Parameters characterizing the structure of the decomposer food web, biomass of the soil microflora (bacteria and fungi) and soil micro-, meso- and macrofauna were studied at 14 non-reclaimed 1- 41-year-old post-mining sites near the town of Sokolov (Czech Republic). These observations on the decomposer food webs were compared with knowledge of vegetation and soil microstructure development from...

Root surface colonization by Azospirillum brasilense Cd of tomato, pepper and cotton plants under normal growth conditions and soybean plants under normal and water-stress conditions was monitored by scanning electron microscopy and bacterial counts. A. brasilense Cd was capable of efficiently colonizing the elongation and roothair zones of all four plant species tested. In these zones, the bac...

Total, fluorescent, and pectolytic epiphytic bacterial population sizes were quantified on leaves of different age groups of broad-leaved endive during field cultivation from leaf emergence until harvest. Greater bacterial population densities (log(inf10) CFU per square centimeter) were observed on outer leaves than on inner leaves of the plants throughout the growing season. These differences ...

We investigated the in vitro effects of seven fluoroquinolones (ciprofloxacin, grepafloxacin, levofloxacin, moxifloxacin, norfloxacin, ofloxacin, and rufloxacin), compared to those of trimethoprim-sulfamethoxazole (SXT) and ceftazidime on total biomass and cell viability of Stenotrophomonas maltophilia biofilm. S. maltophilia attached rapidly to polystyrene, within 2 h of incubation, and then b...

background the cause of death in burn patients after 48 hours of hospitalization has been reported to be bacterial infections. recently, due to the compounds accelerating the healing process and the intense reduction of treatment side effects, medicinal plants are used to cure burn wound infections. this study aims to investigate the medicinal effect of the ethanolic extract of scrophularia str...

The mammalian intestinal tract contains a complex and diverse society of both pathogenic and non-pathogenic bacteria. While it is estimated that there are more than 400 bacterial species inhabiting the human intestinal tract, many of these are uncultivated micro-organisms that have complex interactions with other microflora and their host. Recent advances in molecular biology and genetics will ...

Radiation from the sun has different effects upon living organisms. It has been found, for instance, that ultra-violet rays of a certain wavelength present in the radiation from the sun stop the multiplication of bacteria and other micro-organisms. Good use can be made of this, without having to depend upon sunlight, by employing a low-pressure, mercury-vapour lamp emitting rays which have a sp...

Bacterial cellulose (BC) is a suitable drug delivery carrier owing to the nanofibrous micro and mesoporous structure. One of unique aspects tunability BC microstructure by addition certain additives in growth medium during synthesis bacteria. In present work, was situ modified adding Polyethylene glycol 2000 (PEG 2000). Effect modification on crystallinity, chemical composition, morphology and,...