Total DNA of various Rhizobium galegae strains representing different geographical origins, and taxonomic divergence was digested with three restriction enzymes separately, Southern blotted, and hybridized with six heterologous probes. The sequence divergences for different pairwise comparisons were calculated from proportions of conserved hybridizing fragments. The unweighted pair group method...

Lúıs F. Seoane1,2,3,@,∗, Xaqúın Loredo, Henrique Monteagudo, and Jorge Mira7,@,∗ 1 Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139. 2 ICREA-Complex Systems Lab, Universitat Pompeu Fabra – PRBB, Dr. Aiguader 88, 08003 Barcelona, Spain. 3 Institut de Biologia Evolutiva, UPF-CSIC, Passg Barceloneta, 08003 Barcelona. 4 Seminario de Sociolingǘıstica da Real Academia...

Objective . The aim of the study was to evaluate effect medicinal plant extracts on insulin sensitivity in model diabetes mellitus. Material and Methods Experiments were carried out using 110 outbred white male rats. Diabetes mellitus induced by administration streptozotocin animals receiving food with a high fat content for formation resistance. injected metformin, rosiglitazone, aqueous nettl...

To investigate the method for quantitatively determining chlorogenic acid in Verbena officinalis L. extract; and to determine its content and in-vitro antibacterial activity. Cylinder-plate method and MIC assay were employed to compare the antibacterial activity between different concentrations of Verbena officinalis L. extracts; and to evaluate the antioxidant activity of various extracts in t...

Six medicinal plants Helichrysum italicum (Roth) G. Don, Angelica archangelica L., Lavandula officinalis L., Salvia officinalis L., Melilotus officinalis L., and Ruta graveolens L. were used. The aim of the study was to compare their extracts obtained by Soxhlet (hexane) extraction, maceration with ethanol (EtOH), and supercritical CO2 extraction (SC-CO2) targeted on coumarin content (by high p...

* Author for correspondence and reprint requests Z. Naturforsch. 54c, 698-703 (1999); received November 17, 1998/March 20. 1999 a-Tocopherol, Photosynthesis, Drought, Rosmarinus officinalis, Melissa officinalis Summer diurnal variations of photosynthesis and a-tocopherol content were measured in relation to natural drought in field-grown rosemary (Rosmarinus officinalis L.) and lemon balm (Meli...