文献类型：期刊文献

英文题名：Variation in oleoresin yield and anatomical traits amongSindora glabrapopulations in Hainan, China

作者：Yu, Niu[1,2] Li, Qiongqiong[1,2] Yang, Jinchang[1,2] Yin, Guangtian[1,2] Li, Rongsheng[1,2] Zou, Wentao[1,2]

第一作者：余纽

通信作者：Yang, JC[1];Yang, JC[2]

机构：[1]Chinese Acad Forestry, Res Inst Trop Forestry, Key Lab State Forestry Adm Trop Forestry Res, Guangzhou 510520, Peoples R China;[2]Chinese Acad Forestry, Res Inst Trop Forestry, 682 Guang Shan Yi Rd, Guangzhou 510520, Peoples R China

年份：2020

卷号：34

期号：5

起止页码：1323-1334

外文期刊名：TREES-STRUCTURE AND FUNCTION

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000541095600001)】；

基金：This research was supported by National Natural Science Foundation of China (31570656) and Fundamental Research Funds of Chinese Academy of Forestry (CAFYBB2018QB003 and CAFYBB2017SY023).

语种：英文

外文关键词：Oleoresin; Sesquiterpene; Secretory canal; Sindora glabra

摘要：Key message Geography and tree diameter were the major factors in determining oleoresin yield inSindora glabra. The tangential diameter and area of secretory canals are reliable indicators of the oleoresin amount. Sindora glabrais a native tropical plant of China that exudes copious amounts of oleoresin from wounds on the stem. Elucidation of the mechanism affecting the oleoresin yield is of particular importance for development and selection of superior germplasm. In this study, the variation in oleoresin yield and anatomical traits of the stem ofS. glabrawere investigated in four main natural populations in Hainan. The results showed that annual oleoresin yield varied considerably among populations. The oleoresin yield exhibited an increasing trend with the increment of tree stem diameter until the diameter was over 80 cm. Moreover, oleoresin production in the wet season was higher than in dry season. The analysis of oleoresin chemical composition indicated that the four populations belong to the same chemotype despite the amount of four types of sesquiterpenes varying greatly among areas. Anatomical analysis revealed that quantitative traits of secretory canals including tangential diameter, area, density and frequency were significantly different among populations and tree diameters. Furthermore, the tangential diameter and area of secretory canals were positively correlated with oleoresin yield. These results suggested that the tangential diameter and area of secretory canals are reliable indicators of the oleoresin amount and can be used for selection purposes inS. glabra.