Volatile organic compound emissions from Scots pine: Mechanisms and description by algorithms

摘要: The mechanisms of volatile organic compound (VOC) emissions from Scots pine (Pinus sylvestris L.) were investigated in laboratory experiments. plants emitted mainly monoterpenes and acetone. Isoprene was only small amounts, but the its similar to those other compounds. Isoprene, acetone, monoterpene could be well described by an algorithm that considers caused evaporation VOCs out pools parallel with their biosynthetic production. Monoterpene affected temperature. In some cases, also influenced photosynthetic active radiation implying Pinus occur storage as processes are linked biosynthesis. coupling photosynthesis confirmed results experiments 13CO2. 13CO2 exposure resulted emission 13C labeled during night following exposure. Similar obtained for isoprene emissions. illumination darkness. compared outdoor measurements pine. While temperature dependencies rates comparable experiments, a PAR dependence not detectable. Temperature variations prevented detection this dependence.