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Stefan JakobssonOn a necrotic section of a living Tilia cordata I
A beautiful piece of art by Podospora setosa species
Joop van der Lee,
10-10-2020 11:46
Found on rabbit pallets.I have never seen this phenomenon during my research, the resease of asci from P. setosa.
In a field of P. setosa of over 50 species the process of asci release was in full swing.
At first a sticky bubble is released out of the ostiole channel and after that one by one the asci are creating these small pieces of art.
Photos 1 & 2 are showing the ongoing process fisrts one is coming out and 5 seconds later the second one joins.
The other photos are final crations.
Joop
David Malloch,
10-10-2020 18:13
Re : A beautiful piece of art by Podospora setosa species
Hello Joop..
Great photos! It is unusual to see so many asci crowded at the top of a perithecium like that. Usually you would expect them to migrate up to the ostiole and then discharge their ascospores. I wonder if conditions were too dry to allow the spores to be discharged. Maybe those are just the masses of ascospores held together by the gelatinous appendages. Did you make a mount of the asci to see if the walls were still intact?
David
Great photos! It is unusual to see so many asci crowded at the top of a perithecium like that. Usually you would expect them to migrate up to the ostiole and then discharge their ascospores. I wonder if conditions were too dry to allow the spores to be discharged. Maybe those are just the masses of ascospores held together by the gelatinous appendages. Did you make a mount of the asci to see if the walls were still intact?
David
Joop van der Lee,
12-10-2020 18:12
Re : A beautiful piece of art by Podospora setosa species
Sorry David I did not check the asci.
Joop
Joop