Advertisement

Influence of Organic Solvents on the Growth of Marine Microalgae

  • Y. Okumura
  • J. Koyama
  • H. Takaku
  • H. Satoh

Abstract

Ninety-six-hour toxicity tests of five organic solvents (methanol, ethanol, acetone, N,N-dimethylformamide [DMF], and dimethyl sulfoxide [DMSO]) on nine species of marine microalgae (Bacillariophyceae; Skeletonema costatum, and Chaetoceros calcitrans, Prasinophyceae; Tetraselmis tetrathele, Haptophyceae; Isochrysis galbana and Pavlova lutheri, Dinophyceae; Prorocentrum minimum, Raphidophyceae; Heterosigma akashiwo, Euglenophyceae; Eutreptiella sp., Chlorophyceae; Dunaliella tertiolecta) were conducted. For D. tertiolecta, T. tetrathele, I. galbana, and P. lutheri, methanol was the least toxic solvent. For S. costatum, C. calcitrans and Eutreptiella sp., DMSO was the least toxic solvent. For Heterosigma akashiwo, DMF was the least toxic solvent. In general, solvent toxicity was ethanol > methanol or acetone > DMF > DMSO. In relation to sensitivity of the microalgae to solvents, D. tertiolecta and T. tetrathele were lower in sensitivity, and Eutreptiella sp. and H. akashiwo were higher in sensitivity than the other species. The no observed effect concentration (NOEC) of acetone, DMF, and DMSO were higher than for ethanol and methanol. Acetone, DMF, and DMSO were suitable for carrier solvents used in toxicity test of water-insoluble chemicals. Excellent regression between logEC50 and logNOEC was obtained (logNOEC = 1.09 × logEC50− 0.84, R2= 0.91). This equation indicated that higher toxicity was higher application factor (EC50/NOEC) than lower toxicity. All application factors were higher than 0.1.

Keywords

DMSO Microalgae Toxicity Test Dunaliella Skeletonema 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag New York Inc. 2001

Authors and Affiliations

  • Y. Okumura
    • 1
  • J. Koyama
    • 2
  • H. Takaku
    • 3
  • H. Satoh
    • 4
  1. 1.Tohoku National Fisheries Research Institute, Fisheries Research Agency, 3-27-5 Shinhama, Shiogama, Miyagi 985-0001, JapanJP
  2. 2.Kagoshima University, 4-50-20 Shimoarata, Kagoshima, Kagoshima 890-0056, JapanJP
  3. 3.Marine Ecology Research Institute, 300 Iwawada, Onjyuku, Isumi, Chiba 299-0051, JapanJP
  4. 4.Tokyo University of Fisheries, 4-5-7 Konan, Minato, Tokyo 108-0075, JapanJP

Personalised recommendations