US EPA

7419473 

Journal Article 

Toxic Response of Daphnia magna to Microcystis aeruginosa 

Wu, Hao; Jiang, Min; Zhu, Z; Zhao, Yan; Qu, Rui; Liu, J 

2013 

Yes 

Asian Journal of Chemistry
ISSN: 0970-7077
EISSN: 0975-427X 

ASIAN JOURNAL OF CHEMISTRY 

SAHIBABAD 

25 

6 

2965-2969 

English 

10.14233/ajchem.2013.13452 

WOS:000317245900007 

Microcystins produced by M. aeruginosa have adverse effects on aquatic organisms and are recognized as potent stress factors in aquatic ecosystems. As an ideal model organism for aquatic toxicology research, D. magna has been selected in this study to assess the adverse effects of microcystins in incipient stage of cyanobacteria M. aeruginosa bloom. The results show that the contents of total protein in D. magna of experimental groups have no obvious difference compared to the control groups during seven days, nor do the other physiological and biochemistry indicators such as albumin, alkaline phosphatase and total cholesterol. However, the alanine aminotransferase and glycerin trilaurate in D. magna decrease rapidly in experimental groups. Large amounts of lipid droplets are also observed in the body of D. magna fed on M. aeruginosa. The RAPD assay of genome experiment indicates both microcystin-LR and M. aeruginosa will induce DNA changes at the second and third generation of D. magna. The results suggest that M. aeruginosa will affect the D. magna on both DNA and metabolism. 

Microcystis aeruginosa; Microcystins; Physiological and biochemical effect; DNA changes; Daphnia magna