03/09/2014

Wastewater plants blamed for Mexico mass fish death

The death of 3.2 million fish at a lagoon in western Mexico this past week was caused by poorly functioning wastewater treatment plants that failed to filter out untreated material, authorities said.

Cell factory runs with fits and starts

Researchers from FOM institute AMOLF have discovered that metabolism, the process that converts molecules in a cell, proceeds irregularly. As metabolism is the motor that drives all biological activity in cells this instability ...

Airlock-like transport protein structure discovered

Sugars are an essential source of energy for microrganisms, animals and humans. They are produced by plants, which convert energy from sunlight into chemical energy in the form of sugars through photosynthesis.

Cellular RNA can template DNA repair in yeast

The ability to accurately repair DNA damaged by spontaneous errors, oxidation or mutagens is crucial to the survival of cells. This repair is normally accomplished by using an identical or homologous intact sequence of DNA, ...

Tree frogs speed up their life cycle when becoming lunch

Think again if you've always believed that events in the life cycle of animals happen consistently, almost rigidly, as part of the natural rhythm of nature. Studies by Sinlan Poo and David Bickford of the National University ...

Pesticide risk assessments seen as biased

In the October issue of BioScience, a group of ecotoxicologists argue that the US Environmental Protection Agency's (USEPA) current practices for evaluating pesticide safety are inadequate and likely to result in decisions ...

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