Chemical herbicides have long been the panacea against unloved plants in the field. However, the use of pesticides such as glyphosate has long been controversial and the consequences for the environment - especially biodiversity - are alarming. In addition to new resistant plant varieties, researchers are therefore working on new technologies to counteract the trend with environmentally friendly methods.
The varroa mite is the greatest threat to the western bee (Apis mellifera). The tiny parasite Varroa destructor feeds on its body fluid and attacks larvae in the hive, damaging its offspring and causing entire hives to die. "After about 18 months after the first infection, a hive is dead if nothing is done about it," says Dr. Stanislav Balouchev of the Max Planck Institute for Polymer Research. Together with Katharina Landfester, the researcher hopes to use smart technology to protect bees from this scourge.
The potato is the third most important cultivated plant in the world and several thousand varieties have emerged since the beginning of its cultivation. And yet it is a "problem child" for plant breeders, as its biological properties do not make it easy for them: the potato's genetic material is tetraploid, which means that there are four copies of each gene, each of which can be different. It is difficult to tell which version - or even which combination of versions - promises the best properties for the plant.
Plant pests and infectious diseases destroy large parts of agricultural harvests every year. The losses would be even greater if there were no chemical-synthetic pesticides. But they also have their downsides: “Too high a dosage can lead to contamination of the groundwater and deterioration in soil fertility," explains Frank Ewert, Scientific Director of the Leibniz Centre for Agricultural Landscape Research (ZALF).
Many countries have already put the bioeconomy on the political agenda to drive social and economic change in the country. According to a study by the Bioeconomy Council, an advisory body to the German government, 49 countries - including Brazil - have launched bioeconomy programmes to date. International cooperation is becoming increasingly important on the road to a bioeconomy.
Proteins form the basis of all processes in living cells. In order to understand these processes, it is important to identify the proteins involved and also to recognize when they deviate from the norm and thus possibly cause diseases. Researchers at the Technical University of Munich have now developed a method with which large quantities of proteins can be analyzed with unprecedented reliability. So far, mass spectrometry (MS) has been the bioanalytical method of choice for identifying proteins.
From children's toys to crockery and shopping bags, many everyday products are already made of bioplastics, and the trend is on the rise. However, the use of biobased plastics is by no means without controversy. Bio-based plastics usually consist of renewable raw materials such as corn or starch and thus replace fossil raw materials. However, bioplastics are by no means automatically biodegradable and are often just as difficult to degrade as their petroleum-based counterparts.
Big news in stem cell research in farm animals: Together with colleagues from Great Britain and China, scientists from the Friedrich Löffler Institute (FLI) in Mariensee, Germany, have created a novel variant of pluripotent stem cells in pigs. Using a special nutrient medium, the researchers have obtained embryonic stem cell lines (ES) with "expanded potential" from pig embryos (Expanded Potential Stem Cells, EPSCs).
Sustainability and Artificial Intelligence (AI) are two megatrends in the economy. The Institute for Innovation and Technology (IIT) in Berlin has now carried out a study on behalf of the Federal Environment Agency to analyze where these trends could possibly collide or mutually enrich each other. The result was six scenarios with the respective starting points for a modern environmental policy.
In 2011, a scandal shook the food industry: In Germany, around 4,000 cases of infection with EHEC, the enterohaemorrhagic bacterium Escherichia coli, occurred, and a quarter of these cases were particularly severe. 53 people died. Contaminated sprouts were identified as the cause of the EHEC outbreak. Scientists at the Max Rubner Institute (MRI), the Federal Research Institute for Nutrition and Food, have now investigated the extent to which vegetables and salads are currently microbially contaminated. The results vary greatly, but reveal a major problem.