nematode

Examples of nematode in the following topics:

• Nematodes

  • Nematodes, or roundworms, are the most diverse phylum of pseudocoelomates and one of the most diverse animal phyla.
  • Nematodes are characterized by the presence of a tubular digestive system with openings at both ends.
  • Nematodes are also capable of exhibiting parasitic behavior that contribute to digestive system diseases.
  • Enterobius, referred to as pinworm, is a type of parasitic nematode that is commonly found in the intestine of children.
  • Compare and contrast mechanisms of infection for the parasitic nematodes: Ascaris lumbricoides and Enterobius

• Characteristics of Helminths

  • The parasitic intestinal helminths can be divided into three groups which include Nematodes (roundworms), Cestodes (tapeworms), and Trematodes (flukes).
  • It should be noted, however, that blood and tissue roundworms (Nematodes) exist that will not be discussed in this section.
  • The three commonly studied and well-known groups include the intestinal Nematodes (round worms), tapeworms (Cestodes), and blood, tissue and organ flukes (Trematodes).
  • This summary does not contain an exhaustive compilation of all human parasitic nematodes, but merely a representation of several species.

• Classification and Identification of Helminths

  • Nematodes are characterized by a cylindrical body shape and do indeed have a body cavity.
  • The sex of nematodes is dioecious (distinct male and female organisms).

• Helminths

  • Poorly washed vegetables eaten raw may contain eggs of nematodes such as Ascaris, Enterobius, Thichuris, and or cestodes such as Taenia, Hymenolepis, and Echinococcus.
  • Schistosomes and nematodes such as hookworms (Ancylostoma an Necator) and Strongyloides can penetrate the skin.

• Verrucomicrobia

  • A number of as-yet uncultivated species have been identified in association with eukaryotic hosts including extrusive explosive ectosymbionts of protists and endosymbionts of nematodes residing in their gametes.

• Antiprotozoan and Antihelminthic Drugs

  • Helminths are parasitic worms and are divided into three major groups including: flatworms (platyhelminths); thorny-headed worms (acanthocephalins); and roundworms (nematodes and hookworms).

• Plant Virus Life Cycles

  • These are normally insects, but some fungi, nematode worms and single-celled organisms have been shown to be vectors.

• Subfields of Microbiology

• Parasitic Skin Diseases

  • Cutaneous larva migrans (abbreviated CLM) is a skin disease in humans caused by the larvae of various nematode parasites of the hookworm family (Ancylostomatidae).

• Plant DNA Viruses

  • More often, viruses are spread through vector intermediaries such as insects, nematodes, or protozoa which pick up viruses by feeding on infected plants, and then spread the virus to healthy plants.