Giardia | 合法醫療器材資訊網

GiardiaisagenusofanaerobicflagellatedprotozoanparasitesofthephylumMetamonadathat...Giardialamblia(=G.intestinalis,=G.duodenalis)infecthumansandothermammals,G.murisisfoundfromothermammals,G.ardeaeandG.

Genus of flagellate intestinal eukayotes parasitic in various vertebrate

Giardia ( or ) is a genus of anaerobic flagellated protozoan parasites of the phylum Metamonada that colonise and reproduce in the small intestines of several vertebrates, causing the disease giardiasis. Their life cycle alternates between a swimming trophozoite and an infective, resistant cyst. Giardia were first described by the Dutch microscopist Antonie van Leeuwenhoek in 1681.[3] The genus is named after French zoologist Alfred Mathieu Giard.[4]

Like other diplomonads, Giardia have two nuclei, each with four associated flagella, and were thought to lack both mitochondria and Golgi apparatuses. However, they are now known to possess a complex endomembrane system as well as mitochondrial remnants, called mitosomes, through mitochondrial reduction.[5] [6] [7][8] The mitosomes are no...