17455
Ca2 + - dependent protein kinase11 and 24 modulate the activity of the inward rectifying K + channels in Arabidopsis pollen tubes .
 Chemical: Ca2 +; Chemical: K +
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: Ca2 +; Chemical: K +