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Lectin binding sites on Euplotes mutabilis (Tuffrau, 1960) and the implications for food particle selection

Record type: Article

Seven of the nine lectins tested bound to food vacuolar membranes and/or the cytostome of the filter-feeding ciliate Euplotes mutabilis. Strongest binding to the cytostome was found with concanavalin A, which labelled the cytostomes of more than 90% of cells within 10 s, and quickly labelled progressively more of the food vacuolar membrane material (80% of cells had labelled food vacuoles after 50 s exposure to the lectin). Wheat germ agglutinin specifically labelled the basal halves of a particular group of 8-9 frontal membranelles of every cell within 10 s, as well as labelling the cytostome area and food vacuoles of many cells. The specific areas of the cells which bind these lectins are involved in food capture. The frontal membranelles are involved in the interception of particles from the feeding current. The cytostome membrane bears binding sites to lectins of many types; these binding sites may be involved in the selective capture of food particles destined for ingestion, whilst unbound particles may be rejected.

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Citation

Wilks, Sandra A. and Sleigh, Michael A. (2004) Lectin binding sites on Euplotes mutabilis (Tuffrau, 1960) and the implications for food particle selection European Journal of Protistology, 40, (2), pp. 153-162. (doi:10.1016/j.ejop.2004.01.004).

More information

Submitted date: 10 September 2000
Published date: 30 August 2004
Keywords: concanavalin A, Euplotes mutabilis, filter feeding ciliate, food selection, lectins, wheat germ agglutinin

Identifiers

Local EPrints ID: 58178
URI: http://eprints.soton.ac.uk/id/eprint/58178
ISSN: 0932-4739
PURE UUID: 9a605fec-b0a4-40f7-a390-ee768673fc16
ORCID for Sandra A. Wilks: ORCID iD orcid.org/0000-0002-4134-9415

Catalogue record

Date deposited: 12 Aug 2008
Last modified: 17 Jul 2017 14:27

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Contributors

Author: Sandra A. Wilks ORCID iD
Author: Michael A. Sleigh

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