@article {84, title = {Early and specific gene expression triggered by rice resistance gene Pi33 in response to infection by ACE1 avirulent blast fungus}, journal = {The New phytologist}, volume = {174}, year = {2007}, month = {2007///}, pages = {159 - 71}, abstract = {* Our view of genes involved in rice disease resistance is far from complete. Here we used a gene-for-gene relationship corresponding to the interaction between atypical avirulence gene ACE1 from Magnaporthe grisea and rice resistance gene Pi33 to better characterize early rice defence responses induced during such interaction. * Rice genes differentially expressed during early stages of Pi33/ACE1 interaction were identified using DNA chip-based differential hybridization and QRT-PCR survey of the expression of known and putative regulators of disease resistance. * One hundred genes were identified as induced or repressed during rice defence response, 80\% of which are novel, including resistance gene analogues. Pi33/ACE1 interaction also triggered the up-regulation of classical PR defence genes and a massive down-regulation of chlorophyll a/b binding genes. Most of these differentially expressed genes were induced or repressed earlier in Pi33/ACE1 interaction than in the gene-for-gene interaction involving Nipponbare resistant cultivar. * Besides demonstrating that an ACE1/Pi33 interaction induced classical and specific expression patterns, this work provides a list of new genes likely to be involved in rice disease resistance.}, keywords = {Down-Regulation, Fungal, Gene Expression Regulation, Genes, Magnaporthe, Oligonucleotide Array Sequence Analysis, Oryza sativa, Plant, Plant Diseases, Reverse Transcriptase Polymerase Chain Reaction, Up-Regulation}, isbn = {0028646}, author = {E Vergne and E Ballini and S Marques and B Sidi Mammar and Droc, Ga{\"e}tan and Sylvain Gaillard and S Bourot and R {DeRose} and D Tharreau and {Jean-Loup} Notteghem and Lebrun,Marc-Henri and J-B Morel} }