News tagged with toxicity

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The five most poisonous substances

With the announcement of an inquiry into the murder of Alexander Litvinenko, talk of poisons is back in the news. There are many articles with lists of the most poisonous substances, which are often gathered based on their acute toxicity as measured by something called LD ...

3 hours ago 5 / 5 (1) 6

A bacterial ballistic system

Many pathogenic bacteria use special secretion systems to deliver toxic proteins into host cells. Researchers of Ludwig-Maximilians-Universitaet (LMU) in Munich have determined the structure of a crucial ...

Jun 20, 2014 5 / 5 (3) 0

Mycotoxin protects against nematodes

Researchers at ETH Zurich have isolated a protein from a fungus of the spruce which combats nematodes. The scientists hope that toxins of this kind will become the basis for the vaccination of livestock or ...

May 27, 2014 5 / 5 (2) 0

Predicting bioavailable cadmium levels in soils

New Zealand's pastoral landscapes are some of the loveliest in the world, but they also contain a hidden threat. Many of the country's pasture soils have become enriched in cadmium. Grasses take up this toxic heavy metal, ...

Apr 15, 2014 5 / 5 (1) 0