title: Polymorphism in rice amylases at an early stage of seed germination.
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.
authors.affiliation: Department of Life and Health Science, Joetsu University of Education, Niigata, Japan. mitunaga@juen.ac.jp
authors.forename: S
authors.initials: S
authors.lastname: Mitsunaga
authors.forename: O
authors.initials: O
authors.lastname: Kawakami
authors.forename: T
authors.initials: T
authors.lastname: Numata
authors.forename: J
authors.initials: J
authors.lastname: Yamaguchi
authors.forename: K
authors.initials: K
authors.lastname: Fukui
authors.forename: T
authors.initials: T
authors.lastname: Mitsui
mesh_terms: D018525:Germination; D007527:Isoenzymes / Q000378:metabolism; D012275:Oryza / Q000201:enzymology* / Q000254:growth & development; D011110:Polymorphism, Genetic; D012639:Seeds / Q000254:growth & development; D013997:Time Factors; D000516:alpha-Amylases / Q000378:metabolism*; D001614:beta-Amylase / Q000378:metabolism*
chemical_list: D007527:Isoenzymes; D000516:alpha-Amylases; D001614:beta-Amylase