Abstract
This is the first demonstration that tobacco mosaic virus-induced oxidative stress in a necrotic host plant is signalled by an elevated level of monodehydroascorbate (MDA) radicals detected by electron paramagnetic resonance spectroscopy. Furthermore, systemic acquired resistance induced in remote leaves of Xanthi-nc tobacco is also associated with stimulated MDA signals indicative of a microoxidative burst.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Dehydroascorbic Acid / analogs & derivatives*
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Dehydroascorbic Acid / metabolism
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Electron Spin Resonance Spectroscopy / methods
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Electrophysiology
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Host-Parasite Interactions / immunology
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Host-Parasite Interactions / physiology
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Light
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Nicotiana / physiology
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Nicotiana / virology*
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Plant Leaves / physiology
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Plant Leaves / virology
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Respiratory Burst / physiology*
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Signal Transduction
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Tobacco Mosaic Virus / isolation & purification
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Tobacco Mosaic Virus / pathogenicity
Substances
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semidehydroascorbic acid
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Dehydroascorbic Acid