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Published on: July 24, 2018
Assessing effects of transgenic crops on soil microbial communities
1Molecular Ecology, Agroscope Reckenholz-Tänikon Research Station ART, Reckenholzstrasse 191, 8046, Zürich, Switzerland. franco.widmer@art.admin.ch
Concerns about genetically modified plants impacting soil are widespread. This review summarizes 60 studies on transgenic plants, finding varied effects on soil microbes but no clear indicators for risk assessment.
Area of Science:
- Environmental Science
- Soil Biology
- Biotechnology
Background:
- Concerns persist regarding the ecological impact of transgenic plants on soil ecosystems.
- Numerous studies have investigated the effects of genetically engineered traits on soil health.
- This review synthesizes findings from existing literature to assess these impacts.
Purpose of the Study:
- To compile and summarize studies on the effects of transgenic plants on soil.
- To analyze the findings and methodologies of research in this field.
- To identify challenges and future directions for assessing the environmental safety of genetically modified crops.
Main Methods:
- Literature review of 60 studies on transgenic plants and soil effects.
- Analysis of studies covering seven genetically engineered traits (e.g., herbicide tolerance, insect resistance).
- Inclusion of research on sixteen plant species (e.g., corn, soybean, cotton).
Main Results:
- Studies analyzed diverse transgenic traits and plant species, including experimental models.
- Observed effects on soil microbial characteristics indicate sensitive analytical approaches.
- No established classification exists to differentiate acceptable from unacceptable ecological effects.
Conclusions:
- While studies show effects on soil microbes, validated indicators for adverse impacts are needed.
- Future research should focus on developing reliable indicators for risk assessment.
- This is crucial for the regulation and safe commercial release of transgenic plants.
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