23-04-2024 21:49
Ethan CrensonHello all, A friend recently found this orange as
23-04-2024 15:18
Lothar Krieglsteiner
... but likely a basidiomycete. I hope it is o.k.
22-04-2024 11:52
Zuzana Sochorová (Egertová)
Hello,I made a loan of a collection of Microstoma
23-04-2024 13:17
Edouard Evangelisti
Bonjour à tous, Je viens de récolter ce que je
11-01-2022 16:36
Jason Karakehian
Hi does anyone have a digital copy of Raitviir A (
22-04-2024 20:38
Miguel Ángel Ribes
Good afternoon.Does anyone know this anamorph?It g
19-04-2024 14:28
B Shelbourne
Cudoniella tenuispora: Distinctive macro and habit
20-04-2024 16:02
Michel Hairaud
Bonjour,On me fait part, pour diffusion d une list
Calycina conorum
Yannick Mourgues,
01-02-2008 23:49
Bonsoir.J'ai observé que Calycina conorum rougissait fortement à la blessure. Est-ce que l'un d'entre vous saurait pourquoi ? Quelle est la réaction chimique responsable de cela ?
I have watched that Calycina conorum becomes strongly reddening when hurted. Do you know why ? What is the chemical process ?
Merci par avance.
Yannick
Perz Piotr,
02-02-2008 09:39
Re:Calycina conorum
Hi Yannick
I thint this is oxidation of VBs i paraphyses, marginal- & excipulum cells.
Pimpek
I thint this is oxidation of VBs i paraphyses, marginal- & excipulum cells.
Pimpek
Hans-Otto Baral,
02-02-2008 11:38
Re:Calycina conorum
Yes, it is a wide-spread property in Helotiales and always the result of oxidation of refractive vacuoles. Typical of Lachnum, Bryoscyphus, some of Calycina etc. I think it has to do with benzol rings in which the double bindings change through oxidation and therefore get coloured. It is always a lethal process so that redbrown paraphysis or hair cells are never coloured as long as they are alive.
We have so important vital characters like VBs and we know so little about thier chemical background. It would be an interesting field of research for chemistry.
Zotto
We have so important vital characters like VBs and we know so little about thier chemical background. It would be an interesting field of research for chemistry.
Zotto