Experiment: | 400 |
Title: | Incompatible interaction Plasmodiophora-Arabidopsis |
Date: | 2012-02-15 |
Description: | A monogenetic inherited resistance phenotype to Plasmodiophora brassicae has been found in Arabidopsis ecotype Tsu-0. The dominantly inherited RPB1 gene mediates a hypersensitive-like response reaction. Inoculated roots of the resistant line will be compared to control roots at different time points after inoculation in order to get insights into the incompatible interaction. The corresponding dataset has been published (Siemens et al. 2006, MPMI). Furthermore, crossing experiments of the line Tsu-0 with mutant lines of salicylic acid, jasmonic acid and ethylene revealed no influence of these hormones in the resistance reaction. Furthermore, mutations of sgt1b and rar1 showed no influence on RPB1 mediated resistance, but a mutation of sgt1a (At4g23570) reveals to be epistatic to RPB1, indicating to protein ubiquitination and protein degradation as important part of clubroot resistance mechanism. The RPB1 locus has been localized to a region on chromosome 1 with 14 coding sequences according to the sequence of ecotype Columbia. One of these genes is polymorphic between resistant and susceptible ecotypes and encodes for a protein interacting with a SCF-complex. Therefor this gene is probably identical to RPB1. |
ftp Link: | ftp Link |
Slide ID | Slide Name | Genetic Background | Tissue | Stock Code | Cel File |
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Siemens_1-1_Tsu10dpi_Rep1_ATH1 | 20702 | roots | N1564 | Siemens_1-1_Tsu10dpi_Rep1_ATH1.CEL | |
Siemens_1-2_Tsu10dpi_Rep2_ATH1 | 20703 | roots | N1564 | Siemens_1-2_Tsu10dpi_Rep2_ATH1.CEL | |
Siemens_1-3_Tsu14dpi_Rep1_ATH1 | 20704 | roots | N1564 | Siemens_1-3_Tsu14dpi_Rep1_ATH1.CEL | |
Treatment: Fourteen day old plants were inoculated by injecting the soil around the plant with 2 ml of a resting spore suspension with a concentration of 10 to 6 spores/ml of the pathogen Plasmodiophora brassicae isolate "e3". | |||||
Siemens_1-4_Tsu24dpg_Rep1_ATH1 | 20705 | roots | N1564 | Siemens_1-4_Tsu24dpg_Rep1_ATH1.CEL | |
Siemens_1-5_Tsu28dpg_Rep1_ATH1 | 20706 | roots | N1564 | Siemens_1-5_Tsu28dpg_Rep1_ATH1.CEL | |
Siemens_1-6_Tsu24dpg_Rep2_ATH1 | 20707 | root | N1564 | Siemens_1-6_Tsu24dpg_Rep2_ATH1.CEL |