Effects of chlorinated benzenes on diatom fatty acid composition and quantitative morphology. II. 1,3,5-trichlorobenzene

Cells of the diatom Cyclotella meneghiniana were exposed in a closed system to 0.245 ppm 1,3,5-trichlorobenzene. Response of the diatom was measured by quantitative ultrastructure and fatty acid percent composition over a 5-day period. During that time, 28 significant morphological and 13 significan...

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Bibliographic Details
Published in:Archives of environmental contamination and toxicology 1989-09, Vol.18 (5), p.638-646
Main Authors: Sicko-Goad, L. (The University of Michigan, Ann Arbor, MI), Hall, J, Lazinsky, D, Simmons, M.S
Format: Article
Language:English
Subjects:
ACIDE GRAS
ACIDOS GRASOS
ALGAE
ALGUE
Animal, plant and microbial ecology
Applied ecology
BENCENO
BENZENE
Biological and medical sciences
CELLS
CELLULE
CELULAS
Chlorobenzenes - toxicity
CONTENIDO DE LIPIDOS
CYCLOTELLA MENEGHINIANA
Ecotoxicology, biological effects of pollution
Effects of pollution and side effects of pesticides on plants and fungi
Eukaryota - drug effects
Eukaryota - metabolism
Eukaryota - ultrastructure
FATTY ACIDS
Fatty Acids - metabolism
FITOTOXICIDAD
Fundamental and applied biological sciences. Psychology
Hazardous Substances
LIPID CONTENT
PHYTOTOXICITE
PHYTOTOXICITY
TENEUR EN LIPIDES
TREATMENT
ULTRAESTRUCTURA
ULTRASTRUCTURE
VACUOLA
VACUOLE
VACUOLES
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Summary:Cells of the diatom Cyclotella meneghiniana were exposed in a closed system to 0.245 ppm 1,3,5-trichlorobenzene. Response of the diatom was measured by quantitative ultrastructure and fatty acid percent composition over a 5-day period. During that time, 28 significant morphological and 13 significant fatty acid percent composition changes occurred. Autophagic-like vacuoles were observed consistently through the sampling periods. In comparison with exposure to 1,2,4-trichlorobenzene, 1,3,5-trichlorobenzene exerts fewer effects in the parameters studied, and these effects were observed most frequently in membranous components during the initial eight hours of exposure. It is suggested that the amount of cellular lipid and the relative reactivity of the isomer are responsible for the observed effects.
ISSN:0090-4341
1432-0703
DOI:10.1007/BF01225002