广西植物2026，Vol.46Issue(8)：1372-1384,13.DOI:10.11931/guihaia.gxzw202503012
四种广西特有秋海棠花朵挥发性成分分析
Volatile components in flowers of four endemic Begonia species in Guangxi
摘要
Abstract
The Guangxi endemic plants Begonia lanternaria,B.longgangensis,B.luzhaiensis,and B.pseudoleprosa have important ecological value and ornamental potential.This study aims to clarify the composition,content and interspecific differences of volatile components in their flowers.In this study,headspace solid-phase microextraction combined with gas chromatography-mass spectrometry was used to identify and analyze the volatile components of flowers of four Begonia species.The results were as follows:(1)A total of 56 volatile compounds were detected,including 20 terpenes,16 other hydrocarbons(excluding terpenes),8 alcohols,1 phenol,6 esters,1 amide,and 4 other compounds.Among them,Terpenoids were the most abundant volatile components in flower samples of B.longgangensis,B.luzhaiensis and B.pseudoleprosa,whereas alcohols were the most abundant in flower samples of B.lanternaria.(2)The number of volatile components showed significant differences among species.The richness of volatile components ranked from high to low was B.longgangensis(27 kinds),B.pseudoleprosa(22 kinds),B.luzhaiensis(10 kinds),and B.lanternaria(5 kinds).No common volatile components were found among the four species.(3)(Z)-β-ocimene was significantly enriched in flowers of B.longgangensis and B.luzhaiensis,and might be a major contributor to their characteristic aroma.In summary,the volatile components of flowers of four Begonia species differ in composition and relative content,resulting in unique aroma profiles.These results provide references for the evaluation of germplasm resources,variety breeding,horticultural development,and health tourism related to Begonia plants.关键词
秋海棠属/气相色谱-质谱联用技术/鲜花/挥发性成分/喀斯特植物Key words
Begonia/GC-MS/fresh flower/volatile components/karst plants分类
农业科技引用本文复制引用
邹玲俐,朱晓珍,唐文秀,盘波,闫蓬勃,黄仕训..四种广西特有秋海棠花朵挥发性成分分析[J].广西植物,2026,46(8):1372-1384,13.基金项目
广西科技基地和人才专项(桂科AD20325009). （桂科AD20325009）
