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- W2135304889 endingPage "2027" @default.
- W2135304889 startingPage "2015" @default.
- W2135304889 abstract "Abstract Cyanide is produced concomitantly with ethylene biosynthesis. Arabidopsis (Arabidopsis thaliana) detoxifies cyanide primarily through the enzyme β-cyanoalanine synthase, mainly by the mitochondrial CYS-C1. CYS-C1 loss of function is not toxic for the plant and leads to an increased level of cyanide in cys-c1 mutants as well as a root hairless phenotype. The classification of genes differentially expressed in cys-c1 and wild-type plants reveals that the high endogenous cyanide content of the cys-c1 mutant is correlated with the biotic stress response. Cyanide accumulation and CYS-C1 gene expression are negatively correlated during compatible and incompatible plant-bacteria interactions. In addition, cys-c1 plants present an increased susceptibility to the necrotrophic fungus Botrytis cinerea and an increased tolerance to the biotrophic Pseudomonas syringae pv tomato DC3000 bacterium and Beet curly top virus. The cys-c1 mutation produces a reduction in respiration rate in leaves, an accumulation of reactive oxygen species, and an induction of the alternative oxidase AOX1a and pathogenesis-related PR1 expression. We hypothesize that cyanide, which is transiently accumulated during avirulent bacterial infection and constitutively accumulated in the cys-c1 mutant, uncouples the respiratory electron chain dependent on the cytochrome c oxidase, and this uncoupling induces the alternative oxidase activity and the accumulation of reactive oxygen species, which act by stimulating the salicylic acid-dependent signaling pathway of the plant immune system." @default.
- W2135304889 created "2016-06-24" @default.
- W2135304889 creator A5018171015 @default.
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- W2135304889 creator A5084553158 @default.
- W2135304889 date "2013-06-19" @default.
- W2135304889 modified "2023-10-03" @default.
- W2135304889 title "Transient Transcriptional Regulation of the <i>CYS-C1</i> Gene and Cyanide Accumulation upon Pathogen Infection in the Plant Immune Response " @default.
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- W2135304889 doi "https://doi.org/10.1104/pp.113.219436" @default.
- W2135304889 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3729779" @default.
- W2135304889 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/23784464" @default.