Effects of copper (I) oxide on growth and biochemical compositions of two marine microalgae.
In copper based antifouling (AF) paints Cu (I) oxide was largely used as booster biocide. In this study effect of Cu (I) oxide on two marine microalgae, Tetraselmis suecica and Dunaliella tertiolecta was demonstrated. EC50 (96 hr) concentrations estimated for T. suecica and D. tertiolecta were 1.3 mg l(-1) and 1.34 mg l(-1), respectively. Copper (I) oxide induced changes in growth, chlorophyll, carbohydrate and protein contents were observed in T. suecica and D. tertiolecta. At low concentration of 0.0625 mg l(-1), 3-26% and 1-16% growth stimulation was observed in T. suecica and T. tertiolecta respectively. Increasing Cu (I) oxide concentrations proportionately decreased the carbohydrate and protein contents. This study clearly indicates the toxicity of excessive Cu (I) oxide on growth and biochemical compositions of T. suecica and D. tertiolecta.
Lim
Chi Young
CY
Department of Marine Biotechnology, Soonchunhyang University, Asan City 336 745, South Korea.
Yoo
Yong Hoon
YH
Sidharthan
M
M
Ma
Chae Woo
CW
Bang
In Chul
IC
Kim
Jong Man
JM
Lee
Kwang Soo
KS
Park
Nam Sik
NS
Shin
H W
HW
D003300:Copper / Q000494:pharmacology*; D056890:Eukaryota / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism; D008386:Marine Biology
D003300:Copper; C030973:cupric oxide