Phototoxicity of benzo(a)pyrene in the green alga Selenastrum capricornutum

Journal Article · Mon Oct 01 00:00:00 EDT 1984 · Environ. Res.; (United States)

DOI:https://doi.org/10.1016/0013-9351(84)90119-1· OSTI ID:6238184

Cody, T E; Radike, M J; Warshawsky, D

The effects of selected polycyclic aromatic hydrocarbons (PAHs) on the growth of the green alga Selenastrum capricornutum in three light regimens were examined. In gold fluorescent light, benzo(a)pyrene (BaP) at 12 mg/liter (48 ..mu..mole/liter), benz(a)anthracene (BaA) at 40 mg/liter (175 ..mu..mole/liter), anthracene (A) at 40 mg/liter (224 ..mu..mole/liter), and 13 metabolites of BaP each at 40 ..mu..g/liter had no effect on algal growth. In cool-white fluorescent light, 30% inhibition of algal growth occurred with 0.1 ..mu..mole/liter BaP, 8.0 ..mu..mole/liter BaA, and 40 ..mu..mole/liter A. BaP at 0.16 mg/liter (0.64 ..mu..mole/liter) totally inhibited growth. BaP concentrations an order of magnitude lower inhibited algal growth in fluorescent blacklight. In cool-white light, 5 of 13 metabolites of BaP (each 40 ..mu..g/liter) inhibited algal growth; 3,6-quinone; 6-hydroxy; 9-hydroxy; 3-hydroxy; and 1,6-quinone. Based on these results, PAHs and metabolites of BaP are selectively phototoxic to S. capricornutum due to the incident light intensity below 550 nm.

• Research Organization: Univ. of Cincinnati Medical Center, OH
• OSTI ID: 6238184
• Journal Information: Environ. Res.; (United States), Vol. 35:1
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANTHRACENE
TOXICITY
BENZANTHRACENE
BENZOPYRENE
VISIBLE RADIATION
RESPONSE MODIFYING FACTORS
ALGAE
EXPERIMENTAL DATA
GROWTH
INHIBITION
METABOLITES
AROMATICS
CONDENSED AROMATICS
DATA
ELECTROMAGNETIC RADIATION
HYDROCARBONS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
PLANTS
RADIATIONS
560303* - Chemicals Metabolism & Toxicology- Plants- (-1987)