EPPO Global Database

Melampsora medusae(MELMME)

Photos

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Urediniospores and paraphyses of Melampsora medusae f. sp. deltoidae observed by light microscopy. Note the smooth (non-echinulate) patches at the equator of the urediniospores, and the thin (3-6 µm) paraphyse wall.

Courtesy: Pascal Frey (INRAE, Nancy, France)

Melampsora medusae f. sp. deltoidae urediniospores observed by scanning electron microscopy. Note the smooth (non-echinulate) patches at the equator of the urediniospores

Courtesy: Pascal Frey (INRAE, Nancy, France)

Poplar nursery trial, showing strong differencies in the susceptibility of poplar genotypes to Melampsora medusae f. sp. deltoidae (Pointe Platon, Lotbinière, Quebec, Canada)

Courtesy: Pascal Frey (INRAE, Nancy, France)

Poplar nursery trial, showing strong differencies in the susceptibility of poplar genotypes to Melampsora medusae f. sp. deltoidae (Pointe Platon, Lotbinière, Quebec, Canada)

Courtesy: Pascal Frey (INRAE, Nancy, France)

Spermogonie of M. medusae on Larix decidua, following inoculation of needles in the glasshouse with basidiospores.

Courtesy: A.L. Schippers Jr - USDA (US).

Yellowish uredia of M. medusae on the underside of leaves of poplar.

Courtesy: A.L. Schippers Jr - USDA (US).