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30-06-2025 14:45

Götz Palfner Götz Palfner

This is a quite common species on Nothofagus wood

30-06-2025 12:09

Edvin Johannesen Edvin Johannesen

This tiny, rather "rough" erumpent asco was found

30-06-2025 16:56

Lydia Koelmans

Please can anyone tell me the species name of the

30-06-2025 06:57

Ethan Crenson

Hi all, Another find by a friend yesterday in Bro

30-06-2025 19:05

ALAIN BOUVIER

Bonjour à toutes et à tousJe cherche à lire l'a

25-06-2025 16:56

Philippe PELLICIER

Bonjour, pensez-vous que S. ceijpii soit le nom co

29-06-2025 18:11

Ethan Crenson

Hello all, A friend found this disco yesterday in

28-06-2025 17:10

Peter Welt Peter Welt

I'm looking for: RANALLI, M.E., GAMUNDÍ, I.J. 19

28-06-2025 16:00

Josep Torres Josep Torres

Hello.A tiny fungus shaped like globose black grai

27-06-2025 14:09

Åge Oterhals

I found this pyrenomycetous fungi in mountain area

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Appendages and sheaths
Jac Gelderblom, 23-08-2013 13:29
Dear friends

The keys of Shoemaker on Ophiobolus and Phaeosphaeria make use of "appendages" (Ophiobolus) and "sheaths" (Phaeosphaeria) for sporefeatures. I usually make my mounts in water and the I never see appendages nor sheaths. Should I use other reagentia to see them?
Who can give me advise in this matter?

Greetings

Jac Gelderblom
Francisco Calaça, 23-08-2013 13:53
Francisco Calaça
Re : Appendages and sheaths
Hello Jac,
usually, only the direct mounting in water, it's difficult to see the pageants gelatinous ("appendages" and "sheaths"). I, usually, use some reagents that facilitate the visualization, cuz they're hyaline, microscopy common is really complicated. I use the congo red (works with Podospora species), is reasonably good. Another option is the indian ink. Sometimes lactophenol is good.
Stay fine,
Francisco Calaça.
Yannick Mourgues, 23-08-2013 13:55
Yannick Mourgues
Re : Appendages and sheaths
To see gel sheaths, I use Indian Ink.
Y
Joop van der Lee, 23-08-2013 19:31
Joop van der Lee
Re : Appendages and sheaths
Most of the time appendages break off easily when spores are mature. When examening these species in water I do not use much pressure on the deck glass so it gives you the opportunity to look at young spores still in the ascus where appendages are still connected. When you are lucky you might also see them on mature spores but be carefull not to put too much pressure on the deck glass.
  • message #24887
  • message #24887
  • message #24887
Jac Gelderblom, 27-08-2013 15:21
Re : Appendages and sheaths
Dear friends

Thanks for your advices.
I made mounts of Ophiobolus niesslii in water and indian ink and the and the caps at the end of the spores ware clearly visible in indian ink.

Greetings   

 Jac
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  • message #24923