Catalogus

Zoeken

Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.

Boekenmand

Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).

RSS

Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.

log in

Publicaties | Kaarten

nieuwe zoekopdracht

[ meld een fout in dit record ]

mandje (0): toevoegen | toon

---

Effects of methoxychlor, dieldrin and lindane on sea urchin fertilization and early development Pesando, D.; Robert, S.; Huitorel, P.; Gutknecht, E.; Pereira, L.; Girard, J.-P.; Ciapa, B. (2004). Effects of methoxychlor, dieldrin and lindane on sea urchin fertilization and early development. Aquat. Toxicol. 66(3): 225-239. http://dx.doi.org/10.1016/j.aquatox.2003.09.007 In: Aquatic Toxicology. Elsevier Science: Tokyo; New York; London; Amsterdam. ISSN 0166-445X; e-ISSN 1879-1514

---

Beschikbaar in	Auteurs
VLIZ: Non-open access 55658 [ aanvragen ]

---

Trefwoorden

Biological development Cells > Sexual cells > Eggs Cells > Sexual cells > Sperm Chemical compounds > Organic compounds > Hydrocarbons > Halogenated hydrocarbons > Chlorinated hydrocarbons > Dieldrin Chemical compounds > Organic compounds > Hydrocarbons > Halogenated hydrocarbons > Chlorinated hydrocarbons > Lindane Fertilization MED, France, Provence-Cote d'Azur, Villefranche-su Organic compounds > Organic halogen compounds > Organochlorine compounds > Pesticides > Organochlorine pesticides > Insecticides > Organochlorine insecticides > Methoxychlor Pesticide Pesticides Reproduction > Cell division > Mitosis Reproduction > Sexual reproduction > Biological fertilization Reproduction > Sexual reproduction > Fertilization Sea urchins Sea urchins Paracentrotus lividus (Lamarck, 1816) [WoRMS] Villefranche-sur-Mer [Marine Regions] Marien/Kust

Author keywords

pesticide; methoxychlor; dieldrin; lindane; sea urchin; egg; sperm;fertilization; mitosis; early development

---

Auteurs		Top
Pesando, D. Robert, S. Huitorel, P. Gutknecht, E.	Pereira, L. Girard, J.-P. Ciapa, B., correspondent

---

Abstract

We have studied the effects of methoxychlor (MXC), dieldrin, and lindane on fertilization and early development of sea urchin egg. These organochlorine pesticides have often been found in polluted ground and water near agricultural sites, and have therefore been detected from time to time in the food chain and in drinking water. They have been reported to alter various reproduction functions in various animals including marine populations. We observed that the rate of fertilization decreased when the sperm was incubated with dieldrin or lindane. Treatment of eggs with each pesticide did not prevent fertilization, but increased the rate in polyspermy, delayed or blocked the first mitotic divisions, and altered early embryonic development. Moreover, all pesticides could alter several intracellular biochemical pathways that control first mitotic divisions and early development, including intracellular calcium homeostasis, MPF (mitosis promoting factor) activity and formation of the bipolar mitotic spindle. We found that lindane was the most potent of the three pesticides to alter all biochemical events. All these effects were observed at relatively high concentrations. However, bio-accumulation in sediments and aquatic organisms have been reported. Sea urchin eggs may then be in contact with very high concentrations of these pesticides in areas where these pesticides are not handled or stocked properly, and then develop into abnormal embryos.

---

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid

Top | Auteurs