A single plant resistance gene promoter engineered to recognize multiple TAL effectors from disparate pathogens.

ABSTRACT: Plant pathogenic bacteria of the genus Xanthomonas inject transcription-activator like (TAL) effector proteins that manipulate the hosts' transcriptome to promote disease. However, in some cases plants take advantage of this mechanism to trigger defense responses. For example, transcription of the pepper Bs3 and rice Xa27 resistance (R) genes are specifically activated by the respective TAL effectors AvrBs3 from Xanthomonas campestris pv. vesicatoria (Xcv), and AvrXa27 from X. oryzae pv. oryzae (Xoo). Recognition of AvrBs3 was shown to be mediated by interaction with the corresponding UPT (UPregulated by TAL effectors) box UPT(AvrBs3) present in the promoter R gene Bs3 from the dicot pepper. In contrast, it was not known how the Xoo TAL effector AvrXa27 transcriptionally activates the matc

SUBMITTER: Romer P 

PROVIDER: S-EPMC2776607 | biostudies-literature | 2009 Dec

REPOSITORIES: biostudies-literature