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Harpin, An Elicitor of the Hypersensitive Response in Tobacco Caused by Erwinia amylovora, Elicits Active Oxygen Production in Suspension Cells
Open accessAbstract
Active oxygen (AO) production and a K+/H+ exchange response (XR) are two concurrent early events associated with incompatible plant-bacteria interactions that result in a hypersensitive response (HR). Recently, a protein, termed harpin, produced by Erwinia amylovora has been reported to be the elicitor responsible for the HR caused by this pathogen. Although both the bacterium and harpin are reported to induce XR in tobacco (Nicotiana tabacum) cell suspensions, there have been no reports regarding the concurrent production of AO in this system. Here we report that E. amylovora stimulates the AO response, whereas an E. amylovora mutant that does not produce harpin does not elicit the AO response. In addition, a cell-free preparation of harpin induces AO production. This study indicates that harpin may be the bacterial elicitor of the XR and AO responses during the development of E. amylovora-induced HR.
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Citations
Cited by
THE OXIDATIVE BURST IN PLANT DISEASE RESISTANCE
Lamb, C., & Dixon, R. A. (1997) · Annual Review of Plant Physiology and Plant Molecular Biology · doi:10.1146/annurev.arplant.48.1.251 · Cited by 3,213
Dual action of the active oxygen species during plant stress responses
Dat, J., Vandenabeele, S., Vranov�, E., Van Montagu, M., Inz� *, D., & Van Breusegem, F. (2000) · Cellular and Molecular Life Sciences (CMLS) · doi:10.1007/s000180050041 · Cited by 1,904
Oxidative burst: an early plant response to pathogen infection
WOJTASZEK, P. (1997) · Biochemical Journal · doi:10.1042/bj3220681 · Cited by 1,300
Protection against oxygen radicals: an important defence mechanism studied in transgenic plants
FOYER, C. H., DESCOURVIÈRES, P., & KUNERT, K. J. (1994) · Plant, Cell & Environment · doi:10.1111/j.1365-3040.1994.tb00146.x · Cited by 1,245
Death Don't Have No Mercy: Cell Death Programs in Plant-Microbe Interactions.
Dangl, J. L., Dietrich, R. A., & Richberg, M. H. (1996) · The Plant Cell · doi:10.1105/tpc.8.10.1793 · Cited by 873
Metadata
- Authors
- Baker, C. J., Orlandi, E. W., & Mock, N. M.
- Venue
- Plant Physiology
- Publisher
- Oxford University Press (OUP)
- Published
- 1993-08-01
- Volume
- 102
- Issue
- 4
- Pages
- 1341-1344
- ISSN
- 0032-0889 (ISSN-L)
- 1532-2548
- OpenAlex
- W2141420886
- Cited by
- 192
- References
- 0
- FWCI
- 14.03
- Type
- journal article
- Language
- en
- Open access
- bronze
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- CoChat. (2026). Citation check: Harpin, An Elicitor of the Hypersensitive Response in Tobacco Caused by Erwinia amylovora, Elicits Active Oxygen Production in Suspension Cells. https://app.cochat.ai/papers/10.1104/pp.102.4.1341
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- Baker, C. J., Orlandi, E. W., & Mock, N. M. (1993). Harpin, An Elicitor of the Hypersensitive Response in Tobacco Caused by Erwinia amylovora, Elicits Active Oxygen Production in Suspension Cells. Plant Physiology. https://doi.org/10.1104/pp.102.4.1341
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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