title: Nonhost resistance to Magnaporthe oryzae in Arabidopsis thaliana.
abstract: Rice blast, caused by Magnaporthe oryzae, is a devastating disease of rice (Oryza sativa). The mechanisms involved in resistance of rice to blast have been studied extensively and the rice--M. oryzae pathosystem has become a model for plant--microbe interaction studies. However, the mechanisms involved in nonhost resistance (NHR) of other plants to rice blast are still poorly understood. We have recently demonstrated that AGB1 and PMR5 contribute to PEN2-mediated preinvasion resistance to M. oryzae in Arabidopsis thaliana, suggesting a complex genetic network regulating the resistance. To determine whether other defense factors: RAR1, SGT1, and NHO1, affected the A. thaliana-M. oryzae interactions, double mutants were generated between pen2 and these defense-related mutants. All these double mutants exhibited a level of penetration resistance similar to that of the pen2 mutant, suggesting that none of these mutants significantly compromised resistance to M. oryzae in a pen2 background.
authors.affiliation: Department of Bioscience, Fukui Prefectural University, Fukui, Japan.
authors.forename: Kana
authors.initials: K
authors.lastname: Maeda
authors.forename: Yasunari
authors.initials: Y
authors.lastname: Houjyou
authors.forename: Takuma
authors.initials: T
authors.lastname: Komatsu
authors.forename: Hiroki
authors.initials: H
authors.lastname: Hori
authors.forename: Takahiro
authors.initials: T
authors.lastname: Kodaira
authors.forename: Atsushi
authors.initials: A
authors.lastname: Ishikawa
references.citation: Mol Plant Microbe Interact. 2005 May;18(5):397-404
references.pmid: 15915638
references.citation: Annu Rev Plant Biol. 2009;60:139-64
references.pmid: 19014346
references.citation: Plant Cell. 2002 May;14(5):993-1003
references.pmid: 12034892
references.citation: Plant Cell. 2002 May;14(5):1005-15
references.pmid: 12034893
references.citation: Proc Natl Acad Sci U S A. 2002 Aug 6;99(16):10865-9
references.pmid: 12119413
references.citation: Mol Plant Microbe Interact. 2009 Nov;22(11):1331-40
references.pmid: 19810803
references.citation: Plant Physiol. 2005 Aug;138(4):2155-64
references.pmid: 16040663
references.citation: Cell. 2006 Feb 24;124(4):803-14
references.pmid: 16497589
references.citation: Science. 2005 Nov 18;310(5751):1180-3
references.pmid: 16293760
references.citation: Nature. 2006 Nov 16;444(7117):323-9
references.pmid: 17108957
references.citation: Proc Natl Acad Sci U S A. 2003 Mar 18;100(6):3519-24
references.pmid: 12626746
references.citation: Plant Cell. 2001 Feb;13(2):437-47
references.pmid: 11226196
references.citation: EMBO J. 2007 Oct 17;26(20):4293-301
references.pmid: 17853890
references.citation: Science. 2002 Mar 15;295(5562):2073-6
references.pmid: 11847307
references.citation: Science. 2005 Aug 5;309(5736):929-32
references.pmid: 15976272
references.citation: Plant Cell. 2007 Dec;19(12):4035-45
references.pmid: 18156216
references.citation: Proc Natl Acad Sci U S A. 2005 Sep 6;102(36):12990-5
references.pmid: 16123135