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Factors affecting the anthocyanidin concentration in fruits of Vaccinium myrtillus L.

Åkerström, Andreas (2010). Factors affecting the anthocyanidin concentration in fruits of Vaccinium myrtillus L. Diss. (sammanfattning/summary) Umeå : Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae, 1652-6880 ; 2010:52
ISBN 978-91-576-7465-4
[Doctoral thesis]

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Vaccinium myrtillus, a small dwarf-shrub native to northern Europe has received much attention during recent decades because of its economic value and as a result of the health promoting substances found in the fruits. The work outlined in this thesis focused on the effects of exogenous factors such as temperature, light and nutrient availability on the concentration of anthocyanidins in the fruits. The research also examined whether the biosynthesis of anthocyanidins in V. myrtillus fruits (bilberries) is mainly under genetic or environmental control. This information is intended to be used in developing the cultivation of the species. The concentration of anthocyanidins in bilberries was found to be sensitive to changes in temperature and day length, with higher concentrations in fruits exposed to high mean temperatures (16°C) compared to low mean temperatures (11°C) and under long day (24 h) compared to short day (12 h) conditions. However, anthocyanidin concentrations were higher in the fruits of plants growing under a closed forest canopy compared to those in direct sunlight, certain years. Anthocyanidin concentrations were also found to be positively correlated with thermal sum (after first of May each year) up to 1350 degrees (C); above this value, concentrations decreased. Even though anthocyanidin concentrations in bilberries were affected by climatic factors, the results obtained clearly show that anthocyanidin biosynthesis in bilberries is primarily under genetic control. Clones of plants originating from different latitudes differed in anthocyanidin concentration even when they were grown under the same climatic conditions and at the same latitude for a period of more than ten years. Higher anthocyanidin concentrations were found in fruits from clones with a more northerly origin compared to those from further south. The same pattern was found in wild populations. The results gathered during the work underlying this thesis indicate that with selection of suitable genotypes and with controlled growth environment, the anthocyandin concentration in bilberries could be greatly enhanced compared to natural levels and concentrations could probably be stabilized thus reducing variation between years. In combination with the strong market for bilberries there are good prospects for future cultivation of V. myrtillus.

Authors/Creators:Åkerström, Andreas
Title:Factors affecting the anthocyanidin concentration in fruits of Vaccinium myrtillus L.
Series Name/Journal:Acta Universitatis Agriculturae Sueciae
Year of publishing :2010
Number of Pages:58
ALLI. Andreas Åkerström, Åsa Forsum, Kimmo Rumpunen, Anders Jäderlund & Ulla Bång (2009). Effect of Sampling Time and Nitrogen Fertilization on Anthocyanidin Levels in Vaccinium myrtillus Fruits. Journal of Agricultural Food Chemistry, 57 (8), 3340-3345. II. Andreas Åkerström, Ulla Bång & Anders Jäderlund. Anthocyanidin Concentration in Vaccinium myrtillus Fruits (Bilberries) - Effects of Temperature and Light in Controlled Environment. (Manuscript) III. Andreas Åkerström, Laura Jaakola, Anders Jäderlund & Ulla Bång. Effects of latitude-related factors and geographical origin on anthocyanidin concentration in fruits of Vaccinium myrtillus L. (Bilberries). Journal of Agricultural Food Chemistry (Accepted) IV. Anders Jäderlund, Andreas Åkerström & Ulla Bång. Influence of altitude and light availability on the concentration of anthocyanidins in fruits of Vaccinium myrtillus L. (Bilberries). (Manuscript)
Place of Publication:Umeå
Associated Programs and Other Stakeholders:Z - SLU - Library > Odla mera
ISBN for printed version:978-91-576-7465-4
Publication Type:Doctoral thesis
Full Text Status:Public
Agrovoc terms:vaccinium myrtillus, blueberries, soft fruits, cyanidin, delphinidin, genotypes, temperature, light, altitude, latitude, site factors, sweden, finland
Keywords:Altitude, Bilberry, Climate, cyanidin, delphinidin, Genome, Geographical origin, Latitude
Permanent URL:
ID Code:2342
Department:(NL, NJ) > Dept. of Agricultural Research for Northern Sweden
(VH) > Dept. of Agricultural Research for Northern Sweden
Deposited By: Andreas Åkerström
Deposited On:08 Sep 2010 00:00
Metadata Last Modified:22 Mar 2015 15:08

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