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The Symbiont Research of Seabuckthorn as a Pioneer Plant

Wang Lan~1,Zhang Xiaomin~2,Lin Meizhen~2,Zhang Jike~2(1.Bioengineering institute of Shanxi University,Taiyuan;2.Life science and technical college of Shanxi University,Shanxi 030006)  
Seabuckthorn is regarded as a pioneer plant for its actinorhizal property.The most important characteristics of the actiorhizal plant relies on the symbiont with Frankia in root nodules to fix the N_2 from atmosphere.The symbiont keeps a fine combination of structure and functions,which makes it possible of the photosynthesis C circulation and the metabolism N circulation of plants.This circulation not only keeps the growth and the development of the life also improves the soil.Because of hereditary diversity of actiborhizal plant and Frankia bacteriod,Seabuckthorn,keeping the extensive adaptability and the stress resistance to ecosystem,shows its significance in ecological restoration,aforestation and vegetation succession in fragile environment.
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