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Entry URI http://metadb.riken.jp/db/SciNetS_ria224i/cria224u4ria224u11756663i
Entry name Torres Miguel Angel et al. 2002 Jan. Proc. Natl. Acad. Sci. U.S.A. 99(1):517-22.
Title Arabidopsis gp91phox homologues AtrbohD and AtrbohF are required for accumulation of reactive oxygen intermediates in the plant defense response.
Authors Dangl Jeffery L|Jones Jonathan D G|Torres Miguel Angel
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.
Pubmed ID 11756663
Journal Proceedings of the National Academy of Sciences of the United States of America
Volume 99
Issue 1
Pages 517-22
Publication date 2002 Jan
Num of phenotype gene 2