Puneet Varma (Editor)

Syringammina fragilissima

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Class  Xenophyophorea
Scientific name  Syringammina fragilissima
Rank  Species
Family  Syringamminidae
Genus  Syringammina
Phylum  Foraminifera
Order  Psamminida
Syringammina fragilissima Syringammina fragilissima World39s largest unicellular organism
Similar  Xenophyophore, St Kilda house mouse, Salvelinus killinensis, Herbertus borealis, Salvelinus inframundus

Syringammina fragilissima is a xenophyophore found off the coast of Scotland, near Rockall. It is the largest single-cell organism known, at up to 20 centimetres (8 in) across. It was the first xenophyophore to be described, after being discovered in 1882 by the oceanographer John Murray.

Syringammina fragilissima Cruises

The cell grows into hundreds of branched and interconnecting tubes, which secrete an organic cement to collect particles of sediment and sand, forming a crusty structure called the test. As the test grows, the cell withdraws from parts of it, which are then colonised by other organisms, such as nematodes. It is unusual in that the cell is multinucleate (it has multiple nuclei).

Syringammina fragilissima Syringammina fragilissima GeekWeekpl

It is not known how the organism feeds or reproduces. However, it has been shown to have high concentrations of lipids within its cytosol, which suggests that it may feed on bacteria from the sediment that makes up the "sand tubes."

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Syringammina fragilissima Zoologger 39Living beach ball39 is giant single cell New Scientist
Syringammina fragilissima Tuesday 29th June 2010 ECOMAR Ecosystems of the MidAtlantic
Syringammina fragilissima Xenophyophores are the largest singlecelled organism on Earth


Syringammina fragilissima Wikipedia