Terpenoid emission from Citrus sinensis under drought stress
As a contribution to the BEMA project, the relationship between water status of Citrus sinensis and terpenoid emissions was studied in controlled conditions of the JRC-greenhouse laboratory. Terpenoid emissions from a branch of a young orange tree were monitored during a drought treatment and subsequent recovery. Emissions were consisted mainly of the sesquiterpene beta-carophyllene and of the open-chained monoterpene trans-ocimene, other compounds were found in traces. Emission of both main compounds was under light control, no emission occurred in the dark. At the end of drought exposure, emissions were less than 10% of the maximum rate observed in full water supply. Results are discussed in view of the fact that periods of soils dryness are typical for the Mediterranean climate.
Bibliographic Reference: Paper presented: European Geophysical Society XXIII , Nice (FR), 20-24th April (1999)
Availability: Available free of charge from Public Relations and Publications Unit, Ispra (IT)
Record Number: 199911429 / Last updated on: 1999-10-01
Original language: en
Available languages: en