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Gene Review

hrpG  -  response regulator transcription regulator...

Ralstonia solanacearum GMI1000

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Disease relevance of hrpG

  • prhJ and hrpG, two new components of the plant signal-dependent regulatory cascade controlled by PrhA in Ralstonia solanacearum [1].

High impact information on hrpG

  • From these results, we propose a regulatory cascade in which plant cell signal(s) sensed by PrhA are transduced to the prhJ gene, whose predicted product controls hrpG gene expression [1].
  • The hrpB and hrpG regulatory genes of Ralstonia solanacearum are required for different stages of the tomato root infection process [2].
  • The sequence of a 2.9-kb EcoRV-EcoRI DNA fragment containing mainly group XI revealed five ORFs, designated hrpC, hrpD, hrpE, hrpF, and hrpG, predicted to encode proteins of 29,096, 15,184, 21,525, 7,959, and 13,919 Da, respectively [3].

Biological context of hrpG

  • Here, we report on the identification of two regulatory genes, hrpG and prhJ, located at the right-hand end of the hrp gene cluster, that are required for full pathogenicity [1].
  • Here, we show phenotypes of R. solanacearum mutant strains disrupted in the prhJ, hrpG, or hrpB regulatory genes with respect to root infection and vascular colonization in tomato plants [2].

Other interactions of hrpG

  • This indicates that bacterial multiplication at root infection sites and transit through the endodermis constitute critical stages in the infection process, in which hrpB and hrpG genes are involved [2].


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