..., Strongylocentrotus purpuratus . We developed a skeleton re-mineralization assay, in which the skeleton was dissolved in live larvae followed by a re-mineralization over a few days. During skeleton re-mineralization, energetic costs were estimated through the measurement of key metabolic parameters including whole...

... the righting response of the sea urchin Strongylocentrotus purpuratus , it is not known whether this is specific to this behavior, in this species, or whether dopaminergic systems are needed in general for echinoderm behaviors. We found that haloperidol inhibited multiple different behavioral responses...

... in Strongylocentrotus purpuratus . Measurements of in vivo digestion rates in the transparent sea urchin larva were not altered by pharmacological inhibition of trypsin (using soybean trypsin inhibitor) or serine proteases (aprotinin), suggesting that proteases are not critically involved in the initial step...

..., we measured larval arm retraction in response to different THs (T4, T3, rT3, Tetrac) and assessed cell death in larvae using three different methods (TUNEL, YO-PRO-1 and caspase-3 activity) in the sea urchin Strongylocentrotus purpuratus . We also compared the extent of PCD in response to TH...

.... Echinoderm Glycine receptor nAChR GABA receptor Dopamine receptor Adrenergic receptor Strongylocentrotus purpuratus University of the South University of the South Echinoderms, particularly sea urchins, are an important model organism in developmental biology ( Adonin...

... intertidal zones ranges from 5 to 25 m s −1 depending on shoreline topography and wave height ( Denny, 1985 ; Gaylord, 1999 ; Jones and Demetropoulos, 1968 ). A recent study on the purple sea urchin Strongylocentrotus purpuratus showed the lack of challenging environmental conditions associated...

... in a situation reminiscent of long-term potentiation in learning and memory. Dendraster excentricus Hydrodynamics Larval settlement Sensory ecology Strongylocentrotus purpuratus Surf zone Fluid mixing and the turbulent processes that underlie it are known to influence organism performance...

... in the process and could thus undergo repeated cycles of efflux and re-entry. Here we use embryos of the purple sea urchin, Strongylocentrotus purpuratus , as a model to determine transport costs and benefits under environmentally relevant xenobiotic concentrations. Strikingly, our results show that efflux...

... gastrulation and the initiation of spiculogenesis, two crucial developmental processes in the purple sea urchin, Strongylocentrotus purpuratus . Embryos were reared at the current, accepted oceanic CO 2 concentration of 380 microatmospheres (μatm), and at the elevated levels of 1000 and 1350 μatm, simulating...

... urchin Strongylocentrotus purpuratus that encodes two copies of an NGIWYamide-like peptide:Asn-Gly-Phe-Phe-Phe-(NH 2 ) or NGFFFamide. Interestingly, the C-terminal region of the NGFFFamide precursor shares sequence similarity with neurophysins, carrier proteins hitherto uniquely associated...

.... An alternative strategy for identification of echinoid SALMFamides was provided by sequencing the genome of the sea urchin Strongylocentrotus purpuratus . Analysis of whole-genome shotgun sequence data using the Basic Local Alignment Search Tool (BLAST) identified a contig (347664) that contains a coding region...

...Lori A. Clow; David A. Raftos; Paul S. Gross; L. Courtney Smith SUMMARY The purple sea urchin Strongylocentrotus purpuratus expresses a homologue of complement component C3 (SpC3), which acts as a humoral opsonin. Significantly increased phagocytic activity was evident when yeast target cells were...

... (the sodium pump) and rate of oxygen consumption were measured during embryonic and early larval development for two species of sea urchin, Strongylocentrotus purpuratus and Lytechinus pictus . Total ( in vitro ) Na + /K + -ATPase activity increased during development and could potentially account for up...

... species is included in this study to serve as a phylogenetic comparison. Strongylocentrotus purpuratus (Stimpson), the purple urchin, is found both intertidally and subtidally on moderately and fully exposed rocky shores of the eastern North Pacific from Baja California to Vancouver Island ( Morris et...

... . Biol. Bull. mar. biol. Lab., Woods Hole 102 , 185 – 199 . 10.2307/1538367 Shilling , F. M. and Manahan , D. T. ( 1990 ). The energetics of early development for the sea urchins Strongylocentrotus purpuratus and Lytechinus pictus and the crustacean Artemia sp . Mar. Biol...

..., if any, of this ‘pluriphosphagen’ phenomenon remains obscure. Fig. 4. 31 P-n.m.r. spectra of seven different preparations of Strongylocentrotus purpuratus lantern protractor muscle showing the portion of each spectrum containing the creatine phosphate (CP) and arginine phosphate (AP) resonances...