
17-04-2012 02:28

Hello everyonewhile examining dead stems of Vaccin

16-04-2012 20:20
Hi to allI have collected these stromata with blac

17-04-2012 00:06
Peter ThompsonI found a small group of thyriothecia fruit bodies

01-02-2012 12:44

Hallo everybody,I have watched this forum quite so

15-04-2012 18:31

Hi all,I have found a very interesting lophiostomo

14-04-2012 15:46

In questi ultimi mesi ho lavorato alla catalogazio

13-04-2012 20:18
Hello,I have problems to obtain copies of the foll

12-04-2012 13:57
René DougoudChers Tous,Je recherche les publications ci-desous
Calycina conorum
Yannick Mourgues,
01-02-2008 23:49

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