Rhizobacterial volatile emissions regulate auxin homeostasis and cell expansion in Arabidopsis

  title={Rhizobacterial volatile emissions regulate auxin homeostasis and cell expansion in Arabidopsis},
  author={Huiming Zhang and Mi-Seong Kim and Venkat Krishnamachari and Paxton Payton and Yan Sun and Mark J. Grimson and Mohamed Farag and Choong-Min Ryu and Randy Allen and Itamar S Melo and Paul W Par{\'e}},
Certain plant growth-promoting rhizobacteria (PGPR), in the absence of physical contact with a plant stimulate growth via volatile organic compound (VOC) emissions, through largely unknown mechanisms. To probe how PGPR VOCs trigger growth in plants, RNA transcript levels of Arabidopsis seedlings exposed to Bacillus subtilus (strain GB03) were examined using oligonucleotide microarrays. In screening over 26,000 protein-coded transcripts, a group of approximately 600 differentially expressed… CONTINUE READING
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