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The Clubroot Pathogen (Plasmodiophora Brassicae) Influences Auxin Signaling To Regulate Auxin Homeostasis In Arabidopsis, Linda Jahn, Stefanie Mucha, Sabine Bergmann, Cornelia Horn, Paul E. Staswick, Bianka Steffens, Johannes Siemens, Jutta Ludwig-Müller
The Clubroot Pathogen (Plasmodiophora Brassicae) Influences Auxin Signaling To Regulate Auxin Homeostasis In Arabidopsis, Linda Jahn, Stefanie Mucha, Sabine Bergmann, Cornelia Horn, Paul E. Staswick, Bianka Steffens, Johannes Siemens, Jutta Ludwig-Müller
Department of Agronomy and Horticulture: Faculty Publications
The clubroot disease, caused by the obligate biotrophic protist Plasmodiophora brassicae, affects cruciferous crops worldwide. It is characterized by root swellings as symptoms, which are dependent on the alteration of auxin and cytokinin metabolism. Here, we describe that two different classes of auxin receptors, the TIR family and the auxin binding protein 1 (ABP1) in Arabidopsis thaliana are transcriptionally upregulated upon gall formation. Mutations in the TIR family resulted in more susceptible reactions to the root pathogen. As target genes for the different pathways we have investigated the transcriptional regulation of selected transcriptional repressors (Aux/IAA) and transcription …