Marine fungus
Mycaureola dilseae
- circular necrotic lesion
on Dilsea carnosa 2
Marine fungus
Mycaureola dilseae
- circular necrotic lesion
on Dilsea carnosa 3
Marine fungus
Mycaureola dilseae
- circular necrotic lesion
on Dilsea carnosa 3
Marine fungus
Mycaureola dilseae
- circular necrotic lesion
on Dilsea carnosa 1
Marine fungus
Mycaureola dilseae
- close-up white / green zone 1
Marine fungus
Mycaureola dilseae
- close-up white / green zone 2
Marine fungus
Mycaureola dilseae
- Dilsea carnosa, Red Rags 1
Mycaureola dilseae here was found on a piece of Dilsea carnosa, Red Rags, as driftweed at Lariggan Rocks, Penzance, Cornwall, 31.08.18.
Lesions are reported as having a maximum diameter of 20mm. The inner part of the lesion is typically white, this is where all the algal photosynthetic pigments have broken down. Out from this there is a 2-4mm greenish zone where the phycobilin pigments have been degraded, this then meets the red uninfected normal tissue.
Ref:
Mycaureola dilseae, a marine basidiomycete parasite of the red alga, Dilsea carnosa by D. Porter and W.. F. Farnham. Trans. Br. mycol. Soc. 87 (4), 575-582 (1986).