3451
R . nigromaculata were treated with 0 , 0 . 1 , 1 , 10 , and 100 nmol / L of MC - LR for 6 h .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None