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Plants monitor the integrity of their barrier by sensing gas diffusion
A study using Arabidopsis shows that plants can monitor the integrity of their outer barriers by sensing gas diffusion, enabling them to initiate wound repair to prevent water loss and pathogen entry.
We also investigated reporter gene expression and periderm re-establishment when gas leakage was prevented by covering the wound with lanolin or Vaseline or by submerging the seedlings in liquid Murashige and Skoog (MS) medium. De Rybel, B. Wybouw, L. Ye, R. Mäkilä, S. el-Showk, T. Blomster, X. Wang, X. Zhang and Y. Helariutta for feedback on the manuscript; and the Light Microscopy Unit (University of Helsinki) for the confocal microscope equipment and technical assistance. prt6 mutant phenotype was different compared to ate1-2;ate2-1 likely due to its redundant partner, BIG 47. g, The proportion of cross sections showing callus-like structure at the wound site in mock and ACC-treated 21-day-old wild-type and prt6-5 roots at 4 dai.
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