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Related Experiment Video

Updated: May 17, 2026

Bacterial Leaf Infiltration Assay for Fine Characterization of Plant Defense Responses using the Arabidopsis thaliana-Pseudomonas syringae Pathosystem

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Published on: October 1, 2015

Programmed cell death in plants: lessons from bacteria?

Junhui Wang¹, Kenneth W Bayles

¹Institute of Genetics, College of Life Sciences, Zhejiang University, Zijingang Campus, Hangzhou 310058, China.

Trends in Plant Science

|October 23, 2012

Summary

This summary is machine-generated.

Programmed cell death (PCD) control mechanisms show surprising conservation across bacteria, plants, and animals. This suggests a shared evolutionary origin for PCD regulation in diverse life forms.

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Area of Science:

Evolutionary Biology
Cell Biology
Microbiology

Background:

Programmed cell death (PCD) is crucial for development and physiology in animals, plants, and fungi.
The evolutionary conservation of PCD control mechanisms across these kingdoms is debated.
Bacterial PCD proteins share evolutionary links with the plant Bcl-2 family.

Purpose of the Study:

To propose a unifying model for bacterial and plant PCD systems.
To investigate the extent of PCD control conservation across life kingdoms.

Main Methods:

Literature review and synthesis of existing research on PCD proteins.
Comparative analysis of bacterial and plant PCD systems.
Evolutionary linkage analysis of bacterial and Bcl-2 family proteins.

Main Results:

A putative bacterial PCD protein homolog plays a significant role in plant cell death.
Evidence suggests functional conservation of PCD control between bacteria and plants.
Bacterial PCD proteins may be evolutionarily linked to the Bcl-2 family.

Conclusions:

A unifying model for bacterial and plant PCD systems is proposed.
Underlying control of PCD is conserved across at least three kingdoms of life.
This challenges previous assumptions about the divergence of PCD regulation.