文献类型：期刊文献

中文题名：云南普洱季风常绿阔叶林主要树种非结构性碳水化合物变异分析

英文题名：Variation of Non-Structural Carbohydrates for the Dominant Species in a Monsoon Broad-Leaved Evergreen Forest in Pu'Er,Yunnan Province

作者：刘万德[1] 苏建荣[1] 李帅锋[1] 郎学东[1] 黄小波[1] 张志钧[1]

第一作者：刘万德

通信作者：Su, Jianrong

机构：[1]中国林业科学研究院资源昆虫研究所云南普洱森林生态系统国家定位观测研究站

年份：2017

卷号：53

期号：6

起止页码：1-9

中文期刊名：林业科学

外文期刊名：Scientia Silvae Sinicae

收录：CSTPCD;;EI(收录号：20174304303726);Scopus(收录号：2-s2.0-85032878825);北大核心:【北大核心2014】；CSCD:【CSCD2017_2018】；

基金：国家自然科学基金(31370592;31200461;31470617);林业公益性行业专项经费(201404211)

语种：中文

中文关键词：季风常绿阔叶林;非结构性碳水化合物;可溶性糖;淀粉

外文关键词：monsoon broad-leaved evergreen forest; non-structural carbohydrates soluble sugar; starch;

分类号：S718.43

摘要：【目的】探索植物非结构性碳水化合物(NSC)组分随物种和植物器官的变化特征,了解不同树种的生长动态、碳代谢特征及生长对策。【方法】在云南普洱季风常绿阔叶林中,选取20个重要物种,采集植物叶片、枝条、树干及树根,测定其可溶性糖类(蔗糖、果糖、葡萄糖)及淀粉浓度,分析其NSC各组分随物种和植物器官的变化特征。【结果】不同植物器官间NSC存在显著差异,叶片中蔗糖、果糖、葡萄糖浓度最高,树干中浓度最低,而根中淀粉浓度最高,叶片中浓度最低。不同物种之间蔗糖、果糖、葡萄糖及淀粉浓度均存在显著性差异。绝大多数物种可溶性糖类浓度高值主要出现在叶片中,而淀粉高值主要出现在根中。所有NSC组分在不同植物器官中变异均较高,蔗糖变动范围为45.99%~60.40%,果糖为60.96%~86.26%,葡萄糖为56.41%~97.40%,淀粉为40.40%~55.01%;绝大多数物种NSC的变异系数大于50%,甚至超过100%。变异来源分析显示,蔗糖、果糖、葡萄糖浓度主要受物种影响,而淀粉浓度则主要受植物器官影响,但物种、植物器官及其交互作用对NSC不同组分影响均达到显著水平。【结论】普洱季风常绿阔叶林不同物种NSC及其组分浓度不同,植物叶片中可溶性糖浓度最高,而根中淀粉浓度最高。物种是影响可溶性糖浓度的主导因素,而器官则主要影响淀粉浓度。
【Objective】Our objective was to explore the change features of non-structural carbohydrates（ NSC） in different organs of dominant species in a monsoon broad-leaved evergreen forest.【Methods】In December of 2013,foliage,branch,stem and root were sampled from 20 dominant species in a monsoon broad-leaved evergreen forest in Pu ＇er,Yunnan Province. Sucrose,fructose,glucose and starch in the all four organs were measured. The variation characteristics of sucrose,fructose,glucose and starch content with the species and their organs were analyzed by Repeated-Measure ANOVA. 【Results】The concentration of NSC differed significantly among different species and organs. The soluble sugar concentration,including sucrose,fructose,and glucose,were the highest in the foliage and the lowest in the stem. The starch concentration was,however,the highest in the root and the lowest in the foliage. The soluble sugar mainly located in the foliage for most species,and starch mainly located in the root. The coefficient of variation（ CV） for NSC components was all high in different organs. The range of CV for sucrose,fructose,glucose and starch in different organs were 45. 99%-61. 40%,60. 96%-86. 26%,56. 41%-97. 40%,and 40. 40%-55. 01%,respectively. The CV for most species were higher than 50%,even exceeded 100%. Factorial analysis of variation for each parameter,with organ and species as independent variables,showed that the concentration of sucrose,fructose,and glucose were mainly determined by species. However the concentration of starch was mainly determined by the organ. All the effects of species, organ and their interaction on NSC were significant. 【Conclusions 】 Different species had the varyingconcentrations of NSC and its compositions in the monsoon broad-leaved evergreen forest in Pu＇er. The soluble sugar,including sucrose,fructose,and glucose,mainly distributed in the foliage,while the starch mainly distributed in the root.Species mainly affected the soluble sugar concentration and the organ mainly affected the starch concentration.