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Polymorphism in rice amylases at an early stage of seed germination
S Mitsunaga1, O Kawakami, T Numata
1Department of Life and Health Science, Joetsu University of Education, Niigata, Japan. mitunaga@juen.ac.jp
Bioscience, Biotechnology, and Biochemistry
|May 2, 2001
Abstract:
A polymorphism in rice amylases at an early stage of seed germination is analyzed by zymogram. In non-glutinous cultivars of rice, alpha-amylase isozymes are mainly confirmed in germinating seeds. However, in glutinous cultivars, beta-amylase isozymes, which are not confirmed in nonglutinous cultivars, make up the major part of the total amylase activity and the expression of alpha-amylases are repressed.