Hydrogen peroxide is generated systemically in plant leaves by wounding and systemin via the octadecanoid pathway.

Abstract

Hydrogen peroxide (H2O2) generated in response to wounding can be detected at wound sites and in distal leaf veins within 1 hr after wounding. The response is systemic and maximizes at about 4-6 hr in both wounded and unwounded leaves, and then declines. The timing of the response corresponds with an increase in wound-inducible polygalacturonase (PG) mRNA… (More)

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@article{OrozcoCrdenas1999HydrogenPI, title={Hydrogen peroxide is generated systemically in plant leaves by wounding and systemin via the octadecanoid pathway.}, author={Martha L. Orozco-C{\'a}rdenas and C. A. Ryan}, journal={Proceedings of the National Academy of Sciences of the United States of America}, year={1999}, volume={96 11}, pages={6553-7} }