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. 2015 Apr 2;10(4):e0122411. doi: 10.1371/journal.pone.0122411

Table 4. Characterization of the found auxotroph mutant with different additives in P2 minimal medium.

Supplementation citB (CAC0972) mutant C acetobutylicum CRG3011
Citrate ˗˗ ++
Iso-citrate ˗˗ ++
α-Ketoglutarate ˗˗ ++
Glutamate ++ ++
Glutamine + ++
Proline ˗˗ ++
Arginine ˗˗ ++
Without supplementation ˗˗ ++

No growth(˗˗), slight growth(+) and normal growth(++).