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The "primitive" microaerophile Giardia intestinalis (syn. lamblia, duodenalis) has specialized membranes with electron transport and membrane-potential-generating functions.

Lloyd, David, Harris, Janine C, Maroulis, Sarah, Wadley, Ron, Ralphs, James R, Hann, Ao C, Turner, Michael P and Edwards, Michael R 2002. The "primitive" microaerophile Giardia intestinalis (syn. lamblia, duodenalis) has specialized membranes with electron transport and membrane-potential-generating functions. Microbiology 148 (Pt 5) , 1349--1354. 10.1099/00221287-148-5-1349

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Abstract

Here it is shown that the flagellated protozoon Giardia intestinalis, commonly regarded as an early branching eukaryote because of its lack of mitochondria, has membraneous structures that partition the cationic, membrane-potential-sensitive fluorophore rhodamine 123. This organism also reduces a tetrazolium fluorogen at discrete plasma-membrane-associated sites. That these functions occur in distinctive specialized membrane systems supports the growing evidence that G. intestinalis may not be primitive, but is derived from an aerobic, mitochondria-containing flagellate.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Publisher: Microbiology Society
ISSN: 1350-0872
Last Modified: 10 Mar 2020 13:45
URI: http://orca.cf.ac.uk/id/eprint/127985

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