亚热带农业研究2025，Vol.21Issue(2)：118-124,7.DOI:10.13321/j.cnki.subtrop.agric.res.2025.02.007
5种桉树不同器官的单宁组成及含量比较
Comparison of tannin composition and content in different organs of five Eucalyptus species
摘要
Abstract
[Purpose]To study the tannin composition and content of Eucalyptus,so as to provide a basis for improving Eucalyptus plantations ecological benefits.[Method]The leaves,branches,and bark of E.cloeziana,Corymbia torelliana,E.grandis×E.uro-phylla,E.pellita,and C.citriodora of 1.5 years old were used as research objects.The tannin composition and content in the leaves,branches,and bark of Eucalyptus were determined and compared by high performance liquid chromatography.[Result]The tannins in the leaves,branches,and bark of E.grandis×E.urophylla exhibited rich diversity,while those in the leaves,branches,and bark of the other four species were significantly different.The content of gallocatechin in the leaves and branches of E.grandis×E.urophyl-la was higher than that of the other four species(P<0.05),while the content of epigallocatechin in the leaves,branches,and bark of E.pellita was higher than those of the other four species.The content of catechin gallate in the branches of E.pellita and the bark of C.citriodora was higher than that of other species.[Conclusion]The composition of tannins in Eucalyptus shows obvious interspe-cific and interorgan differences.The tannins in the branches and bark of 1.5 years old E.grandis×E.urophylla trees planted with tis-sue culture seedlings are more abundant than those in the same age of trees planted with sexual seedlings.Among the sexual seed-lings,tannins in E.cloeziana,E.pellita,and C.citriodora are primarily concentrated in the leaves,while those of C.torelliana are mainly concentrated in the bark.关键词
尾巨桉/大花序桉/单宁/没食子酸/没食子儿茶素Key words
Eucalyptus grandis×E.urophylla/Eucalyptus cloeziana/tannin/gallic acid/gallocatechin分类
农业科技引用本文复制引用
韦毅,姜黎明,肖晓华,伍琪,韦振道,任世奇..5种桉树不同器官的单宁组成及含量比较[J].亚热带农业研究,2025,21(2):118-124,7.基金项目
广西优良用材林资源培育重点实验室自主课题"桉树林地上生物量形成模型研究"(22-A-01-05) （22-A-01-05）
"十四五"国家重点研发计划项目"桉树大径级无节材培育理论与技术研究"(2023YFD2201004) （2023YFD2201004）
广西科技基地和人才专项"南宁桉树森林生态系统广西野外科学观测研究站(科研能力建设)"(桂科23-026-272). （科研能力建设）
