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Integrative proteomic and physiological analyses reveal differential responses between high- and low-Cd-accumulating

Qing Wang1, Yuenan Li1, Yixiu Wang1

  • 1College of Resource and Environment, Shanxi Agricultural University, Taigu 030801, China.

Ecotoxicology and Environmental Safety
|July 15, 2025
PubMed
Summary
This summary is machine-generated.

Wheat

Keywords:
CdMolecular mechanismProteomicsWeighted gene co-expression network analysisWheat

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Area of Science:

  • Plant Science
  • Environmental Science
  • Biochemistry

Background:

  • Cadmium (Cd) pollution in soil threatens food safety and human health.
  • Understanding wheat's response to Cd stress is crucial for mitigating risks.

Purpose of the Study:

  • To investigate the physiological and molecular mechanisms of wheat in response to Cd stress.
  • To compare high- and low-Cd-accumulating wheat varieties.

Main Methods:

  • Proteomics and weighted gene co-expression network analysis.
  • Physiological and biochemical analyses of wheat varieties ZM32 (high-Cd) and JM22 (low-Cd).

Main Results:

  • High-Cd wheat (ZM32) showed higher Cd and sulfhydryl substance content, and antioxidant enzyme activity, but lower biomass.
  • Low-Cd wheat (JM22) exhibited up-regulation of specific enzymes and proteins involved in phenylpropanoid biosynthesis, endoplasmic reticulum-associated degradation, benzoxazine biosynthesis, and glutathione metabolism.
  • Candidate genes (CFC21_021767, CFC21_050069, CFC21_026131) associated with Cd resistance were identified.

Conclusions:

  • Differences in gene regulatory networks exist between high- and low-Cd-accumulating wheat under Cd stress.
  • Identified proteins can be targets for genetic improvement to reduce Cd uptake in wheat.
  • Findings contribute to developing strategies for safer wheat production in Cd-contaminated environments.