Tag: U.S. Department of Agriculture
Leaf spots on the prairies
Plants face a large number of threats from their surroundings. When microbes such as fungi act as pathogens on plants, they can cause disease. Some fungal pathogens of wheat appear as symptoms of spots on the leaves. Two important fungal species are the tan spot pathogen and the septoria nodorum blotch pathogen. These fungi can infect the same plant and […]
The role of extra chromosomal circular DNA in rapid adaption to glyphosate resistance in pigweed
Plants, like other living organisms, have genetic stress-avoidance mechanisms that allow them to become resistant to specific chemicals when continuously exposed to them. Dr Christopher Saski from Clemson University and Dr William Molin from the U.S. Department of Agriculture are researching the extrachromosomal circular DNA (eccDNA) structure known as the replicon of pigweed, which contains the EPSPS gene, the gene […]