Accès membres

Mot de passe perdu? S'inscrire

18-12-2025 21:17

Pol Debaenst

The identification took me to Byssonectria deformi

15-12-2025 07:09

Danny Newman Danny Newman

indet. Rutstroemiaceae sp. on unk. fallen leavesMc

19-12-2025 10:10

Patrice TANCHAUD

Bonjour, récolte réalisée en milieu dunaire, a

18-12-2025 17:23

Bruno Coué Bruno Coué

Bonjour,je serais heureux d'avoir votre avis sur c

18-12-2025 18:07

Margot en Geert Vullings

These plumes were found on rotten wood.They strong

17-12-2025 18:35

Michel Hairaud Michel Hairaud

Bonjour à tous/Hi to everyone I am passing along

21-11-2025 10:47

François Freléchoux François Freléchoux

Bonjour,Peut-être Mollisia palustris ?Trouvée su

15-12-2025 15:48

Danny Newman Danny Newman

Melanospora cf. lagenaria on old, rotting, fallen

15-12-2025 15:54

Johan Boonefaes Johan Boonefaes

Unknown anamorph found on the ground in coastal sa

15-12-2025 21:11

Hardware Tony Hardware Tony

Small clavate hairs, negative croziers and IKI bb

« < 1 2 3 4 5 > »
asco bleu à grande spore (mais immature)
M Jonathan, 23-11-2014 21:09
M Jonathanrécolté en chambre humide, (sur du bois peu pourri) un bel ascomycete bleu, la majorité des éléments était encore fortement immature, mais certaine asque présentait des spores fortement immature (dimension 35-40*7-10). trop jeune peut être pour être identifié, mais il me semble distinctif. beaucoup de granule sur les paraphyse et celle-ci sont faiblement ramifié. 

https://farm8.staticflickr.com/7506/15242215623_b8fd989e88_b.jpg

Jonathan M

Hans-Otto Baral, 23-11-2014 21:22
Hans-Otto Baral
Re : asco bleu à grande spore (mais immature)
Hi Jonathan

this looks to me to be a Patellaria close to P. atrata. I distinguish a P. crassispora nom. prov. which has a blue pigment and in which the slightly wider spores are much less tapered towards base and tend to be multiguttulate.

Zotto
M Jonathan, 23-11-2014 21:29
M Jonathan
Re : asco bleu à grande spore (mais immature)
thank you, P atrata was one of my suspected specie, but i though it was supposed to be almost pure black, but time will tell, they might get mature in the damp chamber, so i will be able to confirm if this is indeed P crassipes.
Hans-Otto Baral, 23-11-2014 22:55
Hans-Otto Baral
Re : asco bleu à grande spore (mais immature)
Yes, try maturation! P. atrata has an olivaceous pigment around the tips of paraphyses whereas P. crassispora a bluish.
M Jonathan, 24-11-2014 01:49
M Jonathan
Re : asco bleu à grande spore (mais immature)
from this point, how long do you think it should take for it to be fully mature?
Hans-Otto Baral, 24-11-2014 09:37
Hans-Otto Baral
Re : asco bleu à grande spore (mais immature)
This is difficult. usually these fungi are most of their time dry. When you keep them prmanently moist it can be that they get overgwon by faster-growing fungi. Patellaria withstands many weeks of compete dryness. How fast they mature I do not know, but max. 1 week should be enough to get an immature ascus mature I think.
M Jonathan, 27-11-2014 15:40
M Jonathan
Re : asco bleu à grande spore (mais immature)
i found some mature one on the same piece of wood, it a shame that those picture do not show how much blue the paraphyse tip actually are, if you want i dry it and ask someone to make culture of them and then sequence it.

spore 50-53*10-12


https://farm8.staticflickr.com/7544/15702336837_87832d0f03_b.jpg
https://farm8.staticflickr.com/7570/15702063909_6bc8535317_b.jpg
https://farm9.staticflickr.com/8583/15886160211_75dc54c393_b.jpg 
https://farm9.staticflickr.com/8583/15886160211_75dc54c393_b.jpg
in situ, the blueish tint is faint but clear

Hans-Otto Baral, 27-11-2014 18:24
Hans-Otto Baral
Re : asco bleu à grande spore (mais immature)
Yes, I know this photography problem with colours....

If you have the possibility for a culture and sequence this would be fine . Long ago we cultured P. atrata and P. andina, and they both formed a coelomycetous anamorph (unreported in the literature to our knowledge).

Sequences are only a few in GenBank about Patellaria, so this would be valuable in any case!

Zotto
M Jonathan, 27-11-2014 18:36
M Jonathan
Re : asco bleu à grande spore (mais immature)
thank you! i try my best with a quite cheap microscope!

do you know what media was used for the cultures? i will start to dry them today, but it will probably take a few week before i can go to the laboratory again

regards.
Hans-Otto Baral, 27-11-2014 20:27
Hans-Otto Baral
Re : asco bleu à grande spore (mais immature)
The species will easily survive some weeks. The menia we used were usually CMA or MEA, often only half of the normal concentration. I think this species is rather easily to culture.

Zotto