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Keywords: sponge
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J Exp Biol (2009) 212 (6): 761–767.
Published: 15 March 2009
... of nervous systems may be understood by studying organisms at key positions in the evolution of animal multicellularity. We have carried out the first analysis of ion channels cloned from a marine sponge, Amphimedon queenslandica . Phylogenetic comparison of sequences encoding for poriferan inward-rectifier...
Includes: Supplementary data
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J Exp Biol (2004) 207 (26): 4515–4524.
Published: 15 December 2004
...Michael Nickel SUMMARY Sponges of the species Tethya wilhelma display rhythmic body contractions, which were analyzed by digital timelapse imaging and semi-automated image analysis. For the first time, differential, quantitative data on sponge behaviour could be obtained. The sponges are able...
Includes: Multimedia, Supplementary data
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J Exp Biol (2003) 206 (18): 3261–3271.
Published: 15 September 2003
...Matthias Wiens; Renato Batel; Michael Korzhev; Werner E. G. Müller SUMMARY To date no nuclear receptors have been identified or cloned from the phylogenetically oldest metazoan phylum, the Porifera (sponges). We show that retinoic acid causes tissue regression in intact individuals...
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J Exp Biol (1999) 202 (9): 1139–1150.
Published: 1 May 1999
...S. P. Leys; G. O. Mackie; R. W. Meech ABSTRACT All-or-none propagated electrical impulses were recorded from the hexactinellid sponge Rhabdocalyptus dawsoni using suction electrodes attached to lumps of aggregated sponge tissue grafted onto the surface of pieces of the same sponge. Impulses were...