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Arabidopsis gp91 phox homologues AtrbohD and AtrbohF are required for accumulation of reactive oxygen intermediates in the plant defense response

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Torres, Miguel Angel, Dangl, Jeffery L., Jones, Jonathan D. G.·2002·Proceedings of the National Academy of Sciences

Abstract

Reactive oxygen intermediates (ROI) are strongly associated with plant defense responses. The origin of these ROI has been controversial. Arabidopsis respiratory burst oxidase homologues ( rboh genes) have been proposed to play a role in ROI generation. We analyzed lines carrying dSpm insertions in the highly expressed AtrbohD and AtrbohF genes. Both are required for full ROI production observed during incompatible interactions with the bacterial pathogen Pseudomonas syringae pv. tomato DC3000( avrRpm1 ) and the oomycete parasite Peronospora parasitica . We also observed reduced cell death, visualized by trypan blue stain and reduced electrolyte leakage, in the Atrboh mutants after DC3000( avrRpm1 ) inoculation. However, enhanced cell death is observed after infection of mutant lines with P. parasitica . Paradoxically, although atrbohD mutation eliminated the majority of total ROI production, atrbohF mutation exhibited the strongest effect on cell death.

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Metadata

Authors
Torres, M. A., Dangl, J. L., & Jones, J. D. G.
Venue
Proceedings of the National Academy of Sciences
Published
2001-12-26
Volume
99
Issue
1
Pages
517-522
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2059971395
Cited by
1,703
References
0
FWCI
38.85
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Arabidopsis gp91 phox homologues AtrbohD and AtrbohF are required for accumulation of reactive oxygen intermediates in the plant defense response. https://app.cochat.ai/papers/10.1073/pnas.012452499
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Torres, M. A., Dangl, J. L., & Jones, J. D. G. (2002). Arabidopsis gp91 phox homologues AtrbohD and AtrbohF are required for accumulation of reactive oxygen intermediates in the plant defense response. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.012452499

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