Abstract

Corn roots or washed corn root tissue exposed to cold shock absorb 20 to 24% more 45Ca2+ into a nonexchangeable phase than control roots. Addition to fusicoccin largely prevents this additional calcium influx. The results are discussed in relation to injury-induced changes in membrane permeability of root cell membranes.

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Supported by the National Science Foundation (PCM-79-13406) and the United States Department of Energy (DE-AC02-76EV00790).

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