Plant cell wall model during stretching (VIDEO) Penn State This video is under embargo. Please login to access this video. Caption As the modeled plant cell wall stretches, the network of components within the cell walls--including cellulose (purple), xyloglucan (green), and pectin (yellow)--dynamically rearranges itself. The movements by the cellulose provided the basis of the plant cell wall's unique extensibility. Credit Cosgrove Lab, Penn State Usage Restrictions Credit must be provided License Licensed content 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.