Silveyra, G.R.; Canosa, I.S.; Rodríguez, E.M.; Medesani, D.A."Effects of atrazine on ovarian growth, in the estuarine crab Neohelice granulata" (2017) Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology. 192:1-6
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Atrazine, a herbicide that is intensively used in Argentina, was assayed to evaluate the alteration of reproduction in a wild species of crustaceans. Adult females of the estuarine crab Neohelice granulata were exposed to formulated atrazine during the 3-month pre-reproductive period. Three atrazine concentrations (0.03, 0.3 and 3 mg/L) were assayed, together with a water dilution control. At the end of the exposure period, several variables concerning the energetic status of animals were measured, such as weight gain, glycemia, and energy reserves in both muscle and hepatopancreas. The gonadosomatic index (GSI) was also determined, as well as the proportion and relative area of each oocyte type in histological sections. Besides, the total content of vitellogenin proteins (Vg) in both ovary and hepatopancreas was measured. A significant (p < 0.05) decrease of glycogen content was observed in muscle, while a significant (p < 0.05) lower area of both previtellogenic and vitellogenic oocytes was verified in the ovary by effect of atrazine, in correspondence with a Vg content significantly (p < 0.05) diminished in the ovary and augmented in the hepatopancreas. Besides, a higher proportion of previtellogenic oocytes were seen by effect of atrazine. Taken together, these results indicate a clear reduction and delay in the ovarian growth of the studied species, during the period at which the ovary normally grows up prior to spawning. On the other hand, a decrease of Vg content was observed at 0.3 and 3 mg/L of atrazine after 24-h in vitro assays carried out with ovarian explants, providing additional evidence about the inhibitory role of this herbicide on the ovarian growth. These results encourage future research on deleterious effects of atrazine on crustacean reproduction. © 2016 Elsevier Inc.


Documento: Artículo
Título:Effects of atrazine on ovarian growth, in the estuarine crab Neohelice granulata
Autor:Silveyra, G.R.; Canosa, I.S.; Rodríguez, E.M.; Medesani, D.A.
Filiación:Dept. of Biodiversity and Experimental Biology, FCEN, University of Buenos Aires, Institute of Biodiversity, Experimental and Applied Biology (IBBEA), CONICET-UBA, Ciudad Universitaria, Pab. II, Buenos Aires, C1428EGA, Argentina
Palabras clave:Atrazine; Crabs; Ovary; Reproduction; Vitellogenin; atrazine; glycogen; vitellogenin; atrazine; glycogen; herbicide; vitellogenin; water pollutant; adult; animal experiment; animal tissue; Argentina; Article; concentration (parameters); controlled study; crab; energy resource; energy transfer; estuarine species; female; glucose blood level; gonadosomatic index; hepatopancreas; histology; in vitro study; molting; mortality; muscle; nonhuman; oocyte; ovary development; parameters; priority journal; reproductive toxicity; spawning; survival; weight gain; animal; Brachyura; dose response; drug effects; energy metabolism; growth, development and aging; metabolism; ovary; reproduction; skeletal muscle; time factor; tissue culture technique; toxicity; water pollutant; Animals; Atrazine; Brachyura; Dose-Response Relationship, Drug; Energy Metabolism; Female; Glycogen; Hepatopancreas; Herbicides; Muscle, Skeletal; Oocytes; Ovary; Reproduction; Time Factors; Tissue Culture Techniques; Vitellogenins; Water Pollutants, Chemical
Página de inicio:1
Página de fin:6
Título revista:Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology
Título revista abreviado:Comp. Biochem. Physiol. C Toxicol. Pharmacol.
CAS:atrazine, 1912-24-9; glycogen, 9005-79-2; Atrazine; Glycogen; Herbicides; Vitellogenins; Water Pollutants, Chemical


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---------- APA ----------
Silveyra, G.R., Canosa, I.S., Rodríguez, E.M. & Medesani, D.A. (2017) . Effects of atrazine on ovarian growth, in the estuarine crab Neohelice granulata. Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology, 192, 1-6.
---------- CHICAGO ----------
Silveyra, G.R., Canosa, I.S., Rodríguez, E.M., Medesani, D.A. "Effects of atrazine on ovarian growth, in the estuarine crab Neohelice granulata" . Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology 192 (2017) : 1-6.
---------- MLA ----------
Silveyra, G.R., Canosa, I.S., Rodríguez, E.M., Medesani, D.A. "Effects of atrazine on ovarian growth, in the estuarine crab Neohelice granulata" . Comparative Biochemistry and Physiology Part - C: Toxicology and Pharmacology, vol. 192, 2017, pp. 1-6.
---------- VANCOUVER ----------
Silveyra, G.R., Canosa, I.S., Rodríguez, E.M., Medesani, D.A. Effects of atrazine on ovarian growth, in the estuarine crab Neohelice granulata. Comp. Biochem. Physiol. C Toxicol. Pharmacol. 2017;192:1-6.