Accès membres

Mot de passe perdu? S'inscrire

02-07-2025 18:45

Elisabeth Stöckli

Bonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

02-07-2025 17:26

Yanick BOULANGER

BonjourRécolté sur une brindille au fond d'un fo

02-07-2025 09:32

Nicolas VAN VOOREN Nicolas VAN VOOREN

Hello, bonjour.Here is the paper I'm searching for

30-06-2025 16:56

Lydia Koelmans

Please can anyone tell me the species name of the

01-07-2025 23:37

Josep Torres Josep Torres

Hello.A Pleosporal symbiotic organism located and

30-06-2025 12:09

Edvin Johannesen Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 06:57

Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

30-06-2025 19:05

ALAIN BOUVIER

Bonjour à toutes et à tousJe cherche à lire l'a

30-06-2025 14:45

Götz Palfner Götz Palfner

This is a quite common species on Nothofagus wood

25-06-2025 16:56

Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

« < 1 2 3 4 5 > »
Trichopezizella rubroguttata (?) sur Polygonatum multiflorum
Bernard CLESSE, 03-02-2018 21:28
Bernard CLESSEBonsoir tout le monde,

Trouvé récemment ce que je pense être Trichopezizella rubroguttata sur sceau de Salomon multiflore. Les asques ont systématiquement un crochet à la base.

Qu'en pensez-vous ?

Bernard

  • message #52152
  • message #52152
Hans-Otto Baral, 03-02-2018 21:46
Hans-Otto Baral
Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum
It is a good question, but the asci look a bit strange, their contents are guttulate unlike these Trichopezizellas. The asci are amyloid?
You don't find living asci and free spores?
Bernard CLESSE, 03-02-2018 21:49
Bernard CLESSE
Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum
Good evening Zotto,

The asci are IKI- and I have not found any spores, but lots of small conidia.


Bernard

Bernard CLESSE, 03-02-2018 21:52
Bernard CLESSE
Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum
I'll double check if I see spores in other apothecia

Bernard
Bernard CLESSE, 03-02-2018 22:31
Bernard CLESSE
Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum
In fact, these thousands of small spores (or conidia?) of different sizes and shapes that I see under the microscope come from inside asci, I do not understand much about it.

Bernard

  • message #52157
Bernard CLESSE, 05-02-2018 14:49
Bernard CLESSE
Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum
Hi Zotto,

Would you have a conclusion for this Trichopezizella with these asci and these strange spores ?

Bernard
Hans-Otto Baral, 05-02-2018 16:08
Hans-Otto Baral
Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum
Yes, now I have. It was my suspicion, but I wasn't sure at all. You have two organisms in one: T. nidulus with the hymenialparasite Helicogonium- I guess a new species.

Would be good to photograph more of the normal spores, they are actually the ascuspores. Especially the stage when they produce a terminal conidium is important since some species form conidia on the broader and and some on the narrower, but this is a bit variable.

In any case spore and conidial size should be measured.

You can consult my paper on the genus in Nova Hedwigia 69: 1-71.

I send it by mail.

Zotto
Bernard CLESSE, 05-02-2018 16:14
Bernard CLESSE
Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum
Interesting! I learn every day (I did not know there were parasitic fungi inside asci). I will wait for your mail to see more clearly.

Thank you very much, Zotto!

Hans-Otto Baral, 05-02-2018 17:28
Hans-Otto Baral
Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum
Not inside asci, the complete asci belong to the parasite. Therefore they are inamyloid (in all Helicogonium), and have croziers.
Bernard CLESSE, 05-02-2018 17:33
Bernard CLESSE
Re : Trichopezizella rubroguttata (?) sur Polygonatum multiflorum
Ah OK, Zotto, I understand better and so I photographed helicogonium asques ...
Thank you for your additional explanations

Bernard