2645
Results of the time - course experiment showed that maximal expression of 10 out of 17 phenylpropanoid genes analysed occurred at 48h post - inoculation , when decay symptoms started to appear , and mRNA levels either kept constant or decreased after 72h post - inoculation .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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