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Disease resistance conferred by expression of a gene encoding H2O2-generating glucose oxidase in transgenic potato plants.
Open accessAbstract
Plant defense responses to pathogen infection involve the production of active oxygen species, including hydrogen peroxide (H2O2). We obtained transgenic potato plants expressing a fungal gene encoding glucose oxidase, which generates H2O2 when glucose is oxidized. H2O2 levels were elevated in both leaf and tuber tissues of these plants. Transgenic potato tubers exhibited strong resistance to a bacterial soft rot disease caused by Erwinia carotovora subsp carotovora, and disease resistance was sustained under both aerobic and anaerobic conditions of bacterial infection. This resistance to soft rot was apparently mediated by elevated levels of H2O2, because the resistance could be counteracted by exogenously added H2O2-degrading catalase. The transgenic plants with increased levels of H2O2 also exhibited enhanced resistance to potato late blight caused by Phytophthora infestans. The development of lesions resulting from infection by P. infestans was significantly delayed in leaves of these plants. Thus, the expression of an active oxygen species-generating enzyme in transgenic plants represents a novel approach for engineering broad-spectrum disease resistance in plants.
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Cited by
Plant resistance towards insect herbivores: a dynamic interaction
Gatehouse, J. A. (2002) · New Phytologist · doi:10.1046/j.1469-8137.2002.00519.x · Cited by 704
Jongsri, P., Rojsitthisak, P., Wangsomboondee, T., & Seraypheap, K. (2017) · Scientia Horticulturae · doi:10.1016/j.scienta.2017.06.011 · Cited by 66
Metadata
- Authors
- Wu, G., Shortt, B. J., Lawrence, E. B., Levine, E. B., Fitzsimmons, K. C., & Shah, D. M.
- Venue
- The Plant Cell
- Publisher
- Oxford University Press (OUP)
- Published
- 1995-09
- Volume
- 7
- Issue
- 9
- Pages
- 1357-1368
- ISSN
- 1040-4651 (ISSN-L)
- 1532-298X
- OpenAlex
- W2127442044
- Cited by
- 390
- References
- 0
- FWCI
- 26.24
- Type
- journal article
- Language
- en
- Open access
- green
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- Wu, G., Shortt, B. J., Lawrence, E. B., Levine, E. B., Fitzsimmons, K. C., & Shah, D. M. (1995). Disease resistance conferred by expression of a gene encoding H2O2-generating glucose oxidase in transgenic potato plants. The Plant Cell. https://doi.org/10.1105/tpc.7.9.1357
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