Nucleoporins Nup160 and Seh1 are required for disease resistance in Arabidopsis.

Charlotte Roth, Marcel Wiermer

Plant signaling & behavior 2012 Oct 01

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Arabidopsis Nup160 and Seh1, encoding two predicted nucleoporins of the Nup107-160 nuclear pore sub-complex, were identified in a reverse genetics screen based on their requirement for basal disease resistance. Both genes also contribute to immunity conferred by Toll interleukin 1 receptor/nucleotide-binding/leucine-rich repeat (TNL)-type R proteins and constitutive resistance activated in the deregulated TNL mutant, snc1. Protein amounts of EDS1, a central regulator of TNL-triggered resistance, are reduced in seh1 and severely depleted in nup160 single mutants. Here, we investigate the impact of mutations in Nup160, Seh1 and a third complex member, MOS3/Nup96, on EDS1 protein accumulation in the snc1 auto-immune mutant background. In addition, we examine the subcellular localization of Seh1 in root tissues.

Citation

Charlotte Roth, Marcel Wiermer. Nucleoporins Nup160 and Seh1 are required for disease resistance in Arabidopsis. Plant signaling & behavior. 2012 Oct 01;7(10):1212-4