Quantification of monoterpene emission sources of a conifer species in response to experimental drought.

ABSTRACT: Monoterpene (MT) emissions of conifer tree species, emitted from de novo synthesis and storage pools, play an important role in plant ecology and physiology. During drought stress both emission sources are affected differently and with conventional measuring techniques they are difficult to separate. We investigated ¹³C labelled MT emission of eight 3-year-old Scots pine seedlings in a drought stress experiment using a dynamic gas exchange chamber system (Tree DEMON). Monoterpene, water vapour and CO₂ gas exchange were measured for a 2-day normal watering, a 11-day treatment and a 3-day re-watering period. In each period all trees were ¹³C labelled once for 5 h. Results showed the expected decrease of MT, water vapour and CO₂ gas exchange

SUBMITTER: Lupke M 

PROVIDER: S-EPMC5632518 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature