| 英文摘要 |
Four tryptophan auxotrophs were isolated from Pseudomonas aeruginosa. From the physiological and antibiotic test s, we can conclude these four mutants are independent. However, they can be grouped into two categories according to the cross-feeding data and growth test: Two were partially blocked on tryptophan synthetase, and the other two were inhibited before indole-glycerol phosphate formation. |
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