Gadolinium perturbs expression of skeletogenic genes, calcium uptake and larval development in phylogenetically distant sea urchin species

2018 ◽  
Vol 194 ◽  
pp. 57-66 ◽  
Author(s):  
Chiara Martino ◽  
Caterina Costa ◽  
Maria Carmela Roccheri ◽  
Demian Koop ◽  
Rosaria Scudiero ◽  
...  
Keyword(s):  
Larval Development ◽  
Sea Urchin ◽  
Calcium Uptake

scholarly journals Effects of Glyphosate-Based and Derived Products on Sea Urchin Larval Development

2020 ◽  
Vol 8 (9) ◽  
pp. 661
Author(s):  
Davide Asnicar ◽  
Costanza Cappelli ◽  
Ahmad Safuan Sallehuddin ◽  
Nur Atiqah Maznan ◽  
Maria Gabriella Marin
Keyword(s):  
Larval Development ◽  
Sea Urchin ◽  
Marine Invertebrates ◽  
Parent Compound ◽  
Paracentrotus Lividus ◽  
Marine Species ◽  
Negative Effects ◽  
Aminomethylphosphonic Acid ◽  
Main Degradation Product ◽  
Herbicide Glyphosate

Despite the widespread use of herbicide glyphosate in cultivation, its extensive runoff into rivers and to coastal areas, and the persistence of this chemical and its main degradation product (aminomethylphosphonic acid, AMPA) in the environment, there is still little information on the potential negative effects of glyphosate, its commercial formulation Roundup® and AMPA on marine species. This study was conducted with the aim of providing a comparative evaluation of the effects of glyphosate-based and its derived chemicals on the larval development of the sea urchin Paracentrotus lividus, thus providing new data to describe the potential ecotoxicity of these contaminants. In particular, the effects on larval development, growth and metabolism were assessed during 48 h of exposure from the time of egg fertilization. The results confirm that AMPA and its parent compound, glyphosate have similar toxicity, as observed in other marine invertebrates. However, interestingly, the Roundup® formulation seemed to be less toxic than the glyphosate alone.

scholarly journals Effects of dietary microalgae on growth, survival and fatty acid composition of sea urchin Paracentrotus lividus throughout larval development

Aquaculture ◽  
2012 ◽  
Vol 324-325 ◽  
pp. 250-258 ◽  
Author(s):  
Stefano Carboni ◽  
Julien Vignier ◽  
Mariachiara Chiantore ◽  
Douglas R. Tocher ◽  
Herve Migaud
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Larval Development ◽  
Acid Composition ◽  
Sea Urchin ◽  
Paracentrotus Lividus

scholarly journals Calcium uptake and release by isolated cortices and microsomes from the unfertilized egg of the sea urchin Strongylocentrotus droebachiensis.

1986 ◽  
Vol 102 (6) ◽  
pp. 2205-2210 ◽  
Author(s):  
J A Oberdorf ◽  
J F Head ◽  
B Kaminer
Keyword(s):  
Sea Urchin ◽  
Calcium Uptake ◽  
Inositol Trisphosphate ◽  
Calcium Ionophore ◽  
Strongylocentrotus Droebachiensis ◽  
Cortical Granule ◽  
Free Calcium ◽  
Cortical Region ◽  
Ionophore A23187 ◽  
Dependent Manner

Isolated cortices from unfertilized sea urchin eggs sequester calcium in an ATP-dependent manner when incubated in a medium containing free calcium levels characteristic of the resting cell (approximately 0.1 microM). This ATP-dependent calcium uptake activity was measured in the presence of 5 mM Na azide to prevent mitochondrial accumulation, was increased by oxalate, and was blocked by 150 microM quercetin and 50 microM vanadate (known inhibitors of calcium uptake into the sarcoplasmic reticulum). Cortical regions preloaded with 45Ca in the presence of ATP were shown to dramatically increase their rate of calcium efflux upon the addition of (a) the calcium ionophore A23187 (10 microM), (b) trifluoperazine (200 microM), (c) concentrations of free calcium that activated cortical granule exocytosis, and (d) the calcium mobilizing agent inositol trisphosphate. This pool of calcium is most likely sequestered in the portion of the egg's endoplasmic reticulum that remains associated with the cortical region during its isolation. We have developed a method for obtaining a high yield of purified microsomal vesicles from whole eggs. This preparation also demonstrates ATP-dependent calcium sequestering activity which increases in the presence of oxalate and has similar sensitivities to calcium transport inhibitors; however, the isolated microsomal vesicles did not show any detectable release of calcium when exposed to inositol trisphosphate.

Developmental expression of a cell-surface protein involved in calcium uptake and skeleton formation in sea urchin embryos

1987 ◽  
Vol 122 (2) ◽  
pp. 320-331 ◽  
Author(s):  
Mary C. Farach ◽  
Maria Valdizan ◽  
Helen R. Park ◽  
Glenn L. Decker ◽  
William J. Lennarz
Keyword(s):  
Cell Surface ◽  
Sea Urchin ◽  
Calcium Uptake ◽  
Surface Protein ◽  
Developmental Expression ◽  
Cell Surface Protein ◽  
Sea Urchin Embryos ◽  
A Cell ◽  
Skeleton Formation

scholarly journals Impacts of ocean acidification on development of the meroplanktonic larval stage of the sea urchin Centrostephanus rodgersii

2011 ◽  
Vol 69 (3) ◽  
pp. 460-464 ◽  
Author(s):  
Steve S. Doo ◽  
Symon A. Dworjanyn ◽  
Shawna A. Foo ◽  
Natalie A. Soars ◽  
Maria Byrne
Keyword(s):  
Ocean Acidification ◽  
Larval Development ◽  
Sea Urchin ◽  
Larval Stage ◽  
Larval Growth ◽  
Marine Science ◽  
Eastern Australia ◽  
The Impact ◽  
Near Future

Abstract Doo, S. S., Dworjanyn, S. A., Foo, S. A., Soars, N. A., and Byrne, M. 2012. Impacts of ocean acidification on development of the meroplanktonic larval stage of the sea urchin Centrostephanus rodgersii. – ICES Journal of Marine Science, 69: 460–464. The effects of near-future ocean acidification/hypercapnia on larval development were investigated in the sea urchin Centrostephanus rodgersii, a habitat-modifying species from eastern Australia. Decreased pH (−0.3 to −0.5 pH units) or increased pCO2 significantly reduced the percentage of normal larvae. Larval growth was negatively impacted with smaller larvae in the pH 7.6/1800 ppm treatments. The impact of acidification on development was similar on days 3 and 5, indicating deleterious effects early in development. On day 3, increased abnormalities in the pH 7.6/1600 ppm treatment were seen in aberrant prism stage larvae and arrested/dead embryos. By day 5, echinoplutei in this treatment had smaller arm rods. Observations of smaller larvae in C. rodgersii have significant implications for this species because larval success may be a potential bottleneck for persistence in a changing ocean.

Complete larval development of the sea urchin Lytechinus variegatus fed an artificial feed

Aquaculture ◽  
2004 ◽  
Vol 242 (1-4) ◽  
pp. 217-228 ◽  
Author(s):  
Sophie B. George ◽  
John M. Lawrence ◽  
Addison L. Lawrence
Keyword(s):  
Larval Development ◽  
Sea Urchin ◽  
Lytechinus Variegatus
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