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Related Experiment Video

Updated: May 13, 2026

Tomato Root Transformation Followed by Inoculation with Ralstonia Solanacearum for Straightforward Genetic Analysis of Bacterial Wilt Disease
09:05

Tomato Root Transformation Followed by Inoculation with Ralstonia Solanacearum for Straightforward Genetic Analysis of Bacterial Wilt Disease

Published on: March 11, 2020

CaZAT11 Negatively Fine-Tunes Pepper Immunity to Ralstonia solanacearum by Repressing CaHDZ27.

Shaoliang Mou1,2, Fei Yuan1,2, Tong Luo1,2

  • 1College of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian, PR China.

Plant, Cell & Environment
|May 12, 2026
PubMed
Summary

Pepper plants utilize CaHDZ27 for immunity against Ralstonia solanacearum. A new study reveals CaZAT11 fine-tunes this immunity by repressing CaHDZ27, balancing plant growth and defense.

Keywords:
C2H2‐type zinc finger proteinCaZAT11growthimmunity

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Last Updated: May 13, 2026

Tomato Root Transformation Followed by Inoculation with Ralstonia Solanacearum for Straightforward Genetic Analysis of Bacterial Wilt Disease
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An Effective Inoculation Method for Phytophthora capsici on Black Pepper Plants
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An Effective Inoculation Method for Phytophthora capsici on Black Pepper Plants

Published on: September 16, 2022

Area of Science:

  • Plant Molecular Biology
  • Plant-Pathogen Interactions
  • Plant Immunity

Background:

  • Plant immunity relies on transcription factors for pathogen defense.
  • CaHDZ27 in pepper positively regulates immunity against Ralstonia solanacearum.
  • The regulatory mechanisms fine-tuning CaHDZ27-mediated immunity are not fully understood.

Purpose of the Study:

  • To elucidate the molecular mechanisms regulating CaHDZ27-mediated plant immunity.
  • To identify interacting partners of CaHDZ27 and their roles in immunity.
  • To understand the trade-off between plant growth and defense.

Main Methods:

  • Yeast two-hybrid assays to identify protein interactions.
  • Gene silencing and overexpression in pepper and Nicotiana benthamiana.
  • Analysis of plant growth and susceptibility to R. solanacearum.

Main Results:

  • CaHDZ27 interacts with CaZAT11, a transcriptional repressor.
  • CaZAT11 suppresses CaHDZ27 activity under basal conditions.
  • Upon R. solanacearum infection, CaHDZ27 interacts with CaTFT7, releasing repression and activating immunity.

Conclusions:

  • CaZAT11 acts as a central regulatory node in plant immunity.
  • CaZAT11 modulates the critical trade-off between plant growth and defense.
  • Understanding these interactions provides insights into enhancing crop resilience.