Puccinia lagenophorae, Rust Spores : 2012

Photograph by

Gerd-A. Günther

About this image

Light micrograph of a section of the stem of a common groundsel (Senecio vulgaris) infected with spores of a rust fungus Puccinia lagenophorae. The spores are in the yellow patches at centre forming two clustered spots each about 50 micrometres wide. P. lagenophorae is parasitic to the common groundsel. Rusts such as this rarely kill their host but can severely debilitate individual plants. This is a major consideration in agriculture where rusts form on cereal crops. This image was captured using a Leica DMLB microscope and dark field illumination and a Canon digital camera. Düsseldorf, Germany