Exotic plant species impact belowground processes by influencing resource availability through enhanced microbial activity as a consequence of litter inputs. We have little understanding of the impact of microbe-driven nutrient fluctuations on the biomass accumulation of invasive species. Here we attempt to answer the question on whether soil community-driven nitrogen availability influences in...

Depth variations of total mercury (Hg) and methylmercury (MeHg) concentrations were obtained in cores from nonvegetated sediments, sediments colonized by Sarcocornia fruticosa, Halimione portulacoides, and Spartina maritima and below-ground biomass in three Portuguese estuaries. Similar analyses were also performed on the above-ground plant tissues. Concentrations in below-ground biomass exceed...

The application of enzymes such as laccase and xylanase for the preparation of cellulose from lignocellulosic material is an option for those industries seeking to reduce the use of chlorine-containing bleach agents, thus minimizing the environmental impact of their processes. Mixed hydrolytic and oxidative enzyme systems have been well described in the context of biopulping, and thus provide g...

Some publications are indicating that the evaluation of kinetic parameters of Activated Sludge Models (ASM), is influenced by enzymatic regulation. The objective of this paper is to present an activated sludge model which mimics the enzymatic induction at the transcription level of active biomass within the frame of ASM models. The model has been fit on data found in literature. The proposed mo...

According to the time-dependent phosphorus budget model in Stigebrandt (2018), the winter surface water phosphorus (P) concentration c1 in the Baltic proper (BP) adjusts to the Total P Source (TPS). The model shows that the BP can be restored by turning off the Internal P Source (IPS) emanating from anoxic bottoms. At present, IPS accounts for about 70% of TPS. IPS may be turned off by (natural...

The human malaria parasite Plasmodium falciparum goes through a complex life cycle, including a roughly 48-hour-long intraerythrocytic developmental cycle (IDC) in human red blood cells. A better understanding of the metabolic processes required during the asexual blood-stage reproduction will enhance our basic knowledge of P. falciparum and help identify critical metabolic reactions and pathwa...