Flooding induced increase in alcohol dehydrogenase activity in timothy andryegrass seedlings

Two forage grasses, timothy (Phleum pratense L.) and ryegrass (Lolium multi florum Lam.) were exposed to flooding, and activities of alcohol dehydrogen ase (ADH) and their isozyme profiles were determined. The flooding stress i ncreased ADH activities in both species. This increase was 2-times greater in timothy than in ryegrass. Only one ADH isozyme was found in non-flooded seedlings of both species. whereas two and foul bands were identified in ry egrass and timothy seedlings, respectively, under flooding stress.