Prosiectau fesul blwyddyn
Crynodeb
This 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.
Iaith wreiddiol | Saesneg |
---|---|
Tudalennau (o-i) | 256-268 |
Nifer y tudalennau | 13 |
Cyfnodolyn | Ambio: A Journal of the Human Environment |
Cyfrol | 41 |
Rhif cyhoeddi | SUPPL.3 |
Dynodwyr Gwrthrych Digidol (DOIs) | |
Statws | Cyhoeddwyd - Gorff 2012 |
Ôl bys
Gweld gwybodaeth am bynciau ymchwil 'Enhanced UV-B and Elevated CO2 Impacts Sub-Arctic Shrub Berry Abundance, Quality and Seed Germination'. Gyda’i gilydd, maen nhw’n ffurfio ôl bys unigryw.Prosiectau
- 2 Wedi Gorffen
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Optimising energy output and biorefining
Donnison, I. (Prif Ymchwilydd), Gallagher, J. (Prif Ymchwilydd), Shah, I. P. (Prif Ymchwilydd) & Winters, A. (Prif Ymchwilydd)
Biotechnology and Biological Sciences Research Council
01 Ebr 2012 → 31 Maw 2017
Prosiect: Ymchwil a ariannwyd yn allanol
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Do arctic plant-soil ccommunities acclimate to long term elevated Co2 exposure?
Gwynn-Jones, D. (Prif Ymchwilydd)
Natural Environment Research Council
28 Maw 2011 → 27 Maw 2014
Prosiect: Ymchwil a ariannwyd yn allanol