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| Xu,Shungao; Zou,Xin; Sheng,Xiumei; Zhang,Haifang; Mao,Lingxiang; Du,Hong; Xu,Huaxi; Huang,Xinxiang. |
| Salmonella enterica serovar Typhi z66-positive strains have two different flagellin genes, fliC:d/j and fljB:z66, located on the chromosome and on a linear plasmid, respectively. To investigate the mechanism underlying the expressional regulation of fljB:z66, gene deletion mutants of the regulators FliA, FlhDC, and OmpR were constructed in this study. The expression levels of fliC and fljB:z66 were analyzed by qRT-PCR in the wild-type strain and mutants at high and low osmolarity. The results show that the expression levels of both fljB:z66 and fliC were greatly reduced in fliA and flhDC mutants under both high and low osmotic conditions. In the ompR mutant, the expression levels of fljB:z66, fliC, fliA, and flhD were increased at low osmotic conditions.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Salmonella enterica serovar Typhi; FljB:z66; FlhDC; FliA; OmpR. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000300025 |
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