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Leucine Aminopeptidase RNAs, Proteins, and Activities Increase in Response to Water Deficit, Salinity, and the Wound Signals Systemin, Methyl Jasmonate, and Abscisic Acid1
Open accessAbstract
LapARNAs, proteins, and activities increased in response to systemin, methyl jasmonate, abscisic acid (ABA), ethylene, water deficit, and salinity in tomato (Lycopersicon esculentum). Salicylic acid inhibited wound-induced increases of LapA RNAs. Experiments using the ABA-deficient flacca mutant indicated that ABA was essential for wound and systemin induction ofLapA, and ABA and systemin acted synergistically to induce LapA gene expression. In contrast,pin2 (proteinase inhibitor 2) was not dependent on exogenous ABA. Whereas both LapA and le4(L. esculentumdehydrin) were up-regulated by increases in ABA, salinity, and water deficit, only LapAwas regulated by octadecanoid pathway signals. Comparison ofLapA expression with that of thePR-1 (pathogenesis-related 1) andGluB (basic β-1,3-glucanase) genes indicated that these PR protein genes were modulated by a systemin-independent jasmonic acid-signaling pathway. These studies showed that at least four signaling pathways were utilized during tomato wound and defense responses. Analysis of the expression of aLapA1:GUS gene in transgenic plants indicated that theLapA1 promoter was active during floral and fruit development and was used during vegetative growth only in response to wounding, Pseudomonas syringae pv tomatoinfection, or wound signals. This comprehensive understanding of the regulation of LapA genes indicated that this regulatory program is distinct from the wound-induced pin2, ABA-responsive le4, and PR protein genes.
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A rapid alkaline extraction procedure for screening recombinant plasmid DNA
Birnboim, H. C., & Doly, J. (1979) · Nucleic Acids Research · doi:10.1093/nar/7.6.1513 · Cited by 14,686
The N-end rule: functions, mysteries, uses
Varshavsky, A. (1996) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.93.22.12142 · Cited by 859
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Li, L., Zhao, Y., McCaig, B. C., Wingerd, B. A., Wang, J., Whalon, M. E., Pichersky, E., & Howe, G. A. (2004) · The Plant Cell · doi:10.1105/tpc.017954 · Cited by 673
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Metadata
- Authors
- Chao, W. S., Gu, Y.-Q., Pautot, V., Bray, E. A., & Walling, L. L.
- Venue
- Plant Physiology
- Publisher
- Oxford University Press (OUP)
- Published
- 1999-08-01
- Volume
- 120
- Issue
- 4
- Pages
- 979-992
- ISSN
- 0032-0889 (ISSN-L)
- 1532-2548
- OpenAlex
- W1967730208
- Cited by
- 198
- References
- 2
- FWCI
- 15.19
- Type
- journal article
- Language
- en
- Open access
- green
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- CoChat. (2026). Citation check: Leucine Aminopeptidase RNAs, Proteins, and Activities Increase in Response to Water Deficit, Salinity, and the Wound Signals Systemin, Methyl Jasmonate, and Abscisic Acid1. https://app.cochat.ai/papers/10.1104/pp.120.4.979
- The paper
- Chao, W. S., Gu, Y.-Q., Pautot, V., Bray, E. A., & Walling, L. L. (1999). Leucine Aminopeptidase RNAs, Proteins, and Activities Increase in Response to Water Deficit, Salinity, and the Wound Signals Systemin, Methyl Jasmonate, and Abscisic Acid1. Plant Physiology. https://doi.org/10.1104/pp.120.4.979
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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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