نتایج جستجو برای: metalloid stress
تعداد نتایج: 439118 فیلتر نتایج به سال:
This chapter will focus on the formation processes and fate of the more common methylated metals and metalloids in the aquatic environment, focusing on both the ocean and freshwa‐ ter ecosystems. In addition to the formation of the methylated compounds, the biotic and abiotic degradation of these compounds in the natural environment will also be discussed. The formation pathways and the microbe...
Arsenic is widely distributed in nature and all organisms possess regulatory mechanisms to evade toxicity and acquire tolerance. Yet, little is known about arsenic sensing and signaling mechanisms or about their impact on tolerance and detoxification systems. Here, we describe a novel role of the S. cerevisiae mitogen-activated protein kinase Hog1p in protecting cells during exposure to arsenit...
Trace elements are chemical elements needed in minute amounts for normal physiology. Some of the physiologically relevant trace elements include iodine, copper, iron, manganese, zinc, selenium, cobalt and molybdenum. Of these, some are metals, and in particular, transition metals. The different electron shells of an atom carry different energy levels, with those closest to the nucleus being low...
Bacterial isolates from water and sediment samples from freshwater, estuarine and marine regions were tested for their growth in the presence of different concentrations of arsenic. Despite the generation times being longer in case of all bacterial isolates tested in nutrient broth with 200 ppm Arsenite (As(3+)), many of them were able to attain log phase and substantial growth variously betwee...
Thesis Abstract Hexokinase 2 enzyme catalyzes the rate-limiting step in glycolysis. It is overexpressed several carcinomas including breast cancer to sustain energy for rapidly dividing cells and associates with chemoresistance. However, impact of chemo drugs alone or combination on hexokinase activity autophagic cell death unclear. Arsenic trioxide (As2O3) (ATO) a metalloid potent antineoplast...
The consequences of climate change, and the increased accumulation metalloids, like arsenic (As), in environment, are significantly affecting crop performance yield. Arsenic interferes with various plant biochemical physiological processes, which result diminished growth development. Magnesium oxide nanoparticles (MgO-NPs) can improve contribute to tolerance heavy metal/metalloid toxicity. Duri...
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