26.03.2013 - British researchers have found that one single protein seems to control resistance against multiple herbicides of cereal crops weeds.
Multiple-herbicide resistance (MHR) in black-grass and annual rye-grass is a global threat for agriculture, leading to loss of chemical weed control in cereal crops. Until now, it was only poorly understood why MHR is associated with an enhanced ability to detoxify xenobiotics. Assuming an analogy with multiple drug resistance, which occurs in human tumours, researchers from York University and Syngenta now report they have found a possible explanation.
When they searched in black-grass and annual rye-grass for a plant homologue to the MDR causing phi glutathione S transferase (GSTP1) they found an enzyme that also showed both detoxification and signalling. When expressed in Arabidopsis thaliana, the protein termed GSTF1 led to multiple herbicide resistance in the model organism and showed a similar secondary metabolism pattern as the weeds. Those were not associated with a differential gene expression pattern but directly caused by GSTF1.
When they applied the GSTP1 blocker 4-chloro-7-nitro-benzoxadiazole to the weeds, the MHR masterswitch was blocked. They conclude that overexpression of GSTF1 orchestrates multi-herbicide resistance in grass weeds and that targeting the protein is a promising approach to regain weed control in cereal crops.
29.08.2014 Just a week ago, Glaxosmithkline defused the WHO’s claim that an Ebola vaccine could be ready by 2015. Now, the British company’s own candidate vaccine is to be rushed to human trials with the help of funding from an international consortium.
24.08.2014 Germany's Morphosys is licensing a preclinical bi-specific antibody for the treatment of prostate cancer from Emergent Biosolutions. The US developer will rake in up to €138m for the commercialisation rights to the compound.
20.08.2014 Biopharmaceutical contract manufacturer Fujifilm Diosynth Biotechnologies is expanding its cell culture manufacturing capacity further with a new 2,000l single-use bioreactor at the company’s site in Billingham, UK.
08.08.2014 Boehringer Ingelheim is walking away from Swedish Orexo's prostaglandin inhibition project OX-MPI. Germany's largest researching pharmaceutical company had been responsible for the project's research and development since 2005.