Wounding stress induces alcohol dehydrogenase in maize and lettuce seedlings
2001
Kato-Noguchi, H.
To understand the effect of wounding stress on alcohol dehydrogenase (ADH, EC 1.1.1.1) in monocotyledonous and dicotyledonous plants, maize (Zea mays L.) and lettuce (Lactuca sativa L.) seedlings were subjected to wounding stress and ADH activity and abscisic acid (ABA) concentration were determined. In response to the stress, the ADH activity in seedlings of both species increased rapidly as a result of increased synthesis of the ADH. At 12 h after the stress, the activities in the wounded lettuce and maize seedlings, respectively, increased to 1.7- and 1.5-fold of that in non-stressed seedlings. Wounding stress also increased the concentration of endogenous ABA during the first 6 h in both seedlings. The maximum increased levels of ABA in the lettuce and maize seedlings were 4.9- and 4.7-fold of that in the non-stressed seedlings, respectively.
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