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05-07-2025 12:38

Åge Oterhals

I found this pyrenomycetous fungi in pine forest o

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Charles Aron Charles Aron

Hi All, I found this Octospora growing with liver

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Castillo Joseba Castillo Joseba

me mandan el material de Galicia (España) recolec

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David Chapados David Chapados

Hi,Does anyone know what could this anamorph be?ht

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Elisabeth Stöckli

Bonsoir,Sur feuilles d'Osmunda regalis (Saulaie),

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Josep Torres Josep Torres

Hello.A fungus growing on the surface of a trunk o

20-06-2025 08:33

Josep Torres Josep Torres

Hello.Small, blackish, mucronated surface grains s

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Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

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Castillo Joseba Castillo Joseba

me mandan el material seco de Galicia (España) 

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Bisporella citrina?
Yatsiuk Iryna, 08-11-2011 16:08
Yatsiuk Iryna

Hello, forum!


There is Bisporella collected on Populus tremula. 


Micro: 


In statu vivo:spores ellipsoid, 14,9-19,3-3,6-5,5 um, with 2-3 large and many small guttules.


Paraphyses guttulate (photo is of low quality and I can attach the drawing if needed)


Asci with croziers, 8-spored, blued in IKI (see photo)


Is it B. citrina? If it is so, why paraphyses are guttulate?


Sincerely, Irina

  • message #16638
  • message #16638
  • message #16638
  • message #16638
Hans-Otto Baral, 08-11-2011 16:35
Hans-Otto Baral
Re : Bisporella citrina?
Hi Irina

the paraphysis is strange, it should contain a homogeneous content in the upper part. Otherwise I also think B. citrina. A section is always good, excipulum should be gelatinized and the hyphae with a almost vertical orientation.

Zotto
Neven Matocec, 08-11-2011 17:01
Neven Matocec
Re : Bisporella citrina?
Hello!

Yes, but be careful, maybe you ovelooked very elongated (with homogenous content) vacuolar bodies in apical cells (the microphoto is very blur) because sometimes they can be of +/- whole cell length. Considering small "guttules" they could be isolated/concentrated yellow carotenoid pigment - the situation I observed in some other ascomycetes with carotenoid pigments where pigment can be separated from VB's and/or LB's. In such cases VB's and LB's are often highly refractive and hyaline or nearly so while pigment are decidedly yellow to orange to red and low refractive if at all...

At least asci are clearly of Calycina type :-) !!

Cheers,
Neven
Yatsiuk Iryna, 09-11-2011 18:16
Yatsiuk Iryna
Re : Bisporella citrina?

Thank you, Zotto and Neven!


Really, in the upper part paraphyses were not-guttulate (probably, gelatinous, but I cannot say it exactly). In the lower part paraphyses contained many small rounded guttules (it's not seen from photo but I saw them very clearly). 


Sincerely,


Irina