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Volume 10 Issue 1
Apr.  2012
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Jiang Xiuyoung, Gao Yuzhu, Wang Zhong. The Changes of Lamella Structure and photosynthetic Properties on Etiolated Wheat Seedlings during Greening Stages[J]. Fujian Journal of Agricultural Sciences, 1995, 10(1): 23-27.
Citation: Jiang Xiuyoung, Gao Yuzhu, Wang Zhong. The Changes of Lamella Structure and photosynthetic Properties on Etiolated Wheat Seedlings during Greening Stages[J]. Fujian Journal of Agricultural Sciences, 1995, 10(1): 23-27.

The Changes of Lamella Structure and photosynthetic Properties on Etiolated Wheat Seedlings during Greening Stages

  • Received Date: 1993-08-20
  • Publish Date: 1995-03-15
  • When etiolated seedlings of wheat were exposed to light, their leaves would be greening and aparent photosynthesis increased; the activity of Rubis CO(Ribulose-1,5-Bisphopate Carboxy-lase-Oxygenase)decreased at first and increased after continuous illumination for 12 h. We had also studied the structure changes of lamella in the top and base leaves which received a continuous illu-mination for 24 h and 48 h and measured their photochemical activities at the same time. The results showed: at the begining, PSⅠ activity was very high, as the lamella got a raise in number, PSⅠactivity decreased while PSⅡ increased. It suggested that the chlorplasts were developed and im-proved in their structure and function during the process of greening of etiolated wheat seedlings,thus the two photosynthetic systems were equvialently distributed, the utilizing efficiency of light energy by chloroplasts was increased.
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