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27-03-2024 22:53

Charles Aron Charles Aron

Hi All,Recently I came across these minute, setose

26-03-2024 17:14

Juuso Äikäs

These little black ascos were growing on a dead, d

25-03-2024 13:41

B Shelbourne B Shelbourne

• Hyaloscyphaceae (no VBs), Hyaloscypha: Macro a

25-03-2024 21:27

Riet van Oosten Riet van Oosten

Hello, Found by Laurens van der Linde, March 2024

26-03-2024 14:37

DAVID MARCOS DAVID MARCOS

Spores (telles qu'elles apparaissent à l'intérie

24-03-2024 08:27

Thierry Blondelle Thierry Blondelle

HiOn Hedera helix fallen branchEcological habitat:

26-03-2024 11:06

michel bertrand

Bonjour, Malgré de nombreuses recherches, je n'a

25-03-2024 14:08

Ursula Kozik

Bonjour et bonne journée, On m'a envoyé une tro

25-03-2024 03:56

B Shelbourne B Shelbourne

• Scuttelinia: Macro and habitat.• S. scutella

25-03-2024 20:21

DAVID MARCOS DAVID MARCOS

Bonjour, je m'appelle David et je débute dans l'i

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Asco opening with a longitudinal slit on Juniperus
Per Vetlesen, 27-03-2017 10:55
Hi,
I have found this asco two times on bark of Juniperus communis in Stange, Norway. The first time I found it on bark of a dead tree and the second time on bark of an old living tree.
Asci (142.1) 142.5 - 175.6 (188.8) × (23.3) 24.3 - 27.2 (33.4) µm; Q = (5.2) 5.6 - 6.9 (7.2) ; N = 10; Me = 166.6 × 26.2 µm ; Qe = 6.4
Ascospores, mostly 1-septate, some are 3-septate, (45.8) 48 - 57.4 (58.1) × (10.3) 10.7 - 12.6 (14) µm; Q = (3.8) 4.2 - 5 (5.6) ; N = 27; Me = 53.8 × 11.5 µm ; Qe = 4.7
I hope characters shows on the pic, if not please tell me and I will check it again.
Best wishes
Per
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Jason Karakehian, 27-03-2017 16:03
Jason Karakehian
Re : Asco opening with a longitudinal slit on Juniperus
It looks like a bitunicate asus to me, judging by the constrictions at the ascus apex. Nice photos of asci and ascospores!
Per Vetlesen, 28-03-2017 09:46
Re : Asco opening with a longitudinal slit on Juniperus
Thank you for comments. Yes, it is has bitunicate ascus, I think it is a Dothideomycetes, but I have no idea of family or genera.
Alain GARDIENNET, 28-03-2017 18:47
Alain GARDIENNET
Re : Asco opening with a longitudinal slit on Juniperus

Hi Per,


How is the ascomata ? Is it perithecial ? and what about the hamathecium ? Could it be interesting to compare to genus like Ostreichnion ? I think that is not very possible. But it's only an idea.


Alain  

Per Vetlesen, 29-03-2017 13:10
Re : Asco opening with a longitudinal slit on Juniperus
Hi Aain,
I'm novice when it comes to scientific terms (but hope I'm learning) and I hope these pic give answer to your questions.
To me it looks like it is perithecial and opens with small split. I have tried to make better picture of it. When I come to hamathecium I understand that it is the tissue between the asci?
The spores do not have a gelatinous sheet.
I have looked at Ostreichnion at http://www.eboehm.com/, but can't find any that fits.
Per
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Alain GARDIENNET, 29-03-2017 13:25
Alain GARDIENNET
Re : Asco opening with a longitudinal slit on Juniperus

Yes, I agree, it was just an idea. I had other (not good) ideas, like Xenolophium, but not the solution.


It is a beautiful fungus.


Alain


 

Per Vetlesen, 29-03-2017 14:01
Re : Asco opening with a longitudinal slit on Juniperus
Hi,
Thank you very much for trying to help.
I too have thought about Xenolophium.
Yes, it is a nice fungus and the spores are very characteristic.
Per
Jason Karakehian, 29-03-2017 14:25
Jason Karakehian
Re : Asco opening with a longitudinal slit on Juniperus
Is the material air-dried? If so, and if you have material to spare, I may try to get it into culture and sequence it from that. Then we may have a good shot at a good sequence and can see if it blasts to anything, as well as to see if it forms an anamorph in culture. That is if spores will germinate and grow.
Your fungus reminds me of something that I saw in literature in passing while trying to figure out another of these intactable brown-spored, single-septate, bitunicates. I can only get so far as "Dothideomycetes, Pleosporales, sp."! I will try to retrace my steps and see if I can't find what I saw in the literature.
Per Vetlesen, 29-03-2017 21:17
Re : Asco opening with a longitudinal slit on Juniperus
Hi Jason,
That's great! The material is air dried, but I will try to find some more before sending it to you.
Per