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The initial response of the sweet potato [ Ipomoea batatas (L.) Lam] to wounding involves deposition of a polymeric material on the inside of several layers of parenchyma cells at the site where the root’s protective periderm has been removed. Analysis of normal periderm and wound tissue indicate that the wound tissue is similar to the normal periderm with respect to aromatic components, but contains only 14% as much suberin.
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Walter et al. (1983) studied this question.
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