Demospongiae

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Demospongiae

[dem·ə′spən·jē‚ē]

(invertebrate zoology)

A class of the phylum Porifera, including sponges with a skeleton of one-to four-rayed siliceous spicules, or of spongin fibers, or both.

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Transcriptome profiling of the demosponge Amphimedon queenslandica reveals genome-wide events that accompany major life cycle transitions.

Transcriptomic Basis of Metamorphic Competence in the Salt-Marsh-Dwelling Polychaete Capitella teleta

This material was analyzed by Zea (1987) within a broader assessment of sponges from several areas of the Colombian Caribbean, describing 23 demosponge species for Uraba.

Lista anotada de esponjas (Porifera) de los arrecifes mas meridionales del mar caribe (noroccidente del golfo de Uraba), con la descripcion de nuevos registros para el caribe colombiano

The marine demosponge Chondrosia reniformis Nardo, 1847 incorporates a wide range of foreign materials, including silica, in its ectosome; showing unusual selectivity, C.

Aquaporin in Chondrosia reniformis Nardo, 1847 and its possible role in the interaction between cells and engulfed siliceous particles

This association could be direct, as is the case for some demosponges that attach to one or on both valves (Fig.

Effects of biogenic concretions, epibionts, and endobionts on the relative growth of the clam Venus verrucosa in Bizerta Lagoon, Tunisia

1] were calculated for spicules of the demosponge Ephydatia fluviatilis, with a size of 200-350 [micro]m in length and a diameter of 15 [micro]m (Imsiecke et al.

Involvement of aquaporin channels in water extrusion from biosilica during maturation of sponge siliceous spicules

The first integrins to be cloned from early-diverging metazoans were an a integrin subunit from the demosponge Geodia cydonium (Pancer et al.

Integrins of the starlet sea anemone Nematostella vectensis

Altogether, 56 demosponge species from four different geographic locations were investigated.

The HMA-LMA dichotomy revisited: an electron microscopical survey of 56 sponge species

Symbiotic zooxanthellae in Cinachyra tarentina, a non-boring demosponge.

Zooxanthellar symbionts shape host sponge trophic status through translocation of carbon

The demosponge Amphimedon queenslandica has 8 NK genes in its genome, of which 6 are clustered within a 71-kb stretch of DNA (Fig.

Does the high gene density in the sponge NK homeobox gene cluster reflect limited regulatory capacity?

Okadaic acid, an apoptogenic toxin for symbiotic/parasitic annelids in the demosponge Suberites domuncula.

Chemical defenses: from compounds to communities

Furthermore, unlike those in demosponge collars, microvilli in Sycon are rarely

Feeding in a calcareous sponge: particle uptake by pseudopodia

A fine-structural study of the reproductive biology of Caribbean populations of the demosponge Chondrilla nucula led us to investigate various cell inclusions.