06-12-2015 15:57
Alain GARDIENNET
Hi forum, Here is a fungus immersed in Cornus san
06-12-2015 13:07
Cvenkel MiranphotoLoc.: Slovenia, on Fagus.
06-12-2015 13:02
Cvenkel MiranLoc.: Slovenia. No hairs as far as I can see.photo
01-12-2015 12:07
Bernard CLESSE
Sur aiguilles de Pinus sylvestris. Spores filiform
02-12-2015 20:48
Joop van der Lee
Found on cow dung.Apotheca dark yellow.Asci: 49-5
01-12-2015 12:05
Bernard CLESSE
Sur tiges mortes d'Equisetum palustre dans un bas-
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