Document Detail


The effect of 2,5,2',5'-tetrachlorobiphenyl on growth and death of the cyanobacterium Anabaena flos-aquae.
MedLine Citation:
PMID:  11596749     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effect of 2,5,2',5'-tetrachlorobiphenyl (TcBP) on cell death was investigated in the cyanobacterium Anabaena flos-aquae (Lyngb.) Bréb grown in a P-limited, semicontinuous culture under N2-fixing conditions during a 17-d period. The TcBP was supplied daily to yield final concentrations of 1, 10, and 100 ppb (or ng/ml). At 1 and 10 ppb, the population size of live cells (sum of live vegetative cells and live heterocysts) was not different from that of the TcBP-free controls (p > 0.1, t test) and remained constant both in its absolute value (9.6 X 10(5) cells/ml) and as a percentage of the total population (98.6%). However, at 100 ppb, the population size of live cells declined significantly after the 11th day (8.2 x 10(5) cells/ml, or 96.6% of total population; p < 0.01, t test). The decrease in viable cells was mostly found in vegetative cells. Bioconcentration factor in the cell ([pg TcBP/g dry wt cells]/[pg TcBP/ml]) was 1.23 x 10(5).
Authors:
D Y Lee; G Y Rhee
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Environmental toxicology and chemistry / SETAC     Volume:  20     ISSN:  0730-7268     ISO Abbreviation:  Environ. Toxicol. Chem.     Publication Date:  2001 Oct 
Date Detail:
Created Date:  2001-10-12     Completed Date:  2002-02-07     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  8308958     Medline TA:  Environ Toxicol Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2189-92     Citation Subset:  IM    
Affiliation:
School of Public Health, State University of New York at Albany and Wadsworth Center, New York State Department of Health, 12201-0509, USA. keumsung@hanmail.net
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MeSH Terms
Descriptor/Qualifier:
Anabaena / growth & development*
Cell Culture Techniques
Cell Survival
Environmental Pollutants / adverse effects*
Polychlorinated Biphenyls / adverse effects*
Population Dynamics
Water Pollutants, Chemical / adverse effects*
Grant Support
ID/Acronym/Agency:
P42ES0491307/ES/NIEHS NIH HHS
Chemical
Reg. No./Substance:
0/Environmental Pollutants; 0/Polychlorinated Biphenyls; 0/Water Pollutants, Chemical; 35693-99-3/2,5,2',5'-tetrachlorobiphenyl

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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