Humphreys T. (1970). Biochemical analysis of sponge cell aggregation. In: Fry WG (ed) The Biology of the Porifera. Zoological Society of London, Academic Press London, pp 325-334.

277312

Humphreys T

1970

Publication

Proceedings of the 1st international Sponge Conference

Available for editors   [request]

A factor, called an Aggregation Factor, has been isolated from sponge tissue and appears to function in the normal aggregation of sponge cells. It is demonstrated by its ability to make cells aggregate at low temperatures which normally prevent aggregation. Under these conditions the factor can mimic a very striking normal cellular reaction by causing a mixture of cells from two different species to aggregate species specifically. Bio- chemical experiments indicate that the factor is a large macromolecule which sediments at about 90 S and contains protein and polysaccharide. The question of the specificity of sponge aggregation is discussed. It is pointed out that, in general, sponge aggregation is not species specific. Only in those cases where normal aggregation is completely species specific does the aggregation factor exhibit specificity.

Porifera

RIS (EndNote, Reference Manager, ProCite, RefWorks)
BibTex (BibDesk, LaTeX)

[Back to search]