Researchers have discovered that common bean plants use a specific immune receptor to detect caterpillar saliva and trigger the release of chemical signals that attract the caterpillar's natural predators. The receptor, called the inceptin receptor, recognizes a peptide fragment (In11) from the plant's own ATP synthase that is regurgitated by feeding caterpillars. This finding reveals the sophisticated molecular mechanism behind plant defense systems and could lead to new agricultural pest control strategies.
Background
Plants have long been known to release volatile organic compounds to attract natural predators of herbivorous insects, but the specific molecular mechanisms triggering this response were not well understood. This research provides new insights into how plants detect and respond to insect herbivory at the molecular level.
- Source
- Ars Technica
- Published
- Jun 3, 2026 at 07:15 PM
- Score
- 8.0 / 10