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The Arabidopsis TIR-NB-LRR GeneRAC1 confers resistance to Albugo candida (white rust) and is dependent on EDS1 but not PAD4

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Borhan, Mohammad H., Holub, E. B., Beynon, Jim, Rozwadowski, Kevin and Rimmer, Samuel Roger (2004) The Arabidopsis TIR-NB-LRR GeneRAC1 confers resistance to Albugo candida (white rust) and is dependent on EDS1 but not PAD4. Molecular Plant-Microbe Interactions, Volume 17 (Number 7). pp. 711-719. doi:10.1094/MPMI.2004.17.7.711 ISSN 0894-0282.

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Official URL: http://dx.doi.org/10.1094/MPMI.2004.17.7.711

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Abstract

Resistance to Albugo candida isolate Acem1 is conferred by a dominant gene, RAC1, in accession Ksk-1 of Arabidopsis thaliana. This gene was isolated by positional cloning and is a member of the Drosophila toll and mammalian interleukin-1 receptor (TIR) nucleotide-binding site leucine-rich repeat (NB-LRR) class of plant resistance genes. Strong identity of the TIR and NB domains was observed between the predicted proteins encoded by the Ksk-1 allele and the allele from an Acem1-susceptible accession Columbia (Col) (99 and 98%, respectively). However, major differences between the two predicted proteins occur within the LRR domain and mainly are confined to the β-strand/β-turn structure of the LRR. Both proteins contain 14 imperfect repeats. RAC1-mediated resistance was analyzed further using mutations in defense regulation, including: pad4-1, eds1-1, and NahG, in the presence of the RAC1 allele from Ksk-1. White rust resistance was completely abolished by eds1-1 but was not affected by either pad4-1 or NahG.

Item Type: Journal Article
Subjects: Q Science > QK Botany
Divisions: Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- )
Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) > Warwick HRI (2004-2010)
Library of Congress Subject Headings (LCSH): Albugo candida, Arabidopsis thaliana -- Disease and pest resistance, Arabidopsis thaliana -- Genetics
Journal or Publication Title: Molecular Plant-Microbe Interactions
Publisher: American Phytopathological Society
ISSN: 0894-0282
Official Date: July 2004
Dates:
DateEvent
July 2004Published
January 2004Accepted
30 June 2003Submitted
Volume: Volume 17
Number: Number 7
Page Range: pp. 711-719
DOI: 10.1094/MPMI.2004.17.7.711
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Open Access (Creative Commons)
Date of first compliant deposit: 28 July 2016
Date of first compliant Open Access: 28 July 2016

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