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- Title
Environmental fate and behaviour of antibiotic resistance genes and small interference RNAs released from genetically modified crops.
- Authors
Un Jan Contreras, Sandra; Gardner, Courtney M.
- Abstract
Rising global populations have amplified food scarcity across the world and ushered in the development of genetically modified (GM) crops to overcome these challenges. Cultivation of major crops such as corn and soy has favoured GM crops over conventional varieties to meet crop production and resilience needs. Modern GM crops containing small interference RNA molecules and antibiotic resistance genes have become increasingly common in the United States. However, the use of these crops remains controversial due to the uncertainty regarding the unintended release of its genetic material into the environment and possible downstream effects on human and environmental health. DNA or RNA transgenes may be exuded from crop tissues during cultivation or released during plant decomposition and adsorbed by soil. This can contribute to the persistence and bioavailability in soil or water environment and possible uptake by soil microbial communities and further passing of this information to neighbouring bacteria, disrupting microbial ecosystem services such as nutrient cycling and soil fertility. In this review, transgene mechanisms of action, uses in crops, and knowledge regarding their environmental fate and impact to microbes are evaluated. This aims to encapsulate the current knowledge and promote further research regarding unintended effects transgenes may cause.
- Subjects
UNITED States; NON-coding RNA; DRUG resistance in bacteria; AGRICULTURAL productivity; NUTRIENT cycles; SOIL fertility; TRANSGENIC plants; ECOSYSTEM services
- Publication
Journal of Applied Microbiology, 2022, Vol 133, Issue 5, p2877
- ISSN
1364-5072
- Publication type
Article
- DOI
10.1111/jam.15741