Effects of polychlorinated (aroclors 1016 and 1254) on morphogenesis of the pluteus in Arbacia Punctulata
Arbacia eggs were exposed to both Aroclors 1254 and 1016 at concentrations of 0.5, 1.0, 5.0 and 10.0 mg/L. Exposure was initiated 25 minutes prior to insemination and was continuous for the 72-hour observation period used in this study. A Filtered-Sea-Water (FSW) control and an acetone-FSW control were studied. Four morphological categories were used to describe the development of the embryos at 24, 48 and 72-hour intervals: These categories were normal pluteus (p), deformed pluteus (dp), transparent and disintegrating (t/d), and gastrula (g). A two-tailed T-test was employed to test for significant differences in distribution of the four categories studied. Both Aroclors caused significant dysmorphogenesis of the Arbacia embryos, however, at equal concentrations Aroclor 1254 was more lethal.
- Research Organization:
- Tennessee State Univ., Nashville (USA)
- OSTI ID:
- 6043404
- Journal Information:
- J. Tenn. Acad. Sci.; (United States), Vol. 63:2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CHLORINATED AROMATIC HYDROCARBONS
TOXICITY
LARVAE
CELL DIFFERENTIATION
SEA URCHINS
SENSITIVITY
EGGS
ANIMALS
AQUATIC ORGANISMS
AROMATICS
ECHINODERMS
HALOGENATED AROMATIC HYDROCARBONS
INVERTEBRATES
ORGANIC CHLORINE COMPOUNDS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
560300* - Chemicals Metabolism & Toxicology