Soil microbial properties are known to exhibit high spatial and temporal variability, which can hinder our understanding of the effects of agricultural management on soil microbial activities, populations and communities. However, if this variability is explicitly considered in soil sampling schemes, experimental results can help us better understand soil microbial properties. In this initial a...

A series of new fluorinated coumarins and 1-aza coumarins have been synthesized and the presence of fluorine in these molecules and its effect on their anti-microbial, anti-inflammatory and analgesic activities are discussed. The results of bioassay showed that these newly synthesized compounds containing fluorine exhibit moderate analgesic and excellent anti-inflammatory and potential anti-bac...

Two potent anti-MRSA tanshinone glycosides (1 and 2) were discovered by targeted microbial biotransformation, along with rapid identification via MS/MS networking. Serial reactions including dehydrogenation, demethylations, reduction, glycosylation and methylation have been observed after incubation of tanshinone IIA and fungus Mucor rouxianus AS 3.3447. In addition, tanshinosides B (2) showed ...

The potential excessive nutrient and/or microbial loading from mismanaged land application of organic fertilizers is forcing changes in animal waste management. Currently, it is not clear to what extent different rates of poultry litter impact soil microbial communities, which control nutrient availability, organic matter quality and quantity, and soil degradation potential. From 2002 to 2004, ...

Climate-induced changes in soil microbial physiology impact ecosystem carbon (C) storage and alter the rate of CO2 flux from soils to the atmosphere (Allison et al., 2010). The direction and magnitude of these microbial feedbacks depend on changes in saprotrophic bacterial and fungal C allocation in response to altered temperature, precipitation, and nutrient availability. Soil microbes may dif...

The purpose of this study was to test flower and leaf extracts against some gram-positive and gram -negetive bacteria. Two different microbial tests were performed; extract antibiogram, and determination of MIC (minimum inhibitory concentration) of extracts. The results showed that antimicrobial activities of extracts were notable on a wide spread of bacterias, especially on the choosen bacteri...

The purpose of this study was to test flower and leaf extracts against some gram-positive and gram -negetive bacteria. Two different microbial tests were performed; extract antibiogram, and determination of MIC (minimum inhibitory concentration) of extracts. The results showed that antimicrobial activities of extracts were notable on a wide spread of bacterias, especially on the choosen bacteri...

Some new b-lactams bearing biologically important morpholine ring have been synthesized by acylation of amino b-lactams in the presence of morpholine-4-carbonyl chloride. These novel β-lactams were prepared under mild reaction conditions without any solvent in short reaction times. Their biological activities have been examined against microbial agents such as Staphylococcus aureus (S. aureus),...

The increasing input of anthropogenically derived nitrogen (N) to ecosystems raises a crucial question: how does available N modify the decomposer community and thus affects the mineralization of soil organic matter (SOM). Moreover, N input modifies the priming effect (PE), that is, the effect of fresh organics on the microbial decomposition of SOM. We studied the interactive effects of C and N...

A long-term field experiment utilising barley received four different treatments prior to sowing: municipal solid waste (MSW) compost at either 20 t ha (C20) or 80 t ha (C80); cow manure (MA) at 20 t ha; mineral fertilizer (MIN) or NPK (400 kg ha); and NH4NO3 (150 kg ha). The effects of these applications on soil enzyme activities and microbial biomass at crop harvest were measured after nine y...