文献类型：期刊文献

英文题名：Changes in Non-Structural Carbohydrates, Wood Properties and Essential Oil During Chemically-Induced Heartwood Formation inDalbergia odorifera

作者：Cui, Zhiyi[1] Li, Xiaofei[1] Xu, Daping[1] Yang, Zengjiang[1]

第一作者：崔之益

通信作者：Xu, DP[1]

机构：[1]Chinese Acad Forestry, Res Inst Trop Forestry, Guangzhou, Peoples R China

年份：2020

卷号：11

外文期刊名：FRONTIERS IN PLANT SCIENCE

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000566144400001)】；

基金：This work was financially supported by the Fundamental Research Funds for the Central Non-profit Research Institution of the Chinese Academy of Forestry (Grant No. CAFYBB2017ZX001-4) and the National Key Research and Development Program of China (2016YFD0600601).

语种：英文

外文关键词：non-structural carbohydrates; essential oil; hydrogen peroxide; heartwood; Dalbergia odorifera

摘要：The highly valuable heartwood ofDalbergia odoriferaT. Chen, known asJiang Xiangin traditional Chinese medicine, is formed very slowly, and there is a need to better understand the process and promote heartwood formation. Chemical induction is considered to be one of the promising methods to induce heartwood formation. However, to date no method has been proved effective forD. odoriferaas little is known about biochemical and physiological changes during heartwood development. Three potential heartwood induction substancesviz.acetic acid, sodium chloride, and hydrogen peroxide solutions were injected into the trunk ofD. odoriferato determine the effect on heartwood formation and physiological activity. Non-structural carbohydrates, lipids, wood properties, and essential oil were assessed in the post-treatment period. As also observed in the formation of natural heartwood, chemical-inducedJiang Xiangproduction was accompanied by sapwood dehydration, non-structural carbohydrates consumption, and synthesis of heartwood substances. As the heartwood substances accumulated, basic density and essential oil content increased gradually, therebyJiang Xiangwas finally produced. In this process, physiological parameters of discolored sapwood gradually evolved to resemble those of natural heartwood. Hydrogen peroxide-inducedJiang Xiangwas closest to natural heartwood, and the essential oil components met the standards for high-qualityJiang Xiang, while the induction effects of acetic acid and sodium chloride were unsatisfactory. Thus, this study indicates that hydrogen peroxide has the potential to induceJiang Xiangproduction inDalbergia odorifera.