background: today, in an attempt to reduce the human exposure to synthetic compounds such as chemical preservatives, some studies aimed at the replacement of artificial preservatives with natural ingredients with natural protective effects. methods: in the present study the microbial inhibition effect of saturejaba chtiarica essential oil in three different concentrations (0.1, 0.05, and 0.025%...

the objective of this study was to explore the microbial community diversities and the relationships between microbial community compositions and hydrochemical factors in nitrate contaminated groundwater of hun river alluvial plain. the method of polymerase chain reaction (pcr)-denaturing, gradient gel electrophoresis (dgge) gene fingerprints combined with canonical correspondence analysis（cca）...

Soil microorganisms secrete enzymes used to metabolize carbon (C), nitrogen (N), and phosphorus (P) from the organic materials typically found in soil. Because of the connection with the active microbial biomass, soil enzyme activities can be used to investigate microbial nutrient cycling including the microbial response to environmental changes, transformation rates and to address the location...

Changes in microbial community structure are widely known to occur after soil amendment with low-molecular-weight organic compounds; however, there is little information on concurrent changes in soil microbial functional diversity and enzyme activities, especially following sorbitol and mannitol amendment. Soil microbial functional diversity and enzyme activities can be impacted by sorbitol and...

Sixteen new phthalimide derivatives were synthesized and evaluated for their in vitro anti-microbial, anti-oxidant and anti-inflammatory activities. The cytotoxicity for all synthesized compounds was also determined in cancer cell lines and in normal human cells. None of the target derivatives had any cytotoxic activity. (ZE)-2-[4-(1-Hydrazono-ethyl) phenyl]isoindoline-1,3-dione (12) showed rem...

Antimicrobials have been used extensively as growth promoters (AGPs) in agricultural animal production. However, the specific mechanism of action for AGPs has not yet been determined. The work presented here was to determine and characterize the microbiome of pigs receiving one AGP, tylosin, compared with untreated pigs. We hypothesized that AGPs exerted their growth promoting effect by alterin...

Acalypha manniana (Euphorbiaceae) is a plant popularly used in Cameroon and in several parts of Africa for the treatment of various microbial diseases like diarrhea and skin infections. The present study was designed to evaluate the phytochemical composition, antimicrobial and radical-scavenging activities of A. manniana methanol leaf extract and its fractions. The methanol extract was partitio...

Bioleaching has been employed commercially to recover metals from low grade ores, but the production efficiency remains to be improved due to limited understanding of the system. This study examined the shift of microbial communities and S&Fe cycling in three subsystems within a copper ore bioleaching system: leaching heap (LH), leaching solution (LS) and sediment under LS. Results showed that ...

In the present study, changes in microbial populations, enzyme activity and bacterial community structure contaminated soils were investigated during bioremediation of using Stenotrophomonas sp. strain DXZ9 ryegrass. The results showed that removal rates 81% for DDT 55% DDE (69% DDTs) with ryegrass-microbe. Microbial was remarkably improved, number bacteria increased sharply from 7.32 × 106 to ...

Pseudomonas chlororaphis YL-1 was isolated from soybean root tips and showed a broad range of antagonistic activities to microbial plant pathogens. Here, we report the high-quality draft genome sequence of YL-1, which consists of a chromosome with an estimated size of 6.8 Mb with a G+C value of 63.09%.