The effect of sulphate concentration on the uptake and incorporation of 35Ssulphate inChondrus crispus

摘要

The effect of different sulphate concentrations (2ensp;times;ensp;10minus;5to 10minus;2ensp;M) in the labelling medium on 35Ssulphate uptake and incorporation into National Research Council of Canada gametophytic strain T4Chondrus crispushas been investigated. Sulphate uptake appears to be multiphasic as in higher plants. An apparentKmfor sulphate uptake has been determined over the range of concentrations 10minus;4to 10minus;2ensp;M. Sulphate incorporation is also altered at different sulphate concentrations.