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We concluded that an increase in the plastoquinone pool induced by acclimation to high light decreased the sensitivity to atrazine in phytoplankton and we hypothesized that the effect observed was the result of a dilution of atrazine toxicity through increased binding site availability ( quinones ) combined with increased photoregulation processes capacity .
 Chemical: plastoquinone; Chemical: atrazine; Chemical: atrazine; Chemical: quinones
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: plastoquinone; Chemical: atrazine; Chemical: atrazine; Chemical: quinones