growth.html

Movies showing etiolated Arabidopsis hypocotyl growth responses to ethylene

(other species also available for viewing)

Click on image to see movie:

In both movies:

Back lighting was provided by an infrared LED
One frame was captured every 5 minutes for 8 hours
The presence of 10 mL/L ethylene is indicated when the background changes to black (this was done digitally)
Air pre-treatment was 1 hour

Movie #1- 2 hour ethylene treatment of Col-0 seedlings

Movie #2- Comparison of ein3-1;eil1-1 mutants (left) to Col-0 (right) during a 7 hour exposure to ethylene