Intro 
Species 
Specimens 
Distribution 
Checklist 
Sources 
Log in 

Porifera source details

Boury-Esnault, N. (1972). Une structure inhalante remarquable des Spongiaires: le crible. Etude morphologique et cytologique. Archives de Zoologie expérimentale & générale. 113 (1): 7-23.
472509
Boury-Esnault, N.
1972
Une structure inhalante remarquable des Spongiaires: le crible. Etude morphologique et cytologique.
Archives de Zoologie expérimentale & générale
113 (1): 7-23
Publication
Available for editors  PDF available [request]
The inhalant orifices of the sponges aquiferous system can in some species, joïn up and make stable inhalant structures. The study, in 6 species, of the sieve, example of such a structure, shows that it is an ectosomic differentiation produced by a modification of the cellular topography relating not only to the superficial inhalant area but also the underlying cavity. The inhalant sieved lamina shows an organisation in three characteristic zones: an upper zone is essentially constituted by an exopinacocyte layer, a middle zone with contractile spindle-shaped cells forming sphincter, an inner zone is involvjng archeocytes, globiferous cells, vacuoles-cells and limited by prosopinacocytes. The wall of the vestibule is made interlocking of the sieved lamina by a sphincter which is in continuily with the one of the lamina. A spicule-stratum limits the whole which is perfectly individualised in the ectosome. The "inhalant organ" so defined tends to a better control of the water-current.
Histology, Cytology
RIS (EndNote, Reference Manager, ProCite, RefWorks)
BibTex (BibDesk, LaTeX)
Date
action
by
2023-10-30 14:59:41Z
created

 Biology

This species is characterized by the presence of pore-sieves as most of the species of this family [details]



Website and databases developed and hosted by VLIZ · Page generated 2024-03-02 · contact: Nicole de Voogd