Chestnut trees (Castanca dentata) were wounded in May and inoculated with Cryphonectria parasitica. In August, canker area was measured and the surfaces of longitudinal dissections of stem wood were stained with I2KI to reveal the presence of starch. Sections with the most starch had smaller cankers than sections with no starch. Results show that starch reserves were related to canker size and therefore may play a role in the tree's ability to respond to infection.
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Ostrofsky et al. (1984) studied this question.
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