DYNAMICS OF ENDOGENOUS POLYAMINES IN SEEDLING TREES OF PYRUS USSURIENSIS MAXIM. × P. BRETSCHNEIDERI REHD.
The endogenous polyamine contents were analyzed both qualitatively and quantitatively in leaves and phloem of pear seedling trees ('Jingbai' × '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 1 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.
Chun Min Li, , Xin Zhong Zhang, , Wen Quan Yue, , Yong Bo Zhao, , Wen Fang Zu, , Guang Peng Wang, , Rui Feng Chang, and Huai Rui Shu, (2008). DYNAMICS OF ENDOGENOUS POLYAMINES IN SEEDLING TREES OF PYRUS USSURIENSIS MAXIM. × P. BRETSCHNEIDERI REHD.. Acta Hortic. 774, 89-94
DOI: 10.17660/ActaHortic.2008.774.10
https://doi.org/10.17660/ActaHortic.2008.774.10
DOI: 10.17660/ActaHortic.2008.774.10
https://doi.org/10.17660/ActaHortic.2008.774.10
phase change, polyamines, Pyrus
English
774_10
89-94