Dictionary > Amastigote

Amastigote

Definition
noun, plural: amastigotes
(protistology) A cell (or the unicellular organism) that does not have flagella (or cilia)
Supplement
Amastigotes are protist cells that lack flagella or cilia. Trypanosomatids, in particular, have different morphological forms depending on their developmental stage. These morphological forms (or developmental stages) are amastigote, promastigote, epimastigote, trypomastigote, opisthomastigote, and choanomastigote.
Amastigotes appear as non-flagellated cell in contrast to other morphological forms. For instance, trypomastigotes are characterized by the presence of a flagellum that connects to an undulating membrane along the length of the body. Amastigotes lack flagella (or cilia). Nevertheless, they are a common morphological form or developmental stage of trypanosomatids.
Amastigotes are also referred to as the Leishman-Donovan body, the Donovan body, or the leishmanial stage. It is because all Leishmania undergo an amastigote stage in their life cycle. The amastigote of Leishmania belongs to the smallest eukaryotic cells for being particularly small.
Synonym(s):

  • leishmanial (stage)
  • Leishman-Donovan body
  • Donovan body

Compare:

  • promastigote
  • epimastigote
  • trypomastigote
  • opisthomastigote
  • choanomastigote
  • See also:

    Mentioned in:

  • Burdwan fever
  • Herpetomonas
  • Assam fever
  • Black sickness
  • Choanoflagellate
  • Dumdum fever


    You will also like...

    Bryophytes
    Bryophytes

    Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..

    Still freshwater and plants
    Still Freshwater & Plants

    Plants in lentic habitats have features not found in terrestrial plants. They acquired these features as they adapt to t..

    Homo Species
    The Homo Species

    The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..

    Plant Water Regulation
    Plant Water Regulation

    Plants need to regulate water in order to stay upright and structurally stable. Find out the different evolutionary adap..

    Freshwater lake ecosystem
    Freshwater Producers and Consumers

    Freshwater ecosystem is comprised of four major constituents, namely elements and compounds, plants, consumers, and deco..

    Non-Mendelian Inheritance
    Non-Mendelian Inheritance

    In this tutorial, find out more about certain types of inheritance that does not follow the Mendelian inheritance patter..