17458
Using patch - clamp analysis , we demonstrated that K ( + ) in currents of pollen tube protoplasts were inhibited by elevated [ Ca ( 2 + ) ] cyt .
 Chemical: K ( + ); Chemical: Ca ( 2 + )
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: K ( + ); Chemical: Ca ( 2 + )