Overexpression of Pti5 in tomato potentiates pathogen-induced defense gene expression and enhances disease resistance to Pseudomonas syringae pv. tomato. Academic Article uri icon

abstract

  • The tomato Pti5 gene encodes a pathogen-inducible ethylene response element-binding protein-like transcription factor that interacts with the disease resistance gene product Pto. Overexpression of Pti5 or Pti5-VP16, a translational fusion with a constitutive transcriptional activation domain, in tomato enhanced resistance to Pseudomonas syringae pv. tomato. Constitutive expression of Pti5 or Pti5-VP16 did not affect the basal level of pathogenesis-related gene expression, but it accelerated pathogen-induced expression of GluB and Catalase. The results demonstrate a positive role of Pti5 in defense gene regulation and disease resistance and suggest that a pathogen-activated posttranscriptional regulatory step is necessary for the pathogen induction of the defense gene expression.

altmetric score

  • 3

author list (cited authors)

  • He, P., Warren, R. F., Zhao, T., Shan, L., Zhu, L., Tang, X., & Zhou, J. M.

citation count

  • 69

complete list of authors

  • He, P||Warren, RF||Zhao, T||Shan, L||Zhu, L||Tang, X||Zhou, JM

publication date

  • December 2001