Polymorphism in rice amylases at an early stage of seed germination |
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| Authors: | Mitsunaga S Kawakami O Numata T Yamaguchi J Fukui K Mitsui T |
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| Institution: | Department of Life and Health Science, Joetsu University of Education, Niigata, Japan. mitunaga@juen.ac.jp |
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| 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. |
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