Pseudomonas aeruginosa LasI plant growth promotion requires the host nitrate transceptor AtNRT1.1/CHL1 and the nitrate reductases NIA1 and NIA2

Here, by analyzing the transcriptomes of Arabidopsis seedlings co-cultivated with P. aeruginosa WT (PAO1) or lasI mutants defective on the synthesis of the quorum-sensing signaling molecule N-(3-oxododecanoyl)-L-homoserine lactone, a strong induction of genes for nitrate uptake and assimilation could be revealed.