Enhanced UV-B and Elevated CO2 Impacts Sub-Arctic Shrub Berry Abundance, Quality and Seed Germination

  • Dylan Gwynn-Jones
  • Alan Glyn Jones
  • Alice Waterhouse
  • David Charles Comont
  • John Scullion
  • Rosemary Lois Gardias
  • B. J. Graee
  • Andrew John Lee
  • Terry V. Callaghan

Y Wasg / Cyfryngau: Darllediadau'r cyfryngau

Disgrifiad

BBC Radio Cymru interview of Dylan Gwynn-Jones on berry work featured in Ambio Paper

Cyfnod22 Awst 2012

Cyfraniadau i’r wasg

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Cyfraniadau i’r wasg

  • TeitlEnhanced UV-B and Elevated CO2 Impacts Sub-Arctic Shrub Berry Abundance, Quality and Seed Germination
    Graddau amlygrwyddCenedlaethol
    Enw cyfrwng / allfaBBC Radio Cymru
    Math y cyfrwngRadio
    Gwlad/TiriogaethTeyrnas Unedig Prydain Fawr a Gogledd Iwerddon
    Dyddiad cyhoeddi22 Awst 2012
    DisgrifiadThis study investigated the effects of long-term-enhanced UV-B, and combined UV-B with elevated CO2 on dwarf shrub berry characteristics in a sub-arctic heath community. Germination of Vaccinium myrtillus was enhanced in seeds produced at elevated UV-B, but seed numbers and berry size were unaffected. Elevated UV-B and CO2 stimulated the abundance of V. myrtillus berries, whilst UV-B alone stimulated the berry abundance of V. vitis-idaea and Empetrum hermaphroditum. Enhanced UV-B reduced concentrations of several polyphenolics in V. myrtillus berries, whilst elevated CO2 increased quercetin glycosides in V. myrtillus, and syringetin glycosides and anthocyanins in E. hermaphroditum berries. UV-B × CO2 interactions were found for total anthocyanins, delphinidin-3-hexoside and peonidin-3-pentosidein in V. myrtillus berries but not E. hermaphroditum. Results suggest positive impacts of UV-B on the germination of V. myrtillus and species-specific impacts of UV-B × elevated CO2 on berry abundance and quality. The findings have relevance and implications for human and animal consumers plus seed dispersal and seedling establishment.
    UnigolionDylan Gwynn-Jones, Alan Glyn Jones, Alice Waterhouse, David Charles Comont, John Scullion, Rosemary Lois Gardias, B. J. Graee, Andrew John Lee, Terry V. Callaghan