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- Title
Comparison between volatile emissions from transgenic apples and from two representative classically bred apple cultivars.
- Authors
Ute Vogler; Anja Rott; Cesare Gessler; Silvia Dorn
- Abstract
Abstract  While most risk assessments contrast a transgenic resistant to its isogenic line, an additional comparison between the transgenic line and a classically bred cultivar with the same resistance gene would be highly desirable. Our approach was to compare headspace volatiles of transgenic scab resistant apple plants with two representative cultivars (the isogenic âGalaâ and the scab resistance gene-containing âFlorinaâ). As modifications in volatile profiles have been shown to alter plant relationships with non-target insects, we analysed headspace volatiles from apple plants subjected to different infection types by gas chromatography-mass spectrometry. Marked differences were found between healthy and leafminer (Phyllonorycter blancardella) infested genotypes, where emissions between the transgenic scab resistant line and the two cultivars differed quantitatively in four terpenes and an aromatic compound. However, these modified odour emissions were in the range of variability of the emissions recorded for the two standard cultivars that proved to be crucial references.
- Subjects
RISK assessment of transgenic plants; APPLE varieties; COMPARATIVE studies; INSECT-plant relationships; GAS chromatography/Mass spectrometry (GC-MS); QUANTITATIVE research; TRANSGENIC organisms
- Publication
Transgenic Research, 2010, Vol 19, Issue 1, p77
- ISSN
0962-8819
- Publication type
Article
- DOI
10.1007/s11248-009-9294-8