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Related Concept Videos

Diversity of Protists IV01:27

Diversity of Protists IV

Amoebozoa represent a diverse group of terrestrial and aquatic protists that utilize lobe-shaped pseudopodia for locomotion and feeding. This characteristic differentiates them from the Rhizaria, which possess threadlike pseudopodia. The primary classifications within Amoebozoa include gymnamoebas, entamoebas, and the plasmodial and cellular slime molds. Phylogenetic evidence indicates that Amoebozoa diverged from a lineage that ultimately gave rise to fungi and animals.Gymnamoebas and...
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Diversity of Protists II01:27

Diversity of Protists II

Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
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Immunological Memory

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Defense Against Bacterial Pathogens

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Cell-mediated Immune Responses

Overview

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Related Experiment Video

Updated: May 9, 2026

Discovery of New Intracellular Pathogens by Amoebal Coculture and Amoebal Enrichment Approaches
09:04

Discovery of New Intracellular Pathogens by Amoebal Coculture and Amoebal Enrichment Approaches

Published on: October 27, 2013

Immunity to amoeba.

Barbara Nowak1, Victoria Valdenegro-Vega1, Philip Crosbie1

  • 1NCMCRS, AMC, University of Tasmania, Launceston, Tasmania, Australia.

Developmental and Comparative Immunology
|August 8, 2013
PubMed
Summary
This summary is machine-generated.

Amoebic Gill Disease (AGD) in fish is often underestimated. This review details the immune response of Atlantic salmon to Neoparamoeba perurans, the parasite causing AGD.

Keywords:
AmoebaAntibodyGene expressionImmuneSalmon

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Area of Science:

  • Aquatic animal health
  • Fish immunology
  • Parasitology

Background:

  • Amoebic infections in fish are challenging to diagnose and often underestimated.
  • These diseases can affect fish gills, internal organs, or become systemic.
  • Host responses vary, including hyperplasia in gills and inflammation with granuloma formation in organs.

Purpose of the Study:

  • To review the immune response of Atlantic salmon to Neoparamoeba perurans.
  • To highlight the challenges in diagnosing amoebic infections in fish.
  • To understand host-pathogen interactions in Amoebic Gill Disease (AGD).

Main Methods:

  • Literature review of studies on Atlantic salmon and Neoparamoeba perurans.
  • Analysis of host immune responses to amoebic infections.
  • Synthesis of information on AGD pathogenesis and diagnosis.

Main Results:

  • Neoparamoeba perurans causes Amoebic Gill Disease (AGD) in Atlantic salmon.
  • Immune responses include inflammatory reactions and granuloma formation.
  • Diagnostic difficulties contribute to underestimation of AGD prevalence.

Conclusions:

  • Understanding the immune response is crucial for managing AGD in aquaculture.
  • Improved diagnostic methods are needed to accurately assess the impact of amoebic infections.
  • This review synthesizes current knowledge on AGD in Atlantic salmon.