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Harpin, Elicitor of the Hypersensitive Response Produced by the Plant Pathogen Erwinia amylovora
Abstract
A proteinaceous elicitor of the plant defense reaction known as the hypersensitive response was isolated from Erwinia amylovora , the bacterium that causes fire blight of pear, apple, and other rosaceous plants. The elicitor, named harpin, is an acidic, heat-stable, cell-envelope-associated protein with an apparent molecular weight of 44 kilodaltons. Harpin caused tobacco leaf lamina to collapse and caused an increase in the pH of bathing solutions of suspension-cultured tobacco cells. The gene encoding harpin ( hrpN ) was located in the 40-kilobase hrp gene cluster of E. amylovora , sequenced, and mutated with Tn 5 tac1. The hrpN mutants were not pathogenic to pear, did not elicit the hypersensitive response, and did not produce harpin.
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Cites
Improved tools for biological sequence comparison.
Pearson, W. R., & Lipman, D. J. (1988) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.85.8.2444 · Cited by 11,227
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Cornelis, G. R., & Van Gijsegem, F. (2000) · Annual Review of Microbiology · doi:10.1146/annurev.micro.54.1.735 · Cited by 782
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Copping, L. G., & Menn, J. J. (2000) · Pest Management Science · doi:10.1002/1526-4998(200008)56:8<651::aid-ps201>3.0.co;2-u · Cited by 731
Alfano, J. R., & Collmer, A. (1997) · Journal of Bacteriology · doi:10.1128/jb.179.18.5655-5662.1997 · Cited by 527
Self-citationBrencic, A., & Winans, S. C. (2005) · Microbiology and Molecular Biology Reviews · doi:10.1128/mmbr.69.1.155-194.2005 · Cited by 434
Non‐host resistance in plants: new insights into an old phenomenon
NÜRNBERGER, T., & LIPKA, V. (2005) · Molecular Plant Pathology · doi:10.1111/j.1364-3703.2005.00279.x · Cited by 346
Metadata
- Authors
- Wei, Z.-M., Laby, R. J., Zumoff, C. H., Bauer, D. W., He, S. Y., Collmer, A., & Beer, S. V.
- Venue
- Science
- Published
- 1992-07-03
- Volume
- 257
- Issue
- 5066
- Pages
- 85-88
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2048101669
- Cited by
- 804
- References
- 1
- FWCI
- 35.92
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wei, Z.-M., Laby, R. J., Zumoff, C. H., Bauer, D. W., He, S. Y., Collmer, A., & Beer, S. V. (1992). Harpin, Elicitor of the Hypersensitive Response Produced by the Plant Pathogen Erwinia amylovora. Science. https://doi.org/10.1126/science.1621099
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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