Pythium porphyrae from doi.org10.4490algae.2014.29.4.249_0.jpg

The images have been published in Kim et al., 2014 (http://dx.doi.org/10.4490/algae.2014.29.4.249) and are reproduced in agreement with the Create Commons Attribution Non-Commercial licence for this article.

a) Infected blades of Pyropia show discoloured patches (violet-red) which will disintegrate at a later stage of infection. b, c) Mycelium of Pythium porphyrae grows through the host cells evoking the death of those algal cells.