期刊
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
卷 67, 期 10, 页码 4914-4918出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/AEM.67.10.4914-4918.2001
关键词
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The cell density-dependent acid sensitivity phenotypes of Escherichia coli strains K-12 and O157:H7 were examined with reference to three possible mechanisms of acid resistance. There was no evidence of any diffusible substance released from dead cells which could influence the cell density-dependent acid survival phenotype. Instead, cell density-dependent acid survival phenotype was associated with induction of glutamate and arginine-decarboxylase acid survival pathways and concomitant availability of glutamate and arginine during acid challenge.
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