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Biol Bull 104: 138-145. (April 1953)
© 1953 Marine Biological Laboratory
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RESPIRATION AND IODINE UPTAKE IN ASCOPHYLLUM

SALLY KELLY 1

1 Marine Biological Laboratory, Woods Hole, Mass.

1. Iodine uptake by Ascophyllum was found to be related to the respiratory process on the basis of the following experiments: the uptake of radioactive iodine was stimulated by glucose and sucrose and was inhibited by iodoacetic acid, azide and cyanide. These substances and, in addition, malic and succinic acids and fluoride in turn influenced respiration of the segments, suggesting that they function as respiratory intermediates and inhibitors in the species.

2. Maintaining the segments in nitrogen decreased their radioactive iodine uptake.






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Copyright © 1953 by the Marine Biological Laboratory.