Terpenoid Emissions of Two Mediterranean Woody Species in Response to Drought Stress.

ABSTRACT: Drought is a major environmental constrain affecting plant performance and survival, particularly in Mediterranean ecosystems. Terpenoids may play a protective role under these conditions, however, observations of drought effects on plant terpenoid emissions are controversial ranging from decreased emissions to unaffected or increased release of terpenoids. In the present study we investigated terpenoid emissions of cork oak (Quercus suber) and gum rockrose (Cistus ladanifer) in response to summer drought stress in 2017. Pre-dawn leaf water potential (Ψ_PD) decreased from -0.64 to -1.72 MPa in Q. suber and from -1.69 to -4.05 MPa in C. ladanifer, indicating a transition from mild to severe drought along summer. Total terpenoid emissions decreased with

SUBMITTER: Haberstroh S 

PROVIDER: S-EPMC6064746 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature