Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"HrpL"”.
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Molecular mechanisms underlying regulation of type III secretion system upstream of the master regulator HrpL in Erwinia amylovora
… (T3SS). It has been previously demonstrated that HrpL, an ECF sigma factor, is the master regulator of hrp-T3SS. Recently, it is reported that expression of hrpL is under the control of sigma 54 complex, including σ54 (RpoN), its modulation protein YhbH and σ54-enhancer binding protein HrpS. In …
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Characterization of major virulence regulators of Erwinia amylovora
… binding proteins, and the master regulator HrpL, which belongs to the ECF subfamily of σ factors. Other sigma factors characterized included RpoN, a nitrogen limitation σ54 factor, and its modulation protein YhbH. Our results showed that mutations in hrpS, hrpL, rpoN and yhbH resulted in …
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Identification and characterization of type III secretion inhibitors in Erwinia amylovora, the causal agent of fire blight of apple and pear
… of genes in E. amylovora T3SS cluster including hrpL as well as effectors including avrRpt2 and hopC1 were down-regulated more than two folds by both chemicals # 3 and # 9. Chemical # 3 also suppressed the transcription of all amylovoran biosynthesis genes. Interestingly, the most significant …
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Posttranscriptional and posttranslational regulation of virulence in erwinia amylovora
… not bind to the transcripts of T3SS activators, hrpL and hrpS. Transcriptomic analyses under the T3SS-inducing condition revealed that mutation in csrA led to differential expression in more than 20% genes in the genome. Of these, T3SS genes and those required for cell growth and viability were …