๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

The mesoglea of hydra. I. Physical and histochemical properties

โœ Scribed by Hausman, Robert E. ;Burnett, Allison L.

Publisher
John Wiley and Sons
Year
1969
Tongue
English
Weight
567 KB
Volume
171
Category
Article
ISSN
0022-104X

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โœฆ Synopsis

The mesoglea of Hydra serves both as a skeleton and as a substratum for cell migration. These functions are made possible in Hydra pseudoligactis by a system of fibers that run along the body column, parallel to the oral-aboral axis, and perpendicular to the oral-aboral axis. The fibers are either a mucoprotein or a close spatial arrangement of protein and polysaccharide. They are 0.3 p in diameter and contain a n elastin-like and collagen-like protein.

Spaced along the fibers are acid mucopolysaccharide-like particles, 0.7 p in diameter, which appear to serve a structural or supportive function. Between the fibers are 2.4 p diameter holes for extension of epithelial cell processes. The remainder of the mesoglea consists of an amorphous gel with a collagen matrix.

The physical arrangement of the fibers alIows the normal movements of hydra and could also control the direction of cell migration, The arrangement of fibers may be a dynamic system under the control of a n enzyme.

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