Pressure Wave During Wounding (video) Institute of Science and Technology Austria Share Print E-Mail Loading video... Caption To investigate wound healing, the scientists injured a thale cress root with a laser. They observed extreme pressure changes in the tissue at the moment of wounding. Credit Lukas Hoermayer / IST Austria Usage Restrictions Lukas Hoermayer / IST Austria Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.