A wide range of medicinal plant parts that possess varied medicinal properties are used for extracts as raw drugs. In this study, the ethanolic extract obtained from aerial parts of fennel (Foeniculum vulgare Mill.) seedlings was evaluated in vitro to examine their antimicrobial activity against four Gram-negative and three Gram-positive bacteria and two fungi. Aerial parts of one-month-old see...

The genus Mycobacterium, which is a member of the high G+C group of Gram-positive bacteria, includes important pathogens, such as M. tuberculosis and M. leprae. A recent publication in PNAS reported that M. marinum and M. bovis bacillus Calmette-Guérin produce a type of spore known as an endospore, which had been observed only in the low G+C group of Gram-positive bacteria. Evidence was present...

Plant growth and development are significantly influenced by the presence and activity of microorganisms. To date, the best-studied plant-interacting microbes are Gram-negative bacteria, but many representatives of both the high and low G+C Gram-positives have excellent biocontrol, plant growth-promoting and bioremediation activities. Moreover, actinorhizal symbioses largely contribute to the g...

We have investigated how doubly selective synthetic mimics of antimicrobial peptides (SMAMPs), which can differentiate not only between bacteria and mammalian cells, but also between Gram-negative and Gram-positive bacteria, make the latter distinction. By dye-leakage experiments on model vesicles and complementary experiments on bacteria, we were able to relate the Gram selectivity to structur...

this study was carried out to evaluate the antimicrobial and antioxidant effectiveness of different extracts from aerial parts of six salvia species including salvia ceratophylla, salvia chorassanica, salvia leriifolia, salvia macrosiphon, salvia chloroleuca and salvia virgata. the effect of the extracts against 3 gram positive and 3 gram negative bacteria was tested by the micro dilution metho...

in this study, the bacterial diversity in the activated sludge system of a full-scale municipalwastewater treatment plant in dubai was monitored over a period of one year using ribosomal rna (rrna)targeted oligonucleotide probes for a defined phylogenetic group of bacteria by the fluorescence in situhybridization (fish) technique. the largest fraction of the bacterial community in the sludge sa...

Benzylpenicillin potassium (penicillin G) is a narrow-spectrum penicillin (active against Grampositive aerobes, facultative aerobes and obligate anaerobes), often used in rabbits for treatment of pasteurellosis, odontogenic abscesses and treponematosis. However, several dosages and treatment regimes have been advocated; three times daily, once a day, or once every two or seven days (Welch et al...

aims: the internal unit and icu of hospitals are a suitable environment for growing of bacteria such as staphylococcus epidermidis and pseudomonas, acinetobacter. the aim of our study was to evaluate the effect of different disinfectants on bacteria isolated from the surface of hospitals in isfahan. instrument & methods: in this study, 200 samples were randomly selected from different parts of ...