DOI: 10.1111/gcb.12628
论文题名: Changes in floral bouquets from compound-specific responses to increasing temperatures
作者: Farré-Armengol G. ; Filella I. ; Llusià J. ; Niinemets U. ; Peñuelas J.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期: 12 起始页码: 3660
结束页码: 3669
语种: 英语
英文关键词: Chemical communication
; Emission profiles
; Flower physiology
; Flower volatile emissions
; Global warming
; Monoterpenes
; Physicochemical properties
; Sesquiterpenes
; Temperature-response curve
; Volatility
Scopus关键词: terpene
; volatile organic compound
; analysis
; biological model
; chemistry
; climate change
; computer simulation
; flower
; mass fragmentography
; odor
; physiology
; pollination
; temperature
; Climate Change
; Computer Simulation
; Flowers
; Gas Chromatography-Mass Spectrometry
; Models, Biological
; Odors
; Pollination
; Temperature
; Terpenes
; Volatile Organic Compounds
英文摘要: We addressed the potential effects of changes in ambient temperature on the profiles of volatile emissions from flowers and tested whether warming could induce significant quantitative and qualitative changes in floral emissions, which would potentially interfere with plant-pollinator chemical communication. We measured the temperature responses of floral emissions of various common species of Mediterranean plants using dynamic headspace sampling and used GC-MS to identify and quantify the emitted terpenes. Floral emissions increased with temperature to an optimum and thereafter decreased. The responses to temperature modeled here predicted increases in the rates of floral terpene emission of 0.03-1.4-fold, depending on the species, in response to an increase of 1 °C in the mean global ambient temperature. Under the warmest projections that predict a maximum increase of 5 °C in the mean temperature of Mediterranean climates in the Northern Hemisphere by the end of the century, our models predicted increases in the rates of floral terpene emissions of 0.34-9.1-fold, depending on the species. The species with the lowest emission rates had the highest relative increases in floral terpene emissions with temperature increases of 1-5 °C. The response of floral emissions to temperature differed among species and among different compounds within the species. Warming not only increased the rates of total emissions, but also changed the ratios among compounds that constituted the floral scents, i.e. increased the signal for pollinators, but also importantly altered the signal fidelity and probability of identification by pollinators, especially for specialists with a strong reliance on species-specific floral blends. © 2014 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62076
Appears in Collections: 影响、适应和脆弱性
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作者单位: Global Ecology Unit CREAF-CEAB-CSIC-UAB, CSIC, Cerdanyola del Vallès, Barcelona, Catalonia, Spain; CREAF, Cerdanyola del Vallès, Barcelona, Catalonia, Spain; Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, Kreutzwaldi 1, Tartu, Estonia; Estonian Academy of Sciences, Kohtu 6, Tallinn, Estonia
Recommended Citation:
Farré-Armengol G.,Filella I.,Llusià J.,et al. Changes in floral bouquets from compound-specific responses to increasing temperatures[J]. Global Change Biology,2014-01-01,20(12)