8213
Induction of AtP5CS1 mRNA accumulation in salt - treated seedlings involves an immediate early transcriptional response regulated by ABA signalling that is not inhibited by cycloheximide , but abolished by the deficiency of ABA biosynthesis in the aba1 Arabidopsis mutant .
 GENE: AtP5CS1 mRNA; GENE: aba1 Arabidopsis mutant
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: AtP5CS1 mRNA, aba1 Arabidopsis mutant 
Answer:
 GENE: AtP5CS1 mRNA; GENE: aba1 Arabidopsis mutant