Ref ID : 4521
Yantao Qiu and Weibo Song; Acute Toxicities of Potassium Permanganate, Formalin, and Lugol's Iodine Solution to a Marine Ciliate, Pleuronema coronatum (Ciliophora, Scuticociliatida). Journal of Ocean University of Qingdao 1(2):211-214, 2002
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Acute toxicities of potassium permanganate, formalin, and Lugol's iodine solution to a commonly occurred marine ciliate Pleuronema coronatum (Ciliophora, Scuticociliatida) were measured. Linear regression analysis of the results highlighted the close relationships between doses of the medicines and mortalities of the organisms, thus providing a capability to predict toxicity effects from the dose. Toxic effects of the medicines on the ciliates were described in the present paper, and the median lethal concentrations (LC50 values) were given. Results of measurements indicated that 2hr-LC50 and 12hr-LC50 values of formalin on P. coronatum were 59.00x10E-6 and 43.57x10E-6, while those of Lugol's solutions were 90.13 and 67.84x10E-6 respectively. The tolerance of P. coronatum to formalin is apparently lower than that to Lugol's iodine solution and potassium permanganate is a suitable medicine to kill ciliates in short time.