Floral Scent Composition of Plumeria Tuberculata Analyzed by HS-SPME

Floral scent emitted by white and coloured morphs in orchids.

Polymorphism of floral signals, such as colour and odour, is widespread in flowering plants and often considered to be adaptive, reflecting various pollinator preferences for particular floral traits. Several authors have recently hypothesized that particular associations exist between floral colour and scent, which would result from shared biochemistry between these two floral traits. In this ...

Circadian Rhythms in Floral Scent Emission

To successfully recruit pollinators, plants often release attractive floral scents at specific times of day to coincide with pollinator foraging. This timing of scent emission is thought to be evolutionarily beneficial to maximize resource efficiency while attracting only useful pollinators. Temporal regulation of scent emission is tied to the activity of the specific metabolic pathways respons...

Volatile Components of Hypericum Humifusum, Hypericum Perfoliatum and Hypericum Ericoides by Hs-spme-gc and Hs-spme-gcms Using Nano Scale Injection Techniques

ZYED ROUIS, AMEUR ELAISSI, NABIL BEN SALEM ABID, MOHAMED ALI LASSOUED, PIER LUIGI CIONI, GUIDO FLAMINI, MAHJOUB AOUNI Laboratory of Transmissible Diseases and Biological active Substances, Faculty of Pharmacy, Avenue Avicenne, 5000, Monastir, University of Monastir, Tunisia Pharmacognosy Laboratory, Faculty of Pharmacy, Avenue Avicenne, 5000, Monastir, University of Monastir, Tunisia Laboratory...

Air pollution modifies floral scent trails

Floral hydrocarbons provide essential signals to attract pollinators. As soon as they are emitted to the atmosphere, however, hydrocarbons are destroyed by chemical reactions involving pollutants such as ozone. It is therefore likely that increased air pollution interferes with pollinator attracting hydrocarbon signals. To test this hypothesis, a Lagrangian diffusion model was used to determine...

Volatile Profiles of Honeys Using HS-SPME-GC-MS