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Limited oxidative stress in common carp (**Cyprinus carpio, L.**, 1758) exposed to a sublethal tertiary (Cu, Cd and Zn) metal mixture Universiteit Antwerpen
Analyzing effects of metal mixtures is important to obtain a realistic understanding of the impact of mixed stress in natural ecosystems. The impact of a one-week exposure to a sublethal metal mixture containing copper (4.8 μg/L), cadmium (2.9 μg/L) and zinc (206.8 μg/L) was evaluated in the common carp (Cyprinus carpio). To explore whether this exposure induced oxidative stress or whether defense mechanisms were sufficiently fitting to prevent ...
Mixed metal and temperature stress in aquatic environments Universiteit Antwerpen
Worldwide, aquatic ecosystems are under threat from metal pollution. Natural environments receive a wide variety of compounds and the prediction of mixture toxicity based on the toxicity of single compounds is difficult and shows a certain degree of uncertainty. Moreover, the effects of metal mixtures together with the effect of the temperature on toxicological processes remain very poorly documented. Considering that the temperature is one of ...
Stress, oorzaken van stress en de mentale en fysieke gezondheid bij leraren en schoolleiders. Een intercomparatief perspectief. Vrije Universiteit Brussel
Do mixture effects of metal stress (Cu) and natural stress (cyanobacterial toxins) add up in Daphnia magna? Universiteit Gent
Does the stress tolerance of mixed grassland communities change in a future climate? A test with heavy metal stress (zinc pollution) Universiteit Antwerpen
Will species that are sensitive/tolerant to Zn pollution still have the same sensitivity/tolerance in a future climate? To answer this question we analysed the response of constructed grassland communities to five levels of zinc (Zn) supply, ranging from 0 to 354 mg Zn kg−1 dry soil, under a current climate and a future climate (elevated CO2 and warming). Zn concentrations increased in roots and shoots with Zn addition but this increase did not ...
Essential trace metals in plant responses to heat stress Universiteit Hasselt
This work provides an overview of reciprocal interactions between trace metal homeostasis and heat stress responses in plants. Essential trace metals function as structural components or cofactors in many proteins involved in a wide range of physiological processes in plants. Hence, trace metal deficiency can significantly hamper plant growth and development. On the other hand, excess concentrations of trace metals can also induce phytotoxicity, ...
Heavy metal stress in plants Universiteit Hasselt
# Uptake and Distribution of Metals in Plants # Metal Stress Affects the Plant's Physiology # Unraveling the Cellular Responses of Metal Stress # Signaling Under Metal Stress
The Influence of Metal Stress on the Availability and Redox State of Ascorbate, and Possible Interference with Its Cellular Functions Universiteit Hasselt
Worldwide, metals have been distributed to excessive levels in the environment due to industrial and agricultural activities. Plants growing on soils contaminated with excess levels of metals experience a disturbance of the cellular redox balance, which leads to an augmentation of reactive oxygen species (ROS). Even though the increased ROS levels can cause cellular damage, controlled levels play an important role in modulating signaling ...
Determination of the flow stress and contact friction of sheet metal in a multi-layered upsetting test Vrije Universiteit Brussel
This paper describes the identification of hardening parameters of DC05 sheet metal and contact friction coefficients using a multi-layered upsetting test (MLUT), the modified two specimen method (MTSM) and a finite element based inverse method. The MTSM is adopted in order to identify the friction coefficient between the tools and the stacked circular specimens which are cut from the base material by spark erosion. Next, the hardening behaviour ...