Influence of light and temperature conditions on anthocyanin accumulation in Vaccinium spp. berries
Anthocyanins are the main pigments in the Vaccinium berries. Besides contributing to the characteristic bluish to reddish colors of the berries, anthocyanins are also recognized as potential health beneficial compounds. The biosynthesis of anthocyanins is well understood and the key regulators have been characterized in many plant species. The final anthocyanin composition in ripe berries is regulated by developmental and environmental factors, determined by the genetic background. We have studied the role of different light and temperature conditions on the accumulation of anthocyanins in wild bilberry (V. myrtillus L.) and cultivated highbush blueberry (V. corymbosum L.), in controlled and in field experiments. These experiments include specific growth conditions with clones from northern and southern latitudes as well as from different altitudes. The results show species-specific interactions in quantitative and qualitative composition of anthocyanins as a response to light and temperature conditions. For instance, lower temperature and specific light wavelengths induced accumulation of delphinidin glycosides in bilberry.
Jaakola, L., Zoratti, L., Giongo, L., Karppinen, K., Uleberg, E., Martinussen, I. and Häggman, H. (2017). Influence of light and temperature conditions on anthocyanin accumulation in Vaccinium spp. berries. Acta Hortic. 1180, 321-326
altitude, anthocyanins, bilberry, blueberries, light, temperature, Vaccinium