THE OXIDATIVE BURST IN PLANT DISEASE RESISTANCE
Rapid generation of superoxide and accumulation of H2O2 is a characteristic early feature of the hypersensitive response following perception of pathogen avirulence signals. Emerging data indicate that the oxidative burst reflects activation of a membrane-bound NADPH oxidase closely resembling that...
| Veröffentlicht in: | Annual review of plant physiology and plant molecular biology. - 1990. - 48(1997) vom: 17. Juni, Seite 251-275 |
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| Format: | Aufsatz |
| Sprache: | English |
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1997
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| Zugriff auf das übergeordnete Werk: | Annual review of plant physiology and plant molecular biology |
| Schlagworte: | Journal Article |
| Zusammenfassung: | Rapid generation of superoxide and accumulation of H2O2 is a characteristic early feature of the hypersensitive response following perception of pathogen avirulence signals. Emerging data indicate that the oxidative burst reflects activation of a membrane-bound NADPH oxidase closely resembling that operating in activated neutrophils. The oxidants are not only direct protective agents, but H2O2 also functions as a substrate for oxidative cross-linking in the cell wall, as a threshold trigger for hypersensitive cell death, and as a diffusible signal for induction of cellular protectant genes in surrounding cells. Activation of the oxidative burst is a central component of a highly amplified and integrated signal system, also involving salicylic acid and perturbations of cytosolic Ca2+, which underlies the expression of disease-resistance mechanisms |
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| Beschreibung: | Date Revised 09.01.2024 published: Print Citation Status Publisher |
| ISSN: | 1040-2519 |