is 31.39 KB, has a resolution of 1200x1076 pixels and was uploaded on February 21, 2019 @ 7:05 pm by user: markster. It is filed under the tags: chemical compound, phototropism, acylation, diagram, black and white. Click the blue button at the top to freely download: Plant Indole-3-acetic Acid Auxin Indole-3-butyric Hormone png.