pseudomonas aeruginosa is an important opportunistic pathogen causing widespread infections by numerous virulence factors. increasing resistance to antibiotics makes the pseudomonas infections treatment further difficult. the purpose of this study was to evaluate antimicrobial characteristics of essential oils from matricaria chamomilla, artemisia persica, zataria multiflora, myrtus communis, r...

1Laboratoire de Physiologie Intégrée, Faculté des Sciences de Bizerte, 7021 Zarzouna, Université de Carthage, Tunisia ; 2Laboratoire de Physiologie Fonctionnelle et Valorisation des BioRessources Institut Supérieur de Biotechnologie de Béja, Université de Jendouba, Avenue Habib Bourguiba B.P. 382 9000 Béja, Tunisia ; 3Laboratoire d'anatomie pathologique humaine et expérimentale, Institut Pasteu...

The chemical composition of the essential oil of Portuguese myrtle was determined at different developmental stages of the plant: pre-flowering, flowering, unripe and ripe berries. The oil was extracted separately by Clevenger distillation from leaves, branches and berries. The yields vary from 0.33% to 0.74% for leaves, 0.02% to 0.19% for branches, and 0.11% to 0.23% for berries. The highest y...

Homalodisca vitripennis (Germar) and related species have caused millions of dollars in damage to southern California vineyards in recent years through the vectoring of Pierce's disease. However, the effects of surrounding vegetation on the dispersal and distribution of H. vitripennis are poorly understood. Therefore, the relationship between dispersal rates and patch quality was tested, as wel...

Natural dyeing is a rather ancient method. It known that self-growing, agricultural plants in Nature have been used since times as material for painting parts such leaves, fruits, flowers, branches, seeds, stems and roots. Plants the shades obtained from these are important sources of natural dyestuffs. Nowadays, with development technology, methods gradually losing their importance. But, carpe...