热带作物学报2024，Vol.45Issue(7)：1467-1477,11.DOI:10.3969/j.issn.1000-2561.2024.07.019
12个石斛属寡花组和顶叶组物种花的挥发性成分分析
Flower Volatile Components of Twelve Species from Holochrysa and Densiflora Groups in Dendrobium
摘要
Abstract
Dendrobium are famous for the ornamental and medicinal value.In order to explore the volatile components in the flowers of Dendrobium in Sect.Holochrysa and Sect.Chrysotoxae Kraenzl.,the volatile components in the flow-ers of five Dendrobium in Sect.Holochrysa and seven Dendrobium in Sect.Chrysotoxae Kraenzl.were extracted by solid phase micro extraction(SPME)and analyzed via gas chromatography-mass spectrometry(GC-MS).Results showed that 74 volatile components were identified from the flowers of the species,47 of which from D.hancockii in Sect.Holochrysa were the main volatile components;Secondly,there were 37 and 35 volatile components from D.chrysotoxum and D.harveyanum in the Sect.Chrysotoxae Kraenzl.,respectively.The least component species was D.farmeri in the Sect.Chrysotoxae Kraenzl.with only 18 volatile components.Most of the species of volatile substances in Dendrobium were more than 20,and most of which were alkenes,except D.kenkinsii and D.densiflorum in the Sect.Chrysotoxae Kraenzl.mainly contained aldehydes.Cluster analysis of volatile ingredients showed that all the Den-drobium flowers were clustered together except a few Dendrobium plants were not clustered in the original grouping,which indicated that the volatile substances in Dendrobium flowers could be used as a reference for Dendrobium grouping.This study would provide references for the breeding,resource exploration and utilization of Dendrobium,and exert significant value on the grouping of Dendrobium.关键词
石斛属/寡花组/顶叶组/香气成分分析Key words
Dendrobium/Sect.Holochrysa/Sect.Chrysotoxae Kraenzl./volatile components analysis分类
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郭玉华,洪小雨,黄明忠,李明瑞,李崇晖,陆顺教,尹俊梅..12个石斛属寡花组和顶叶组物种花的挥发性成分分析[J].热带作物学报,2024,45(7):1467-1477,11.基金项目
海南省重点研发计划项目(No.ZDYF2022XDNY219). （No.ZDYF2022XDNY219）
