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题名: Inflorescence scent, color, and nectar properties of "butterfly bush" (Buddleja davidii) in its native range
作者: Chen, Gao1; Gong, Weichang1, 2; Ge, Jia1; Dunn, Bruce L.3; null(孙卫邦)1
刊名: FLORA
关键词: 4-Oxoisophorone ; Buddleja davidii ; Butterfly bush ; Floral scent ; Scrophulariaceae
英文摘要: In this study, flower color, nectar properties, and inflorescence scent composition of eight natural and one introduced Buddleja davidii populations were investigated. Flower color of B. davidii was determined using the Royal Horticultural Society Color Chart and ranged from purple to white. Volume of nectar produced by a single flower ranged from 0.36 mu l to 0.64 mu l and total sugar concentration produced by inflorescence ranged from 17.0% to 33.5% in all populations. Floral nectar volume and sugar concentration were not significantly different between two flower color morphs in the B. davidii populations. Floral scents of B. davidii were collected using dynamic headspace adsorption and identified with coupled gas chromatography and mass spectrometry. In total, 33 compounds were identified from the inflorescences of B. davidii. The identified scents were divided into five chemical classes based on their biosynthetic origin: irregular terpenes, monoterpenoids, sesquiterpenoids, fatty acid derivatives, and benzenoids. The scent profiles in all populations were dominated by few components, such as: 4-oxoisophorone, E,E-alpha-farnesene, and 1-octen-3-ol. Given that inflorescence scents from natural and introduced individuals coming from the same population have discrepant chemical composition, we infer that phenotype plasticity may mediate floral scent composition. Based on the comparison of present and other data available on floral scent in B. davidii, we conclude that inflorescence scent may serve as a specific signal helping to attract pollinating butterflies to locate flowers as nectar sources, and may have evolved in conjunction with the sensory capabilities of butterflies and moths as a specific group of pollinators. (C) 2014 Elsevier GmbH. All rights reserved.
出版日期: 2014
卷号: 209, 期号:3-4, 页码:172-178
语种: 英语
收录类别: SCI
学科分类: Plant Sciences ; Environmental Sciences & Ecology
ISSN号: 0367-2530
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/18157
Appears in Collections:资源植物与生物技术所级重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Kunming Bot Garden, Kunming 650204, Yunnan, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Oklahoma State Univ, Dept Hort & Landscape Architecture, Stillwater, OK 74078 USA

Recommended Citation:
Chen,Gao;Gong,Weichang;Ge,Jia;Dunn,BruceL.;Sun,Weibang.Inflorescence scent, color, and nectar properties of "butterfly bush" (Buddleja davidii) in its native range,FLORA,2014,209(3-4):172-178
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