are an important group of proteins present in all three kingdoms of life. Although the selenoproteomes of many organisms have been analyzed, systematic studies on selenoproteins in platyhelminthes are still lacking. Moreover, comparison of selenoproteomes between free-living and parasitic animals is rarely studied. Results...

Are the Platyhelminthes a monophyletic primitive group? An assessment using 18S rDNA sequences.

In most zoological textbooks, Platyhelminthes are depicted as an early-emerging clade forming the likely sister group of all the other Bilateria. Other phylogenetic proposals see them either as the sister group of most of the Protostomia or as a group derived from protostome coelomate ancestors by progenesis. The main difficulty in their correct phylogenetic placing is the lack of convincing sy...

An 18S and 28S-based clock calibration for marine Proseriata (Platyhelminthes)

177 - Helminths, Bedbugs, Scabies, and Lice Infections

Two major phyla are responsible for human disease: Nemathelminthes (roundworms) and Platyhelminthes (flatworms). Nematodes are categorized by their migration route. Enterobius and Trichuris are found intraintestinally, whereas filarial worms live in tissue and lymphatics. Platyhelminthes is further divided into two classes: cestodes, or tapeworms; and trematodes, or flukes. Nemathelminthes (Rou...