Hysteropeltella? - Forum ASCOFrance

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Hysteropeltella?

Angel Pintos, 24-12-2016 18:17

On Juniperus sp.
Ascomata hysteriform no carbonaceus
Asci Clavate, bitunicate
paraphysis filiform
Ascospores asymetric, 5 septa, hyaline surrounded by a thick gelatinous sheath.
thank for your help

Hans-Otto Baral, 25-12-2016 08:57

Re : Hysteropeltella?

Ah, not sure what this is. Hysteropatella I only know without gel sheath.
Hysteropeltella has 1-septate spores and only one species on a fern is known.

Did you test IKI?

Angel Pintos, 25-12-2016 09:42

Re : Hysteropeltella?

Hi Zotto, I did it wiht lugol and all the hamathecium became red. no reaction blue in asci.(I have no IKI)

I am confussed with it, The ascomata fits wiht both of them, I would like to find the descriptions of Hysteropatella species. Hysteropeltella as you said only has one specie" moravica".
I will continue......

best regards
Angel

Hans-Otto Baral, 25-12-2016 10:05

Re : Hysteropeltella?

Lugol and IKI is the same and only varies in concentration.

If it turns red, you should make the test with KOH-pretreatment. Adding 2-10% KOH for some seconds on the slide, then washing with a drop of water, and then add Lugol. I suspect it will then react deep blue.

Hysteropatella is competely inamyloid.

Angel Pintos, 25-12-2016 10:25

Re : Hysteropeltella?

This is the result of it

Hans-Otto Baral, 25-12-2016 10:33

Re : Hysteropeltella?

This orange colour may really be a hemiamyloid reaction.
See on my homepage

http://invivoveritas.de/articles/iodine-reaction-in-ascomycetes-why-is-lugols-solution-superior-to-melzers-reagent/

Angel Pintos, 25-12-2016 11:00

Re : Hysteropeltella?

But is not reaction on apical ring of asci. In Hysteropatella no any coment about lugol´s reaction.

I am lost with it by the moment

Regards
Angel

Hans-Otto Baral, 25-12-2016 11:41

Re : Hysteropeltella?

Hysteropatella spp. are completely inamyloid, whatever you do. You can look in my folder on
http://invivoveritas.de/ascomycetes-illustrations/
go to 4b Dothideomycetes
then Patellariales IKI-

I assume in your species the gel around the asci is strongly hemiamyloid , but I am not sure.

Angel Pintos, 26-12-2016 07:44

Re : Hysteropeltella?

Thanks a lot for your help,
saludos
Angel

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