摘要：To study the uptake and discharge of Cadmium by chlorella, Chlorella ellipsoidea (C-27) was cultured in Myers-4N medium by the autotrophic culture method, and following facts were observed. 1) When 1μg/ml (as cadmium) of CdCl2 was added to the medium, in which chlorella has been grown for 3 days, cadmium was taken up rapidly, but it was taken up slowly when CdCl2 was added to the medium after chlorella was grown for 5 days. 2) When 1μg/ml (as cadmium) of CdCl2 was added to the medium, in which chlorella was grown for 3 days, cadmium content in the chlorella cells reached a maximum of 1.25×10-8 μg after 12 hr. 3) When chlorella with cells containing cadmium was cultured for 20 days in a cadmium-free medium, slight excretion of cadmium from the cells was observed.
