Polyploidization constitutes a common mode of evolution in flowering plants. This event provides the raw material for the divergence of function in homeologous genes, leading to phenotypic novelty that can contribute to the success of polyploids in nature or their selection for use in agriculture. Mounting evidence underlined the existence of homeologous expression biases in polyploid genomes; ...

to explore the potential for in vitro rapid regeneration of fagonia indica burm., cotyledon explants were obtained from 10-day old aseptically germinated seedlings that cultured on ms medium which supplemented with 1.0-5.0 µm 2,4-d. callus was initiated from cotyledon explant on ms medium supplemented in all concentrations of 2,4-d investigated. 2,4-d was more effective than iaa and naa for cal...

The southwestern highlands forests of Ethiopia are the origin of the coffee plant Coffea arabica. The production of coffee in this area is affected by tracheomycosis caused by a soil-born fungus Gibberella xylarioides. The use of endemic antagonistic strains of mycoparasitic Trichoderma species would be a nature conserving means to combat this disease. We have used molecular methods to reveal t...

Four plants having known medicinal properties were screened for inhibition of goatpox virus (GTPV) replication in vitro. Of the 4 plants, extract of Acacia arabica (Babul) and Eugenia jambolana (Jamun) leaves had inhibition (%) 99.70 and 99.92 at their maximum non toxic concentrations, 99.93 +/- 0.38 and 1999.73 +/- 0.50 microg/ml, respectively in all cytopathic effect (CPE) inhibition assays. ...

BACKGROUND Over the past years, dust of green coffee beans has become known to be a relevant cause for occupational type I allergies. Up to now, allergy diagnostics is based on native green coffee bean extract which exhibits insufficient specificity due to interfering substances as well as batch-to-batch variations. No coffee allergen has been described on the molecular level so far. The aim of...

In vitro antioxidant activities and neuronal cell protective effects of ethanol extract from roasted coffee beans were investigated. Colombia arabica coffee (Coffea arabica) green beans were roasted to give medium (230°C, 10 min), city (230°C, 12 min) and french (230°C, 15 min) coffee beans. Total phenolics in raw green beans, medium, city and french-roasted beans were 8.81±0.05, 9.77±0.03, 9.9...

The montane rainforests of SW Ethiopia are the primary centre of diversity of Coffea arabica and the origin of all Arabica coffee cultivated worldwide. This wild gene pool is potentially threatened by forest fragmentation and degradation, and by introgressive hybridization with locally improved coffee varieties. We genotyped 703 coffee shrubs from unmanaged and managed coffee populations, using...