Oxygen consumption in the fathead minnow (Pimephales promelas rafinesque)—II effects of pH, osmotic pressure, and light level
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چکیده
منابع مشابه
Atrazine reduces reproduction in fathead minnow (Pimephales promelas).
Atrazine, the widely used herbicide, has shown to affect the hypothalamus-pituitary-gonad axis in certain vertebrate species, but few studies have examined reproductive effects of this chemical on fish. Our study was designed to evaluate a population endpoint (egg production) in conjunction with histological (e.g., gonad development) and biochemical (e.g., hormone production) phenotypes associa...
متن کاملHistopathology of fathead minnow (Pimephales promelas) exposed to hydroxylated fullerenes
Hydroxylated fullerenes are reported to be very strong antioxidants, acting to quench reactive oxygen species, thus having strong potential for important and widespread applications in innovative therapies for a variety of disease processes. However, their potential for toxicological side effects is still largely controversial and unknown. Effects of hydroxylated fullerenes C60(OH)24 on the fat...
متن کاملEffects of 17alpha-ethinylestradiol in a fathead minnow (Pimephales promelas) gonadal recrudescence assay.
To contribute to the development and evaluation of a practical and cost-effective in vivo testing system for endocrine disruption (specifically environmental estrogens), the effects of 17alpha-ethinylestradiol (EE2) were assessed in a gonadal recrudescence assay with the fathead minnow (Pimephales promelas). Mature male and female fathead minnows were kept first at 15 degrees C on a 8 h light/1...
متن کاملThe effects of methimazole on development of the fathead minnow, Pimephales promelas, from embryo to adult.
The importance of thyroid hormones in regulating early developmental processes of many amphibian and fish species is well known, but the impacts of exposure to disrupters of thyroid homeostasis during the embryo-larval-juvenile transitions are unclear. To investigate these impacts, fathead minnows, Pimephales promelas, were exposed to a model thyroid axis disrupter, methimazole, an inhibitor of...
متن کاملCharacterisation and expression of β1-, β2- and β3-adrenergic receptors in the fathead minnow (Pimephales promelas).
Complimentary DNAs for three beta-adrenergic receptors (βARs) were isolated and characterised in the fathead minnow. The encoded proteins of 402 (β(1)AR), 397 (β(2)AR) and 434 (β(3)AR) amino acids were homologous to other vertebrate βARs, and displayed the characteristic seven transmembrane helices of G Protein-coupled receptors. Motifs and amino acids shown to be important for ligand binding w...
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ژورنال
عنوان ژورنال: Comparative Biochemistry and Physiology Part A: Physiology
سال: 1979
ISSN: 0300-9629
DOI: 10.1016/0300-9629(79)90024-0