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Sun Delan, Bai Xuefang. MICROPHOTOMETRIC DETERMINED OF AMYLOPLASTS DNA CONTENT OF DIFFERENT DEVELOPMENTAL PERIODS IN COTYLEDON CELL OF BROAD BEAN[J]. Plant Science Journal, 1996, 14(1): 71-76.
Citation: Sun Delan, Bai Xuefang. MICROPHOTOMETRIC DETERMINED OF AMYLOPLASTS DNA CONTENT OF DIFFERENT DEVELOPMENTAL PERIODS IN COTYLEDON CELL OF BROAD BEAN[J]. Plant Science Journal, 1996, 14(1): 71-76.
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MICROPHOTOMETRIC DETERMINED OF AMYLOPLASTS DNA CONTENT OF DIFFERENT DEVELOPMENTAL PERIODS IN COTYLEDON CELL OF BROAD BEAN

  • 1.

    Institute of Botany, The Chinese Academy of Sciences Beijing 100044

  • 2.

    Dalian Institute of Chemical Physics, The Chinese Academy of Sciences Dalian 116023

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  • Received Date: October 10, 1994
  • Revised Date: March 03, 1995
  • Published Date: January 23, 1996
    Graphical Abstract
    • Abstract
  • The Feulgen-DNA contents of amyloplasts in cotyledon cell of broad bean in sub-cellular level have been determined by microphometry and the result showed the dynamic change in different developmental periods.The amyloplasts DNA of copies increase with the developmental stage-The average of amyloplasts DNA content is 2.14(arbitrary unit) in the middle stage of growth.Amyloplasts DNA increase to 10.12 (arbitrary unit) in the mature period of cotyledon cell of broad bean.Amyloplasts DNA content in cotyledon cell of mature period is 9.6 times than that in the middle period of growth.The change of variability DNA contents among plastids showed normal distribution in natural logarithm by biological statistics.
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