1. And no diphtherotoxin was detected in its soluble metabolites indicating that cell wall defect might affect the production of diphtherotoxin, therefore lost its pathogenic role in exotoxin production.
提示细胞壁缺陷变异可影响白喉棒状杆菌产生白喉毒素蛋白质，从而使其丧失了产生外毒素致病的作用。
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2. And no diphtherotoxin was detected in its soluble metabolites indicating that cell wall defect might affect the production of diphtherotoxin, therefore lost its pathogenic role in exotoxin production.
