The effect of warming and enhanced ultraviolet radiation on gender-specific emissions of volatile organic compounds from European aspen

The Science of the Total Environment
Mengistu M MajaJarmo K Holopainen

Abstract

Different environmental stress factors often occur together but their combined effects on plant secondary metabolism are seldom considered. We studied the effect of enhanced ultraviolet (UV-B) (31% increase) radiation and temperature (ambient +2 °C) singly and in combination on gender-specific emissions of volatile organic compounds (VOCs) from 2-year-old clones of European aspen (Populus tremula L.). Plants grew in 36 experimental plots (6 replicates for Control, UV-A, UV-B, T, UV-A+T and UV-B+T treatments), in an experimental field. VOCs emitted from shoots were sampled from two (1 male and 1 female) randomly selected saplings (total of 72 saplings), per plot on two sampling occasions (June and July) in 2014. There was a significant UV-B×temperature interaction effect on emission rates of different VOCs. Isoprene emission rate was increased due to warming, but warming also modified VOC responses to both UV-A and UV-B radiation. Thus, UV-A increased isoprene emissions without warming, whereas UV-B increased emissions only in combination with warming. Warming-modified UV-A and UV-B responses were also seen in monoterpenes (MTs), sesquiterpenes (SQTs) and green leaf volatiles (GLVs). MTs showed also a UV × gender interaction eff...Continue Reading

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Citations

Jan 27, 2017·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·UNKNOWN United Nations Environment Programme, Environmental Effects Assessment Panel
Mar 31, 2018·Plant, Cell & Environment·Tristan M CoferJurgen Engelberth
Feb 6, 2019·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·T Matthew RobsonMarcel A K Jansen
Feb 28, 2019·Photochemical & Photobiological Sciences : Official Journal of the European Photochemistry Association and the European Society for Photobiology·Janet F BornmanStephan D Flint
Jul 17, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Evans EffahAndrea Clavijo McCormick
Mar 23, 2017·Frontiers in Plant Science·Yunxiang ZhangSheng Zhang
Aug 12, 2017·Frontiers in Plant Science·Alessio FiniMassimiliano Tattini
Oct 20, 2018·Frontiers in Plant Science·Jarmo K HolopainenMinna Kivimäenpää
May 1, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·H YuJ D Blande

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