Effects of Different Nutrient and Trace Metal Concentrations on Growth of the Toxic Dinoflagellate Gymnodinium catenatum Isolated from Korean Coastal Waters

Sustainability

Zhun Li¹  SeokJin Oh²  Jinik Hwang³  KyongHa Han⁴  JooYeon Youn⁴  KyeongYoon Kwak⁴  HyeonHo Shin⁴  HyunJung Kim⁴  MinHo Seo⁵  SangDeuk Lee⁶  SukMin Yun⁶  Weol-Ae Lim⁷  JongWoo Park⁷ 

[1] Biological Resource Center/Korean Collection for Type Cultures (KCTC), Korea Research Institute of Bioscience and Biotechnology, Jeonbuk 56212, Korea;Department of Oceanography, Pukyong National University, Busan 608-705, Korea;Environment and Resource Convergence Center, Advanced Institute of Convergence Technology, Suwon 16229, Korea;Library of Marine Samples, Korea Institute of Ocean Science and Technology, Geoje 656-830, Korea;Marine Ecology Research Center, Yeosu 59697, Korea;Nakdonggang National Institute of Biological Resources (NNIBR), Sangju 37242, Korea;National Institute of Fisheries Science, Busan 619-705, Korea;

关键词: growth rate;    nitrate;    phosphate;    vitamin B₁;    copper;    iron;   

DOI  :  10.3390/su12124992

来源: DOAJ

【 摘 要 】

The effects of the addition of nutrients (nitrate: N; phosphate: P; and vitamin B₁) and trace metals (iron: Fe; Copper: Cu; and selenium: Se) on the growth of Gymnodinium catenatum, which was isolated from Korean coastal waters, were investigated. The Korean isolate of G. catenatum grew under a wide range of concentrations of N and P. Whilst high concentrations of N (> N: P ratio of 23.5) did not stimulate the growth rate, an enhanced growth rate and cell density were observed with the addition of P. The experimental addition of vitamin B₁ revealed that G. catenatum is not dependent on vitamin B₁ for growth. Moreover, the addition of Fe and Cu resulted in no significant differences in the growth patterns and rates of G. catenatum between the controls and treatments. It is thus possible that growth of the Korean isolate of G. catenatum does not require high concentrations of Fe and Cu. However, the cell densities were enhanced in the stationary phases of treatments upon addition of Se, and the maximum cell densities were higher than those in the culture experiments upon additions of other nutrient and trace metals. Our findings indicate that G. catenatum prefers P and Se for proliferation, rather than other nutritional sources.

【 授权许可】

Unknown