HEITI PAVES / SCIENCE PHOTO LIBRARY HEITI PAVES / SCIENCE PHOTO LIBRARY
Timelapse footage of gravitropism and phototropism in thale cress (Arabidopsis thaliana) seedlings. This shows competition between negative gravitropism and phototropism. Negative gravitropism is the plant's tendency to grow upwards, against the force of gravity. Phototropism is the habit of plants to grow towards light, which here is coming from below, setting the two forces in unnatural opposition.
Model release not required. Property release not required.
Contact us if you require the original or other formats.