DYNAMICS OF ENDOGENOUS POLYAMINES IN SEEDLING TREES OF PYRUS USSURIENSIS MAXIM. × P. BRETSCHNEIDERI REHD.

Chun Min Li, Xin Zhong Zhang, Wen Quan Yue, Yong Bo Zhao, Wen Fang Zu, Guang Peng Wang, Rui Feng Chang, Huai Rui Shu
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
phase change, polyamines, Pyrus
English

Acta Horticulturae