[1] Jones JDG, Dangl JL. The plant immune system. Nature, 2006, 444(7117): 323-329.[2] Boller T, He SY. Innate immunity in plants: an arms race between pattern recognition receptors in plants and effectors in microbial pathogens. Science, 2009, 324(5928): 742-744.[3] Takken FLW, Tameling WIL. To nibble at plant resistance proteins. Science, 2009, 324(5928): 744-746.[4] Zipfel C. Pattern-recognition receptors in plant innate immunity. Curr Opin Immunol, 2008, 20(1): 10-16.[5] Naito K, Taquchi F, Suzuki T, Inagaki Y, Toyoda K, Shiraishi T, Ichinose Y. Amino acid sequence of bacterial microbe-associated molecular pattern flg22 is required for virulence. Mol Plant-Microbe Interact, 2008, 21(9): 1165-1174.[6] van de Veerdonk FL, Kullberg BJ, van der Meer JW, Gow NA, Netea MG. Host-microbe interactions: innate pattern recognition of fungal pathogens. Curr Opin Micro-biol, 2008, 11(4): 305-312.[7] Postel S, Kemmerling B. Plant systems for recognition of pathogen-associated molecular patterns. Semin Cell Dev Biol, 2009, 20(9): 1025-1031.[8] Felix G, Duran JD, Volko S, Boller T. Plants have a sensitive perception system for the most conserved domain of bacterial flagellin. Plant J, 1999, 18(3): 265-276.[9] Chinchilla D, Bauer Z, Regenass M, Boller T, Felix G. The Arabidopsis receptor kinase FLS2 binds flg22 and determines the specificity of flagellin perception. Plant Cell, 2006, 18(2): 465-476.[10] Dunning FM, Sun WX, Jansen KL, Helft L, Bent AF. Identification and mutational analysis of Arabidopsis FLS2 leucine-rich repeat domain residues that contribute to flagellin perception. Plant Cell, 2007, 19(10): 3297-3313.[11] Robatzek S, Bittel P, Chinchilla D, Köchner P, Felix G, Shiu SH, Boller T. Molecular identification and characterization of the tomato flagellin receptor LeFLS2, an orthologue of Arabidopsis FLS2 exhibiting characteristically different perception specificities. Plant Mol Biol, 2007, 64(5): 539-547.[12] Hann DR, Rathjen JP. Early events in the pathogenicity of Pseudomonas syringae on Nicotiana bentha-miana. Plant J, 2007, 49(4): 607-618.[13] Takai R, Isogai A, Takayama S, Che FS. Analysis of flag-ellin perception mediated by flg22 receptor OsFLS2 in rice. Mol Plant-Microbe Interact, 2008, 21(12): 1635-1642.[14] de Torres M, Mansfield JW, Grabov N, Brown IR, Ammouneh H, Tsiamis G, Forsyth A, Robatzek S, Grant M, Boch J. Pseudomonas syringae effector AvrPtoB suppresses basal defence in Arabidopsis. Plant J, 2006, 47(3): 368-382.[15] Zipfel C, Robatzek S, Navarro L, Oakeley EJ, Jones JD, Felix G, Boller T. Bacterial disease resistance in Arabidopsis through flagellin perception. Nature, 2004, 428(6984): 764-767.[16] Kunze G, Zipfel C, Robatzek S, Niehaus K, Boller T, Felix G. The N terminus of bacterial elongation factor Tu elicits innate immunity in Arabidopsis plants. Plant Cell, 2004, 16(12): 3496-3507.[17] Zipfel C, Kunze G, Chinchilla D, Caniard A, Jones JDG, Boller T, Felix G. Perception of the bacterial PAMP EF-Tu by the receptor EFR restricts Agrobacterium-mediated transformation. Cell, 2006, 125(4): 749-760.[18] Dallo SF, Kannan TR, Blaylock MW, Baseman JB. Elon-gation factor Tu and E1 β subunit of pyruvate dehydro-genase complex act as fibronectin binding proteins in Mycoplasma pneumoniae. Mol Microbiol, 2002, 46(4): 1041-1051.[19] Granato D, Bergonzelli GE, Pridmore RD, Marvin L, Rouvet M, Corthésy-Theulaz IE. Cell surface-associated elongation factor Tu mediates the attachment of Lactobacillus johnsonii NCC533 (La1) to human intestinal cells and mucins. Infect Immun, 2004, 72(4): 2160-2169.[20] Lee Sw, Han SW, Sririyanum M, Park CJ, Seo YS, Ronald PC. A |