Downey Mildew
05 Jan 2022
N.B. I no-longer have the originals, so I cannot upload a scanned version
The ink painting/ drawings show infection caused by downy mildew (oomycetes belonging to the Peronosporaceae).
Top: A pea seedling covered in white sporangiophores, shown as black outlines.
Middle: A bittercress stem, with two seed pods and one lateral leaf. The leaf is covered in sporangiophores.
Bottom: A seedling with three leaves arranged around a central bud. Two of the leaves are covered in sporangiophores.
The original photos were supplied by Prof. Mahmut Tör, who recommended I start drawing plant pathogens!