Changes and Correlation Analysis of Polyphenol Contents in Phloem and Leaves of Pyrus betulaefolia during Growth Period
Zhang Huan
Ren Tingting
Yang Yingjie
Wang Ran
Abstract：Taking Pyrus betulaefolia as material,the changes of polyphenol contents in phloem and leav-es during the growth period and the correlation between them were studied.The correlation between the poly-phenol contents in phloem and the shoot growth was discussed,too.The results showed that the total polyphe-nol contents in phloem were significantly lower than those in leaves during the tested period.The main poly-phenol types were epicatechin,catechin and rutin in phloem,and chlorogenic acid,caffeic acid,ferulic acid and phloridzin in leaves.The contents of total and each type of polyphenol had different dynamic change.The correlation analysis indicated that,among the measured 8 kinds of polyphenols,there was only one positive correlation in the content of chlorogenic acid between phloem and leaves during the growth period.The content of rutin and quercetin in phloem showed significant negative correlations with shoot growth,and the other types of polyphenol did not have obvious correlation with the shoot growth.
Keywords：Pyrus betulaefoliaPhloemLeafPolyphenol
Publication Date：2015-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：4( 27-30 )