Journal of Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Physiological Properties of Two Japonica Rice (Oryza sativa L.) Cultivars: Odae and Ilpum

  • Cho, Hye-Jeong (School of Biotechnology, Kangwon National University) ;
  • Heo, Kweon (Division of Applied Plant Sciences, Kangwon National University) ;
  • Umemoto, Takayuki (Department of Rice Research National Institute of Crop Science Tsukuba) ;
  • Wang, Myeong-Hyeon (School of Biotechnology, Kangwon National University)
  • Published : 2007.09.30
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Abstract

The properties of two cultivars of japonica rice, Odae (early ripening variety) and Ilpum (late ripening variety), were compared. They grew on MS (Murashige and Skoog) medium but the growth of both cultivars was strongly retarded by 50 mM or more salt. There was no clear difference between the growths of seedlings of the two cultivars for the first 24 h after germination. The amylopectin chain-length profiles of the two cultivars did not differ significantly, and amylopectin content was estimated at $16.0{\pm}0.4%$ in cv. Odae and $16.4{\pm}0.4%$ in cv. Ilpum. A total of 114 RAPD (randomly amplified polymorphic DNA) fragments ranging from 0.4 to 2.5 kb were isolated from the two cultivars, 61 from cv. Odae and 53 from cv. Ilpum, indicating that there is little genetic variation between them.

Keywords

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