In Alzheimer’s disease, amyloid-β peptides and tau proteins assemble into filaments that are thought to be harmful to the brain. Amyloid-β filaments clump together in the space between brain cells and ...

A scanning electron microscope reveals nematodes (highlighted in green) inside the spongy mesophyll of a European beech (Fagus sylvatica) leaf infected with beech leaf disease (BLD). Eggs are marked ...