title: Effects of copper (I) oxide on growth and biochemical compositions of two marine microalgae.
abstract: 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.
authors.affiliation: Department of Marine Biotechnology, Soonchunhyang University, Asan City 336 745, South Korea.
authors.forename: Chi Young
authors.initials: CY
authors.lastname: Lim
authors.forename: Yong Hoon
authors.initials: YH
authors.lastname: Yoo
authors.forename: M
authors.initials: M
authors.lastname: Sidharthan
authors.forename: Chae Woo
authors.initials: CW
authors.lastname: Ma
authors.forename: In Chul
authors.initials: IC
authors.lastname: Bang
authors.forename: Jong Man
authors.initials: JM
authors.lastname: Kim
authors.forename: Kwang Soo
authors.initials: KS
authors.lastname: Lee
authors.forename: Nam Sik
authors.initials: NS
authors.lastname: Park
authors.forename: H W
authors.initials: HW
authors.lastname: Shin
mesh_terms: D003300:Copper / Q000494:pharmacology*; D056890:Eukaryota / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism; D008386:Marine Biology
chemical_list: D003300:Copper; C030973:cupric oxide