Influence of triazine herbicide exposure on guppies (poecilia sphenops) aromatase activities, altered sex steroid concentration and vitellogenin induction

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Influence of Triazine Herbicide Exposure on Guppies (Poecilia sphenops) Aromatase Activities, Altered Sex Steroid Concentration and Vitellogenin Induction

Atrazine, a herbicide is one the most toxic and sustaining pollutants in aquatic environment. It is detectable in surface water and in underground sources of drinking water. Many studies indicate that atrazine might be a potent endocrine disrupting xenobiotic. There are limited studies have revealed that the effects of atrazine on sex steroids hormones, vitellogenin and induction of aromatase, ...

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Study on induced breeding in ornamental fish,poecilia sphenops

An attempt has been made to determine the effect of Natrum muriaticum, a homeopathic medicine on the weight gain, fecundity, excretion and tissue protein level in Poecilia sphenops (white molly), an ornamental viviparous fish. Natrum muriaticum of 30 centesimal potency of dilution of 0.025% medium was used. The amount of protein was determined in the ovary, liver and muscle of the control and t...

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Genetic and environmental effects on secondary sex traits in guppies (Poecilia reticulata).

Male guppies (Poecilia reticulata) exhibit extreme phenotypic and genetic variability for several traits that are important to male fitness, and several lines of evidence suggest that resource level affects phenotypic expression of these traits in nature. We tested the hypothesis that genetic variation for male secondary sex traits could be maintained by genotype-specific effects of variable re...

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Sex-specific effects of carotenoid intake on the immunological response to allografts in guppies (Poecilia reticulata).

Rarely are the evolutionary origins of mate preferences known, but, recently, the preference of female guppies (Poecilia reticulata) for males with carotenoid-based sexual coloration has been linked to a sensory bias that may have originally evolved for detecting carotenoid-rich fruits. If carotenoids enhance the immune systems of these fishes, as has been suggested for other species, this coul...

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Effects of atrazine on sex steroid dynamics, plasma vitellogenin concentration and gonad development in adult goldfish (Carassius auratus).

Sexually mature goldfish (Carassius auratus) of both sexes were exposed to two doses (100 and 1000 microg/l) of the widely used herbicide atrazine (2-chloro-4-ethylamino-6-isopropylamino-s-triazine) for a period of 21 days and effects on the concentrations of gonad and plasma sex steroids (testosterone (T), 17beta-estradiol (E2) and 11-ketotestosterone (11-KT)), plasma vitellogenin (VTG) and go...

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ژورنال

عنوان ژورنال: Indian Journal of Pharmaceutical Sciences

سال: 2015

ISSN: 0250-474X

DOI: 10.4103/0250-474x.156549