BACKGROUND Medicinal plants are considered new resources for producing agents that could act as alternatives to antibiotics in the treatment of antibiotic-resistant bacteria. The aim of this study was to evaluate the antibacterial activity of 28 plant extracts and oils against four Gram-negative bacterial species. METHODS Experimental, in vitro, evaluation of the activities of 28 plant extrac...

The distributions of endophytic bacteria in Alopecurus aequalis Sobol and Oxalis corniculata L. grown in soils contaminated with different levels of polycyclic aromatic hydrocarbons (PAHs) were investigated with polymerase chain reaction followed by denaturing gradient gel electrophoresis technology (PCR-DGGE) and cultivation methods. Twelve types of PAHs, at concentrations varying from 0.16 to...

The chromosome numbers and karyotypes of eight species the genus Allium distributed in Turkey were analyzed. These taxa are A. armerioides Boiss., orientale stamineum tuncelianum (Kollmann) Özhatay, B.Mathew & Şiraneci, subakaka Razyfard Zarre, muratozelii Armağan, dumanii Koyuncu Koçyiğit colchicifolium Boiss. Four them (A. armerioides, tuncelianum, dumanii) endemic Turkey. all studied determi...