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- W2157586448 abstract "The fungus Cochliobolus victoriae causes Victoria blight of oats (Avena sativa) and is pathogenic due to its production of victorin, which induces programmed cell death in sensitive plants. Victorin sensitivity has been identified in Arabidopsis thaliana and is conferred by the dominant gene LOCUS ORCHESTRATING VICTORIN EFFECTS1 (LOV1), which encodes a coiled-coil-nucleotide binding site-leucine-rich repeat protein. We isolated 63 victorin-insensitive mutants, including 59 lov1 mutants and four locus of insensitivity to victorin1 (liv1) mutants. The LIV1 gene encodes thioredoxin h5 (ATTRX5), a member of a large family of disulfide oxidoreductases. To date, very few plant thioredoxins have been assigned specific, nonredundant functions. We found that the victorin response was highly specific to ATTRX5, as the closely related ATTRX3 could only partially compensate for loss of ATTRX5, even when overexpressed. We also created chimeric ATTRX5/ATTRX3 proteins, which identified the central portion of the protein as important for conferring specificity to ATTRX5. Furthermore, we found that ATTRX5, but not ATTRX3, is highly induced in sensitive Arabidopsis following victorin treatment. Finally, we determined that only the first of the two active-site Cys residues in ATTRX5 is required for the response to victorin, suggesting that ATTRX5 function in the victorin pathway involves an atypical mechanism of action." @default.
- W2157586448 created "2016-06-24" @default.
- W2157586448 creator A5052163253 @default.
- W2157586448 creator A5066346737 @default.
- W2157586448 date "2007-02-01" @default.
- W2157586448 modified "2023-10-11" @default.
- W2157586448 title "Thioredoxin <i>h</i>5 Is Required for Victorin Sensitivity Mediated by a CC-NBS-LRR Gene in <i>Arabidopsis</i>" @default.
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- W2157586448 doi "https://doi.org/10.1105/tpc.106.047563" @default.
- W2157586448 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/1867327" @default.
- W2157586448 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/17322408" @default.
- W2157586448 hasPublicationYear "2007" @default.
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