The genetic network controlling the Arabidopsis transcriptional response to Pseudomonas syringae pv. maculicola: roles of major regulators and the phytotoxin coronatine.
作者： Lin Wang , Raka M Mitra , Keegan D Hasselmann , Masanao Sato , Lisa Lenarz-Wyatt
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摘要: Expression profiling of wild-type plants and mutants with defects in key components the defense signaling network was used to model Arabidopsis 24 h after infection by Pseudomonas syringae pv. maculicola ES4326. Results using Affymetrix ATH1 array revealed that expression levels most pathogen-responsive genes were affected mutations coi1, ein2, npr1, pad4, or sid2. These five defined a small number different patterns displayed majority genes. P. tomato strain DC3000 elicited much weaker salicylic acid (SA) response than Additional profiled custom array. Profiles pbs3 ndr1 major effects these allowed PBS3 NDR1 be placed between EDS1/PAD4 node SA synthesis network. Comparison dde2, jar1 profiles showed many coi1 but very few dde2 jar1. infected ES4326 similar those bacteria unable produce phytotoxin coronatine, indicating that, essentially, all COI1-dependent gene changes this system are caused coronatine.
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