Asco qui teint en rouge - Forum ASCOFrance

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Asco qui teint en rouge

Alan Smith, 13-12-2016 22:05

J'ai trouvé ce bois coloré sur la branche morte - sans écorce - d'un arbre vivant (Quercus). Près de là sont des corps très petits avec une coloration mineure en dessous - avec la même couleur de vin rouge. Les corps semblent avoir un rebord et contiennent beaucoup d'asci en développement. Mais je n'ai pas trouvé de spores individuelles. De Sheffield, en Angleterre. Est-ce que quelqu'un le reconnaît? (Français avec l'aide de Google Translate!)
Merci, Alan

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I have found this stained wood on the dead branch - without bark - of a living tree (Quercus). Close by are some very small fruit bodies with minor staining beneath - with the same colour. The fruit bodies seem to have a rim and contain many developing ascos. But I have not found any individual spores. From Sheffield, England. Does anyone recognise this?
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Hans-Otto Baral, 13-12-2016 22:39

Re : Asco qui teint en rouge

the spores can be seen inside the asci. it seems a discomycete, judging from the microscopy. but this needs higher resolution

Alan Smith, 14-12-2016 00:17

Re : Asco qui teint en rouge

thank you, Hans-Otto

It is the red staining of the wood that I find unusual here, so rather than find a definite species, I wonder whether it can be identified to a genus or to a number of possibilities?

Alan

Peter Püwert, 14-12-2016 03:02

Re : Asco qui teint en rouge

Hi Alan,
some ascomycetes color the substrate redly, here a few examples.
Greetings Peter.

Alan Smith, 14-12-2016 21:12

Re : Asco qui teint en rouge

thanks Peter

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