Type III effectors orchestrate a complex interplay between transcriptional networks to modify basal defence responses during pathogenesis and resistance.

摘要: To successfully infect a plant, bacterial pathogens inject collection of Type III effector proteins (TTEs) directly into the plant cell that function to overcome basal defences and redirect host metabolism for nutrition growth. We examined (i) transcriptional dynamics defence responses between Arabidopsis thaliana Pseudomonas syringae (ii) how is subsequently modulated by virulence factors during compatible interactions. A set 96 genes displaying an early, sustained induction was identified. These were also universally co-regulated following other resistance non-host or elicitor challenges. Eight hundred eighty conservatively identified as being TTEs within 12 h post-inoculation (hpi), 20% which represented transcripts previously induced bacteria at 2 hpi. Significant over-representation encoding leucine rich repeat receptor protein phosphatases were, respectively, suppressed data support model in pathogen avoids detection through diminution extracellular receptors attenuation kinase signalling pathways. Transcripts associated with several metabolic pathways, particularly plastid based primary carbon metabolism, pigment biosynthesis aromatic amino acid significantly modified challenge Superimposed upon this response, (most likely TTEs) targeted involved phenylpropanoid biosynthesis, consistent abrogation lignin deposition wall modifications restrict passage nutrients water invading bacteria. In contrast, some pathways stress tolerance are transcriptionally hpi TTEs.