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Literature summary for 4.4.1.9 extracted from

  • Garcia, I.; Castellano, J.M.; Vioque, B.; Solano, R.; Gotor, C.; Romero, L.C.
    Mitochondrial beta-cyanoalanine synthase is essential for root hair formation in Arabidopsis thaliana (2010), Plant Cell, 22, 3268-3279.
    View publication on PubMedView publication on EuropePMC

Localization

Localization Comment Organism GeneOntology No. Textmining
mitochondrion
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Arabidopsis thaliana 5739
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Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana
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-
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General Information

General Information Comment Organism
physiological function T-DNA insertion mutants of the mitochondrial beta-cyanoalanine synthase CYS-C1 are defective in root hair formation and accumulate cyanide in root tissues. The root hair defect is phenocopied in wild-type plants by the exogenous addition of cyanide to the growth medium and is reversed by the addition of hydroxocobalamin or by genetic complementation with the CYS-C1 gene. Hydroxocobalamin not only recovers the root phenotype of the mutant but also the formation of reactive oxygen species at the initial step of root hair tip growth. Cyanide accumulation acts as a repressive signal for several genes encoding enzymes involved in cell wall rebuilding and the formation of the root hair tip as well as genes involved in ethylene signaling and metabolism Arabidopsis thaliana