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Local and systemic signals in the wound response
1Centre for Plant Biochemistry and Biotechnology, University of Leeds, UK.
Seminars in Cell Biology
|April 1, 1993
Summary
Plant injury triggers gene expression changes locally and systemically, indicating signal transmission. This review examines chemical and physical signaling mechanisms involved in plant wound responses.
Area of Science:
- Plant biology
- Molecular biology
- Biochemistry
Background:
- Plant injuries elicit complex responses involving gene expression changes.
- These responses occur both at the wound site and in distant tissues.
- Systemic signaling is crucial for coordinating these effects.
Purpose of the Study:
- To critically review evidence for signaling mechanisms in plant wound responses.
- To explore the roles of both local and systemic signals.
- To synthesize data from various experimental approaches.
Main Methods:
- Literature review of existing studies on plant wound response.
- Analysis of data from in planta wound response studies.
- Examination of mutant analyses and bioassay results.
Main Results:
- Evidence supports the involvement of both chemical and physical signals in plant wound response.
- Local signals initiate the response at the injury site.
- Systemic signals transmit information to unwounded tissues, inducing distant changes.
Conclusions:
- Plant wound responses are mediated by sophisticated local and systemic signaling pathways.
- Understanding these signals is key to comprehending plant defense and adaptation.
- Further research is needed to fully elucidate the molecular nature of these signals.