Abstract In the present study, nanoparticles of copper and copper oxides were synthesized and their antibacterial activity was evaluated and compared with silver nanoparticles. The nanoparticles were synthesized using facile chemical reactions, and then characterized using field emission scanning microscopy. The nanoparticles were stable for at least two weeks. The...

Background: Plant extracts and essential oils are commonly used in traditional and industrial doogh products to inhibit bacterial activities. Objective: In this study, the antibacterial effects of the essential oils of Olivera decumbens and Nepeta binaludensis against Staphylococcus aureus and Escherichia coli in doogh were investigated. Methods: Essential oils of Olivera decumbens and Nepeta...

Soil is considered as the hot-spot region of beneficial plant-microbe association. A wide range of soil microbial categories like nitrogen-fixing bacteria, ecto and endo-mycorrhizal fungi and plant growth-promoting bacteria and fungi are seemed to be associated with this beneficial plant-microbe association. The soil microbes confer increased plant growth and productivity against the root patho...

Rhizosphere response was studied as a factor in competition among indigenous Rhizobium japonicum serogroups for the nodulation of soybeans under field conditions. R. japonicum serogroups 110, 123, and 138 were found to coexist in a Waukegan field soil where they were determined to be the major nodulating rhizobia in soybean nodules. Competitive relationships among the three serogroups in that s...

Background: The social amoeba Dictyostelium discoideum is a soil-dwelling microbe, which lives most of its life cycle in the vegetative stage as a predator of bacteria and as prey for nematodes. When bacteria are sparse, amoebae aggregate into a multicellular fruiting body. Some clones of D. discoideum have agriculture (Brock et al., 2011). They carry bacteria through the social stage, eat them...

gum of butea monosperma is used to treat microbial and fungal infections in folk medicine. to validate this use, the in- vitro antimicrobial activity of petroleum ether and alcoholic extract of butea monosperma gum was evaluated against various microbial strains such as staphylococcus aureus, bacillus subtilis, bacillus cereus, salmonella typhimurium , pseudomonas aeuriogenosa, escherichia coli...

Background and objectives: Methicillin-resistant Staphylococcus aureus (MRSA) has resulted in a worldwide threat due to the virulence and broad distribution in the hospital and community. Novel antibiotics are required to combat the emergence of multidrug-resistant bacteria such as MRSA. In the present study, the antibacterial activity of Trachyspermum ammi es...

Understanding the origins and evolutionary trajectories of symbiotic partnerships remains a major challenge. Why are some symbioses lost over evolutionary time whereas others become crucial for survival? Here, we use a quantitative trait reconstruction method to characterize different evolutionary stages in the ancient symbiosis between legumes (Fabaceae) and nitrogen-fixing bacteria, asking ho...