15-08-2007 20:10
Beñat Jeannerot
Bonjour à tous, Voilà , je me consacre un peti
10-08-2007 13:19
Yannick Mourgues
Bonjour à tous. Voici un minuscule asco trouvÃ
06-08-2007 23:39
Alain GARDIENNET
Bonsoir, J'ai des problèmes avec un asco de la
06-08-2007 17:55
René DougoudChers Acomycetologues, Je viens de récolter En
03-08-2007 07:25
Alain GARDIENNET
Bonjour, J'ai trouvé sur branche d'Ulmus minor
02-08-2007 22:57
Alain GARDIENNET
Bonsoir, Je ne suis pas un habitué du genre mol
31-07-2007 19:55
Nicolas VAN VOOREN
Bonsoir. Jean-Marc Moingeon m'a confié une pézi
Orange disks
Leif Goodwin,
14-10-2023 11:29
Someone suggested a Purpureodiscus species e.g. P. isabellinus.Â
Help appreciated.
Nicolas VAN VOOREN,
22-10-2023 11:19
Re : Orange disks
Macroscopically it looks like Purpureodiscus subisabellinus, but you should show some mature ascospores (in water). They measure 18.5-23.5 × 11-13 µm and show bipolar spore granules. The amyloid reaction of asci is only visible on the wall (W type), sometimes difficult to see.
Leif Goodwin,
13-11-2023 18:43
Re : Orange disks
Thank you for taking the time to reply, and apologies for my late response. I have given the specimen to someone who will amplify the ITS region of the DNA and then have it sequenced. When he returns it, I will try and find some mature spores. Hopefully the DNA sequencing will give us an answer, but sadly DNA does not always amplify, possibly because the primers are not ideal for ascos.