---
title: 'Agriculture Daily Summary: What Happened on October 20, 2026'
headline: Engineered plants use OMY to signal bacteria
description: Researchers tested the signal in three plant species and found it could
  activate bacterial gene expression.
url: https://thebench.bio/news/agriculture/2026-10-20
topic: agriculture
date: '2026-10-20'
covers:
- '2026-10-20'
date_published: '2026-10-20T12:03:22Z'
date_modified: '2026-10-20T12:03:22Z'
tags:
- Manufacturing
sources: 1
publisher: TheBench.Bio
---

# Agriculture Daily Summary: What Happened on October 20, 2026

**Engineered plants use OMY to signal bacteria**

Researchers tested the signal in three plant species and found it could activate bacterial gene expression.

## Today in brief

Engineered Arabidopsis, tomato and poplar produced O-methyl-L-tyrosine (OMY), which triggered gene expression in associated bacteria. [1]

## Plants signal bacteria with OMY

Researchers engineered Arabidopsis, tomato and poplar to produce OMY, a chemical signal that triggered gene expression in associated bacteria. [1] Engineered Bacillus subtilis showed an OMY-dependent protein-synthesis range exceeding 3,000-fold. [1]

## The day in numbers

- **More than 3,000-fold**: Range of OMY-dependent protein synthesis in engineered Bacillus subtilis. [1]

## Sources

1. [Genetic code expansion enables plant-directed control of bacterial activity](<https://www.nature.com/articles/s41587-026-03360-5>), Nature Biotechnology, 2026-10-20

---

TheBench.Bio wrote this from the reporting cited above, with a language model drafting and editing.

[1]: <https://www.nature.com/articles/s41587-026-03360-5>