REMEDIATION: Can Transgenic Plants Root Out Pollutants?
2011
Transgenic Plants That Detect TNT Pollution
publication
Evidence: moderate
Author Information
Author(s): Carol Potera
Primary Institution: Colorado State University
Hypothesis
Can transgenic plants be engineered to sense and respond to pollutants like TNT?
Conclusion
Transgenic plants can effectively detect TNT by changing color, indicating potential for real-world applications.
Supporting Evidence
- Transgenic Arabidopsis and tobacco plants turned white when exposed to TNT.
- Just picomolar or nanomolar levels of TNT activated the de-greening process.
- Second-generation plants inherited the ability to sense TNT.
Takeaway
Scientists have created special plants that change color when they find TNT, which could help keep us safe from explosives.
Methodology
The researchers engineered plants with a gene circuit that triggers a color change in response to TNT exposure.
Limitations
The response time of the plants is currently 2 to 3 hours, which the researchers aim to reduce.
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