Effect of hexachlorobenzene on some growth parameters of chlorella pyrenoidosa

Chlorella pyrenoidosa was incubated with HCB (0.001-10.0 ppm) in a "light-thermostat" at 30 degrees C for 46 h with continuous light (4000 Lux) and aeration. HCB decreased growth as deduced from measurements of chlorophyll content, dry matter, carbohydrate content, and total nitrogen. Incu...

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Veröffentlicht in:	Bull. Environ. Contam. Toxicol.; (United States) 1976-06, Vol.15 (6), p.670-677
Hauptverfasser:	Geike, F, Parasher, C.D
Format:	Artikel
Sprache:	eng
Schlagworte:	560302 - Chemicals Metabolism & Toxicology- Microorganisms- (-1987) ALGAE AROMATICS Carbohydrate Metabolism CARBOHYDRATES CARBOXYLIC ACIDS CHLORELLA Chlorella - drug effects Chlorella - growth & development Chlorella - metabolism CHLORINATED AROMATIC HYDROCARBONS Chlorobenzenes - pharmacology CHLOROPHYLL Chlorophyll - metabolism DATA Depression, Chemical DOSE-RESPONSE RELATIONSHIPS ELEMENTS EXPERIMENTAL DATA GROWTH HALOGENATED AROMATIC HYDROCARBONS HETEROCYCLIC ACIDS HETEROCYCLIC COMPOUNDS Hexachlorobenzene - pharmacology INFORMATION INHIBITION MICROORGANISMS NITROGEN Nitrogen - metabolism NONMETALS NUMERICAL DATA ORGANIC ACIDS ORGANIC CHLORINE COMPOUNDS ORGANIC COMPOUNDS ORGANIC HALOGEN COMPOUNDS ORGANIC NITROGEN COMPOUNDS PHYTOCHROMES PIGMENTS PLANTS PORPHYRINS RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT Time Factors TOXICITY UNICELLULAR ALGAE
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Zusammenfassung:	Chlorella pyrenoidosa was incubated with HCB (0.001-10.0 ppm) in a "light-thermostat" at 30 degrees C for 46 h with continuous light (4000 Lux) and aeration. HCB decreased growth as deduced from measurements of chlorophyll content, dry matter, carbohydrate content, and total nitrogen. Incubation with HCB for three months in Erlenmeyer-flasks resulted in an increase of chlorophyll over control value in cultures receiving 0.1 and 1.0 ppm HCB. After transfer of the cultures from Erlenmeyer-flasks to growth conditions of a "light-thermostat", growth of the algae was greatly enhanced by all HCB concentrations studied; a concentration of 0.1 ppm being most effective.
ISSN:	0007-4861 1432-0800
DOI:	10.1007/BF01685616