Nagel, R., Berasategui, A., Paetz, C., Gershenzon, J., & Schmidt, A. (2014). Overexpression of an isoprenyl diphosphate synthase in spruce leads to unexpected terpene diversion products that function in plant defense. Plant Physiology, 164(2), 555-569. doi:10.1104/pp.113.228940.