Neonicotinoids causes a change in gene activity in bees
New research from the University of Nottingham (UK), shows that exposure of bees neonicotinoids, causes changes in gene activity.
Study (Transient Exposure to Low Levels of Insecticide Affects Metabolic Networks of Honeybee Larvae), published in the scientific journal PLOS ONE, absolutely supports their conclusions recent decision of the new Regulation of European Commission to temporarily suspend the application of three neonicotinoids, on suspicion of having links with the disappearance of bees, which pollination at our table made a third of the food we eat every day.
The study was conducted in a realistic field conditions, and it is shown that very low doses of neonicotinoids only 2 ppb (2 parts per million) show the effect on the activity on some genes of honey bees.
The researchers found that the activity of genes involved in the breakdown of toxins was increased, probably to overcome just neonicotinoids. Neonicotinoids also affected genes involved in the regulation of energy activities and initiation of the cell. It is known that those same changes shorten the life of the insect in scientific research – and to reduce the probability that the larvae develop into adult bee.
Dr. Stöger stated that although the larvae continue to grow and develop in the presence of imidacloprid, the stability of the development process is compromised. If the bees are exposed to additional stresses, such as various diseases, the varroa mite, or poor climatic conditions, can increas the probability of occurrence of developmental disorders of the bees.
This study was financed from The Co-operative Group, as part of project “Plan Bee”.
Chris Shearlock, Sustainable Development Manager at The Co-operative, said: “This is a very significant piece of research, which clearly shows clear changes in honeybee gene activity as a result of exposure to a pesticide, which is currently in common use across the UK.
Source: spos.info, American Bee Journal