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Dynamics of Endogenous Polyamines in Seedling Trees of Pyrus ussuriensis Maxim. x P. bretschneideri Rehd.

文献类型： 外文期刊

作者： Li, Chun Min 1 ; Zhang, Xin Zhong 1 ; Yue, Wen Quan 1 ; Zhao, Yong Bo 1 ; Zu, Wen Fang 1 ; Wang, Guang Peng 1 ; Chang, 1 ;

作者机构： 1.Hebei Acad Agr & Forestry Sci, Changli Inst Pomol, Changli, Peoples R China

2.Shandong Agr Univ, Dept Hort, Tai An, Shandong, Peoples R China

关键词： phase change;polyamines;Pyrus

期刊名称：PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON ENDOGENOUS AND EXOGENOUS PLANT BIOREGULATORS

ISSN： 0567-7572

年卷期： 2008 年 774 期

页码：

收录情况： SCI

摘要： The endogenous polyamine contents were analyzed both qualitatively and quantitatively in leaves and phloem of pear seedling trees ('Jingbai' x 'Ya Pear') by high performance liquid chromatography. The putrescine concentration peaked at the node nos. 86-90. And the ratio of putrescine/spermidine+spermine was exceeded I in samples taken from the nodes higher than the node nos. 86-90. The results implicated that the node nos. 81-85 would be an important physiological transition point of interspecific hybrid seedling trees in Pyrus.

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