| Environmental risk assessment of genetically engineered herbicide-tolerant Zoysia japonica. | |
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MedLine Citation:
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PMID: 18178894 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Herbicide-tolerant Zoysia grass (Zoysia japonica Steud.) has been generated previously through Agrobacterium tumefaciens-mediated transformation. The genetically modified (GM) Zoysia grass survived Basta spraying and grew to maturity normally while the wild-type (WT) grass stopped growing and died. GM Zoysia grass will permit more efficient weed control for various turf grass plantings such as home lawns, golf courses, and parks. We examined the environmental/biodiversity risks of herbicide-tolerant GM Zoysia before applying to regulatory agencies for approval for commercial release. The GM and WT Zoysia grass' substantial trait equivalence, ability to cross-pollinate, and gene flow in confined and unconfined test fields were selectively analyzed for environmental/biodiversity effects. No difference between GM and WT Zoysia grass in substantial traits was found. To assess the potential for cross-pollination and gene flow, a non-selective herbicide, Basta, was used. Results showed that unintended cross-pollination with and gene flow from GM Zoysia grass were not detected in neighboring weed species examined, but were observed in WT Zoysia grass (on average, 6% at proximity, 1.2% at a distance of 0.5 m and 0.12% at a radius of 3 m, and 0% at distances over 3 m). On the basis of these initial studies, we conclude that the GM Zoysia grass generated in our laboratory and tested in the Nam Jeju County field does not appear to pose a significant risk when cultivated outside of test fields. |
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Authors:
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T W Bae; E Vanjildorj; S Y Song; S Nishiguchi; S S Yang; I J Song; T Chandrasekhar; T W Kang; J I Kim; Y J Koh; S Y Park; J Lee; Y-E Lee; K H Ryu; K Z Riu; P-S Song; H Y Lee |
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Publication Detail:
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Type: Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't Date: 2008-01-04 |
Journal Detail:
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Title: Journal of environmental quality Volume: 37 ISSN: 0047-2425 ISO Abbreviation: J. Environ. Qual. Publication Date: 2008 Jan-Feb |
Date Detail:
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Created Date: 2008-01-07 Completed Date: 2008-03-25 Revised Date: 2009-11-23 |
Medline Journal Info:
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Nlm Unique ID: 0330666 Medline TA: J Environ Qual Country: United States |
Other Details:
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Languages: eng Pagination: 207-18 Citation Subset: IM |
Affiliation:
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Faculty of Biotechnology, Cheju National University, Jeju 690-756, Korea. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Antigens, Plant / immunology Female Gene Flow Herbicide Resistance* Humans Hybridization, Genetic Hypersensitivity / etiology, immunology Korea Male Phenotype Plants, Genetically Modified / anatomy & histology, physiology* Poaceae / anatomy & histology, physiology* Pollen / immunology Pollination Risk Assessment Skin Tests Wind |
| Chemical | |
Reg. No./Substance:
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0/Antigens, Plant |
| Comments/Corrections | |
Erratum In:
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J Environ Qual. 2009 Nov-Dec;38(6):2480 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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