Relationships between leaf color changes,pigment levels,enzyme activity,photosynthetic fluorescence characteristics and chloroplast ultrastructure of Liquidambar formosana Hance

作     者：Guoping Yin Yong Wang Yufei Xiao Jisheng Yang Renjie Wang Ying Jiang Ronglin Huang Xiongsheng Liu Yi Jiang Guoping Yin;Yong Wang;Yufei Xiao;Jisheng Yang;Renjie Wang;Ying Jiang;Ronglin Huang;Xiongsheng Liu;Yi Jiang

作者机构：Guangxi Key Laboratory of Superior Trees Resource CultivationGuangxi Zhuang Autonomous Region Forestry Research InstituteNanning 530002People’s Republic of China Guangxi UniversityNanning 53000People’s Republic of China 

出 版 物：《Journal of Forestry Research》 (林业研究（英文版）)

年 卷 期：2022年第33卷第5期

页      面：1559-1572页

核心收录：

学科分类：090706[农学-园林植物与观赏园艺] 0907[农学-林学] 09[农学] 

基　　金：This work was supported by the Fundamental Research Funds for Guangxi Zhuang Autonomous Region Forestry Research Institute(No.Linke 201809) Guangxi Forestry Science and Technology Promotion Demonstration Project(No.26 Guilin Research 2021) 

主　　题：Anthocyanins Leaf color parameter Enzymatic activities Chlorophyll fluorescence characteristics Liquidambar formosana 

摘      要：Liquidambar formosana Hance is an attractive landscape tree species because its leaves gradually change from green to red,purple or orange in *** this study,the red variety of *** was used to establish a quantitative model of leaf *** changes in leaf color,pigment levels,enzyme activity,photosynthetic fluorescence characteristics and chloroplast ultrastructure were *** relationship between leaf color and physiological structure indices was quantitatively analyzed to systematically explore the mechanisms behind leaf *** data showed that with a decrease in external temperatures,chloroplast numbers and sizes gradually decreased,thylakoid membranes became distorted,and chlorophyll synthesis was blocked and gradually *** a result,chloroplast membranes could not be biosynthesized normally;net photosynthesis,maximum and actual photochemical efficiency,and rate of electron transfer decreased *** light energy caused leaf *** intensification of photoinhibition,leaves protected themselves using two *** the first,anthocyanin synthesis was promoted by increasing chalcone isomerase and flavonoid glycosyltransferase activities and soluble sugar content so as to increase anthocyanin to filter light and eliminate reactive oxygen species to reduce *** the second,excessive light energy was consumed in the form of heat energy by increasing the non-photochemical quenching *** processes tuned the leaves red.