Research How auxin-mediated stress relaxation drives formation of new plant roots

The study reveals that auxin accumulation in pericycle cells leads to stress relaxation, which in turn redirects auxin flow to the adjacent endodermis. This auxin signalling in the endodermis prompts structural remodelling, facilitating the emergence of new lateral roots. The findings highlight the critical interplay between hormonal signaling and tissue mechanics in plant development, emphasizing how mechanical stress and auxin transport coordinate to drive organ formation. This research provides valuable insights into the fundamental processes governing plant growth and has potential implications for improving root architecture in crops.