1245
Despite this dependency , however , a B . japonicum fixK mutant did not have the phenotypic characteristics of B . japonicum fixL and fixJ mutants : the fixK mutant was neither Fix - in symbiosis with soybean plants nor defective in anaerobic respiration with nitrate as the terminal electron acceptor .
 GENE: B . japonicum fixK mutant; GENE: B . japonicum fixL; GENE: fixJ mutants; GENE: fixK mutant
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: B . japonicum fixK mutant; GENE: B . japonicum fixL; GENE: fixJ mutants; GENE: fixK mutant