The interactions between plants and pollinators are complex. Flower volatiles as special olfactory cues could influence the foraging choices of pollinators. Here, we conducted bioassays to evaluate role flower on attraction honey bees (native Apis cerana exotic mellifera) pears Pyrus bretschneideri communis). Chemical electrophysiological approaches were used determine antennal responses from p...

(E,E)-alpha-Farnesene was extracted as the main component of the volatile fraction of male Viscum album L. Male and female flowers of V. album L. growing on different host trees were analysed by solid phase microextraction and by lipophilic extraction.

BACKGROUND Aphids are agricultural pests of great economical interest. Alternatives to insecticides, using semiochemicals, are of difficult applications. In fact, sex pheromones are of little use as aphids reproduce partenogenetically most of the time. Besides, the alarm pheromone, (E)-ß-farnesene for a great number of species, is difficult to synthesize and unstable in the environment. The sea...

The development of sustainable replacements for fossil fuels has been spurred by concerns over global warming effects. Biofuels are typically produced through fermentation of edible crops, or forest or agricultural residues requiring cost-intensive pretreatment. An alternative is to use photosynthetic cyanobacteria to directly convert CO2 and sunlight into fuel. In this thesis, the cyanobacteri...

The research was carried out at the Federal Research Center named after I.V. Michurin (Tambov region, Russia), using a promising apple cultivar Berkutovskoye with high susceptibility to superficial scald. aim of study influence storage technologies different oxygen content in atmosphere on losses from scald and other diseases fruit cv. Berkutovskoye. Control 1-MCP-treated fruits were stored und...

The floral aroma, sometimes known as an incorporeal gift of flowers, is one the primary ornamental features plants. Flowers genus Tilia are fragrant and have great value for development utilization. In this study, first time, headspace solid-phase microextraction (HS-SPME) gas chromatography-mass spectrometry (GC-MS) combined with chemometrics were used to analyze dynamic variations scent compo...

Background & Aim: White horehound (Marrubium vulgare L.) is a perennial medicinal plant of the family Lamiaceae. The aim of this study was to identify of the chemical components of white horehound collected from Isfahan.  Experimental: The aerial parts of M. vulgare were collected from (Kamu Mountain) Isfahan province central of Iran, during 2014. The essential oils of sample...

The volatile composition of different apple varieties of Malus domestica Borkh. species from different geographic regions at Madeira Islands, namely Ponta do Pargo (PP), Porto Santo (PS), and Santo da Serra (SS) was established by headspace solid-phase microextraction (HS-SPME) procedure followed by GC-MS (GC-qMS) analysis. Significant parameters affecting sorption process such as fiber coating...

Volatile organic compounds (VOCs) are produced by soil-borne microorganisms and play crucial roles in fungal interactions with plants phytopathogens. Although VOCs have been characterized Trichoderma spp., the mechanisms against phytopathogens strongly differ according to strain pathosystem. This study aimed at characterizing three strains used as biofungicides investigate their effects grapevi...