Study on Endogenous Phytohormone Changes in Poplar Hosts Infected by Ice Nucleation Active Bacterial Canker Disease
- Received Date: 2004-06-18
Abstract: The content of endogenous phytohormone like auxin and zeatin (a kind of cytokinesin) was higher in infected bark than that of in healthy bark, while the content of endogenous giberellin and abscisic acid droped in the diseased bark. The changes of endogenous phytohormone finally resulted in the development of swollen stem, slightly more active physiological state and decrease of the resistance to cold.