Water Stress Enhances Expression of an α-Amylase Gene in Barley Leaves
Open Access
- 1 February 1986
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 80 (2) , 350-359
- https://doi.org/10.1104/pp.80.2.350
Abstract
The amylases of the second leaves of barley seedlings (Hordeum vulgare L. cv Betzes) were resolved into eight isozymes by isoelectric focusing, seven of which were β-amylase and the other, α-amylase. The α-amylase had the same isoelectric point as one of the gibberellin-induced α-amylase isozymes in the aleurone layer. This and other enzyme characteristics indicated that the leaf isozyme corresponded to the type A aleurone α-amylase (low pI group). Crossing experiments indicated that leaf and type A aleurone isozymes resulted from expression of the same genes.Keywords
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