Sewage waste represents an ecosystem of complex and interactive microbial consortia which proliferate with different kinetics according to their individual genetic as well as metabolic potential. We performed metagenomic shotgun sequencing on Ion-Torrent platform, to explore the microbial community structure, their biological interactions and associated functional capacity of pre-treated/raw sl...

Cederlund H. 2006. The microbiology of railway tracks – towards a rational use of herbicides on Swedish railways. Doctoral thesis. Swedish railways are regularly treated with herbicides in order to keep the track beds free from weeds. However, finding appropriate preparations and dosages that provide a good weed control but that are still environmentally acceptable, has proven to be difficult. ...

We evaluated the effect of frequency and amount of rumen-degradable intake protein (DIP) on urea kinetics in steers consuming prairie hay. Five ruminally and duodenally fistulated steers (366 kg of BW) were used in a 5 x 5 Latin square and provided ad libitum access to low-quality prairie hay (4.7% CP). Casein was provided daily in amounts of 61 and 183 mg of N/kg of BW (61/d and 183/d) and eve...

Rising temperatures are expected to reduce global soil carbon 1 (C) stocks, driving a positive feedback to climate change1–3. 2 However, the mechanisms underlying this prediction are not 3 well understood, including how temperature a ects microbial 4 enzyme kinetics, growth e ciency (MGE), and turnover4,5. 5 Here, in a laboratory study, we show that microbial turnover 6 accelerates with warming...

The performance of sulfate-reducing permeable reactive barriers (PRB) used for the treatment of acid-mine drainage is critically affected by kinetics of cellulose decomposition and substrate production, as well as by kinetics of sulfate reduction and methanogenesis. When biofilm models are considered, the rate of substrate diffusion into the biofilm also affects performance. In this regard, res...

Rising temperatures are expected to reduce global soil carbon (C) stocks, driving a positive feedback to climate change1–3. However, themechanisms underlying this prediction are not well understood, including how temperature a ects microbial enzyme kinetics, growth e ciency (MGE), and turnover4,5. Here, in a laboratory study, we show thatmicrobial turnover accelerates with warming and, along wi...

Stream and lake ecosystems in agricultural watersheds are exposed to fungicide inputs that can threaten the structure and functioning of aquatic microbial communities. This research analyzes the impact of the triazole fungicide tebuconazole (TBZ) on natural biofilm and plankton microbial communities from sites presenting different degrees of agricultural contamination. Biofilm and plankton comm...

Bioremediation of polycyclic aromatic hydrocarbons (PAHs) in contaminated soils are reported many literatures. Composting, addition to bioremediation, can simultaneously increase soil organic matter content and fertility is thus regarded as one the most cost-effective methods remediation. In this study, biodegradation phenanthrene (PHE) pyrene (PYR) by microbial consortia enriched vermicompost....

UNLABELLED Direct, mediator-free transfer of electrons between a microbial cell and a solid phase in its surrounding environment has been suggested to be a widespread and ecologically significant process. The high rates of microbial electron uptake observed during microbially influenced corrosion of iron [Fe(0)] and during microbial electrosynthesis have been considered support for a direct ele...