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《Northern Horticulture》 2010-24
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Effects of NaCl Treatment at Different Concentrations on Polyamine Metabolism in the Leaves of Yali Pear

WANG Xiao-ling,ZHANG Yu-xing (College of Horticulture,Hebei Agricultural University,Baoding,Hebei 071001)  
Took Yali branches as matirials,treated with different concentration of NaCl,studied the changes of polyamine in leaves of Yali under salt stress.The results showed that the ADC activities rised along with the NaCl treatment concentration rise in leaves of Yali pear.When the NaCl concentration was too high(150 mmol/L) the ADC activity no longer rises.The ODC activities were lower than ADC activities,and there were not any significant changes after the NaCl treatment.The TGase activities increased along with the NaCl treatment concentration rise,and decreased when the NaCl concentration was excessively high.PAO activities were activated after NaCl treatment,and decreased when the NaCl concentration was excessively high.Along with the NaCl treatment concentration rise,the free Put content and the Spd content rised,and decreased when the NaCl concentration was excessively high.There were no significant changes in the Spm content after the NaCl treatment.The band polyamines content rised along with the NaCl treatment concentration rise,and decreased when the NaCl concentration was excessively high.
【Fund】: 国家自然科学基金资助项目(30270928)
【CateGory Index】: S661.2
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