09-12-2025 12:06
Andgelo Mombert
Bonjour,Je recherche l'article concernant Hypobryo
12-12-2025 18:39
Mirek GrycHello everyone.Macrofeatures similar to Mollisia b
07-12-2025 16:07
Arnold BüschlenHallo, ich habe in einer Moos-Aufsammlung (epiphy
08-12-2025 21:04
Mark Stevens"Hello everyone,I'm relatively new to microscopy (
08-12-2025 18:59
Lothar Krieglsteiner
.. found by a seminar-participant, I do not know t
08-12-2025 17:37
Lothar Krieglsteiner
20.6.25, on branch of Abies infected and thickened
What fungus produces a silvery sheen and black droplets ?
Stephen Martin Mifsud,
17-11-2022 21:18
I am examining a presumed fungus that produce a silvery sheen under the epidermis and exudates some sort of tiny black droplet on the leaf surface. I have dissected small leaf segments (0.5-1.0 mm) and dropped them on some media perhaps I can cultivate the fungus. This was found on Ferula melitensis which is quite resistant to fungal phytopathens. I dont think it is a soot fungus , but I am all ears to suggestions!
Björn Sothmann,
17-11-2022 21:39
Re : What fungus produces a silvery sheen and black droplets ?
Hii Stephen,
it's not easy to judge based on these macroscopic pictures, but it would be some powdery mildews where you can see the white anamorph and the dark chasmothecia.
Björn
Stephen Martin Mifsud,
20-11-2022 20:23
Re : What fungus produces a silvery sheen and black droplets ?
Thank you Björn. I have dropped some small pieces on Sabourad and PDa and see what I get and report back. I was confused with the 'black droplets'
Stephen Martin Mifsud,
22-11-2022 20:39
Re : What fungus produces a silvery sheen and black droplets ?
Well we have something workable (arrows) . I guess the mildew in question is the white fluffy colony. I will subculture from this mycelium and in the meantime check if there are some conidiophores/condia to lead to some identification. I am interested coz I seldom see this common endemic plant infected. Underlying is a dull green presence (Penicillium-ish)
